Commit Graph

497 Commits

Author SHA1 Message Date
Aliaksandr Valialkin
81fe089546
docs/Single-server-VictoriaMetrics.md: mention how to use Prometheus config file with unsupported options
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/4274
2023-07-09 12:37:44 -07:00
Zakhar Bessarab
ddd918b93c
docs: make httpAuth.* flags description less ambiguous (#4588)
* docs: make `httpAuth.*` flags description less ambiguous

Currently, it may confuse users whether `httpAuth.*` flags are used by HTTP client or server configuration(see https://github.com/VictoriaMetrics/VictoriaMetrics/issues/4586 for example).

Signed-off-by: Zakhar Bessarab <z.bessarab@victoriametrics.com>

* docs: fix a typo

Signed-off-by: Zakhar Bessarab <z.bessarab@victoriametrics.com>

---------

Signed-off-by: Zakhar Bessarab <z.bessarab@victoriametrics.com>
2023-07-09 12:36:14 -07:00
Aliaksandr Valialkin
65d7194588
docs/Single-server-VictoriaMetrics.md: update -help output 2023-07-06 22:45:58 -07:00
Roman Khavronenko
690f58c016
docs: explicitly mention errors processing for import APIs (#4583)
Signed-off-by: hagen1778 <roman@victoriametrics.com>
2023-07-06 22:26:04 -07:00
Denys Holius
97a5bdf4f0
docs: adds curl commands to clear the query cache (#4468)
adds curl commands to clear query cache on vmselect/VM Single
2023-07-06 22:25:21 -07:00
Aliaksandr Valialkin
7cf5efc5b8
README.md: add a link to VictoriaLogs 2023-07-06 22:23:54 -07:00
Aliaksandr Valialkin
5b94246d92
docs: add Roblox case study 2023-07-06 22:23:13 -07:00
Aliaksandr Valialkin
ff96e9cfc7
docs/Single-server-VictoriaMetrics.md: fix link to Storage section after the ab2d184e42 2023-07-06 22:22:42 -07:00
Roman Khavronenko
9cfd8d6b86
Docs retention (#4568)
* docs: mention parts and partitions in Retention section

Signed-off-by: hagen1778 <roman@victoriametrics.com>
2023-07-06 22:19:43 -07:00
Zakhar Bessarab
b801360075
docs: clarify downsampling periods requirements (#4542)
It is required for periods to be multiplies, but it was not stated clearly in documentation.

Signed-off-by: Zakhar Bessarab <z.bessarab@victoriametrics.com>
2023-07-06 21:58:40 -07:00
Artem Navoiev
28301d1b41
remove deleted repo from the docs
Signed-off-by: Artem Navoiev <tenmozes@gmail.com>
2023-07-06 21:47:07 -07:00
Aliaksandr Valialkin
0edfa06daa
docs/Single-server-VictoriaMetrics.md: update link to JSON stream format, since the previous link became broken 2023-07-06 21:20:32 -07:00
Aliaksandr Valialkin
61f9b25782
docs/Single-server-VictoriaMetrics.md: refer to Slack chat at the top of the docs 2023-07-06 21:18:59 -07:00
Aliaksandr Valialkin
46210c4d5e
lib/promutils.ParseTime(): add support for timestamps in milliseconds
See https://stackoverflow.com/questions/76437098/how-to-handle-time-unit-and-step-while-ingesting-or-querying-in-victoriametrics/76438405

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/4459
2023-07-06 17:11:54 -07:00
Roman Khavronenko
0e3e045f5b
docs: mention errors processing for /api/v1/import API (#4448)
https://github.com/VictoriaMetrics/VictoriaMetrics/issues/4446

Signed-off-by: hagen1778 <roman@victoriametrics.com>
2023-07-06 17:01:34 -07:00
Roman Khavronenko
2e3c3cf7ea
docs: make docs-sync (#4430)
docs: fix typo

Signed-off-by: hagen1778 <roman@victoriametrics.com>
2023-07-06 16:47:10 -07:00
Dmytro Kozlov
88ac6116bd
docs: clarify -retentionPeriod flag usage (#4417)
app/vmstorage: clarify the min value for `-retentionPeriod` flag

Co-authored-by: Roman Khavronenko <roman@victoriametrics.com>

(cherry picked from commit 24f34347f1)
Signed-off-by: hagen1778 <roman@victoriametrics.com>
2023-06-09 10:44:22 +02:00
Roman Khavronenko
3544e66a95
docs: mention checksums and data corruption (#4404)
Signed-off-by: hagen1778 <roman@victoriametrics.com>

(cherry picked from commit 96b40b044c)
Signed-off-by: hagen1778 <roman@victoriametrics.com>
2023-06-09 10:40:48 +02:00
Dmytro Kozlov
c5debee3f4
app/{graphite,netstorage,prometheus}: fix graphite search tags api limits, remove redudant limit from SeriesHandler handler (#4352)
* app/{graphite,netstorage,prometheus}: fix graphite search tags api limits, remove unused limit from SeriesHandler handler,

* app/{graphite,netstorage,prometheus}: use search.maxTagValues for Graphite

* app/{graphite,netstorage,prometheus}: update CHANGELOG.md

* app/{graphite,netstorage,prometheus}: use own flags for Graphite API

* app/{graphite,netstorage,prometheus}: cleanup

* app/{graphite,netstorage,prometheus}: cleanup

* app/{graphite,netstorage,prometheus}: update docs

---------

Co-authored-by: Nikolay <nik@victoriametrics.com>

(cherry picked from commit c7884f8686)
Signed-off-by: hagen1778 <roman@victoriametrics.com>
2023-06-09 10:39:12 +02:00
Roman Khavronenko
7da0c37d2b
docs: clarify deduplication docs (#4371)
The purpose of the change is too highlight what HA pair is
and how deduplication needs identical labels to be present
in raw samples.

See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/4367

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

(cherry picked from commit 8185c2466c)
Signed-off-by: hagen1778 <roman@victoriametrics.com>
2023-06-02 13:29:45 +02:00
Roman Khavronenko
c862952cb0
docs: mention disk space requirements for downsampling (#4369)
Signed-off-by: hagen1778 <roman@victoriametrics.com>

(cherry picked from commit a0c040ea58)
Signed-off-by: hagen1778 <roman@victoriametrics.com>
2023-06-02 13:29:14 +02:00
Roman Khavronenko
a0825ca5cd
docs: mention multi-tenancy in docs (#4357)
The update should make understanding of multi-tenancy more clear
for influxdb users.

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

(cherry picked from commit 1c3f50f791)
Signed-off-by: hagen1778 <roman@victoriametrics.com>
2023-06-02 13:28:02 +02:00
Artem Navoiev
3185b8048c
update docs-sync Makefile command, add hugo front-matter
Signed-off-by: Artem Navoiev <tenmozes@gmail.com>

(cherry picked from commit f791811b15)
Signed-off-by: hagen1778 <roman@victoriametrics.com>
2023-06-02 13:24:41 +02:00
Roman Khavronenko
ddc3f0c5c5
docs: mention link to public relabeling playground (#4306)
Signed-off-by: hagen1778 <roman@victoriametrics.com>
2023-05-12 16:57:17 -07:00
Roman Khavronenko
f613d20466
docs: update docs about VMUI pages (#4305)
Signed-off-by: hagen1778 <roman@victoriametrics.com>
2023-05-12 16:56:00 -07:00
Aliaksandr Valialkin
d21a244641
lib/promutils: properly parse time strings with timezones at ParseTime() 2023-05-11 13:36:00 -07:00
Dmytro Kozlov
fd35f023dd
docs: Add information about datasource plugin (#4266)
docs: Add information about datasource plugin
2023-05-10 02:24:33 -07:00
Alexander Marshalov
d321ea91f2
fixed typos in documentation and commandline flags descriptions (#4275) 2023-05-10 02:22:06 -07:00
Roman Khavronenko
f247160699
docs: note automatic conversion to ms for influx protocol (#4224)
Signed-off-by: hagen1778 <roman@victoriametrics.com>
2023-05-08 21:55:58 -07:00
Roman Khavronenko
c6511bc2d0
Revert "http server: limit max concurrent requests (#4185)" (#4215)
This reverts commit 77f76371

Signed-off-by: hagen1778 <roman@victoriametrics.com>
2023-05-08 17:22:27 -07:00
Roman Khavronenko
20b025dc88
http server: limit max concurrent requests (#4185)
* lib/httpserver: introduce `-http.maxConcurrentRequests` command-line flag

Introduce `-http.maxConcurrentRequests` command-line flag to protect
VM components from resource exhaustion during unexpected spikes of HTTP requests.
By default, the new flag's value is set to 0 which means no limits are applied.

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

* lib/httpserver: mention http.maxConcurrentRequests in docs

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

---------

Signed-off-by: hagen1778 <roman@victoriametrics.com>
2023-05-08 13:13:58 -07:00
Aliaksandr Valialkin
cf53ce83a0
app/vmstorage: deprecate -bigMergeConcurrency command-line flag
Improperly configured -bigMergeConcurrency command-line flag usually leads to uncontrolled
growth of unmerged parts, which, in turn, increases CPU usage and query durations.

So it is better deprecating this flag. In rare cases -smallMergeConcurrency command-line flag
can be used instead for controlling the concurrency of background merges.
2023-04-13 20:42:22 -07:00
Aliaksandr Valialkin
b33dd2e577
docs/Single-server-VictoriaMetrics.md: document automatic switch from graph view to heatmap view for histogram buckets
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3384
2023-04-10 10:52:24 -07:00
Aliaksandr Valialkin
db8fda4ec6
app/vmselect/graphite: open source Graphite Render API 2023-03-31 23:37:40 -07:00
Aliaksandr Valialkin
dad13c0a91
lib/streamaggr: follow-up for ff72ca14b9
- Make sure that the last successfully loaded config is used on hot-reload failure
- Properly cleanup resources occupied by already initialized aggregators
  when the current aggregator fails to be initialized
- Expose distinct vmagent_streamaggr_config_reload* metrics per each -remoteWrite.streamAggr.config
  This should simplify monitoring and debugging failed reloads
- Remove race condition at app/vminsert/common.MustStopStreamAggr when calling sa.MustStop() while sa
  could be in use at realoadSaConfig()
- Remove lib/streamaggr.aggregator.hasState global variable, since it may negatively impact scalability
  on system with big number of CPU cores at hasState.Store(true) call inside aggregator.Push().
- Remove fine-grained aggregator reload - reload all the aggregators on config change instead.
  This simplifies the code a bit. The fine-grained aggregator reload may be returned back
  if there will be demand from real users for it.
- Check -relabelConfig and -streamAggr.config files when single-node VictoriaMetrics runs with -dryRun flag
- Return back accidentally removed changelog for v1.87.4 at docs/CHANGELOG.md

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3639
2023-03-31 22:54:10 -07:00
Aliaksandr Valialkin
957d64e302
docs: mention that VictoriaMetrics rounds time range to UTC days at /api/v1/labels, /api/v1/label/.../values and /api/v1/series handlers
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3107
2023-03-28 17:01:09 -07:00
Aliaksandr Valialkin
fc3d826d7f
all: add Windows build for VictoriaMetrics
This commit changes background merge algorithm, so it becomes compatible with Windows file semantics.

The previous algorithm for background merge:

1. Merge source parts into a destination part inside tmp directory.
2. Create a file in txn directory with instructions on how to atomically
   swap source parts with the destination part.
3. Perform instructions from the file.
4. Delete the file with instructions.

This algorithm guarantees that either source parts or destination part
is visible in the partition after unclean shutdown at any step above,
since the remaining files with instructions is replayed on the next restart,
after that the remaining contents of the tmp directory is deleted.

Unfortunately this algorithm doesn't work under Windows because
it disallows removing and moving files, which are in use.

So the new algorithm for background merge has been implemented:

1. Merge source parts into a destination part inside the partition directory itself.
   E.g. now the partition directory may contain both complete and incomplete parts.
2. Atomically update the parts.json file with the new list of parts after the merge,
   e.g. remove the source parts from the list and add the destination part to the list
   before storing it to parts.json file.
3. Remove the source parts from disk when they are no longer used.

This algorithm guarantees that either source parts or destination part
is visible in the partition after unclean shutdown at any step above,
since incomplete partitions from step 1 or old source parts from step 3 are removed
on the next startup by inspecting parts.json file.

This algorithm should work under Windows, since it doesn't remove or move files in use.
This algorithm has also the following benefits:

- It should work better for NFS.
- It fits object storage semantics.

The new algorithm changes data storage format, so it is impossible to downgrade
to the previous versions of VictoriaMetrics after upgrading to this algorithm.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3236
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3821
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/70
2023-03-19 23:28:26 -07:00
Aliaksandr Valialkin
c9e30dd892
all: typo fix in the same way as in e566d49e3a: 8248 -> 8428 2023-03-16 22:08:26 -07:00
Aliaksandr Valialkin
9aa6b63160
docs/Single-server-VictoriaMetrics.md: clarify that the cache directory can be removed manually when VictoriaMetrics is stopped 2023-03-13 00:24:01 -07:00
Denys Holius
e8a0d60ea5
Adds snap badge to README.md (#3930)
docs: adds snap badge to README.md
2023-03-11 23:31:38 -08:00
Aliaksandr Valialkin
e91fe74618
all: typo fixes of the same type as in the d056be710b 2023-03-08 01:37:28 -08:00
Craig Rodrigues
4c94fe0f0a
docs: move installation methods further up in README (#3904) 2023-03-08 01:09:35 -08:00
Aliaksandr Valialkin
086a4b4fca
lib/bytesutil: add -internStringDisableCache and -internStringCacheExpireDuration command-line flags
This commit is based on https://github.com/VictoriaMetrics/VictoriaMetrics/pull/3872
2023-02-27 14:18:02 -08:00
Aliaksandr Valialkin
1ad0d22e80
lib/storage: follow-up for 39cdc546dd
- Use flag.Duration instead of flagutil.Duration for -snapshotCreateTimeout,
  since the flagutil.Duration is intended mostly for big durations, e.g. days, months and years,
  while the -snapshotCreateTimeout is usually smaller than one hour.
- Add links to https://docs.victoriametrics.com/#how-to-work-with-snapshots in docs/CHANGELOG.md,
  so readers could easily find the corresponding docs when reading the changelog.
- Properly remove all the created directories on unsuccessful attempt to create
  snapshot in Storage.CreateSnapshot().

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3551
2023-02-27 13:11:10 -08:00
Zakhar Bessarab
26682e369e
lib/storage: enhancements for snapshots process (#3873)
* lib/{fs,mergeset,storage}: skip `.must-remove.` dirs when creating snapshot (#3858)

* lib/{mergeset,storage}: add timeout configuration for snapshots creation, remove incomplete snapshots from storage

* docs: fix formatting

* app/vmstorage: add metrics to track status of snapshots

* app/vmstorage: use `vm_http_requests_total` metric for snapshot endpoints metrics, rename new flag to make name more clear

Signed-off-by: Zakhar Bessarab <z.bessarab@victoriametrics.com>

* app/vmstorage: update flag name in docs

Signed-off-by: Zakhar Bessarab <z.bessarab@victoriametrics.com>

* app/vmstorage: reflect new metrics names change in docs

Signed-off-by: Zakhar Bessarab <z.bessarab@victoriametrics.com>

---------

Signed-off-by: Zakhar Bessarab <z.bessarab@victoriametrics.com>
Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
2023-02-27 13:11:06 -08:00
Aliaksandr Valialkin
90114759fa
docs: update -help output after e1c3267e34 2023-02-24 17:16:24 -08:00
Roman Khavronenko
66d0b45651
vmselect/promql: check for deadline in count_values fn (#3806)
* vmselect/promql: check for deadline in `count_values` fn

`count_values` could be very slow during the data processing.
Checking for deadline between iterations supposed to reduce
probability of exceeding `search.maxQueryDuration`.

The change also adds a new trace record, which captures the time
spent in aggregation function. Before that, the trace for aggr funcs
could be confusing since it doesn't account for all the places where
time was spent.

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

* wip

---------

Signed-off-by: hagen1778 <roman@victoriametrics.com>
Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
2023-02-24 17:10:38 -08:00
Aliaksandr Valialkin
3563c6882e
docs: update --help descriptions after recent changes 2023-02-23 19:02:32 -08:00
Aliaksandr Valialkin
1b70238dca
lib/promscrape/discovery/kuma: follow-up for 317fef95f9
- Do not generate __meta_server label, since it is unavailable in Prometheus.
- Add a link to https://docs.victoriametrics.com/sd_configs.html#kuma_sd_configs to docs/CHANGELOG.md,
  so users could click it and read the docs without the need to search the corresponding docs.
- Remove kumaTarget struct, since it is easier generating labels for discovered targets
  directly from the response returned by Kuma. This simplifies the code.
- Store the generated labels for discovered targets inside atomic.Value. This allows reading them
  from concurrent goroutines without the need to use mutex.
- Use synchronouse requests to Kuma instead of long polling, since there is a little sense
  in the long polling when the Kuma server may return 304 Not Modified response every -promscrape.kumaSDCheckInterval.
- Remove -promscrape.kuma.waitTime command-line flag, since it is no longer needed when long polling isn't used.
- Set default value for -promscrape.kumaSDCheckInterval to 30s in order to be consistent with Prometheus.
- Remove unnecessary indirections for string literals, which are used only once, in order to improve code readability.
- Remove unused fields from discoveryRequest and discoveryResponse.
- Update tests.
- Document why fetch_timeout and refresh_interval options are missing in kuma_sd_config.
- Add docs to discoveryutils.RequestCallback and discoveryutils.ResponseCallback,
  since these are public types.

Side notes: it is weird that Prometheus implementation for kuma_sd_configs sets `instance` label,
since usually this label is set by the Prometheus itself to __address__ after the relabeling phase.
See https://www.robustperception.io/life-of-a-label/

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3389

See https://github.com/prometheus/prometheus/issues/7919
and https://github.com/prometheus/prometheus/pull/8844
as a reference implementation in Prometheus
2023-02-22 17:50:54 -08:00
Artem Navoiev
522179fbde
docs: fix typo OpentTSDB -> OpenTSDB (#3854)
Signed-off-by: Artem Navoiev <tenmozes@gmail.com>
2023-02-22 12:11:48 -08:00