Commit graph

796 commits

Author SHA1 Message Date
Aliaksandr Valialkin
7afcca0c51
all: use metricsql.CompileRegexp instead of regexp.Compile for compiling regexps used in graphite queries
This should speed up repeated queries, since metricsql.CompileRegexp returns regexps from the cache
on subsequent calls for the same input regexp.
2023-01-09 21:43:08 -08:00
Aliaksandr Valialkin
41e00a0df7
lib/storage: simplify the fix from 488940502c
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3566
2023-01-07 01:04:43 -08:00
Dmytro Kozlov
488940502c
lib/storage: fix returning camelcase label names (#3608)
* lib/storage: fix returning camelcase label names

* doc: add change log

* Update docs/CHANGELOG.md

* Update docs/CHANGELOG.md

Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
2023-01-07 00:50:14 -08:00
Aliaksandr Valialkin
c63755c316
lib/writeconcurrencylimiter: improve the logic behind -maxConcurrentInserts limit
Previously the -maxConcurrentInserts was limiting the number of established client connections,
which write data to VictoriaMetrics. Some of these connections could be idle.
Such connections do not consume big amounts of CPU and RAM, so there is a little sense in limiting
the number of such connections. So now the -maxConcurrentInserts command-line option
limits the number of concurrently executed insert requests, not including idle connections.

It is recommended removing -maxConcurrentInserts command-line option, since the default value
for this option should work good for most cases.
2023-01-06 22:20:19 -08:00
Roman Khavronenko
5bdd880142
vmstorage: add more context to the flock acquiring msg (#3584)
See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3578

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

Signed-off-by: hagen1778 <roman@victoriametrics.com>
2023-01-05 18:30:42 -08:00
Aliaksandr Valialkin
1b16118e17
lib/{storage,mergeset}: tune the threshold for assisted merge
The https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3425#issuecomment-1359117221
reveals that CPU usage for incoming queries may significantly increase when the number
of in-memory parts becomes too big.

This commit reduces the maximum number of in-memory parts before starting the assisted merge
during data ingestion. This should reduce CPU usage for incoming queries,
since they need to inspect lower number of in-memory parts.

This should help https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3425
2022-12-28 14:39:24 -08:00
Aliaksandr Valialkin
4e55b67a44
lib/storage: clear the err if it is set to io.EOF when searching for the TSID by metricID
This is expected error after when recently added indexdb data isn't available for search yet
or wasn't flushed to disk after unclean shutdown of VictoriaMetrics.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3515
2022-12-20 14:05:29 -08:00
Aliaksandr Valialkin
944effca54
lib/storage: do not check for the result returned by db.doExtDB() where this isn't necessary
This simplifies the code a bit
2022-12-19 13:23:13 -08:00
Aliaksandr Valialkin
6c98b56935
lib/storage: search for TSIDs for the given metricIDs in the previous indexdb if they aren't found in the current indexdb
The issue triggers after the indexdb rotation for time series, which stop receiving new samples.
This results in missing data for such time series in query responses.

This commit should address the https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3502

The issue has been introduced in 2dd93449d8
2022-12-19 12:03:09 -08:00
Aliaksandr Valialkin
dc0b08efb0
lib/storage: optimize partSearch.searchBHS() for common case when the TSID for the current block header is bigger or equal to the current tsid
This should help improving performance at https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3425
2022-12-19 10:28:03 -08:00
Aliaksandr Valialkin
057fb2120b
lib/storage: properly set buf capacity inside marshalMetricID
Previously it was always set to 0. In theory this could result into incorrect marshaling
of metricIDs.

The issue has been introduced in 5e4dfe50c6
2022-12-19 10:14:38 -08:00
Aliaksandr Valialkin
ad8852759d
lib/storage: skip missing tsids in the current block header by using binary search
This improves performance by up to 10x when big number of the requested TSIDs
are missing in the searched parts.

This should help https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3425
2022-12-14 22:06:51 -08:00
Aliaksandr Valialkin
4de9d35458
lib/flagutil/bytes.go: properly handle values bigger than 2GiB on 32-bit architectures
This fixes handling of values bigger than 2GiB for the following command-line flags:

- -storage.minFreeDiskSpaceBytes
- -remoteWrite.maxDiskUsagePerURL
2022-12-14 19:26:31 -08:00
Aliaksandr Valialkin
0d41d933e9
lib/mergeset: reduce the parts threshold before starting assisted merges
This should improve query speed in general case.

This is a follow-up for d1af6046c7
2022-12-13 09:13:49 -08:00
Aliaksandr Valialkin
d1af6046c7
lib/{mergeset,storage}: do not block small merges by pending big merges - assist with small merges instead
Blocked small merges may result into big number of small parts, which, in turn,
may result in increased CPU and memory usage during queries, since queries need to inspect
all the existing small parts.

The issue has been introduced in 8189770c50

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3337
2022-12-12 17:00:50 -08:00
Aliaksandr Valialkin
5b9e6b9d24
lib/storage: follow-up after 7c0ae3a86a
- Update docs at https://docs.victoriametrics.com/#deduplication
- Optimize the deduplication loop a bit

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3333
2022-12-08 18:16:57 -08:00
Roman Khavronenko
7c0ae3a86a
lib/storage: keep sample with the biggest value on timestamp conflict (#3421)
The change leaves raw sample with the biggest value for identical
timestamps per each `-dedup.minScrapeInterval` discrete interval
when the deduplication is enabled.

```
benchstat old.txt new.txt
name                                         old time/op    new time/op    delta
DeduplicateSamples/minScrapeInterval=1s-10      817ns ± 2%     832ns ± 3%      ~     (p=0.052 n=10+10)
DeduplicateSamples/minScrapeInterval=2s-10     1.56µs ± 1%    2.12µs ± 0%   +35.19%  (p=0.000 n=9+7)
DeduplicateSamples/minScrapeInterval=5s-10     1.32µs ± 3%    1.65µs ± 2%   +25.57%  (p=0.000 n=10+10)
DeduplicateSamples/minScrapeInterval=10s-10    1.13µs ± 2%    1.50µs ± 1%   +32.85%  (p=0.000 n=10+10)

name                                         old speed      new speed      delta
DeduplicateSamples/minScrapeInterval=1s-10   10.0GB/s ± 2%   9.9GB/s ± 3%      ~     (p=0.052 n=10+10)
DeduplicateSamples/minScrapeInterval=2s-10   5.24GB/s ± 1%  3.87GB/s ± 0%   -26.03%  (p=0.000 n=9+7)
DeduplicateSamples/minScrapeInterval=5s-10   6.22GB/s ± 3%  4.96GB/s ± 2%   -20.37%  (p=0.000 n=10+10)
DeduplicateSamples/minScrapeInterval=10s-10  7.28GB/s ± 2%  5.48GB/s ± 1%   -24.74%  (p=0.000 n=10+10)
```

https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3333
Signed-off-by: hagen1778 <roman@victoriametrics.com>

Signed-off-by: hagen1778 <roman@victoriametrics.com>
2022-12-08 18:06:11 -08:00
Aliaksandr Valialkin
d99d222f0a
lib/{storage,mergeset}: log the duration for flushing in-memory parts on graceful shutdown 2022-12-05 21:30:48 -08:00
Aliaksandr Valialkin
8189770c50
all: add -inmemoryDataFlushInterval command-line flag for controlling the frequency of saving in-memory data to disk
The main purpose of this command-line flag is to increase the lifetime of low-end flash storage
with the limited number of write operations it can perform. Such flash storage is usually
installed on Raspberry PI or similar appliances.

For example, `-inmemoryDataFlushInterval=1h` reduces the frequency of disk write operations
to up to once per hour if the ingested one-hour worth of data fits the limit for in-memory data.

The in-memory data is searchable in the same way as the data stored on disk.
VictoriaMetrics automatically flushes the in-memory data to disk on graceful shutdown via SIGINT signal.
The in-memory data is lost on unclean shutdown (hardware power loss, OOM crash, SIGKILL).

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3337
2022-12-05 15:16:14 -08:00
Aliaksandr Valialkin
544ea89f91
lib/{mergeset,storage}: add start background workers via startBackgroundWorkers() function 2022-12-04 00:01:04 -08:00
Aliaksandr Valialkin
33dda2809b
lib/mergeset: panic when too long item is passed to Table.AddItems() 2022-12-03 23:32:16 -08:00
Aliaksandr Valialkin
932c1f90ae
lib/storage: remove duplicate logging for filepath on errors 2022-12-03 23:15:22 -08:00
Aliaksandr Valialkin
044a304adb
lib/storage: pass a single arg - rowsPerBlock - to getCompressLevel() function instead of two args 2022-12-03 23:10:16 -08:00
Aliaksandr Valialkin
cb44976716
lib/{storage,mergeset}: use a single sync.WaitGroup for all background workers
This simplifies the code
2022-12-03 23:03:08 -08:00
Aliaksandr Valialkin
28e6d9e1ff
lib/storage: properly pass retentionMsecs to OpenStorage() at TestIndexDBRepopulateAfterRotation 2022-12-03 23:02:10 -08:00
Aliaksandr Valialkin
343c69fc15
lib/{mergeset,storage}: pass compressLevel to blockStreamWriter.InitFromInmemoryPart
This allows packing in-memory blocks with different compression levels
depending on its contents. This may save memory usage.
2022-12-03 22:46:48 -08:00
Aliaksandr Valialkin
f3e3a3daeb
lib/{mergeset,storage}: take into account byte slice capacity when returning the size of in-memory part
This results in more correct reporting of memory usage for in-memory parts
2022-12-03 22:30:36 -08:00
Aliaksandr Valialkin
45299efe22
lib/{storage,mergeset}: consistency rename: `flushRaw{Rows,Items} -> flushPending{Rows,Items} 2022-12-03 22:17:46 -08:00
Aliaksandr Valialkin
5ca58cc4fb
lib/storage: optimization: do not scan block for rows outside retention if it is covered by the retention 2022-12-03 22:14:12 -08:00
Aliaksandr Valialkin
152ac564ab
lib/storage: remove logging redundant path values in a single error message 2022-12-03 22:13:13 -08:00
Aliaksandr Valialkin
05c65bd83f
lib/storage: speed up search for data block for the given tsids
Use binary search instead of linear scan for looking up the needed
data block inside index block.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3425
2022-12-03 20:58:32 -08:00
Aliaksandr Valialkin
299285b147
lib/storage: fix TestUpdateCurrHourMetricIDs test when it runs on the first hour of the day by UTC 2022-12-02 18:52:37 -08:00
Aliaksandr Valialkin
e9636b4c69
lib/{mergeset,storage}: re-use the code for removing isInMerge flag at parts
Move the common code into releasePartsToMerge() method and consistently use it throughout the code.
2022-12-02 18:52:37 -08:00
匠心零度
fa0ce10275
lib/storage: remove extra error check (#3396) 2022-11-28 16:43:31 -08:00
Aliaksandr Valialkin
daa70e6560
lib/storage: follow-up for 790768f20b
- Document the bugfix at docs/CHANGELOG.md
- Simplify the bugfix a bit
2022-11-07 14:04:08 +02:00
Aliaksandr Valialkin
f9dc3da9e2
lib/storage: typo fix after 32d48f8dfbb03174858c00bdfe6d9d22431dc8d8 2022-11-07 13:58:27 +02:00
Aliaksandr Valialkin
dd88c628aa
lib/storage: remove unused isFull field from hourMetricIDs struct 2022-11-07 13:58:26 +02:00
Łukasz Marszał
790768f20b
Fix issue-3309 - currHourMetricIDs shouldn't contain metrics from prev hour (#3320)
* fix issue-3309 currHourMetricIDs shouldn't contain metrics from prev hour

* Update storage.go
2022-11-07 13:55:37 +02:00
Aliaksandr Valialkin
c4265322f4
lib/fs: add canOverwrite arg to WriteFileAtomically when it is allowed to overwrite the file atomically if it already exists 2022-10-26 01:07:34 +03:00
Aliaksandr Valialkin
8e998aa1a1
lib/storage: add support for retention filters (aka multiple retentions for distinct sets of time series)
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/143
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/289
2022-10-24 16:40:20 +03:00
Aliaksandr Valialkin
dba218a8ce
lib/storage: skip blocks outside the configured retention during search
Blocks outside the configured retention are eventually deleted during background merge.
But such blocks may reside in the storage for long time until background merge.
Previously VictoriaMetrics could spend additional CPU time on processing such blocks
during search queries. Now these blocks are skipped.
2022-10-24 02:52:44 +03:00
Aliaksandr Valialkin
e2f0b76ebf
lib/storage: do not pass retentionMsecs and isReadOnly args explicitly - access them via Storage arg
This makes code easier to read.

This is a follow-up after d2d30581a0
2022-10-24 01:31:04 +03:00
Aliaksandr Valialkin
89a1108b1a
lib/storage: small code cleanups 2022-10-24 01:17:47 +03:00
Aliaksandr Valialkin
05512fdd74
lib/storage: re-use newTestStorage() instead of manually initializing Storage mock
This is a follow-up for d2d30581a0
2022-10-23 16:24:00 +03:00
Aliaksandr Valialkin
d2d30581a0
lib/storage: pass Storage to table and partition instead of getDeletedMetricIDs callback
This improves code readability a bit.
2022-10-23 16:10:04 +03:00
Aliaksandr Valialkin
54f35c175c
lib/storage: small refactoring: move retentionDeadline to blockStreamMerger
This allows defining per-block retention in the future by updating the getRetentionDeadline function
2022-10-23 16:10:02 +03:00
Aliaksandr Valialkin
187e294a53
lib/storage: use a single reference to the currently merged block - bsm.Block during the block merge loop 2022-10-23 14:08:57 +03:00
Aliaksandr Valialkin
d0a9ca1bc2
lib/storage: properly pass uint64 constant to fmt.Errorf on 32-bit platforms 2022-10-23 12:48:00 +03:00
Aliaksandr Valialkin
5e4dfe50c6
lib/storage: subsitute searchTSIDs functions with more lightweight searchMetricIDs function
The searchTSIDs function was searching for metricIDs matching the the given tag filters
and then was locating the corresponding TSID entries for the found metricIDs.

The TSID entries aren't needed when searching for time series names (aka MetricName),
so this commit removes the uneeded TSID search from the implementation of /api/v1/series API.
This improves perfromance of /api/v1/series calls.

This commit also improves performance a bit for /api/v1/query and /api/v1/query_range calls,
since now these calls cache small metricIDs instead of big TSID entries
in the indexdb/tagFilters cache (now this cache is named indexdb/tagFiltersToMetricIDs)
without the need to compress the saved entries in order to save cache space.

This commit also removes concurrency limiter during searching for matching time series,
which was introduced in 8f16388428, since the concurrency
for all the read queries is already limited with -search.maxConcurrentRequests command-line flag.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/648
2022-10-23 12:23:47 +03:00
Aliaksandr Valialkin
4128ad71e2
lib/storage: move common code to newRawRowsBlock() function 2022-10-21 14:46:55 +03:00
Aliaksandr Valialkin
b5674164c6
lib/storage: simplify code a bit after 3f5959c053 2022-10-21 14:39:27 +03:00
Aliaksandr Valialkin
fd7c86ae25
lib/{mergeset,storage}: simplify the code a bit after ae55ad8749 2022-10-21 14:33:03 +03:00
Aliaksandr Valialkin
99d67ac8ad
lib/storage: validate timestamps in the block only if they use encoding, which needs validation
This reduces CPU usage when there is no sense in validating timestamps.

This is a follow-up for 5fa9525498

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2998
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3011
2022-10-21 00:52:32 +03:00
Aliaksandr Valialkin
3f5959c053
lib/storage: try generating initial parts from inmemory rows with identical sizes under high ingestion rate
This should improve background merge rate under high load a bit
2022-10-20 23:28:24 +03:00
Aliaksandr Valialkin
150e99d403
lib/{mergeset,storage}: avoid unaligned 64-bit atomic operation panic on 32-bit platforms
The panic has been introduced in 68f3a02589

While at it, add padding to shard structs in order to avoid false sharing on mordern CPUs

This should improve scalability on systems with many CPU cores
2022-10-20 16:25:43 +03:00
Aliaksandr Valialkin
fb50730ba7
lib/storage: double the number of rawRows shards on multi-core systems
This should increase data ingestion scalability on multi-core systems at the cost of slightly higher memory usage
2022-10-17 18:19:51 +03:00
Aliaksandr Valialkin
ae55ad8749
lib/{storage,mergeset}: do not hold per-shard lock in fast path when adding per-shard items to the flush list 2022-10-17 18:01:26 +03:00
Aliaksandr Valialkin
db16759c68
lib/storage: optimize matching speed for non-trivial regexp filters
Wrap re.Match into bytesutil.FastStringMatcher.

This increases performance for `{foo=~"complex_regex_here"}` filters
by up to 4x.
2022-10-01 12:06:06 +03:00
Aliaksandr Valialkin
042a532f70
lib/storage: substitute remaining calls to fs.MustRemoveAll with fs.MustRemoveDirAtomic
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3038
2022-09-13 16:17:38 +03:00
Aliaksandr Valialkin
68e32b0764
lib/storage: atomically remove parts inside partitions
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3038
2022-09-13 16:17:38 +03:00
Aliaksandr Valialkin
340ada871d
lib/storage: atomically remove partitions, which went outside the configured retention
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3038
2022-09-13 16:17:37 +03:00
Aliaksandr Valialkin
978dcb4574
lib/storage: properly remove cache directory contents if reset_cache_on_startup file is located there
Previously the cache directory was removed. This could result in error when the cache directory
is mounted to a separate filesystem.
2022-09-13 16:17:36 +03:00
Aliaksandr Valialkin
5f28ca1f42
lib/storage: atomically remove snapshot directories
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3038
2022-09-13 16:17:36 +03:00
Aliaksandr Valialkin
5fa9525498
lib/storage: verify that timestamps in block are in the range specified by blockHeader.{Min,Max}Timestamp when upacking the block
This should reduce chances of unnoticed on-disk data corruption.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2998
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3011

This change modifies the format for data exported via /api/v1/export/native -
now this data contains MaxTimestamp and PrecisionBits fields from blockHeader.

This is OK, since the native export format is undocumented.
2022-09-06 13:08:09 +03:00
Aliaksandr Valialkin
0ad3bbadd3
lib/regexutil: add Simplify() function for simplifying the regular expression 2022-08-26 11:57:12 +03:00
Aliaksandr Valialkin
0d4ea03a73
lib/promrelabel: optimize action: {labeldrop,labelkeep,keep,drop} with regex containing alternate values
For example, the following relabeling rule must work much faster now:

- action: labeldrop
  regex: "foo|bar|baz"
2022-08-24 17:54:29 +03:00
Aliaksandr Valialkin
0d46e24af5
lib/storage: increase the maximum possible or values extracted from regexp from 20 to 100
This should improve time series search speed for regexp filters with big number of `or` values.
2022-08-24 17:15:25 +03:00
Aliaksandr Valialkin
fdbf5b5795
lib/storage: ignore start text and end text anchors in getOrValues(regexp) function
This is OK, since the anchors are implicitly applied to the whole regexp.
This optimization should improve the speed for regexp series filters with explicit $ and ^ anchors.
For example, `{label="^(foo|bar)$"}`
2022-08-24 17:12:52 +03:00
Aliaksandr Valialkin
796aa310c2
app/vmstorage: expose vm_{hourly,daily}_series_limit_{max,current}_series metrics if -storage.max{Hourly,Daily}Series limits are set
These metrics allow alerting when the number of unique series approach the limit.
For example, the following query alerts when the number of series reaches 90% of the configured limit:

    vm_hourly_series_limit_current_series / vm_hourly_series_limit_max_series > 0.9
2022-08-24 13:44:04 +03:00
Aliaksandr Valialkin
1f89278d88
all: subsitute ioutil.ReadAll with io.ReadAll
ioutil.ReadAll is deprecated since Go1.16 - see https://tip.golang.org/doc/go1.16#ioutil
VictoriaMetrics requires at least Go1.18, so it is OK to switch from ioutil.ReadAll to io.ReadAll.

This is a follow-up for 02ca2342ab
2022-08-22 00:16:37 +03:00
Aliaksandr Valialkin
9f94c295ab
all: use os.{Read|Write}File instead of ioutil.{Read|Write}File
The ioutil.{Read|Write}File is deprecated since Go1.16 -
see https://tip.golang.org/doc/go1.16#ioutil

VictoriaMetrics needs at least Go1.18, so it is safe to remove ioutil usage
from source code.

This is a follow-up for 02ca2342ab
2022-08-21 23:52:35 +03:00
Roman Khavronenko
d59d829cdb
lib/storage: bump max merge concurrency for small parts to 15 (#2997)
* lib/storage: bump max merge concurrency for small parts to 15

The change is based on the feedback from users on github.
Thier examples show, that limit of 8 sometimes become a
bottleneck. Users report that without limit concurrency
can climb up to 15-20 merges at once.

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

* Update lib/storage/partition.go

Signed-off-by: hagen1778 <roman@victoriametrics.com>
Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
2022-08-21 23:32:08 +03:00
Roman Khavronenko
31f922944e
lib/storage: fix the search for empty label name (#2991)
* lib/storage: fix the search for empty label name

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

* Apply suggestions from code review

Signed-off-by: hagen1778 <roman@victoriametrics.com>
Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
2022-08-17 21:32:25 +03:00
Aliaksandr Valialkin
b0e1bb517e
lib/storage: typo fix in comments after f830edc0bc 2022-08-16 13:44:45 +03:00
Aliaksandr Valialkin
f830edc0bc
lib/storage: improve performance for /api/v1/labels and /api/v1/label/.../values endpoints when match[] filter matches small number of time series
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2978
2022-08-16 13:32:40 +03:00
Roman Khavronenko
a0e7432e42
lib/storage: prevent excessive loops when storage is in RO (#2962)
* lib/storage: prevent excessive loops when storage is in RO

Returning nil error when storage is in RO mode results
into excessive loops and function calls which could
result into CPU exhaustion. Returning an err instead
will trigger delays in the for loop and save some resources.

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

* document the change

Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
2022-08-09 12:17:00 +03:00
Aliaksandr Valialkin
5a4c58f9a2
lib/storage: explain why the GetOrCreateTSIDByName function doesnt check whether the per-day entry for the given date exists if TSID is found in global index 2022-08-02 09:12:29 +03:00
Aliaksandr Valialkin
78520f2702
lib/storage: do not compress small number of tsids when storing them in tagFiltersCache
This speeds up tsids retreival from the cache for 0-2 tsids
2022-07-30 00:08:51 +03:00
guidao
91faa152a5
add next retention metric (#2863)
Co-authored-by: wangfeng <wangfeng@zhihu.com>
2022-07-13 12:37:04 +03:00
Aliaksandr Valialkin
5c8eee26bf
all: make fmt via the upcoming Go1.19 2022-07-11 19:22:15 +03:00
Aliaksandr Valialkin
77cbbacfdb
lib/vmselectapi: pass storage.SearchQuery to API calls instead of []*storage.TagFilters + storage.TimeRange + maxMetrics
This reduces the number of args to vmselectapi calls
2022-07-06 12:37:54 +03:00
Aliaksandr Valialkin
e1b8059086
lib/vmselectapi: rename deleteMetrics to more correct deleteSeries 2022-07-06 12:37:54 +03:00
Aliaksandr Valialkin
a60e03b3a7
lib/vmselectapi: use string type for tagKey and tagValuePrefix args at TagValueSuffixes()
This improves the API consistency
2022-07-06 12:37:53 +03:00
Aliaksandr Valialkin
edc76286ac
lib/storage: put the (date, metricID) entry in dateMetricIDCache just after the corresponding series is registered in the per-day inverted index
Previously the time series could be put into dateMetricIDCache without
registering in the per-day inverted index if GetOrCreateTSIDByName
finds TSID entry in the global index. This could lead to missing
series in query results.

The issue has been introduced in the commit 55e7afae3a,
which has been included in VictoriaMetrics v1.78.0
2022-07-05 14:54:03 +03:00
Aliaksandr Valialkin
3e2dd85f7d
all: readability improvements for query traces
- show dates in human-readable format, e.g. 2022-05-07, instead of a numeric value
- limit the maximum length of queries and filters shown in trace messages
2022-06-30 18:20:33 +03:00
Aliaksandr Valialkin
a350d1e81c
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 18:17:15 +03:00
Aliaksandr Valialkin
2c836bd398
lib/storage: put into query trace the number of found entries in SearchMetricNames 2022-06-28 14:50:53 +03:00
Aliaksandr Valialkin
e578549b8a
app/vmselect: optimize /api/v1/series a bit for time ranges smaller than one day 2022-06-28 13:02:47 +03:00
Aliaksandr Valialkin
a963b2a0aa
all: show timeRange in traces in human-readable format instead of timestamps in milliseconds 2022-06-27 13:45:51 +03:00
Aliaksandr Valialkin
ba514284f1
lib/storage: add querytracer to more contexts
querytracer has been added to the following storage.Storage methods:
- RegisterMetricNames
- DeleteMetrics
- SearchTagValueSuffixes
- SearchGraphitePaths
2022-06-27 13:45:51 +03:00
Aliaksandr Valialkin
134751e43e
all: locate throttled loggers via logger.WithThrottler() only once and then use them
This reduces the contention on logThrottlerRegistryMu mutex when logger.WithThrottler()
is called frequently from concurrent goroutines.
2022-06-27 13:45:50 +03:00
Aliaksandr Valialkin
b958fc7846
lib/storage: properly take into account already registered series when -storage.maxHourlySeries or -storage.maxDailySeries limits are enabled
The commit 5fb45173ae takes into account only newly registered series
when applying cardinality limits. This means that the cardinality limit could be exceeded with already registered series.
This commit returns back accounting for already registered series when applying cardinality limits.
2022-06-20 13:47:47 +03:00
Aliaksandr Valialkin
55e7afae3a
lib/storage: create per-day indexes together with global indexes when registering new time series
Previously the creation of per-day indexes and global indexes
for the newly registered time series was decoupled.

Now global indexes and per-day indexes for the current day are created toghether for new time series.
This should speed up registering new time series a bit.
2022-06-19 22:42:10 +03:00
Aliaksandr Valialkin
5fb45173ae
lib/storage: do not register new series if -storage.maxHourlySeries or -storage.maxDailySeries limits are exceeded
Previously samples for new series weren't added as expected when series limits were reached,
but new series were still registered in indexdb.
2022-06-19 22:42:09 +03:00
Aliaksandr Valialkin
62e2371a67
lib/storage: reset metric id caches for the previous and the current hour
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2698
2022-06-19 22:42:09 +03:00
Aliaksandr Valialkin
ec7963208d
app/vmselect: accept focusLabel query arg at /api/v1/status/tsdb
This allows filling the seriesCountByFocusLabelValue list in the /api/v1/status/tsdb response
with label values for the specified focusLabel, which contain the highest number of time series.

TODO: add this to Cardinality explorer at VMUI - https://docs.victoriametrics.com/#cardinality-explorer
2022-06-14 18:36:54 +03:00
Aliaksandr Valialkin
b6c1ca12b7
lib/storage: show top labels with the highest number of series in cardinality explorer 2022-06-14 16:32:38 +03:00
Aliaksandr Valialkin
a75e59700f
lib/storage: improve error message when -search.max* command-line flag values are exceeded 2022-06-14 13:27:59 +03:00
Aliaksandr Valialkin
52cf05c6d2
lib/storage: test GetTSDBStatusWithFiltersForDate on a global time range 2022-06-12 14:27:40 +03:00
Aliaksandr Valialkin
374beb350e
app/vmselect: optimize /api/v1/labels and /api/v1/label/.../values handlers when match[] query arg is passed to them 2022-06-12 04:32:13 +03:00
Aliaksandr Valialkin
2bcb960f17
all: improve query tracing coverage for indexdb search
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1403
2022-06-09 20:07:07 +03:00
Aliaksandr Valialkin
12ac255dae
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 21:06:52 +03:00
Dmytro Kozlov
018d2303c4
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 18:43:05 +03:00
Roman Khavronenko
1ee1e986da
lib/storage: limit max mergeConcurrency value for systems with high number of CPUs (#2673)
Workers count for merges affects the max part size during merges. Such behaviour
protects storage from running out of disk space for scenario when all workers
are merging parts with the max size.

This works very well for most cases. But for systems where high number of CPUs
is allocated for vmstorage components this could significantly impact the max
part size and result in more unmerged parts than expected.

While checking multiple production highly loaded setups it was discovered that
`max_over_time(vm_active_merges{type="storage/big}[1h]}"` rarely exceeds 2,
and `max_over_time(vm_active_merges{type="storage/small}[1h]}"` rarely exceeds 4.
The change in this commit limits the max value for concurrency accordingly.

Signed-off-by: hagen1778 <roman@victoriametrics.com>
2022-06-07 14:55:09 +03:00
Aliaksandr Valialkin
ea06d2fd3c
lib/storage: stop background merge when storage enters read-only mode
This should prevent from `no space left on device` errors when VictoriaMetrics
under-estimates the additional disk space needed for background merge.

See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2603
2022-06-01 14:36:45 +03:00
Roman Khavronenko
642eb1c534
lib/storage: make indexdb/tagFilters cache size configurable (#2667)
The default size of `indexdb/tagFilters` now can be overridden via
`storage.cacheSizeIndexDBTagFilters` flag.
Please, be careful with changing default size since it may
lead to inefficient work of the vmstorage or OOM exceptions.

https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2663
Signed-off-by: hagen1778 <roman@victoriametrics.com>

Co-authored-by: Nikolay <nik@victoriametrics.com>
2022-06-01 10:07:53 +02:00
Aliaksandr Valialkin
41958ed5dd
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 02:29:23 +03:00
Aliaksandr Valialkin
a1add5c2c7
lib/storage: make fmt 2022-05-31 12:54:37 +03:00
Aliaksandr Valialkin
bac75ea8a2
lib/storage: do not take into account series from the next day when match[] filter is passed to /api/v1/status/tsdb 2022-05-31 12:15:26 +03:00
Aliaksandr Valialkin
f6d11a49aa
lib/storage: add ability to change the indexdb rotation time offset with -retentionTimezoneOffset command-line flag
This is a follow-up for 0fbf59199a

See https://github.com/VictoriaMetrics/VictoriaMetrics/pull/2574
2022-05-25 16:05:29 +03:00
阳明
0fbf59199a
lib/storage: Remove the effect of time zone on next retention period (#2568) (#2574) 2022-05-25 15:08:24 +03:00
Dmytro Kozlov
7dd9f3b98e
{vmbackup, vmbackup/snapshot}: fixed problem with snapshot backup in another snapshot folder (#2535)
* {vmbackup, vmbackup/snapshot}: validate snapshot name

* vmbackup/snapshot: added another checks

* backup/actions: added check that we ignore backup_complete.ignore file

* vmbackup: moved snapshot to lib directory

* lib/snapshot: added functions description

* lib/snapshot: fixed typo

* vmbackup: code cleanup

* wip

Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
2022-05-04 22:12:03 +03:00
Aliaksandr Valialkin
0d86644d65
lib/storage: leave the last sample per each discrete interval during the deduplicaton
This aligns better with staleness logic in Prometheus - https://prometheus.io/docs/prometheus/latest/querying/basics/#staleness
2022-05-02 21:50:45 +03:00
Artem Navoiev
37cf509c3a
lib/{storage,flagutil} - Add option for snapshot autoremoval (#2487)
* lib/{storage,flagutil} - Add option for snapshot autoremoval

- add prometheus-like duration as command flag
- add option to delete stale snapshots
- update duration.go flag to re-use own code

* wip

* lib/flagutil: re-use Duration.Set() call in NewDuration

* wip

Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
2022-05-02 11:00:15 +03:00
Aliaksandr Valialkin
54de0531a4
app/vmstorage: properly handle maxSeries limit passed from vmselect to vmstorage 2022-04-12 11:23:04 +03:00
Aliaksandr Valialkin
57143e9435
lib/storage: increase the number of rawRowsShard shards on systems with more than 4 CPU cores
This should improve data ingestion scalability on systems with many CPU cores
2022-04-06 19:49:20 +03:00
Aliaksandr Valialkin
50cf74ce4b
lib/storage: reuse sync.WaitGroup objects
This reduces GC load by up to 10% according to memory profiling
2022-04-06 13:34:04 +03:00
Nikolay
9a88c1a91e
lib/{storage,regexpcache}: replaces regexpCacheMap with LRU cache (#2293)
* lib/{storage,regexpcache}: replaces regexpCacheMap with LRU cache

It should decrease memory usage for regexp caching
with storing cacheEntry by pointer - golang map should be able to effectivly shrink it's size
original issue with this case - unexpected map grows and storage OOM

Apply suggestions from code review

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

Adds missing metrics for regexp cache and regexpPrefixes cache

* wip

* wip

Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
2022-03-26 12:54:50 +02:00
Aliaksandr Valialkin
6e364e19ef
app/vmselect: add fine-grained limits for the number of returned/scanned time series for various APIs 2022-03-26 11:29:49 +02:00
Aliaksandr Valialkin
2ae3a9a8a3
lib/storage: reduce the interval for checking for free disk space from 30 seconds to 1 second
This should reduce the probability of out of disk space panics when -storage.minFreeDiskSpaceBytes is set to low values.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2305
2022-03-18 16:52:27 +02:00
jduncan0000
e5868b9c29
Fix for issue #2255 - matchTagFilters for positive empty-match filters (#2304)
* fix for issue 2255 - matchTagFilters for positive empty-match filters

* add example to comments

* formatting

* add test for positive empty match

* formatting
2022-03-18 12:58:22 +02:00
Aliaksandr Valialkin
3eef1ddc7d
lib/storage: trashing -> thrashing typo in docs
This is a follow-up for 918ed5cb32
2022-03-16 13:05:26 +02:00
Aliaksandr Valialkin
59877d9f32
lib/{mergeset,storage}: tune compression levels for small blocks
This should reduce CPU usage spent on compression
2022-02-25 15:33:40 +02:00
Aliaksandr Valialkin
7e99bbb967
lib/storage: document why job-like and instance-like labels must be stored at mn.Tags[0] and mn.Tags[1]
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2244
2022-02-25 13:21:07 +02:00
Aliaksandr Valialkin
8bf3fb917a
lib/storage: add a comment to indexSearch.containsTimeRange() on why it allows false positives
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2239
2022-02-24 12:47:27 +02:00
Aliaksandr Valialkin
a16f1ae565
lib/storage: properly handle series selector matching multiple metric names plus a negative filter
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2238

This is a follow-up for 00cbb099b6
2022-02-24 12:15:54 +02:00
Aliaksandr Valialkin
62b46007c5
lib/workingsetcache: reduce the default cache rotation period from hour to 20 minutes
This should reduce memory usage under high time series churn rate
2022-02-23 13:41:45 +02:00
Aliaksandr Valialkin
f72b35665f
lib/storage: optimize /api/v1/status/tsdb call by skipping all the artificially created tag entries at once
This is a follow-up for b71be42d90
2022-02-21 18:23:35 +02:00
Roman Khavronenko
b6ed9afd6d
lib: allow to configure cache size by type (#2206)
* lib: allow to configure cache size by type

https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1940
Signed-off-by: hagen1778 <roman@victoriametrics.com>

* Apply suggestions from code review

* wip

Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
2022-02-21 13:50:34 +02:00
Aliaksandr Valialkin
2b87b4d183
lib/storage: typo fix after c3affb0c4f 2022-02-17 12:55:54 +02:00
Aliaksandr Valialkin
c3affb0c4f
lib/storage: simplify code for searching for label values
This is a follow-up after 9dd191b27c
2022-02-17 12:29:38 +02:00
Aliaksandr Valialkin
9dd191b27c
lib/storage: properly skip composite tag entries when searching for tag names or tag values
This is a follow-up for b71be42d90

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2200
2022-02-16 23:01:19 +02:00
Aliaksandr Valialkin
6ff71474a6
lib/storage: document why tsid cache is reset before saving it to disk
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2205
2022-02-16 18:37:56 +02:00
Aliaksandr Valialkin
b71be42d90
lib/storage: use binary search instead of full scan for skipping artificial tags when searching for tag names or tag values
This should improve performance for /api/v1/labels and /api/v1/label/<label_name>/values

See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2200
2022-02-16 18:15:41 +02:00
Aliaksandr Valialkin
96dce63dbd
lib/storage: tune the logic for pre-populating of the per-day inverted index for the next day
- Postpone the pre-poulation to the last hour of the current day. This should reduce the number
  of useless entries in the next per-day index, which shouldn't be created there,
  when the corresponding time series are stopped to be pushed during the current day.

- Make the pre-population more smooth in time by using the hash of MetricID instead of MetricID itself
  when calculating the need for for the given MetricID pre-population.

- Sync the logic for pre-population of the next day inverted index with the logic of pre-populating tsid cache
  after indexdb rotation. This should improve code maintainability.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/430
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1401
2022-02-12 16:33:16 +02:00
Roman Khavronenko
cf1a8bce6b
lib/index: reduce read/write load after indexDB rotation (#2177)
* lib/index: reduce read/write load after indexDB rotation

IndexDB in VM is responsible for storing TSID - ID's used for identifying
time series. The index is stored on disk and used by both ingestion and read path.

IndexDB is stored separately to data parts and is global for all stored data.
It can't be deleted partially as VM deletes data parts. Instead, indexDB is
rotated once in `retention` interval.

The rotation procedure means that `current` indexDB becomes `previous`,
and new freshly created indexDB struct becomes `current`. So in any time,
VM holds indexDB for current and previous retention periods.
When time series is ingested or queried, VM checks if its TSID is present
in `current` indexDB. If it is missing, it checks the `previous` indexDB.
If TSID was found, it gets copied to the `current` indexDB. In this way
`current` indexDB stores only series which were active during the retention
period.

To improve indexDB lookups, VM uses a cache layer called `tsidCache`. Both
write and read path consult `tsidCache` and on miss the relad lookup happens.

When rotation happens, VM resets the `tsidCache`. This is needed for ingestion
path to trigger `current` indexDB re-population. Since index re-population
requires additional resources, every index rotation event may cause some extra
load on CPU and disk. While it may be unnoticeable for most of the cases,
for systems with very high number of unique series each rotation may lead
to performance degradation for some period of time.

This PR makes an attempt to smooth out resource usage after the rotation.
The changes are following:
1. `tsidCache` is no longer reset after the rotation;
2. Instead, each entry in `tsidCache` gains a notion of indexDB to which
they belong;
3. On ingestion path after the rotation we check if requested TSID was
found in `tsidCache`. Then we have 3 branches:
3.1 Fast path. It was found, and belongs to the `current` indexDB. Return TSID.
3.2 Slow path. It wasn't found, so we generate it from scratch,
add to `current` indexDB, add it to `tsidCache`.
3.3 Smooth path. It was found but does not belong to the `current` indexDB.
In this case, we add it to the `current` indexDB with some probability.
The probability is based on time passed since the last rotation with some threshold.
The more time has passed since rotation the higher is chance to re-populate `current` indexDB.
The default re-population interval in this PR is set to `1h`, during which entries from
`previous` index supposed to slowly re-populate `current` index.

The new metric `vm_timeseries_repopulated_total` was added to identify how many TSIDs
were moved from `previous` indexDB to the `current` indexDB. This metric supposed to
grow only during the first `1h` after the last rotation.

https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1401

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

* wip

* wip

Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
2022-02-12 00:30:08 +02:00
Aliaksandr Valialkin
08428464e9
lib/storage: fix broken BenchmarkHeadPostingForMatchers for {i=~".*"} after f4dead529f
The commit f4dead529f makes such query to return nothing instead of all the time series.
This aligns more with Prometheus behaviour.
2022-02-12 00:27:10 +02:00
Roman Khavronenko
e3adcbec6e
lib/promscrape: support prometheus-like duration in scrape configs (#2169)
* lib/promscrape: support prometheus-like duration in scrape configs

The change allows to specify duration values like `1d`, `1w`
for fields `scrape_interval`, `scrape_timeout`, etc.

https://github.com/VictoriaMetrics/VictoriaMetrics/issues/817#issuecomment-1033384766
Signed-off-by: hagen1778 <roman@victoriametrics.com>

* lib/blockcache: make linter happy

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

* lib/promscrape: support prometheus-like duration in scrape configs

* add support for extra fields `scrape_align_interval` and `scrape_offset`;
* support Prometheus duration parsing for `__scrape_interval__`
and `__scrape_duration__` labels;

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

* wip

* wip

* docs/CHANGELOG.md: document the feature

Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
2022-02-11 16:17:00 +02:00
Aliaksandr Valialkin
4bdd10ab90
lib/bytesutil: split Resize* funcs to MayOverallocate and NoOverallocate for more fine-grained control over memory allocations
Follow-up for f4989edd96

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2007
2022-02-01 00:18:42 +02:00
Aliaksandr Valialkin
a8509c112a
lib/storage: avoid allocations of tsidPrev on every blockStreamReader.NextBlock() call
This is a follow-up for 00b7c97d2a

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2082
2022-01-31 22:46:53 +02:00
Aliaksandr Valialkin
96aa3761fc
lib/storage/table.go: add missing tb.ptwsLock.Unlock() before the return
This is a follow-up for a1083d0531

See https://github.com/VictoriaMetrics/VictoriaMetrics/pull/2103
2022-01-28 14:15:42 +02:00
匠心零度
1999bbfe82
optimized code (#2103)
* optimized code ,because only the first error,so no need var errors []error

* optimized code ,because only the first error,so no need var errors []error

Co-authored-by: lirenzuo <lirenzuo@shein.com>
2022-01-28 14:15:41 +02:00
Aliaksandr Valialkin
f4989edd96
lib/bytesutil: split Resize() into ResizeNoCopy() and ResizeWithCopy() functions
Previously bytesutil.Resize() was copying the original byte slice contents to a newly allocated slice.
This wasted CPU cycles and memory bandwidth in some places, where the original slice contents wasn't needed
after slize resizing. Switch such places to bytesutil.ResizeNoCopy().

Rename the original bytesutil.Resize() function to bytesutil.ResizeWithCopy() for the sake of improved readability.

Additionally, allocate new slice with `make()` instead of `append()`. This guarantees that the capacity of the allocated slice
exactly matches the requested size. The `append()` could return a slice with bigger capacity as an optimization for further `append()` calls.
This could result in excess memory usage when the returned byte slice was cached (for instance, in lib/blockcache).

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2007
2022-01-25 15:24:44 +02:00
Aliaksandr Valialkin
ede93469ea
lib/mergeset: tune caches size limits for indexdb/dataBlocks and indexdb/indexBlocks
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2007
2022-01-21 12:45:43 +02:00
Aliaksandr Valialkin
5f84b17ed6
lib/storage: properly limit cardinality when ingesting multiple samples for the same time series in a single request 2022-01-21 12:38:09 +02:00
Aliaksandr Valialkin
00b7c97d2a
lib/storage: verify that blocks in a single part are sorted by TSID when reading sequential blocks from the part
This may help narrowing down the issue https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2082
2022-01-20 20:36:37 +02:00
Aliaksandr Valialkin
ea87f21e23
lib/storage: set bsm.Block to nil on error, so the previous block couldn't be used.
This may help nailing down the issue https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2082
2022-01-20 20:13:14 +02:00
Aliaksandr Valialkin
145337792d
lib/{mergeset,storage}: properly limit cache sizes for indexdb
Previously these caches could exceed limits set via `-memory.allowedPercent` and/or `-memory.allowedBytes`,
since limits were set independently per each data part. If the number of data parts was big, then limits could be exceeded,
which could result to out of memory errors.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2007
2022-01-20 18:37:17 +02:00
Aliaksandr Valialkin
178dd87e26
lib/storage: follow-up for 38bf5fc136 2022-01-05 16:00:11 +02:00
weng zhao
38bf5fc136
vmstorage: fix query like {foo=~"bar|"} return extra timeseries cause by negative filter transformation malfunction (#2032)
1. L2749 make kb.B remain the value of comonPrefix instead of tf.prefix
2. L2762 avoid change tf.value from "bar|" to ".+r|"
2022-01-05 15:59:15 +02:00
Nikolay
8ff7da7202
adds restore.lock (#1988)
* adds restore.lock
it must prevent from running storage after incomplete restore process
https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1958

* return back flock file deletion

* Apply suggestions from code review

* wip

* docs/CHANGELOG.md: document https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1958

Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
2021-12-22 13:10:15 +02:00
Aliaksandr Valialkin
ce333f28d8
all: use logger.WithThrottler() where appropriate 2021-12-21 17:03:25 +02:00
Aliaksandr Valialkin
afafeb379a
all: typo fix: unexected -> unexpected 2021-12-20 17:39:52 +02:00
Aliaksandr Valialkin
8a7f08ded3
lib/storage: properly update per-part min_dedup_interval file contents after merge
Previously 0s was always written even if -dedup.minScrapeInterval was set to non-zero value

This is a follow-up for 4ff647137a
2021-12-17 20:13:24 +02:00
Aliaksandr Valialkin
4ff647137a
lib/storage: deduplicate samples more thoroughly
Previously some duplicate samples may be left on disk for time series with high churn rate.
This may result in higher disk space usage.
2021-12-15 15:59:58 +02:00
Aliaksandr Valialkin
92070cbb67
lib/storage: return dedup interval in milliseconds from GetDedupInterval()
This removes duplicate .Milliseconds() calls after GetDedupInterval() calls.
2021-12-15 13:26:38 +02:00
Aliaksandr Valialkin
1d20a19c7d
lib/storage: explicitly pass dedupInterval to DeduplicateSamples() and deduplicateSamplesDuringMerge()
This improves the code readability and debuggability, since the output of these functions
stops depending on global state.
2021-12-14 20:49:12 +02:00
Aliaksandr Valialkin
e1a715b0f5
lib/storage: convert alternate regexps into Graphite wildcards inside __graphite__ pseudo-label
For example, `{__graphite__=~"foo.(bar|baz)"}` is automatically converted to `{__graphite__=~"foo.{bar,baz}"}` before execution.
This allows using multi-value Grafana template variables such as `{__graphite__=~"foo.($app)"}`.
2021-12-14 19:51:49 +02:00
Aliaksandr Valialkin
45d082bbe2
app/vminsert: add -maxLabelValueLen command-line flag
See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1908
2021-12-06 11:40:34 +02:00
Aliaksandr Valialkin
7275ebf91a
app/vmstorage: export vm_cache_size_max_bytes metrics for determining capacity of various caches
The vm_cache_size_max_bytes metric can be used for determining caches which reach their capacity via the following query:

   vm_cache_size_bytes / vm_cache_size_max_bytes > 0.9
2021-12-02 10:30:43 +02:00
Aliaksandr Valialkin
2fb5a6ca78
lib/storage: do not take into account -storage.minFreeDiskSpaceBytes during background merges 2021-12-01 11:02:36 +02:00
Aliaksandr Valialkin
d666755159
lib/storage: take into account -storage.minFreeDiskSpaceBytes when performing big merges
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/269
2021-11-30 12:56:35 +02:00
Aliaksandr Valialkin
53bb58ed2a
lib/storage: log a warning when the -storageDataPath has less than -storage.minFreeDiskSpaceBytes
This should improve the debuggability of the readonly feature.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1727
2021-10-19 23:59:13 +03:00
Aliaksandr Valialkin
001750c239
lib/storage: fix unaligned access on 32-bit architectures.
The bug has been introduced at a171916ef5
2021-10-08 19:43:03 +03:00
Aliaksandr Valialkin
cf5cbd1c70
app/{vminsert,vmstorage}: follow-up after a171916ef5
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/269
2021-10-08 14:35:49 +03:00
Nikolay
4290b46e8c
Adds read-only mode for vmstorage node (#1680)
* adds read-only mode for vmstorage
https://github.com/VictoriaMetrics/VictoriaMetrics/issues/269

* changes order a bit

* moves isFreeDiskLimitReached var to storage struct
renames functions to be consistent
change protoparser api - with optional storage limit check for given openned storage

* renames freeSpaceLimit to ReadOnly
2021-10-08 14:35:48 +03:00
Aliaksandr Valialkin
718eca33ab
lib/storage: properly handle {__name__=~"prefix(suffix1|suffix2)",other_label="..."} queries
They were broken in the commit 00cbb099b6

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1644
2021-09-23 21:48:51 +03:00
Aliaksandr Valialkin
8f685d81c6 lib/storage: follow up after 00cbb099b6 2021-09-14 14:16:25 +03:00
faceair
00cbb099b6
lib/storage: optimize convert multiple values regexp filter to composite tag filter (#1610)
* lib/storage: optimize convert multiple values regexp filter to composite tag filter

* Apply suggestions from code review

Co-authored-by: Aliaksandr Valialkin <valyala@gmail.com>
2021-09-14 12:47:07 +03:00
Aliaksandr Valialkin
cebcb15ba4 lib/storage: verify that the tsidsFound contain the needed tsids in tests added at f4dead529f 2021-09-11 10:57:13 +03:00
Aliaksandr Valialkin
f4dead529f lib/storage: properly search series by multiple tag filters matching empty labels such as foo{bar=~"baz|",x=~"y|"}
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1601
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/395
2021-09-09 21:09:21 +03:00
Aliaksandr Valialkin
f77dde837a lib/promscrape: add the ability to limit the number of unique series per each scrape target
The number of series per target can be limited with the following options:

* Global limit with `-promscrape.maxSeriesPerTarget` command-line option.
* Per-target limit with `max_series: N` option in `scrape_config` section.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1561
2021-09-01 16:03:59 +03:00
Aliaksandr Valialkin
ffc0ab1774 lib/{mergeset,storage}: improve the detection of the needed free space for background merge
This should prevent from possible out of disk space crashes during big merges.

See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1560
2021-08-25 09:35:44 +03:00
Aliaksandr Valialkin
4401464c22 all: add support for Prometheus staleness markers
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1526
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/748
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1509
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1530
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/845
2021-08-13 12:10:17 +03:00
Aliaksandr Valialkin
d05cac6c98 li/storage: re-use the per-day inverted index search code for searching in global index
This allows removing a big pile of outdated code for global index search.

This may help https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1486
2021-07-30 10:31:37 +03:00
Aliaksandr Valialkin
8ee8660ac4 app/vmselect: follow-up for 626073bca8
* Rename -search.maxMetricsPointSearch to -search.maxSamplesPerQuery, so it is more consistent with the existing -search.maxSamplesPerSeries
* Move the -search.maxSamplesPerQuery from vmstorage to vmselect, so it could effectively limit the number of raw samples obtained from all the vmstorage nodes
* Document the -search.maxSamplesPerQuery in docs/CHANGELOG.md
2021-07-28 18:00:23 +03:00
Aliaksandr Valialkin
c2deee9911 lib/storage: yet another attempt to properly determine disk space shortage, which prevents from optimal merges
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1373
2021-07-27 12:04:50 +03:00
Aliaksandr Valialkin
d472b03e34 lib/storage: make sure the second call to DeduplicateSamples and deduplicateSamplesDuringMerge doesnt change samples 2021-07-15 12:17:45 +03:00
Aliaksandr Valialkin
682662b2ae lib/storage: remove cache directory if it contains reset_cache_on_startup file
See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1447
2021-07-13 17:58:51 +03:00
Aliaksandr Valialkin
4f80b2f230 lib/storage: properly limit the size of storage/date_metricID cache 2021-07-12 14:25:44 +03:00
Aliaksandr Valialkin
8ca2799478 lib/storage: properly determine when the deduplication is needed in needsDedup
Previously needsDedup() could return true if the de-duplication wasn't needed for the following case:

         d < interval
           /     \
   |        v | v        |
     interval   interval

Now it properly returns false for this case
2021-07-12 10:53:30 +03:00
Aliaksandr Valialkin
8b262d4ba7 lib/storage: periodically reset prefetchedMetricIDs cache in order to limit its size under high churn rate 2021-07-07 10:58:51 +03:00
Aliaksandr Valialkin
a7694092b8 Revert "lib/uint64set: allow reusing bucket16 structs inside uint64set.Set via uint64set.Release method"
This reverts commit 7c6d3981bf.

Reason for revert: high contention at bucket16Pool on systems with big number of CPU cores.
This slows down query processing significantly.
2021-07-06 18:21:35 +03:00
Aliaksandr Valialkin
8aa9bba9bd lib/{mergeset,storage}: switch from sync.Pool to chan-based pool for inmemoryPart objects
This should reduce memory usage on systems with big number of CPU cores,
since every inmemoryPart object occupies at least 64KB of memory and sync.Pool maintains
a separate pool inmemoryPart objects per each CPU core.

Though the new scheme for the pool worsens per-cpu cache locality, this should be amortized
by big sizes of inmemoryPart objects.
2021-07-06 16:28:41 +03:00
Aliaksandr Valialkin
7c6d3981bf lib/uint64set: allow reusing bucket16 structs inside uint64set.Set via uint64set.Release method
This reduces the load on memory allocator in Go runtime in production workload.
2021-07-06 15:35:03 +03:00
Aliaksandr Valialkin
f3acf065c9 lib/storage: consistency renaming: tagCache -> tagFiltersCache
This improves code readability
2021-07-06 11:03:51 +03:00
Aliaksandr Valialkin
0020b9f904 lib/workingsetcache: properly update stats for requests and cache misses
Previously the stats for cache misses could be improperly counted, because it had inflated cache misses
if the entry was missing in the curr cache, but was existing in the prev cache.

The same applies to cache requests - they were inflated if the entry was missing in the curr cache.
2021-07-06 10:53:32 +03:00
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