709 Commits

Author	SHA1	Message	Date
Aliaksandr Valialkin	d0c830039d	lib/storage: tune cache sizes according to production workload	2021-07-05 15:16:11 +03:00
Aliaksandr Valialkin	43103be011	lib/{storage,mergeset}: increase cache timeout for data and index blocks from a minute to two minutes ... One minute cache timeout result in slower queries in some production workloads where the interval between query execution is in the range 1 minute - 2 minutes.	2021-07-05 15:16:11 +03:00
Aliaksandr Valialkin	9a83e9018d	lib/storage: properly detect free disk space shortage during data merge ... Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1373	2021-07-02 17:40:54 +03:00
Aliaksandr Valialkin	c93cee8de8	lib/{mergeset,storage}: reduce the maximum lifetime for cached indexdb and data blocks from 2 minutes to a minute ... This should reduce memory usage on a system with high number of active time series and a high churn rate. One minute is enough for caching the blocks needed for repeated queries (e.g. alerting rules, recording rules and dashboard refreshes).	2021-06-29 19:57:07 +03:00
Aliaksandr Valialkin	5506cff76e	lib/storage: put indexDBName into the key for dateTagFilter cache and for uselessTagFilters cache ... This should prevent from stats overwriting when the previous indexdb is queried.	2021-06-29 12:40:05 +03:00
Aliaksandr Valialkin	c22114c6f0	lib/storage: tune tag filters search logic ... Tune the logic according to the logs provided at https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1338#issuecomment-864293624 The previous logic had a race when multiple concurrent queries execute the same tag filter without prior stats. This could result in incorrectly stored stats for such tag filter, which then could result in non-optimal sorting of tag filters for further queries. Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1338	2021-06-23 13:29:39 +03:00
Aliaksandr Valialkin	dcbc22552f	lib/storage: fix infinite loop introduced in aa9b56a046	2021-06-17 14:28:10 +03:00
Aliaksandr Valialkin	aa9b56a046	lib/{mergeset,storage}: reduce the number of fsync calls on data ingestion path on systems with many cpu cores ... VictoriaMetrics maintains a buffer per CPU core for the ingested data. These buffers are flushed to disk every second. These buffers are flushed to disk in parallel starting from the commit 56b6b893ce . This resulted in increased write disk IO usage on systems with many cpu cores as described at https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1338#issuecomment-863046999 . This commit merges the per-CPU buffers into bigger in-memory buffers before flushing them to disk. This should reduce the rate of fsync syscalls and, consequently, the write disk IO on systems with many CPU cores. This should help https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1338 See also https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1244	2021-06-17 13:52:08 +03:00
Aliaksandr Valialkin	84fb59b0ba	lib/storage: move deletedMetricIDs set from indexDB to Storage ... This makes consitent the list of deleted metricIDs when it is used from both the current indexDB and the previous indexDB (aka extDB). This should fix the issue, which could lead to storing new samples under deleted metricIDs after indexDB rotation. See more details at https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1347#issuecomment-861232136 . Thanks to @tangqipengleoo for the initial analysis and the pull request - https://github.com/VictoriaMetrics/VictoriaMetrics/pull/1383 . This commit resolves the issue in more generic way compared to https://github.com/VictoriaMetrics/VictoriaMetrics/pull/1383 . The downside of the commit is the deletedMetricIDs set isn't cleaned from the metricIDs outside the retention. It needs app restart. This should be OK in most cases.	2021-06-15 15:04:30 +03:00
Aliaksandr Valialkin	c4f3fbfa5d	lib/storage: reset cache on disk during series deletion and during indexdb rotation ... This should prevent from inconsistent behavior (aka partially missing data for some time series) after unclean shutdown. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1347	2021-06-11 12:42:28 +03:00
Aliaksandr Valialkin	69b1482bdb	lib/storage: consistency renaming: getMaxRawRowsPerPartition -> getMaxRawRowsPerShard	2021-06-11 10:57:23 +03:00
Aliaksandr Valialkin	044ab46824	lib/storage: reduce the amounts of memory which can be occupied by rawRow items during data ingestion on a system with many CPU cores	2021-06-11 10:57:23 +03:00
Aliaksandr Valialkin	96b691a0ab	lib/storage: properly account the number of loops spent when matching for or suffixes ... This may help https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1338	2021-06-08 13:06:12 +03:00
Aliaksandr Valialkin	2d8bd41f8a	lib/storage: reduce memory allocations when syncing dateMetricIDCache	2021-06-03 16:20:42 +03:00
Aliaksandr Valialkin	39ef1e7a51	lib/storage: do not stop data ingestion on the first error in Storage.AddRows ... Continue data ingestion for the rest of blocks.	2021-05-24 15:32:47 +03:00
Aliaksandr Valialkin	4b01c9fb2e	lib/storage: limit the number of rows per each block in Storage.AddRows() ... This should reduce memory usage when ingesting big blocks or rows.	2021-05-24 15:24:07 +03:00
Aliaksandr Valialkin	a4ff4b8e65	lib/storage: allow filling all the rows up to their capacity in rawRowsShard.addRows ... This should reduce memory usage a bit on data ingestion path	2021-05-24 15:22:59 +03:00
Aliaksandr Valialkin	f54133b200	lib/storage: do not populate MetricID->MetricName cache during data ingestion ... This cache isn't needed during data ingestion, so there is no need in spending RAM on it. This reduces RAM usage on data ingestion path by 30%	2021-05-24 03:02:46 +03:00
Aliaksandr Valialkin	ec79abc382	lib/{mergeset,storage}: reduce the number of IFNO log messages like merged ... items across ... blocks in ... seconds ... Log these messages if the merge takes more than 30 seconds instead of 10 seconds.	2021-05-23 14:03:21 +03:00
Aliaksandr Valialkin	ad73f226ff	app/vmstorage: add ability to limit series cardinality via -storage.maxHourlySeries and -storage.maxDailySeries command-line flags	2021-05-20 14:15:19 +03:00
Aliaksandr Valialkin	009e136d88	lib/storage: remove possible data race when logging dropped labels	2021-05-20 02:47:22 +03:00
Aliaksandr Valialkin	d7be2753c0	lib/storage: substitute GetTSDBStatusForDate with GetTSDBStatusWithFiltersForDate with nil tfss	2021-05-13 09:02:33 +03:00
Aliaksandr Valialkin	a22a17dc66	lib/storage: merge getTSDBStatusForDate with getTSDBStatusWithFiltersForDate ... These functions are non-trivial, while their code has minimal differences. It is better from maintainability PoV to merge these functions into a single function.	2021-05-12 17:56:53 +03:00
Aliaksandr Valialkin	832651c6c2	app/vmselect: follow up after 8a0678678b ... Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1168	2021-05-12 17:18:30 +03:00
Nikolay	8a0678678b	Adds tsdb match filters (#1282) ... * init work on filters * init propose for status filters * fixes tsdb status adds test * fix bug * removes checks from test	2021-05-12 15:18:45 +03:00
Aliaksandr Valialkin	33f7bacb01	lib/storage: properly apply time range when matching an empty filter ... It must match all the time series on the given time range. Previously it was matched to all the time series without the restriction on the given time range.	2021-05-11 01:12:05 +03:00
Aliaksandr Valialkin	75c2c813fc	lib/storage: remove dead code after the commit 3ccf7ea20c	2021-05-08 20:14:11 +03:00
Aliaksandr Valialkin	12d733dd5d	app/vminsert: add support for data ingestion via other vminsert nodes	2021-05-08 19:52:57 +03:00
Aliaksandr Valialkin	76027093ca	lib/storage: use WARNING instead of INFO level for logging dropped labels	2021-05-03 13:56:43 +03:00
Nikolay	477369b62f	adds stalePartsRemover (#1261) ... for new created partitions	2021-05-03 11:34:00 +03:00
Aliaksandr Valialkin	58d1e6eeea	lib/storage: log dropped labels if the number of labels in a metric exceeds -maxLabelsPerTimeseries command-line flag value ... This should improve debuggability for this case.	2021-05-01 09:27:55 +03:00
Aliaksandr Valialkin	87179c6839	lib/{storage,mergeset}: fix unaligned 64-bit atomic operation panic for 32-bit architectures ... The panic has been introduced in 56b6b893ce	2021-04-27 16:41:32 +03:00
Aliaksandr Valialkin	56b6b893ce	lib/mergeset: split rows ingestion among multiple shards ... This improves rows ingestion on systems with many CPU cores by reducing lock contention. Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1244 Thanks to @waldoweng for the original idea and draft implementation at https://github.com/VictoriaMetrics/VictoriaMetrics/pull/1243	2021-04-27 15:36:34 +03:00
Aliaksandr Valialkin	f89c1f7f49	lib/storage: typo fix in info message when deleting the part outside the configured retention ... Previously the message was displaying incorrect retention time	2021-04-27 13:32:46 +03:00
Aliaksandr Valialkin	bbebdf9ba1	lib/{storage,mergeset}: remove empty directories on startup. Such directories can be left after unclean shutdown on NFS storage ... Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1142	2021-04-22 13:02:44 +03:00
Aliaksandr Valialkin	251747e253	lib/storage: code clarification: remove caching the found metricName in searchMetricName	2021-04-13 10:22:21 +03:00
Aliaksandr Valialkin	df32d2836c	lib/storage: properly handle big time ranges passed to /api/v1/labels and /api/v1/label/<labelName>/values ... It should be faster querying all the labels and/or all the values instead of querying per-day labels/values on time ranges exceeding maxDaysForPerDaySearch	2021-04-07 13:33:46 +03:00
Aliaksandr Valialkin	dc9eafcd02	app/{vminsert,vmagent}: add -sortLabels command-line option for sorting time series labels before ingesting them in the storage ... This option can be useful when samples for the same time series are ingested with distinct order of labels. For example, metric{k1="v1",k2="v2"} and metric{k2="v2",k1="v1"}.	2021-03-31 23:27:58 +03:00
Aliaksandr Valialkin	e1f699bb6c	lib/storage: reduce memory usage when ingesting samples for the same time series with distinct order of labels	2021-03-31 21:24:46 +03:00
Aliaksandr Valialkin	2601cc0fb0	lib/storage: do not update b.nextIdx if no samples are removed because of retention	2021-03-29 12:00:21 +03:00
Aliaksandr Valialkin	aa81039b42	app/vmselect: log the metric which trigger rollup result cache reset ... This should help finding the source of stale metrics	2021-03-25 21:31:39 +02:00
Aliaksandr Valialkin	6e855d4b82	lib/storage: tune loopsCountPerMetricNameMatch according to production workload	2021-03-25 13:27:47 +02:00
Aliaksandr Valialkin	3a3d2165f9	lib/storage: do not reload metricName for the same metricID in Search.NextMetricBlock ... This should speed up Search.NextMetricBlock a bit	2021-03-23 17:56:49 +02:00
Aliaksandr Valialkin	3cfb3a3683	lib/storage: respect the deadline passed to Storage.SearchMetricNames	2021-03-22 23:03:17 +02:00
Aliaksandr Valialkin	8e2afdf568	lib/storage: improve Search.NextMetricBlock performance by using MetricID->MetricName cache	2021-03-22 22:49:18 +02:00
Aliaksandr Valialkin	910092ca4d	lib/storage: tune loopsCountPerMetricNameMatch	2021-03-22 12:53:17 +02:00
Aliaksandr Valialkin	726f6ad804	lib/storage: small code simplification after 6cee5338b2	2021-03-18 15:21:13 +02:00
Aliaksandr Valialkin	6cee5338b2	lib/storage: prevent from infinite loop if {__graphite__="..."} filter matches a metric name with *, [ or { chars ... The idea has been borrowed from https://github.com/VictoriaMetrics/VictoriaMetrics/pull/1137	2021-03-18 14:53:47 +02:00
Aliaksandr Valialkin	45dabfac1b	lib/storage: faster move heavy filters to the end of list	2021-03-17 15:12:13 +02:00
Aliaksandr Valialkin	ccfb0ae2d3	lib/storage: limit loops count in order to reduce max CPU usage during filter search	2021-03-17 00:49:26 +02:00
Aliaksandr Valialkin	576a80b3d9	lib/storage: do not modify filterLoopsCount stats with loopsCount stats ... Such a modification can result in incorrect filter sorting later	2021-03-17 00:49:26 +02:00
Aliaksandr Valialkin	fd86a7dc1d	lib/storage: time series search optimization according to production workload profiling ... Do not pass filter metric ids to getMetricIDsForTagFilter, since it has been appeared that this slows down the function by multiple times when it finds big number of metricIDs (tens of millions).	2021-03-16 20:01:43 +02:00
Aliaksandr Valialkin	e36fbfae5b	lib/storage: further tuning for time series search	2021-03-16 18:46:22 +02:00
Aliaksandr Valialkin	dd7e82c34f	app/vmstorage: add -logNewSeries command-line flag for determining the source of series churn rate	2021-03-15 22:38:50 +02:00
Aliaksandr Valialkin	9c77e34ef9	lib/storage: further tuning for time series selector code	2021-03-15 20:31:34 +02:00
Aliaksandr Valialkin	3ccf7ea20c	lib/storage: tune per-day index search	2021-03-15 13:31:55 +02:00
Aliaksandr Valialkin	f669531506	lib/storage: further tune filters sorting logic	2021-03-12 00:53:04 +02:00
John Belmonte	364fdf4a56	spelling fix: adjacent (#1115)	2021-03-09 09:18:19 +02:00
Aliaksandr Valialkin	345980f78f	lib/storage: go fmt	2021-03-08 12:03:31 +02:00
Aliaksandr Valialkin	18fe0ff14b	lib/storage: tune loopsCount estimations in getMetricIDsForTagFilterSlow ... The adjusted estmations give up to 2x lower median response times on 200qps /api/v1/query_range workload	2021-03-07 21:12:35 +02:00
Aliaksandr Valialkin	4de4da1e2a	lib/storage: typo fix: umarshal -> unmarshal	2021-03-02 20:47:59 +02:00
Aliaksandr Valialkin	2c44178645	lib/storage: consistency renaming: durationsPerDateTagFilterCache -> loopsPerDateTagFilterCache	2021-02-23 15:47:19 +02:00
faceair	15d61c4879	lib/storage: correct tagfilter match cost (#1079)	2021-02-22 21:46:56 +02:00
Aliaksandr Valialkin	636c55b526	lib/mergeset: reduce memory usage for inmemoryBlock by using more compact items representation ... This also should reduce CPU time spent by GC, since inmemoryBlock.items don't have pointers now, so GC doesn't need visiting them.	2021-02-21 22:06:47 +02:00
Aliaksandr Valialkin	388cdb1980	lib/storage: do not re-calculate stats for heavy tag filters ... This should reduce the number of slow queries when stats for heavy tag filters was recalculated.	2021-02-21 21:39:01 +02:00
Aliaksandr Valialkin	48656dcc38	lib/{mergeset,storage}: allow merging smaller number of small parts ... While this may increase CPU and disk IO usage needed for background merge, this also recudes CPU usage during queries in production. This is because such queries tend to read recently added data and it is better to have lower number of parts for such data in order to reduce CPU usage. This partially reverts ebf8da3730	2021-02-21 21:28:36 +02:00
Aliaksandr Valialkin	cb311bb156	lib/{mergeset,storage}: do not use pools for indexBlock and inmemoryBlock during their caching, since this results in higher memory usage in production without any performance gains	2021-02-21 21:18:59 +02:00
Aliaksandr Valialkin	f9084611bd	lib/storage: use composite index for a query with a name filter and negative filters	2021-02-18 18:57:23 +02:00
Aliaksandr Valialkin	a537c4f602	lib/storage: properly handle queries containing a filter on metric name plus any number of negative filters and zero non-negative filters ... Example: `node_cpu_seconds_total{mode!="idle"}`	2021-02-18 18:46:36 +02:00
Aliaksandr Valialkin	e540c02014	lib/storage: prevent from running identical heavy tag filters in concurrent queries when measuring the number of loops for such tag filter. ... This should reduce CPU usage spikes when measuring the number of loops needed for heavy tag filters	2021-02-18 13:58:18 +02:00
Aliaksandr Valialkin	711f8a5b8d	lib/storage: sort tag filters by the number of loops they need for the execution ... This metric should work better than the filter execution duration, since it cannot be distorted by concurrently running queries.	2021-02-18 12:47:38 +02:00
Aliaksandr Valialkin	ce99b48a9a	Revert "lib/mergeset: tune lifetime for entries inside block caches" ... This reverts commit 458c89324d. Production testing revealed zero improvements for memory usage with reduced lifetime for entries in block caches.	2021-02-17 20:42:21 +02:00
Aliaksandr Valialkin	939d5ffc2b	lib/storage: move composite filters to the top during sorting	2021-02-17 20:26:51 +02:00
Aliaksandr Valialkin	faad6f84a4	lib/storage: return back filter arg to getMetricIDsForTagFilter function ... The filter arg has been removed in the commit c7ee2fabb8 because it was preventing from caching the number of matching time series per each tf. Now the cache contains duration for tf execution, so the filter shouldn't break such caching.	2021-02-17 19:33:22 +02:00
Aliaksandr Valialkin	d4849561ef	app/vmstorage: export vm_composite_filter_success_conversions_total and vm_composite_filter_missing_conversions_total metrics	2021-02-17 19:13:38 +02:00
Aliaksandr Valialkin	33806264ec	lib/storage: revert ecf132933e, since negative filters require the same amount of work as non-negative filters	2021-02-17 18:55:04 +02:00
Aliaksandr Valialkin	63fc140624	lib/storage: tag filters sorting...	2021-02-17 17:55:29 +02:00
Aliaksandr Valialkin	74424b55ee	lib/storage: further tune tag filters sorting	2021-02-17 17:28:15 +02:00
Aliaksandr Valialkin	442fcfec5a	lib/storage: tune the logic for sorting tag filters according the their exeuction times	2021-02-17 15:00:08 +02:00
Aliaksandr Valialkin	4a07820048	lib/storage: make sure that nobody uses partitions when closing the table	2021-02-17 14:59:04 +02:00
Aliaksandr Valialkin	d61f7b7279	lib/storage: more tuning for tag filters sorting according the time they take	2021-02-16 21:22:23 +02:00
Aliaksandr Valialkin	458c89324d	lib/mergeset: tune lifetime for entries inside block caches ... This should reduce memory usage in general case without significant CPU usage increase	2021-02-16 18:11:51 +02:00
Aliaksandr Valialkin	ca191696fe	lib/storage: tune sorting for tag filters	2021-02-16 13:04:49 +02:00
Aliaksandr Valialkin	ecf132933e	lib/storage: increase match cost for negative tag filters, since they need to scan all the label pairs	2021-02-15 16:34:23 +02:00
Aliaksandr Valialkin	4e39bf148c	vendor: update github.com/VictoriaMetrics/metrics from v1.13.1 to v1.14.0 ... The new version switches from log-linear histograms to log-based histograms, which provide up to 3.6 times better accuracy.	2021-02-15 15:12:29 +02:00
Aliaksandr Valialkin	9f5ac603a7	lib/storage: reduce the minimum supported retention for inverted index from one month to one day	2021-02-15 15:12:29 +02:00
Aliaksandr Valialkin	71c417427c	lib/storage: sort tag filters by actual execution time instead of by the number of matching time series ... This should improve query speed for queries with regexp filters matching small number of time series on a label with big number of unique values.	2021-02-15 00:18:13 +02:00
Aliaksandr Valialkin	c727d2219b	lib/storage: properly hanle regexp tag filters with dots, which can be converted to full string match filters. ... For example `{label=~"foo\.bar"}` should be converted to `{label="foo.bar"}`. Previously it has was mistakenly conveted to `{label="foo\.bar"}` . This could result in missing time series for such tag filters.	2021-02-14 23:38:14 +02:00
Aliaksandr Valialkin	0e26b7168a	lib/storage: return back in-order applying of tag filters, since concurrently executing tag filters can result in CPU and RAM waste in common case	2021-02-10 22:41:04 +02:00
Aliaksandr Valialkin	b51c23dc5b	lib/storage: parallelize tag filters execution a bit ... This should reduce execution time when a query contains multiple tag filters and each such filter matches big number of time series.	2021-02-10 18:12:25 +02:00
Aliaksandr Valialkin	c7ee2fabb8	lib/storage: remove filter arg from getMetricIDsForDateTagFilter function ... The `filter` arg breaks the logic for sorting tag filters by the matching metrics, which may result in non-optimal performance during time series search.	2021-02-10 18:12:20 +02:00
Aliaksandr Valialkin	57cac289e0	lib/storage: fix inconsistencies in error logs	2021-02-10 18:12:16 +02:00
Aliaksandr Valialkin	5d5f0b0627	lib/storage: load metadata before loading indexdb, since indexdb depends on the metadata	2021-02-10 17:55:40 +02:00
Aliaksandr Valialkin	cdecf83ce5	app/vmstorage: export vm_composite_index_min_timestamp metric	2021-02-10 17:14:08 +02:00
Aliaksandr Valialkin	553016ea99	lib/storage: disable composite index usage when querying old data	2021-02-10 14:57:50 +02:00
Aliaksandr Valialkin	fcb7655d1e	lib/storage: fix metric name match for composite filter	2021-02-10 01:27:45 +02:00
Aliaksandr Valialkin	c7dccebaef	lib/storage: optimize search by label filters matching big number of time series	2021-02-10 00:44:54 +02:00
Aliaksandr Valialkin	6b4e6c229c	lib/storage: reduce lock contention in dateMetricIDCache when registering new time series for the current day ... This should help systems with multiple CPU cores	2021-02-10 00:01:13 +02:00
Aliaksandr Valialkin	d56390b925	optimize Storage.updatePerDateData()	2021-02-09 02:55:36 +02:00
Aliaksandr Valialkin	fda61e8e96	lib/storage: skip deduplication when creating inmemory data blocks ... The deduplication will be performed later during merging such blocks.	2021-02-09 02:25:32 +02:00
Aliaksandr Valialkin	a4140de9e6	lib/mergeset: unconditionally cache indexdb blocks ... Production workloads show that indexdb blocks must be cached unconditionally for reducing CPU usage. This shouldn't increase memory usage too much, since unused blocks are removed from the cache every two minutes.	2021-02-09 00:47:50 +02:00
Aliaksandr Valialkin	cb96a1865b	app/vmstorage: export missing vm_cache_size_bytes metrics for indexdb and data caches	2021-02-09 00:47:00 +02:00
Aliaksandr Valialkin	2242647a04	lib/storage: optimize data ingestion in the beginning of every hour ... Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1046	2021-02-08 12:01:12 +02:00
Aliaksandr Valialkin	83d3e582ab	lib/storage: check for prevHourMetricIDs cache before falling back to checking for (date, metricID) entries during data ingestion ... This should reduce possible CPU usage spikes at the beginning of every hour. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1046	2021-02-04 18:48:13 +02:00
Aliaksandr Valialkin	d16f22f3a1	app/vmselect,lib/storage: properly parse Graphite selectors with inner wildcards ... Example: foo{bar{x,yz},a[b-c],*de}	2021-02-03 20:14:22 +02:00
Aliaksandr Valialkin	a5a1b9bd66	lib/storage: fix a bug, which breaks searching by Graphite wildcard filters	2021-02-03 20:14:22 +02:00
Aliaksandr Valialkin	6123aa3e75	sort orSuffixes in tagFilter.InitFromGraphiteQuery for faster seeks	2021-02-03 20:14:22 +02:00
Aliaksandr Valialkin	157c02622b	app/vmselect: add ability to set Graphite-compatible filter via {__graphite__="foo.*.bar"} syntax	2021-02-03 01:21:54 +02:00
Aliaksandr Valialkin	31ec79eaf6	lib/storage: inline marshalTags function and remove the code for handling duplicate tags from here ... This is a follow-up commit after c8ea697db8	2021-01-12 15:13:30 +02:00
Aliaksandr Valialkin	c8ea697db8	lib/storage: de-duplicate tags in MetricName.sortTags ... Leave only the last tag among tags with duplicate keys. This is needed for reliable addition of extra_labels during data ingestion. See https://github.com/VictoriaMetrics/VictoriaMetrics/pull/1007 for details.	2021-01-12 15:03:42 +02:00
Aliaksandr Valialkin	9dcb18e03d	app/vmstorage: disable final merge by default, since it may result in high disk IO and CPU usage without measurable benefits such as increased query performance and reduced disk space usage	2021-01-08 00:16:05 +02:00
Aliaksandr Valialkin	490c69c64e	lib/storage: wait for pending transactions before closing and dropping the partition ... This deflakes `make test-full-386` test	2020-12-25 11:45:53 +02:00
Aliaksandr Valialkin	cab7e936a3	lib/storage: physically remove stale parts ... Previously they were removed from partition struct, but the corresponding directories weren't removed. This is a follow-up for 46dba00756	2020-12-24 16:51:36 +02:00
Aliaksandr Valialkin	9e4ed5e591	lib/storage: do not remove parts outside the configured retention if they are currently merged ... These parts are automatically removed after the merge is complete.	2020-12-24 08:51:28 +02:00
Aliaksandr Valialkin	46dba00756	lib/storage: remove stale parts as soon as they go outside the configured retention ... Previously such parts could remain undeleted for long durations until they are merged with other parts. This should help for `-retentionPeriod` values smaller than one month.	2020-12-22 19:54:31 +02:00
Aliaksandr Valialkin	d65c03c004	lib/storage: properly determine max rows for output part when merging small parts	2020-12-18 23:14:38 +02:00
Aliaksandr Valialkin	ebf8da3730	lib/{storage,mergeset}: tune background merge process in order to reduce CPU usage and disk IO usage	2020-12-18 20:01:08 +02:00
Aliaksandr Valialkin	4146fc4668	all: properly handle CPU limits set on the host system/container ... This can reduce memory usage on systems with enabled CPU limits. Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/946	2020-12-08 21:07:29 +02:00
Aliaksandr Valialkin	357f886f97	Revert "lib/storage: add missing (AccountID, ProjectID) in MetricName.String() test" ... This reverts commit f3e80eb70e493620e42a0cc22a62c9af75076c77, since it isn't needed for single-node version of VictoriaMetrics	2020-11-29 01:27:25 +02:00
Aliaksandr Valialkin	ace969d595	lib/storage: add missing (AccountID, ProjectID) in MetricName.String() test	2020-11-29 01:26:04 +02:00
Aliaksandr Valialkin	8a057e705a	lib/storage: log metric name plus all its labels when the metric timestamp is outside the configured retention ... This should simplify debugging when the source of the metric with unexpected timestamp must be found.	2020-11-25 14:41:37 +02:00
Aliaksandr Valialkin	b65236530c	lib/storage: typo fix in error message: allowd->allowed	2020-11-25 14:15:42 +02:00
Aliaksandr Valialkin	78d2715d04	all: spelling fix: superflouos->superfluous. This is a follow-up for 0acdab3ab9	2020-11-24 12:42:22 +02:00
Aliaksandr Valialkin	f765985947	lib/fs: replace fs.OpenReaderAt with fs.MustOpenReaderAt ... All the callers for fs.OpenReaderAt expect that the file will be opened. So it is better to log fatal error inside fs.MustOpenReaderAt instead of leaving this to the caller.	2020-11-23 09:57:21 +02:00
Aliaksandr Valialkin	266788be14	app/vmselect: use storage.NewSearchQuery() instead of constructing storage.SearchQuery in-place ... This should prevent from bugs when AccountID and ProjectID aren't set in storage.SearchQuery.	2020-11-16 18:24:00 +02:00
Aliaksandr Valialkin	0208d8c103	lib/storage: add a test for Storage.SearchMetricNames	2020-11-16 13:15:16 +02:00
Aliaksandr Valialkin	465923b181	app/vmselect/graphite: add /tags/findSeries handler from Graphite Tags API ... See https://graphite.readthedocs.io/en/stable/tags.html#exploring-tags	2020-11-16 12:53:13 +02:00
Aliaksandr Valialkin	48d033a198	app/vminsert: add /tags/tagSeries and /tags/tagMultiSeries handlers from Graphite Tags API ... See https://graphite.readthedocs.io/en/stable/tags.html#adding-series-to-the-tagdb	2020-11-16 02:39:58 +02:00
Aliaksandr Valialkin	4aaee33860	lib/storage: do not show artifically created label for reverse Graphite labels at /api/v1/labels page	2020-11-16 00:44:35 +02:00
immerrr again	51c529a2b6	app/vmstorage: add "/internal/force_flush" endpoint (#893)	2020-11-11 14:40:27 +02:00
Aliaksandr Valialkin	368b69b4c4	app/vmselect: properly handle errors in GetLabelsOnTimeRange and GetLabelValuesOnTimeRange	2020-11-05 01:38:38 +02:00
Aliaksandr Valialkin	1cb78ba1a0	lib/storage: remove data race when updating rowsDeleted	2020-11-05 01:12:21 +02:00
Aliaksandr Valialkin	b378cd6ed8	app/vmselect: optimize querying for /api/v1/labels and /api/v1/label/<name>/values when start and end args are set	2020-11-05 01:01:33 +02:00
Aliaksandr Valialkin	caeb74f068	app/vmselect: reduce memory usage when query touches big number of time series	2020-11-04 17:04:04 +02:00
Aliaksandr Valialkin	ae91a6883c	lib/{storage,mergeset}: clean cached index blocks and inmemory blocks more aggressively ... Previously such blocks were cleaned after they weren't accessed during 10 minutes. Now they are cleaned after one minute of missing access. This should reduce memory usage in general case.	2020-11-04 17:04:04 +02:00
Aliaksandr Valialkin	f3f62ab04e	lib/storage: do not report about the need of free disk space if parts cannot be merged due to too big write amplification	2020-11-03 15:32:02 +02:00
Aliaksandr Valialkin	c87fb9191e	lib/storage: remove unneeded fmt.Sprintf	2020-11-03 14:20:31 +02:00
Aliaksandr Valialkin	fe289331dd	lib/storage: remove obsolete code	2020-11-02 19:11:59 +02:00
Aliaksandr Valialkin	29e4e7f422	lib/storage: drop more samples outside the given retention during background merge ... Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/17	2020-11-01 23:35:06 +02:00
Aliaksandr Valialkin	d12c4914f0	lib/storage: properly handle the case when key="__name__" is passed to MetricName.AddTag*	2020-11-01 23:35:06 +02:00
Aliaksandr Valialkin	64e2d66014	lib/storage: code cleanup after 5bfd4e6218	2020-11-01 23:35:06 +02:00
Aliaksandr Valialkin	5bfd4e6218	app/vmstorage: support for -retentionPeriod smaller than one month ... Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/173 Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/17	2020-10-20 14:31:44 +03:00
Aliaksandr Valialkin	01987f8c77	lib/storage: small code adjustements after d2960a20e0 ... Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/781	2020-10-17 01:16:54 +03:00
faceair	d2960a20e0	evaluate the execution cost of all tag filters (#824) ... * evaluate the execution cost of all tag filters * fix suffixes typo	2020-10-17 00:46:55 +03:00
Aliaksandr Valialkin	68f0e00761	app/vmstorage: add vm_rows_added_to_storage_total metric, which shows the total number of rows added to storage since app start	2020-10-09 13:35:48 +03:00
Aliaksandr Valialkin	af90b3121c	app/vmstorage: add -finalMergeDelay command-line flag for configuring the delay before final merge for per-month partitions after no new data is ingested to it	2020-10-07 17:35:44 +03:00
Aliaksandr Valialkin	764dc2499f	lib/storage: code cleanup after 10f2eedee0 ... Remove the code that uses metricIDs caches for the current and the previous hour during metricIDs search, since this code became unused after implementing per-day inverted index almost a year ago. While at it, fix a bug, which could prevent from finding time series with names containing dots (aka Graphite-like names such as `foo.bar.baz`).	2020-10-01 19:06:23 +03:00
Aliaksandr Valialkin	10f2eedee0	lib/storage: imrpove cache effectiveness for time series ids matching the given filters ... Previously the maximum cache lifetime has been limited by 10 seconds. Now it is extended up to a day. This should reduce CPU usage in the following cases: * when querying recently added data with small churn rate for time series * when querying historical data	2020-10-01 14:38:25 +03:00
Aliaksandr Valialkin	bec9b31b81	lib/storage: allow set values higher than 1 for vm_merge_need_free_disk_space if there are multiple partitions with deferred merges due to disk space shortage	2020-09-29 22:51:43 +03:00
Aliaksandr Valialkin	a9db81c4ab	app/vmstorage: add metrics for determining whether background merges need additional disk space to complete ... These metrics are: * vm_small_merge_need_free_disk_space * vm_big_merge_need_free_disk_space Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/686	2020-09-29 21:48:33 +03:00
Aliaksandr Valialkin	1659135752	lib/storage: fix tests for 32-bit arches such as GOARCH=386 and GOARCH=arm	2020-09-29 13:10:22 +03:00
Aliaksandr Valialkin	38789e4aa0	lib/storage: fix 32-bit builds for GOARH=386 or GOARCH=arm	2020-09-29 12:40:35 +03:00
Aliaksandr Valialkin	95688cbfc5	all: add native format for data export and import ... The data can be exported via [/api/v1/export/native](https://victoriametrics.github.io/#how-to-export-data-in-native-format) handler and imported via [/api/v1/import/native](https://victoriametrics.github.io/#how-to-import-data-in-native-format) handler.	2020-09-27 19:54:07 +03:00
Aliaksandr Valialkin	82973f8ae7	Revert "lib/storage: remove unused fetchData arg from BlockRef.MustReadBlock" ... This reverts commit bab6a15ae0. Reason for revert: the `fetchData` arg is used in cluster branch. Leaving this arg in master branch makes smaller the diff with cluster branch.	2020-09-24 22:44:23 +03:00
Aliaksandr Valialkin	bab6a15ae0	lib/storage: remove unused fetchData arg from BlockRef.MustReadBlock ... This arg became unused after 23bdc1f107	2020-09-24 20:48:40 +03:00
Aliaksandr Valialkin	24ca30bf66	lib/storage: correctly use maxBlockSize in various checks ... Previously `maxBlockSize` has been multiplied by 8 in certain checks. This is unnecessary.	2020-09-24 18:12:56 +03:00
Aliaksandr Valialkin	a69234ed18	lib/storage: code prettifying after be5e1222f3 ... Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/781	2020-09-22 00:36:45 +03:00
faceair	be5e1222f3	add filter to getMetricIDs (#783) ... * add getMetricIDs filter * check nil filter before use	2020-09-22 00:33:43 +03:00
Aliaksandr Valialkin	9739283dad	lib/storage: reduce CPU load for idle VictoriaMetrics by reducing the frequency for the need for background merges	2020-09-21 15:54:11 +03:00
Aliaksandr Valialkin	26115891db	lib/decimal: properly store Inf values ... Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/752	2020-09-18 19:07:07 +03:00
Aliaksandr Valialkin	1f33dd717f	lib/storage: add /internal/force_merge handler for running forced compactions on historical per-month partitions ... This may be useful for freeing up storage space after time series deletion. See https://victoriametrics.github.io/#force-merge for more details. Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/686	2020-09-17 12:20:40 +03:00
Aliaksandr Valialkin	8beb0da6ad	lib/{mergeset,storage}: compare errors with errors.Is()	2020-09-17 03:03:02 +03:00
Aliaksandr Valialkin	067d7c1ea1	lib/{mergeset,storage}: code prettifying	2020-09-17 02:06:31 +03:00
Aliaksandr Valialkin	020bd8685e	lib/storage: removed duplicate checks for empty parts during merge - another check is in the beginning of mergeParts functions	2020-09-17 01:49:03 +03:00
Aliaksandr Valialkin	5a90a92378	lib/storage: do not store inf values, since they may lead to significant precision loss for previously stored values ... Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/752	2020-09-11 14:44:53 +03:00
Aliaksandr Valialkin	f6bc608e86	app/vmselect: initial implementation of Graphite Metrics API ... See https://graphite-api.readthedocs.io/en/latest/api.html#the-metrics-api	2020-09-11 00:30:01 +03:00
Aliaksandr Valialkin	9d8fdff6c5	lib/storage: reuse timestamp blocks for adjancent metric blocks with identical timestamps ... This should reduce disk space usage when scraping targets containing metrics with identical names such as `node_cpu_seconds_total`, histograms, quantiles, etc. Expose `vm_timestamps_blocks_merged_total` and `vm_timestamps_bytes_saved_total` metrics for monitoring the effectiveness of timestamp blocks merging.	2020-09-09 23:59:32 +03:00
Aliaksandr Valialkin	8d9eb5f808	lib/storage: mention time range used in the query that led to error message ... This should improve detecting slow queries with too big time ranges	2020-08-10 13:46:36 +03:00
Aliaksandr Valialkin	582c74cd93	lib/storage: mention tag filters used in the query that led to error message ... This should improve detecting invalid or heavy queries that lead to errors.	2020-08-10 13:36:49 +03:00
Aliaksandr Valialkin	f3d33e23c9	app/vmstorage: improve error logging when the request times out	2020-08-10 13:23:26 +03:00
Aliaksandr Valialkin	84fd8af6d3	lib/storage: slow down concurrent searches when the number of concurrent inserts reaches the limit ... This should improve data ingestion performance when heavy searches are executed See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/648 See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/618	2020-08-07 08:49:40 +03:00
Aliaksandr Valialkin	9043a509a3	lib/storage: properly check timeouts and pace limits ... Previously they were checked on every iteration for small number of iterations	2020-08-07 08:40:37 +03:00
Aliaksandr Valialkin	bc8381613d	app/vmselect: reduce memory allocations by pre-allocatin memory for time series map and for a list of time series names	2020-08-06 19:17:58 +03:00
Aliaksandr Valialkin	8e44fba76d	lib/storage: reduce the frequency (and overhead) for timeout and pace limiter checks by 4x	2020-08-06 18:45:55 +03:00
Aliaksandr Valialkin	ad730d8a17	lib/storage: optimize prefetching metric names for the given metricIDs	2020-08-06 16:53:10 +03:00
Aliaksandr Valialkin	8f16388428	lib/storage: limit the number of concurrent calls to storage.searchTSIDs to GOMAXPROCS*2 ... This should limit the maximum memory usage and reduce CPU trashing on vmstorage when multiple heavy queries are executed. Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/648	2020-08-05 18:30:07 +03:00
Aliaksandr Valialkin	5e71fab8a6	lib/storage: reduce the maximum number of concurrent merge workers to GOMAXPROCS/2 ... Previously the limit has been raised to GOMAXPROCS, but it has been appeared that this increases query latencies since more CPUs are busy with merges. While at it, substitute `*MergeConcurrencyLimitCh` channels with simple integer limits.	2020-07-31 17:46:56 +03:00
Aliaksandr Valialkin	e7959094f6	lib/storage: remove prioritizing of merging small parts over merging big parts, since it doesn't work as expected ... The prioritizing could lead to big merge starvation, which could end up in too big number of parts that must be merged into big parts. Multiple big merges may be initiated after the migration from v1.39.0 or v1.39.1. It is OK - these merges should be finished soon, which should return CPU and disk IO usage to normal levels. Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/648 Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/618	2020-07-30 19:57:27 +03:00
Aliaksandr Valialkin	922d9aadf2	lib/storage: properly update vm_slow_row_inserts_total metric when importing multiple data points per time series at once ... Previously the `vm_slow_row_inserts_total` metric may be incremented multiple times for different data points per a single time series, while only a single increment is needed when inserting the first data point for this time series.	2020-07-30 16:17:24 +03:00
Sasasu	5b81bdde39	lib/storage: metaindexRow use memroy more efficiently (#655) ... due to memory align the metaindexRow structure use 64-byte pre object. this commit changes the order of field, make metaindexRow use 56-byte pre object. Signed-off-by: Sasasu <su@sasasu.me>	2020-07-27 19:02:53 +03:00
Aliaksandr Valialkin	54ef2d8112	lib/storage: slightly reduce code difference between single-node and cluster versions	2020-07-24 00:31:16 +03:00
Aliaksandr Valialkin	039c9d2441	lib/storage: respect -search.maxQueryDuration when searching for time series in inverted index ... Previously the time spent on inverted index search could exceed the configured `-search.maxQueryDuration`. This commit stops searching in inverted index on query timeout.	2020-07-23 21:21:42 +03:00
Aliaksandr Valialkin	2a45871823	lib/storage: add more fine-grained pace limiting for search	2020-07-23 19:26:08 +03:00
Aliaksandr Valialkin	6f05c4d351	lib/storage: improve prioritizing of data ingestion over querying ... Prioritize also small merges over big merges. Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/291 Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/648	2020-07-23 13:23:36 +03:00
Aliaksandr Valialkin	61c611f5ad	lib/storage: properly calculate global metrics in UpdateStats()	2020-07-23 00:35:15 +03:00
Aliaksandr Valialkin	228d137936	lib/storage: reorder mergeBlockStreams() args in order to make them more consistent	2020-07-22 21:58:10 +03:00
Aliaksandr Valialkin	e4303d3d21	lib/storage: prevent possible race condition when all the goroutines exit Storage.AddRows, before goroutines other goroutines are blocked on searchTSIDsCond inside Storage.searchTSIDs ... This condition may occur after the following sequence of events: 1) A goroutine enters the loop body when len(addRowsConcurrencyCh) == cap(addRowsConcurrencyCh) inside Storage.searchTSIDs. 2) All the goroutines return from Storage.AddRows. 3) The goroutine from step 1 blocks on searchTSIDsCond.Wait() inside the loop body. The goroutine remains blocked until the next call to Storage.AddRows, which calls searchTSIDsCond.Signal(). This may take indefinite time.	2020-07-22 21:52:34 +03:00
Aliaksandr Valialkin	d3442b40b2	lib/uint64set: optimize adding items to the set via Set.AddMulti	2020-07-21 20:56:59 +03:00
Aliaksandr Valialkin	e1107fec10	lib/storage: reset MetricName->TSID cache after marking metricIDs as deleted ... This is a follow-up commit after 12b16077c4 , which didn't reset the `tsidCache` in all the required places. This could result in indefinite errors like: missing metricName by metricID ...; this could be the case after unclean shutdown; deleting the metricID, so it could be re-created next time Fix this by resetting the cache inside deleteMetricIDs function.	2020-07-14 14:06:32 +03:00
Aliaksandr Valialkin	cb92113632	lib/storage: limit the maximum concurrency for data ingestion to GOMAXPROCS ... Previously the concurrency has been limited to GOMAXPROCS*2. This had little sense, since every call to Storage.AddRows is bound to CPU, so the maximum ingestion bandwidth is achieved when the number of concurrent calls to Storage.AddRows is limited to the number of CPUs, i.e. to GOMAXPROCS.	2020-07-08 17:32:18 +03:00
Aliaksandr Valialkin	32b9fb58b8	lib/storage: clarify out of retention period error message by mentioning -retentionPeriod command-line flag	2020-07-08 13:54:26 +03:00
Aliaksandr Valialkin	12b16077c4	lib/storage: reset MetricName->TSID cache after deleting time series ... This should prevent from adding new data points to deleted time series without the need to check for the deleted time series. This improves ingestion performance a bit when the `deleted time series ids` aka `dmis` set contains big number of time series. Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/596 Based on the idea from @n4mine at https://github.com/VictoriaMetrics/VictoriaMetrics/pull/604	2020-07-06 22:01:08 +03:00
Aliaksandr Valialkin	6daa5f7500	lib/storage: prioritize data ingestion over heavy queries ... Heavy queries could result in the lack of CPU resources for processing the current data ingestion stream. Prevent this by delaying queries' execution until free resources are available for data ingestion. Expose `vm_search_delays_total` metric, which may be used in for alerting when there is no enough CPU resources for data ingestion and/or for executing heavy queries. Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/291	2020-07-05 19:42:05 +03:00
Aliaksandr Valialkin	0b2086b7a5	app/vminsert: prevent from adding and/or selecting labels with empty values ... Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/600	2020-07-02 23:14:11 +03:00
Aliaksandr Valialkin	d5dddb0953	all: use %w instead of %s for wrapping errors in fmt.Errorf ... This will simplify examining the returned errors such as httpserver.ErrorWithStatusCode . See https://blog.golang.org/go1.13-errors for details.	2020-06-30 23:05:11 +03:00
Aliaksandr Valialkin	7532dbcdf5	app/vmselect/promql: properly override label values from group_left and group_right lists like Prometheus does ... Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/577	2020-06-21 16:33:01 +03:00
Tristan Su	ac3700ed1e	lib/storage: set big/small merge concurrency (#568) ... fixed #567 Co-authored-by: Tristan Su <suqing.sq@alibaba-inc.com>	2020-06-19 01:25:48 +03:00
Aliaksandr Valialkin	b542e50680	app/vminsert: export metrics for determining ingested rows with dropped or truncated labels ... Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/565	2020-06-19 01:10:37 +03:00
Aliaksandr Valialkin	08495360b0	lib/storage: add key!=".+" filter additionally to negative filter matching empty value such as key!~"|foo" ... Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/546	2020-06-18 20:03:48 +03:00
Aliaksandr Valialkin	ae1cc0fc4b	lib/storage: properly match {tag!="|foo"} filters ... Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/546	2020-06-10 19:35:56 +03:00
Aliaksandr Valialkin	3d4008263f	lib/fs: optimize MustGetFreeSpace performance by caching the results for up to 2 seconds	2020-06-04 13:15:47 +03:00
Aliaksandr Valialkin	a7797dae09	lib/storage: fix Graphite wildcard matching, which has been broken in v1.36.0 ... v1.36.0 always returns empty responses for Graphite wildcards like the following {__name__=~"foo\\.[^.]*\\.bar\\.baz"} Temporary workaround for v1.36.0 is to add `[^.]*` to the end of the regexp.	2020-05-28 12:03:49 +03:00
Aliaksandr Valialkin	d186472081	lib/storage: improve search speed for time series matching Graphite whildcards such as foo.*.bar.baz ... Add index for reverse Graphite-like metric names with dots. Use this index during search for filters like `__name__=~"foo\\.[^.]*\\.bar\\.baz"` which end with non-empty suffix with dots, i.e. `.bar.baz` in this case. This change may "hide" historical time series during queries. The workaround is to add `[.]*` to the end of regexp label filter, i.e. "foo\\.[^.]*\\.bar\\.baz" should be substituted with "foo\\.[^.]*\\.bar\\.baz[.]*".	2020-05-27 21:45:52 +03:00
Aliaksandr Valialkin	b19ca3eb5f	lib/storage: do not increment vm_slow_metric_name_loads_total counter for metric_ids which shouldnt be prefetched, since this may mislead users	2020-05-16 10:21:17 +03:00
Aliaksandr Valialkin	82ffbcb9a6	app/vmstorage: add vm_slow_metric_name_loads_total metric, which could be used as an indicator when more RAM is needed for improving query performance	2020-05-15 14:11:45 +03:00
Aliaksandr Valialkin	82ccdfaa91	app/vmstorage: add vm_slow_row_inserts_total and vm_slow_per_day_index_inserts_total metrics for determining whether VictoriaMetrics required more RAM for the current number of active time series	2020-05-15 13:44:32 +03:00
Aliaksandr Valialkin	0eacea1de1	lib/{storage,mergeset}: further tuning of compression levels depending on block size ... This should improve performance for querying newly added data, since it can be unpacked faster.	2020-05-15 13:24:37 +03:00
Aliaksandr Valialkin	737d641920	lib/storage: wait for all the goroutines to finish in TestSearch in order to prevent racy behavior on test finish	2020-05-15 13:24:37 +03:00
Aliaksandr Valialkin	4fc33163c4	lib/storage: optimize ingestion pefrormance for new time series	2020-05-15 13:24:37 +03:00
Aliaksandr Valialkin	8b32e7c3a0	lib/storage: reduce indentation in Storage.add	2020-05-15 13:24:37 +03:00
Aliaksandr Valialkin	1573ececb2	lib/storage: return the first error instead of the last error, since the first error usually points to the root cause	2020-05-15 13:24:37 +03:00
Aliaksandr Valialkin	0afd48d2ee	lib: extract common code for returning fast unix timestamp into lib/fasttime	2020-05-14 23:02:07 +03:00
Aliaksandr Valialkin	42866fa754	lib/{storage,mergeset}: return dst on error from unmarshalBlockHeaders, so it could be reused	2020-05-14 15:32:07 +03:00
Aliaksandr Valialkin	827a3a7866	lib/storage: document that getnerateUniqueMetricID should return dense ids	2020-05-14 14:08:45 +03:00
Aliaksandr Valialkin	606585f7be	lib/{storage,mergeset}: cleanup: remove unused partSearch.indexBlockReuse	2020-05-14 14:03:03 +03:00
Aliaksandr Valialkin	4fe67504f9	lib/storage: optimize label matching for regexp ending with literal suffix ... For example, `{label=~"foo.*bar.+baz"}` contains literal suffix `baz`, so it should work faster now.	2020-05-13 11:47:07 +03:00
Aliaksandr Valialkin	3232605524	lib/storage: properly initialize part struct before trying to close it on error ... This should prevent from nil pointer dereference bug at https://github.com/VictoriaMetrics/VictoriaMetrics/issues/468 .	2020-05-12 14:54:31 +03:00
Aliaksandr Valialkin	dbd0c552d5	lib/storage: gradually pre-populate per-day inverted index for the next day ... This should prevent from CPU usage spikes at 00:00 UTC every day when inverted index for new day must be quickly created for all the active time series. Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/430	2020-05-12 12:13:05 +03:00
Aliaksandr Valialkin	cc00a2c453	lib/storage: typo fixes in error messages: or -> of	2020-05-12 12:12:42 +03:00
Aliaksandr Valialkin	ce2107bc52	lib/storage: speed up matching for common regexps in label filters ... The following regexps have been optimized: * 'foo.+bar' * 'foo.+bar.+baz' This should improve performance for matching Graphite-like metrics.	2020-05-11 22:40:55 +03:00
Aliaksandr Valialkin	12a1a71cc1	lib/storage: add a benchmark for Graphite-like regexps for metric names	2020-05-11 22:37:32 +03:00
Aliaksandr Valialkin	83aca79137	lib/storage: recover when metricID->metricName entry is missing in the inverted index after unclean shutdown ... Newly added index entries can be missing after unclean shutdown, since they didn't flush to persistent storage yet. Log about this and delete the corresponding metricID, so it could be re-created next time.	2020-04-28 12:00:33 +03:00
Aliaksandr Valialkin	b4afe562c1	lib/storage: postpone reading data from blocks during search ... This eliminates the need for storing block data into temporary files on a single-node VictoriaMetrics during heavy queries, which touch big number of time series over long time ranges. This improves single-node VM performance on heavy queries by up to 2x.	2020-04-27 11:45:24 +03:00
kreedom	fb967ae6c8	happy fmt	2020-04-26 14:16:32 +03:00
Aliaksandr Valialkin	d7c1ff8b0c	lib/storage: improve deduplication algorithm ... Now it leaves only the first data point on each `-dedup.minScrapeInterval` interval. Previously it may leave two data points on the interval. This could lead to unexpected results for `histogram_quantile(phi, sum(rate(buckets)) by (le))` query.	2020-04-26 13:10:02 +03:00
Aliaksandr Valialkin	491b31b369	lib/storage: postpone label filters matching too many time series instead of giving up with error ... This should reduce the frequency of the following errors: cannot find tag filter matching less than N time series; either increase -search.maxUniqueTimeseries or use more specific tag filters more than N time series found on the time range [...]; either increase -search.maxUniqueTimeseries or shrink the time range	2020-04-24 21:13:50 +03:00
Aliaksandr Valialkin	364db13c9c	app/vmselect: add /api/v1/status/tsdb page with useful stats for locating root cause for high cardinality issues ... See https://prometheus.io/docs/prometheus/latest/querying/api/#tsdb-stats Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/425 Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/268	2020-04-22 22:03:43 +03:00
Aliaksandr Valialkin	c1de3f67b4	lib/storage: skip metricID if the corresponding metricID->metricName is missing in inverted index during search ... This case is possible when the corresponding metricID->metricName entry didn't propagate to inverted index yet. This should fix the following error: error when searching tsids for tfss [...]: cannot find metricName by metricID 1582417212213420669: EOF	2020-04-15 00:06:43 +03:00
Aliaksandr Valialkin	4de6c6bbf0	lib/storage: disable deduplication after dedup tests are complete ... The rest of tests expect that the de-duplication is disabled.	2020-04-10 17:28:31 +03:00
Aliaksandr Valialkin	ded0c0d3c7	lib/storage: correctly handle -dedup.minScrapeInterval values smaller than 8ms ... Such small values may be used for removing samples with duplicate timestamps. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/409 for details.	2020-04-10 16:36:41 +03:00
Aliaksandr Valialkin	7d73623c69	lib/{storage,mergeset}: make sure that requests and misses cache counters never go down	2020-04-10 14:45:01 +03:00
Aliaksandr Valialkin	e0d0348f36	lib/storage: add missing reset for tagFilter.matchesEmptyValue on tagFilter.Init	2020-04-01 17:42:44 +03:00
Aliaksandr Valialkin	c4acd20d2a	lib/storage: remove duplicate data points on 7/8*minScrapeInterval interval instead of 1/2*minScrapeInterval ... This should reduce storage usage and should improve deduplication accuracy	2020-04-01 15:48:48 +03:00
Aliaksandr Valialkin	b699c46046	lib/storage: handle errors returned from TagFilters.Add when cloning TagFilters with negative filter	2020-03-31 16:18:02 +03:00
Aliaksandr Valialkin	972713bd79	lib/storage: add fast path for the previous indexdb search if it doesn't contain per-day inverted index yet	2020-03-31 12:51:21 +03:00
Aliaksandr Valialkin	5d99ca6cfc	lib/storage: optimize per-day inverted index search for tag filters matching big number of time series ... - Sort tag filters in the ascending number of matching time series in order to apply the most specific filters first. - Fall back to metricName search for filters matching big number of time series (usually this are negative filters or regexp filters).	2020-03-31 00:48:35 +03:00
Aliaksandr Valialkin	318326c309	lib/storage: properly handle {label=~"foo|"} filters as Prometheus does ... Such filters must match all the time series with `label="foo"` plus all the time series without `label` Previously only time series with `label="foo"` were matched. Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/395	2020-03-31 00:48:18 +03:00
Aliaksandr Valialkin	f3e0c55ea1	lib/storage: serialize snapshot creation process with mutex ... This guarantees that the snapshot contains all the recently added data from inmemory buffers when multiple concurrent calls to Storage.CreateSnapshot are performed.	2020-03-24 22:27:05 +02:00
Aliaksandr Valialkin	df91d2d91f	lib/storage: remove obsolete code	2020-03-13 22:48:17 +02:00
Aliaksandr Valialkin	18af31a4c2	all: properly split vm_deduplicated_samples_total among cluster components ... Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/345	2020-02-27 23:48:07 +02:00
Aliaksandr Valialkin	d21cb43e48	lib/storage: add vm_ prefix to deduplicated_samples_total metric to be conistent with other metrics	2020-02-21 19:33:59 +02:00
Aliaksandr Valialkin	ce15cecae4	lib/storage: typo fix	2020-02-16 15:53:44 +02:00
Aliaksandr Valialkin	32e153e834	lib/storage: prevent from clobbering nin-nil lastError in Storage.add	2020-02-16 15:51:26 +02:00
Aliaksandr Valialkin	eceaf13e5e	lib/{storage,mergeset}: use time.Ticker instead of time.Timer where appropriate ... It has been appeared that time.Timer was used in places where time.Ticker must be used instead. This could result in blocked goroutines as in the https://github.com/VictoriaMetrics/VictoriaMetrics/issues/316 .	2020-02-13 13:10:07 +02:00
Aliaksandr Valialkin	e210cd9da1	lib/storage: move -dedup.minScrapeInterval flag outside lib/storage, so it doesnt show up in vminsert in cluster version	2020-02-10 13:09:51 +02:00
Aliaksandr Valialkin	bd4698bb7a	lib/storage: do not deduplicate blocks with less than 32 samples during merge ... This should improve deduplication accuracy for blocks with higher number of samples.	2020-02-04 18:41:54 +02:00
Aliaksandr Valialkin	42864bb52f	all: do not clash flag description with back-quoted flag types ... See https://golang.org/pkg/flag/#PrintDefaults for more details.	2020-02-04 15:46:52 +02:00
Aliaksandr Valialkin	c3d86eef96	all: add -dedup.minScrapeInterval command-line flag for data de-duplication ... Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/86 Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/278	2020-01-31 01:16:57 +02:00
Aliaksandr Valialkin	2152f6f0cd	lib/storage: re-use indexSearch inside Storage.prefetchMetricNames	2020-01-31 01:16:53 +02:00
Aliaksandr Valialkin	ad8af629bb	all: rename ReadAt* to MustReadAt* in order to dont clash with io.ReaderAt	2020-01-30 15:08:58 +02:00
Aliaksandr Valialkin	d68546aa4a	lib/storage: pre-fetch metricNames for the found metricIDs in Search.Init ... This should speed up Search.NextMetricBlock loop for big number of found time series.	2020-01-30 15:08:51 +02:00
Aliaksandr Valialkin	680080887d	all: consistently log durations in seconds with millisecond precision ... This should improve logs readability	2020-01-22 18:28:27 +02:00
Aliaksandr Valialkin	6665f10e7b	lib/{mergeset,storage}: properly update lastAccessTime in index and data block cache entries	2020-01-20 14:59:47 +02:00
Aliaksandr Valialkin	3748fb24b6	lib/storage: skip recovering timestamps order for lossless compression (PrecisionBits=64)	2020-01-18 00:09:33 +02:00
Aliaksandr Valialkin	f9289b804a	lib/storage: reduce memory allocations when merging metricID sets	2020-01-17 22:10:44 +02:00
Aliaksandr Valialkin	605d588ba6	lib/uint64set: reduce memory usage in Union, Intersect and Subtract methods ... Iterate items with newly added Set.ForEach method instead of allocating `[]uint64` slice for all the items before the iteration.	2020-01-15 12:12:49 +02:00
Aliaksandr Valialkin	893b62c682	lib/{mergeset,storage}: fix uint64 counters alignment for 32-bit architectures (GOARCH=386, GOARCH=arm)	2020-01-14 22:47:04 +02:00
Aliaksandr Valialkin	7830c10eb2	lib/{storage,mergeset}: gradually remove stale entries from block cache and index caches ... This should reduce memory usage in the long run when old blocks and indexes aren't accessed anymore.	2020-01-14 21:38:44 +02:00
Aliaksandr Valialkin	fc71602039	lib/storage: limit maxRaRowsPerPartition by 500K for any number of rawRowsShardsPerPartition ... This should reduce write amplification for high ingestion rate on multi-CPU systems	2020-01-04 23:57:31 +02:00
Aliaksandr Valialkin	1825893eef	lib/storage: scale ingestion performance by sharding rawRows on systems with more than 8 CPU cores	2019-12-19 18:18:29 +02:00
Aliaksandr Valialkin	97f70ccda7	lib/storage: optimize bulk import performance when multiple data points are inserted for the same time series ... This should speed up `/api/v1/import` and make it more scalable on multi-core systems.	2019-12-19 18:18:29 +02:00
Aliaksandr Valialkin	0ed9258545	lib/{mergeset,storage}: log info message when both source and destination part paths from txn are missing during startup ... This is expected condition after unclean shutdown (OOM, hard reset, `kill -9`) on NFS disk.	2019-12-09 15:44:53 +02:00
Aliaksandr Valialkin	72345eb5bd	lib/{mergeset,storage}: make sure pending transaction deletions are finished before and after runTransactions call. ... `runTransactions` call issues async deletions for transaction files. The previously issued transaction deletions can race with the next call to `runTransactions`. Prevent this by waiting until all the pending transaction deletions are funished in the beginning of `runTransactions`. Also make sure that all the pending transaction deletions are finished before returning from `runTransactions`.	2019-12-04 21:40:30 +02:00
Aliaksandr Valialkin	a247236f61	lib/storage: fall back to global inverted index if a filter match too many time series in per-day index ... Previously this resulted to error message. The query may succeed via search in global index.	2019-12-03 14:48:31 +02:00
Aliaksandr Valialkin	54741ee578	lib/storage: fix printing tag filters in TagFilters.String	2019-12-03 14:25:13 +02:00
Aliaksandr Valialkin	efbc83a13e	lib/storage: print __name__ instead of empty string in user-visible tag filters	2019-12-03 14:18:28 +02:00
Aliaksandr Valialkin	f52874dab4	lib/storage: optimize regexp filter search	2019-12-03 00:43:12 +02:00
Aliaksandr Valialkin	638a5cbb16	lib/{mergeset,storage}: remove transaction files only after the mentioned dirs are really removed ... This should fix the issue on NFS when incompletely removed dirs may be left after unclean shutdown (OOM, kill -9, hard reset, etc.), while the corresponding transaction files are already removed. Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/162	2019-12-02 21:36:31 +02:00
Aliaksandr Valialkin	20812008a7	lib/storage: remove metricID with missing metricID->metricName entry ... The metricID->metricName entry can be missing in the indexdb after unclean shutdown when only a part of entries for new time series is written into indexdb. Recover from such a situation by removing the broken metricID. New metricID will be automatically created for time series with the given metricName when new data point will arive to it.	2019-12-02 20:46:44 +02:00
Aliaksandr Valialkin	62a915f2b2	lib/storage: protect from time drift during indexdb rotation ... Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/248	2019-12-02 14:44:42 +02:00
Aliaksandr Valialkin	70b8191fab	lib/storage: generate more human-friendly result in TagFilters.String	2019-12-02 13:52:22 +02:00
Aliaksandr Valialkin	da98703748	app/vmselect/promql: optimize binary search over big number of samples during rollup calculations	2019-11-25 14:01:46 +02:00
Aliaksandr Valialkin	7a4635f853	all: remove the remaining mentions of cluster version	2019-11-21 23:18:22 +02:00
Aliaksandr Valialkin	f652c0f40f	lib/storage: move non-matching tag filters to the top at matchTagFilters ... This should reduce the amount of useless work needed for matching the next metricNames.	2019-11-21 21:35:13 +02:00
Aliaksandr Valialkin	b8cde6cce1	lib/storage: speed up time series search for queries with multiple filters ... Use optimized specialized binary search for uint64 metricIDs instead of generic sort.Search.	2019-11-21 18:43:17 +02:00
Aliaksandr Valialkin	5c1e4143e9	lib/storage: verify the number of returned metricIDs in BenchmarkHeadPostingForMatchers	2019-11-20 15:39:28 +02:00
Aliaksandr Valialkin	b6f22a62cb	lib/storage: increase the number of created time series in BenchmarkHeadPostingForMatchers in order to be on par with Promethues ... The previous commit was accidentally creating 10x smaller number of time series than Prometheus and this led to invalid benchmark results. The updated benchmark results: benchmark old ns/op new ns/op delta BenchmarkHeadPostingForMatchers/n="1" 272756688 6194893 -97.73% BenchmarkHeadPostingForMatchers/n="1",j="foo" 138132923 10781372 -92.19% BenchmarkHeadPostingForMatchers/j="foo",n="1" 134723762 10632834 -92.11% BenchmarkHeadPostingForMatchers/n="1",j!="foo" 195823953 10679975 -94.55% BenchmarkHeadPostingForMatchers/i=~".*" 7962582919 100118510 -98.74% BenchmarkHeadPostingForMatchers/i=~".+" 7589543864 154955671 -97.96% BenchmarkHeadPostingForMatchers/i=~"" 1142371741 258003769 -77.42% BenchmarkHeadPostingForMatchers/i!="" 9964150263 159783895 -98.40% BenchmarkHeadPostingForMatchers/n="1",i=~".*",j="foo" 216995884 10937895 -94.96% BenchmarkHeadPostingForMatchers/n="1",i=~".*",i!="2",j="foo" 202541348 10990027 -94.57% BenchmarkHeadPostingForMatchers/n="1",i!="" 486285711 87004349 -82.11% BenchmarkHeadPostingForMatchers/n="1",i!="",j="foo" 350776931 53342793 -84.79% BenchmarkHeadPostingForMatchers/n="1",i=~".+",j="foo" 380888565 54256156 -85.76% BenchmarkHeadPostingForMatchers/n="1",i=~"1.+",j="foo" 89500296 21823279 -75.62% BenchmarkHeadPostingForMatchers/n="1",i=~".+",i!="2",j="foo" 379529654 46671359 -87.70% BenchmarkHeadPostingForMatchers/n="1",i=~".+",i!~"2.*",j="foo" 424563825 53915842 -87.30% VictoriaMetrics uses 1GB of RAM during the benchmark (vs 3.5GB of RAM for Prometheus)	2019-11-18 19:50:58 +02:00
Aliaksandr Valialkin	8a0dfc6220	lib/storage: add BenchmarkHeadPostingForMatchers similar to the benchmark from Prometheus ... See the corresponding benchmark in Prometheus - 23c0299d85/tsdb/head_bench_test.go (L52) The benchmark allows performing apples-to-apples comparison of time series search in Prometheus and VictoriaMetrics. The following article - https://www.robustperception.io/evaluating-performance-and-correctness - contains incorrect numbers for VictoriaMetrics, since there wasn't this benchmark yet. Fix this. Benchmarks can be repeated with the following commands from Prometheus and VictoriaMetrics source code roots: - Prometheus: GOMAXPROCS=1 go test ./tsdb/ -run=111 -bench=BenchmarkHeadPostingForMatchers - VictoriaMetrics: GOMAXPROCS=1 go test ./lib/storage/ -run=111 -bench=BenchmarkHeadPostingForMatchers Benchmark results: benchmark old ns/op new ns/op delta BenchmarkHeadPostingForMatchers/n="1" 272756688 364977 -99.87% BenchmarkHeadPostingForMatchers/n="1",j="foo" 138132923 1181636 -99.14% BenchmarkHeadPostingForMatchers/j="foo",n="1" 134723762 1141578 -99.15% BenchmarkHeadPostingForMatchers/n="1",j!="foo" 195823953 1148056 -99.41% BenchmarkHeadPostingForMatchers/i=~".*" 7962582919 8716755 -99.89% BenchmarkHeadPostingForMatchers/i=~".+" 7589543864 12096587 -99.84% BenchmarkHeadPostingForMatchers/i=~"" 1142371741 16164560 -98.59% BenchmarkHeadPostingForMatchers/i!="" 9964150263 12230021 -99.88% BenchmarkHeadPostingForMatchers/n="1",i=~".*",j="foo" 216995884 1173476 -99.46% BenchmarkHeadPostingForMatchers/n="1",i=~".*",i!="2",j="foo" 202541348 1299743 -99.36% BenchmarkHeadPostingForMatchers/n="1",i!="" 486285711 11555193 -97.62% BenchmarkHeadPostingForMatchers/n="1",i!="",j="foo" 350776931 5607506 -98.40% BenchmarkHeadPostingForMatchers/n="1",i=~".+",j="foo" 380888565 6380335 -98.32% BenchmarkHeadPostingForMatchers/n="1",i=~"1.+",j="foo" 89500296 2078970 -97.68% BenchmarkHeadPostingForMatchers/n="1",i=~".+",i!="2",j="foo" 379529654 6561368 -98.27% BenchmarkHeadPostingForMatchers/n="1",i=~".+",i!~"2.*",j="foo" 424563825 6757132 -98.41% The first column (old) is for Prometheus, the second column (new) is for VictoriaMetrics. As you can see, VictoriaMetrics outperforms Prometheus by more than 100x in almost all the test cases of this benchmark. Prometheus was using 3.5GB of RAM during the benchmark, while VictoriaMetrics was using 400MB of RAM.	2019-11-18 18:45:06 +02:00
Aliaksandr Valialkin	2ab4cea5e5	lib/storage: always start using per-day inverted index on the next day after its creation ... The current day could miss entries for already stopped time series before enabling per-day index. This fixes the issue when queries return empty results during the first hour after upgrading to v1.29.*	2019-11-16 12:11:25 +02:00
Aliaksandr Valialkin	119dfd01bb	lib/storage: add vm_cache_size_bytes{type="storage/hour_metric_ids"} metric	2019-11-13 20:24:21 +02:00
Aliaksandr Valialkin	86a1cd700b	lib/storage: remove inmemory index for recent hour, since it uses too much memory ... Production workload shows that the index requires ~4Kb of RAM per active time series. This is too much for high number of active time series, so let's delete this index. Now the queries should fall back to the index for the current day instead of the index for the recent hour. The query performance for the current day index should be good enough given the 100M rows/sec scan speed per CPU core.	2019-11-13 17:58:07 +02:00
Aliaksandr Valialkin	33895d4a0f	lib/storage: add missing increment for recentHourInvertedIndexSearchCalls	2019-11-13 15:13:51 +02:00
Aliaksandr Valialkin	c57eb0ff83	lib/storage: add -disableRecentHourIndex flag for disabling inmemory index for recent hour ... This may be useful for saving RAM on high number of time series aka high cardinality	2019-11-13 15:02:51 +02:00
Aliaksandr Valialkin	e14ab14e54	lib/storage: verify marshaling for iidx.pendingMetricIDs in TestInmemoryInvertedIndexMarshalUnmarshal	2019-11-13 13:35:30 +02:00
Aliaksandr Valialkin	ca259864e2	lib/storage: return back inmemory inverted index for recent hour ... Issues fixed: - Slow startup times. Now the index is loaded from cache during start. - High memory usage related to superflouos index copies every 10 seconds.	2019-11-13 13:11:04 +02:00
Aliaksandr Valialkin	01bb3c06c7	lib/storage: remove inmemory inverted index for recent hours ... Production load with >10M active time series showed it could slow down VictoriaMetrics startup times and could eat all the memory leading to OOM. Remove inmemory inverted index for recent hours until thorough testing on production data shows it works OK.	2019-11-13 10:45:53 +02:00
Mike Poindexter	f3ad330635	Add test for invalid caching of tsids (#232) ... * Add test for invalid caching of tsids * Clean up error handling	2019-11-12 15:09:33 +02:00
Oleg Kovalov	b4f44befa3	fix misspelled words (#229)	2019-11-12 00:16:42 +02:00
Aliaksandr Valialkin	8e8f98f712	lib/storage: add tests for dateMetricIDCache	2019-11-11 13:21:57 +02:00
Aliaksandr Valialkin	c342f5e37e	lib/storage: eliminate data race when updating lastSyncTime in dateMetricIDCache.Has	2019-11-10 22:04:01 +02:00
Aliaksandr Valialkin	3956003dd0	lib/storage: reorganize the code in getStartDateForPerDayInvertedIndex according to golangci-lint	2019-11-10 00:38:59 +02:00
Aliaksandr Valialkin	ee7765b10d	lib/storage: implement per-day inverted index	2019-11-10 00:02:46 +02:00
Aliaksandr Valialkin	5810ba57c2	lib/storage: use specialized cache for (date, metricID) entries ... This improves ingestion performance.	2019-11-09 23:06:11 +02:00
Aliaksandr Valialkin	e573ef2126	lib/storage: remove unused code from getMetricIDsForTimeRange: it is expected that time range is always non-zero	2019-11-09 19:03:34 +02:00
Aliaksandr Valialkin	823fa085ef	lib/storage: properly set time range when deleting time series	2019-11-09 18:49:49 +02:00
Aliaksandr Valialkin	695c1dc5eb	lib/storage: obtain all the time series ids from (tag->metricIDs) rows instead of (metricID->TSID) rows, since this much faster	2019-11-09 18:04:33 +02:00
Aliaksandr Valialkin	cdbe848102	lib/storage: small code prettifying	2019-11-09 14:19:52 +02:00
Aliaksandr Valialkin	bb08bab263	lib/storage: inmemoryInvertedIndex prettifying	2019-11-09 14:19:41 +02:00
Aliaksandr Valialkin	6ad7fe8eeb	lib/storage: export vm_new_timeseries_created_total metric for determining time series churn rate	2019-11-08 21:21:07 +02:00
Aliaksandr Valialkin	9ea549ed24	lib/storage: sync with cluster changes	2019-11-08 21:21:07 +02:00
Aliaksandr Valialkin	d888b21657	lib/storage: add inmemory inverted index for the last hour ... It should improve performance for `last N hours` dashboards with update intervals smaller than 1 hour.	2019-11-08 21:21:07 +02:00
Aliaksandr Valialkin	543dc8d337	lib/storage: populate partition names from both small and big directories ... Certain partition directories may be missing after restoring from backups if they had no data. Re-create such directories on start.	2019-11-06 19:49:34 +02:00
Aliaksandr Valialkin	e472f0b23b	lib/storage: substitute error message about unsorted items in the index block after metricIDs merge with counter ... The origin of the error has been detected and documented in the code, so it is enough to export a counter for such errors at `vm_index_blocks_with_metric_ids_incorrect_order_total`, so it could be monitored and alerted on high error rates. Export also the counter for processed index blocks with metricIDs - `vm_index_blocks_with_metric_ids_processed_total`, so its' rate could be compared to `rate(vm_index_blocks_with_metric_ids_incorrect_order_total)`.	2019-11-06 14:28:11 +02:00
Aliaksandr Valialkin	c51ca04a43	lib/storage: take into account the requested time range when caching TSIDs for the given tag filters	2019-11-06 14:28:11 +02:00
Aliaksandr Valialkin	e37f06dc52	lib/storage: dump incorrectly sorted items on a single line; this should simplify error reporting	2019-11-05 18:44:22 +02:00
Aliaksandr Valialkin	5c2099ecfe	lib/storage: return back finalPartsToMerge from 2 to 3 in order to prevent from excessive merges in old partitions	2019-11-05 17:27:48 +02:00
Aliaksandr Valialkin	885ba17905	lib/storage: separate the max inverted index scan loops per metric into fast and slow loops ... Slow loops could require seeks and expensive regexp matching, while fast loops just scans all the metricIDs for the given `tag=value` prefix. So these operations must have separate max loops multiplier.	2019-11-05 17:27:48 +02:00
Aliaksandr Valialkin	b9a06e8e74	lib/storage: skip repeated useless work when intersection of metricIDs with the given filter is too expensive ... This should improve performance for query filters over big number of time series.	2019-11-05 14:19:13 +02:00
Aliaksandr Valialkin	30c8301b11	lib/storage: reduce the maximum inverted index scans before giving up to label filters matching by metric name ... The new value reduces the amount of wasted work during index scans over big number of time series.	2019-11-05 14:19:06 +02:00
Aliaksandr Valialkin	e53f9e553d	lib/storage: try potentially faster tag filters at first, then apply slower tag filters ... The fastest tag filters are non-negative non-regexp, since they are the most specific. The slowest tag filters are negative regexp, since they require scanning all the entries for the given label.	2019-11-05 14:19:01 +02:00
Aliaksandr Valialkin	3c90d77858	lib/storage: pass pointer to MetricName in Fatalf, so it is properly detected as an interface with String() method ... This fixes lint errors	2019-11-04 01:07:19 +02:00
Artem Navoiev	478767d0ed	add unittests for bytesutil and storage (#221)	2019-11-04 00:54:46 +02:00
Aliaksandr Valialkin	02e0b19a62	lib/storage: tune the returned value from adjustMaxMetricsAdaptive	2019-11-04 00:44:37 +02:00
Aliaksandr Valialkin	6be4456d88	lib/{storage,uint64set}: add Set.Union() function and use it	2019-11-04 00:44:37 +02:00
Aliaksandr Valialkin	9becc26f4b	lib/storage: remove interface conversion in hot path during block merging ... This should improve merge speed a bit for parts with big number of small blocks.	2019-11-03 12:33:34 +02:00
Aliaksandr Valialkin	c62399eb3e	lib/{storage,mergeset}: create missing partition directories after restoring from backups ... Backup tools could skip empty directories. So re-create such directories on the first run.	2019-11-02 02:27:11 +02:00
Aliaksandr Valialkin	d18ea0c95b	app/vmstorage: add -bigMergeConcurrency and -smallMergeConcurrency flags for tuning the maximum number of CPU cores used during merges	2019-10-31 16:19:13 +02:00
Aliaksandr Valialkin	e0b292c6de	lib/storage: small cleanup in Storage.add	2019-10-31 14:30:34 +02:00
Aliaksandr Valialkin	26d570bb3a	lib/storage: get parts to merge after applying the limit on the number of concurrent merges ... This should reduce write amplification under high ingestion rate.	2019-10-30 02:04:56 +02:00
Aliaksandr Valialkin	2e2eff90d5	lib/{mergeset,storage}: limit the maximum number of concurrent merges; leave smaller number of parts during final merge	2019-10-29 12:45:28 +02:00
hanzai	b3c946e35a	warns during rows addition (#214)	2019-10-20 23:41:07 +03:00
Aliaksandr Valialkin	e83fe938c8	all: make fmt	2019-10-17 20:04:34 +03:00
Aliaksandr Valialkin	97ce4e03a5	all: add support for GOARCH=386 and fix all the issues related to 32-bit architectures such as GOARCH=arm ... Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/212	2019-10-17 18:23:23 +03:00
Aliaksandr Valialkin	f6334bffa1	lib/storage: harden the check that the original items are sorted after mergeTagToMetricIDsRows fails to preserve sort order	2019-10-09 12:13:17 +03:00
Aliaksandr Valialkin	2abd5154e0	lib/storage: typo fix in comment to maxRowsPerSmallPart.	2019-10-08 18:51:20 +03:00
Aliaksandr Valialkin	c1cf7d9f93	lib/storage: add tests for mergeTagToMetricIDsRows and return the original items if the function breaks items` ordering. ... This should save from data corruption issues revealed in the previous releases up to v1.28.0-beta5.	2019-10-08 16:27:35 +03:00
Aliaksandr Valialkin	0fa6df94a2	lib/storage: optimize TSID comparison	2019-09-26 14:16:02 +03:00
Aliaksandr Valialkin	c39355921e	lib/storage: verify whether items are sorted in the end of call to mergeTagToMetricIDsRows ... This should prevent from inverted index corruption if bug in mergeTagToMetricIDsRows is discovered.	2019-09-26 13:13:41 +03:00
Aliaksandr Valialkin	0db9fcedd5	lib/storage: properly match labels against regexp with (?i) flag ... Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/161	2019-09-26 11:03:10 +03:00
Aliaksandr Valialkin	2444433d83	lib/storage: add missing break in removeDuplicateMetricIDs	2019-09-25 18:23:43 +03:00
Aliaksandr Valialkin	ea4c828bae	lib/storage: remove duplicate MetricIDs in tag->metricIDs items before writing them into inverted index	2019-09-25 17:55:13 +03:00
Aliaksandr Valialkin	aebc45ad26	lib/{mergeset,storage}: do not cache inverted index blocks containing tag->metricIDs items ... This should reduce the amounts of used RAM during queries with filters over big number of time series.	2019-09-25 14:02:15 +03:00
Aliaksandr Valialkin	b986516fbe	lib/storage: create and use lib/uint64set instead of map[uint64]struct{} ... This should improve inverted index search performance for filters matching big number of time series, since `lib/uint64set.Set` is faster than `map[uint64]struct{}` for both `Add` and `Has` calls. See the corresponding benchmarks in `lib/uint64set`.	2019-09-24 21:17:55 +03:00
Aliaksandr Valialkin	ef2296e420	lib/storage: typo fix: return dstData instead of data from mergeTagToMetricIDsRows	2019-09-24 19:32:34 +03:00
Aliaksandr Valialkin	a6086cde78	lib/storage: limit the number of metricIDs in tag->metricIDs row ... This reduces the overhead on index and metaindex in lib/mergeset	2019-09-24 00:49:51 +03:00
Aliaksandr Valialkin	c9063ece66	lib/storage: share tsids across all the partSearch instances ... This should reduce memory usage when big number of time series matches the given query.	2019-09-23 22:35:15 +03:00
Aliaksandr Valialkin	4e26ad869b	lib/{storage,mergeset}: verify PrepareBlock callback results ... Do not touch the first and the last item passed to PrepareBlock in order to preserve sort order of mergeset blocks.	2019-09-23 20:43:13 +03:00
Aliaksandr Valialkin	0adebae1f8	lib/storage: generate the first tag->metricIDs item in a mergeset block with a single metricID ... The first item from each mergeset block goes into index (lib/mergeset.blockHeader), so it must be short in order to reduce index size.	2019-09-22 19:21:33 +03:00
Aliaksandr Valialkin	0686ac52c3	lib/{storage,mergeset}: merge tag->metricID rows into tag->metricIDs rows for common tag values ... This should improve lookup performance if the same `label=value` pair exists in big number of time series. This should also reduce memory usage for mergeset data cache, since `tag->metricIDs` rows occupy less space than the original `tag->metricID` rows.	2019-09-20 22:06:41 +03:00
Aliaksandr Valialkin	a544f49c2b	lib/storage: optimize selecting all the metricIDs by scanning MetricID->TSID entries instead of tag->MetricID entries ... The number of MetricID->TSID entries is smaller than the number of tag->MetricID entries and MetricID->TSID entries are usually shorter than tag->MetricID entries. This should improve performance when selecting all the metricIDs.	2019-09-20 11:54:10 +03:00
Aliaksandr Valialkin	a84fe76677	lib/storage: use sort.Sort instead of sort.slice in getSortedMetricIDs	2019-09-19 20:07:22 +03:00
Aliaksandr Valialkin	3a697a935a	lib/storage: skip duplicate call to intersectMetricIDsWithTagFilter on zero successful intersects	2019-09-19 17:49:56 +03:00
Aliaksandr Valialkin	3d83f5d334	lib/storage: mark tag filter returning errFallbackToMetricNameMatch as useless ... This will save CPU on subsequent calls for this filter	2019-09-18 19:10:32 +03:00
Aliaksandr Valialkin	8d35718dc6	lib/storage: properly construct keys for uselessTagFiltersCache and register useless negative tag filters there	2019-09-17 23:20:27 +03:00
Aliaksandr Valialkin	bad53e4207	lib/mergeset: dynamically calculate the maximum number of items per part, which can be cached in OS page cache	2019-09-11 14:53:45 +03:00
Aliaksandr Valialkin	9eb5de334f	lib/storage: typo fix	2019-09-04 19:58:01 +03:00
Aliaksandr Valialkin	16dd145586	lib/storage: remove duplicate tag keys on MetricName.Marshal call ... Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/172	2019-09-04 18:13:45 +03:00
Aliaksandr Valialkin	e1d76ec1f3	lib/storage: invalidate tagFilters -> TSIDS cache when newly added index data becomes visible to search ... Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/163	2019-08-29 15:08:35 +03:00
Aliaksandr Valialkin	9196c085a7	all: port to FreeBSD on GOARCH=amd64	2019-08-28 01:19:23 +03:00
Aliaksandr Valialkin	2655220c58	lib/storage: go fmt	2019-08-27 14:29:51 +03:00