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141 Commits

Author SHA1 Message Date
Dmytro Kozlov
d32a6359b0
vmselect/promql: enable search.maxPointsSubqueryPerTimeseries for sub-queries (#2963) 
* vmselect/promql: enable search.maxPointsPerTimeSeriesSubquery for sub-queries

* vmselect/promql: cleanup

* vmselect/promql: rename config flag

* vmselect/promql: add tests

* vmselect/promql: use test object instead of log

* vmselect/promql: fix posible panic is subquery has more points. add description

* vmselect/promql: update tests descriptions

* vmselect/promql: update doInternal validation

* vmselect/promql: fix linter

* vmselect/promql: fix linter

* vmselect/promql: update documentation and release notes

* wip

- Properly apply -search.maxPointsSubqueryPerTimeseries limit to subqueries.
  Previously the -search.maxPointsPerTimeseries limit was unexpectedly applied to subqueries
  if it was smaller than the -search.maxPointsSubqueryPerTimeseries .
- Clarify docs for -search.maxPointsSubqueryPerTimeseries command-line flag .
- Document -search.maxPointsPerTimeseries and -search.maxPointsSubqueryPerTimeseries flags at https://docs.victoriametrics.com/#resource-usage-limits .
- Update docs/CHANGELOG.md .

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2922

Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
 2022-08-24 15:27:41 +03:00
Roman Khavronenko
8a26ec435d
vmselect: introduce UserReadableError type of error (#2894) 
When read query fails, VM returns rich error message with
all the details. While these details might be useful
for debugging specific cases, they're usually too verbose
for users.
Introducing a new error type `UserReadableError` is supposed
to allow to return to user only the most important parts
of the error trace. This supposed to improve error readability
in web interfaces such as VMUI or Grafana.

The full error trace is still logged with the full context
and can be found in vmselect logs.

Signed-off-by: hagen1778 <roman@victoriametrics.com>

Signed-off-by: hagen1778 <roman@victoriametrics.com>
 2022-08-15 13:53:18 +03:00
Dmytro Kozlov
6734d77d97
vmselect/prometeus: Add limit param to api/v1/series api endpoint (#2851) 
* issue-2841: Add limit param to api/v1/series api endpoint

* issue-2841: add change log

* issue-2841: update logic

* issue-2841: simplify logic

* issue-2841: simplify logic, add information to documentation
 2022-07-11 20:37:20 +03:00
Aliaksandr Valialkin
eab8ebbe11
all: make fmt via the upcoming Go1.19 2022-07-11 19:23:25 +03:00
Aliaksandr Valialkin
cdd89d9cc2
app/vmselect: properly generate response for /api/v1/series 
The response has been broken in 7d5d33fd71
 2022-07-06 12:46:23 +03:00
Aliaksandr Valialkin
f4df43f7cc
app/vmselect/netstorage: remove unused auth.Token arg 2022-07-06 12:46:21 +03:00
Aliaksandr Valialkin
c21f5a508f
app/vmselect/prometheus: reduce the default value for -search.maxSeries from 100k to 30k 
Production experience shows that 100k is too big for /api/v1/series .
It leads to increased CPU usage when Grafana queries /api/v1/series over VictoriaMetrics
with big number of time series during auto-completion and when modifying template variables.
 2022-06-28 18:22:24 +03:00
Aliaksandr Valialkin
7d5d33fd71
lib/storage: return marshaled metric names from SearchMetricNames 
Previously SearchMetricNames was returning unmarshaled metric names.
This wasn't great for vmstorage, which should spend additional CPU time
for marshaling the metric names before sending them to vmselect.

While at it, remove possible duplicate metric names, which could occur when
multiple samples for new time series are ingested via concurrent requests.

Also sort the metric names before returning them to the client.
This simplifies debugging of the returned metric names across repeated requests to /api/v1/series
 2022-06-28 18:16:32 +03:00
Aliaksandr Valialkin
399d4c36ae
app/vmselect: optimize /api/v1/series a bit for time ranges smaller than one day 2022-06-28 12:55:20 +03:00
Aliaksandr Valialkin
bc9d704ef4
app/vmselect/netstorage: remove Get prefix from netstorage functions 
This makes these function names more consistent with the server side
 2022-06-27 00:37:49 +03:00
Aliaksandr Valialkin
7429dfbe9e
app/vmselect: add -search.setLookbackToStep command-line flag for making the gap filling algorithm similar to InfluxDB data model 
This option should override `-search.maxStalenessInterval` for most cases when users migrate from InfluxDB to VictoriaMetrics
 2022-06-22 14:20:02 +03:00
Roman Khavronenko
cbe39bbb8d
vmselect: limit end param max value by 2d in future (#2729) 
* vmselect: limit `end` param max value by 2d in future

The change is applied only to service handlers like `/labels` or `/series`
and limits the `end` param by max value <= now() + 2 days. The same limit
is applied for the ingested data, so no reason to allow to request data
in future far than that.

The change is also needed for corner cases like https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2669
where too high `end` value triggers inefficient global index search.

Signed-off-by: hagen1778 <roman@victoriametrics.com>

* docs/CHANGELOG.md: document the bugfix

Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
 2022-06-16 20:51:40 +03:00
Aliaksandr Valialkin
45fa9d798d
app/vmselect: accept focusLabel query arg at /api/v1/status/tsdb 2022-06-14 18:39:00 +03:00
Aliaksandr Valialkin
fb77843639
lib/storage: show top labels with the highest number of series in cardinality explorer 2022-06-14 16:34:13 +03:00
Aliaksandr Valialkin
61e03f172b
app/vmselect: optimize /api/v1/labels and /api/v1/label/.../values handlers when match[] query arg is passed to them 2022-06-12 14:06:24 +03:00
Aliaksandr Valialkin
4a94cd81ce
app/vmselect: add optional limit query arg to /api/v1/labels and /api/v1/label_values endpoints 
This arg allows limiting the number of sample values returned from these APIs
 2022-06-10 10:24:07 +03:00
Aliaksandr Valialkin
1335698ba7
app/vmselect/prometheus: extract common code for obtaining common query args into getCommonParams() function 2022-06-09 20:33:36 +03:00
Aliaksandr Valialkin
cb39eada77
all: improve query tracing coverage for indexdb search 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1403
 2022-06-09 20:04:02 +03:00
Aliaksandr Valialkin
7fe60dad10
app/vmselect: remove redundant calls to Request.ParseForm() 
Request.ParseForm() is implicitly called by the first call to Request.FormValue()
 2022-06-09 13:09:52 +03:00
Aliaksandr Valialkin
a9ea3fee38
lib/querytracer: make it easier to use by passing trace context message to New and NewChild 
The context message can be extended by calling Donef.
If there is no need to extend the message, then just call Done.
 2022-06-08 21:16:12 +03:00
Dmytro Kozlov
f2754c3e90
Cardinality explorer (#2625) 
* Cardinality explorer

* vmui, vmselect: updated field name, added description to spinner

* make vmui-update

* updated const name, make vmui-update

* lib/storage: changes calculation for totalSeries values

* added static files

* wip

* wip

* wip

* wip

* docs/CHANGELOG.md: document cardinality explorer feature

See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2233

Co-authored-by: f41gh7 <nik@victoriametrics.com>
Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
 2022-06-08 18:54:27 +03:00
Aliaksandr Valialkin
afced37c0b
all: add initial support for query tracing 
See https://docs.victoriametrics.com/Single-server-VictoriaMetrics.html#query-tracing

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1403
 2022-06-01 02:31:44 +03:00
Dima Lazerka
b5fce4190c
Code cleanup (#343) 
* Small code cleanup: remove Request from params

* Extract common params to all export handlers

* Renamed ExportParams -> exportParams

* wip

Co-authored-by: Dzmitry Lazerka <dlazerka@gmail.com>
Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
 2022-05-03 15:53:58 +03:00
Aliaksandr Valialkin
4fa3cd701c
docs/Cluster-VictoriaMetrics.md: typo fix: serparated -> separated 2022-05-03 15:20:11 +03:00
Dima Lazerka
e6ee235707
Export "null" in jsonl instead of NaN (#2518) 
* Export "null" in jsonl instead of NaN

The NaN appeared because of staleness markers that were added for compatibility. I think it's better to use json `null`, implemented here.

Also maybe it also makes sense to add a flag like `?skip-staleness-markers=true` to `/export`, to skip nulls at all?

* Update app/vmselect/prometheus/export.qtpl

* app/vmselect/prometheus/export.qtpl.go: `make quicktemplate-gen`

* docs/CHANGELOG.md: document the change

Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
 2022-04-29 12:51:03 +03:00
Aliaksandr Valialkin
b843f0e229
app/vmselect: add fine-grained limits for the number of returned/scanned time series for various APIs 2022-03-26 11:28:14 +02:00
Aliaksandr Valialkin
c2b0a6109b
app/vmselect/prometheus: typo fix after bf0e3ad2171219b7883b149999c4dc0ac15b9797 2021-12-17 11:52:42 +02:00
Aliaksandr Valialkin
d9f075622b
app/vmselect: de-duplicate data exported via /api/v1/export/csv by default 
Previously the exported data wasn't de-duplicated.
Now it is possible to export the raw data without deduplication
by passing reduce_mem_usage=1 query arg to /api/v1/export/csv

See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1837
 2021-12-17 11:52:42 +02:00
Aliaksandr Valialkin
54d4a1c959
app/vmselect: accept optional extra_filters[] query args for all the supported Prometheus querying APIs 
See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1863
 2021-12-06 17:33:49 +02:00
Aliaksandr Valialkin
4fb19fe34b
all: consistently return application/json content-type without charset=utf-8 
The `application/json` content-type has utf-8 encoding by default.
See https://stackoverflow.com/questions/9254891/what-does-content-type-application-json-charset-utf-8-really-mean

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/pull/897
 2021-11-09 18:07:22 +02:00
Aliaksandr Valialkin
a4eaf1a0a1 app/vmselect/prometheus: make more clear log messages for errors during sending data to remote clients 2021-09-16 13:35:37 +03:00
Aliaksandr Valialkin
7ad54041fe app/{vminsert,vmselect}: automatically add missing port in -storageNode lists passed to vminsert and vmselect 
This should simplify manual setup of the cluster according to https://docs.victoriametrics.com/Cluster-VictoriaMetrics.html#cluster-setup
 2021-09-15 18:04:30 +03:00
Roman Khavronenko
1ccb77904b vmselect: update vm_request_duration_seconds value when request fails (#1537) 
Before, metric `vm_request_duration_seconds` was update only on successful
attempts which could be misleading. For example, timeout errors on netstorage
request may be not accounted in the metric and won't be visible on dashboards.
Using `defer` statement to update the metric after query arguments validation
may improve the situation.
 2021-08-19 14:07:00 +03:00
Aliaksandr Valialkin
9add9d86a6 app/vmselect/promql: duration handling improvements in MetricsQL queries 
- Support durations anywhere in MetricsQL queries. E.g. sum_over_time(m[1h])/1h is equivalent to sum_over_time(m[1h])/3600
- Support durations without suffix. E.g. rate(m[300]) is equivalent to rate(m[5m])
 2021-07-12 17:19:32 +03:00
John Belmonte
3e79f3994e spelling fix: synonym (#1363) 2021-06-11 10:58:48 +03:00
Nikolay
be87be34a4 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 17:16:58 +03:00
Aliaksandr Valialkin
6dc5d3b357 all: rename https://victoriametrics.github.io to https://docs.victoriametrics.com 2021-04-20 20:20:01 +03:00
Aliaksandr Valialkin
d8c769e6af app/vmselect: add -search.maxStatusRequestDuration command-line flag for limiting the duration of requests to /api/v1/status/* and /api/v1/series/count 2021-03-30 21:39:32 +03:00
Aliaksandr Valialkin
698ccca6ad app/vmselect/prometheus: explain why partial responses are disallowed during data export 
See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1148
 2021-03-25 18:39:07 +02:00
Aliaksandr Valialkin
27bb614016 app/vmselect: move getEnforcedTagFiltersFromRequest to searchtuils, since it will be used in Graphite functions soon 2021-03-23 14:57:57 +02:00
Aliaksandr Valialkin
6b9bba7448 app/vmselect: add round_digits query arg to /api/v1/query and /api/v1/query_range handlers for limiting the number of decimal digits after the point 2021-03-15 12:38:59 +02:00
Aliaksandr Valialkin
b6dcb37fca app/vmselect/prometheus: do not include datapoints with timestamps matching t-d when returning results from /api/v1/query?query=m[d]&time=t as Prometheus does 2021-03-12 12:18:37 +02:00
Aliaksandr Valialkin
ee4288987b app/vmselect/prometheus: treat match query arg in the same way as match[] query arg 2021-02-11 15:01:55 +02:00
Aliaksandr Valialkin
4b930b9ffe app/vmselect: add ability to set Graphite-compatible filter via {__graphite__="foo.*.bar"} syntax 2021-02-03 01:17:19 +02:00
Aliaksandr Valialkin
7d23f3ff3a app/vmselect: add ability to set an additional label filters via extra_label query arg 2021-02-01 17:42:35 +02:00
Aliaksandr Valialkin
5328a102e0 app/vmselect: unconditionally deny partial responses from /api/v1/export* 
It is expected that `/api/v1/export*` returns full data, so there is no sense in partial responses there.
 2021-01-27 14:39:53 +02:00
Aliaksandr Valialkin
e55205220b app/vmselect: add -search.maxStepForPointsAdjustment command-line flag, which can be used for disabling adjustment for points returned from /api/v1/query_range handler if they have timestamps closer than -search.latencyOffset to the current time 2021-01-19 22:57:50 +02:00
Aliaksandr Valialkin
5bbf200de2 app/vmselect: add per-tenant /api/v1/status/top_queries handler 2020-12-27 12:53:50 +02:00
Aliaksandr Valialkin
e6deb39064 app/vmselect: refactor /api/v1/stats/top_queries 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/907
 2020-12-25 17:24:25 +02:00
Nikolay
76d092c091 Adds query stats handler (#945) 
* Adds query stat handler,
for query and query_range api, victoriametrics tracks query execution time,
stats are expored at /api/v1/status/queries endpoint with topN param
https://github.com/VictoriaMetrics/VictoriaMetrics/issues/907

* fixed query stats bugs

* improves queryStats tracker

* improves query stat

* small fix

* fix tests

* added more tests

* fixes 386 tests

* naming fixes

* adds drop for outdated records
 2020-12-25 17:24:24 +02:00