Commit graph

684 commits

Author SHA1 Message Date
Aliaksandr Valialkin
c4638553a3
lib/fs: rename WriteFileAtomically to MustWriteAtomic
Callers of this function log the returned error and exit.
So let's just log the error with the given filepath and the call stack
inside the function itself and then exit. This simplifies the code
at callers' place while leaves the same level of debuggability in case of errors.
2023-04-13 22:43:30 -07:00
Aliaksandr Valialkin
aac3dccfd1
lib/fs: replace MkdirAllIfNotExist->MustMkdirIfNotExist and MkdirAllFailIfExist->MustMkdirFailIfExist
Callers of these functions log the returned error and then exit. The returned error already contains the path
to directory, which was failed to be created. So let's just log the error together with the call stack
inside these functions. This leaves the debuggability of the returned error at the same level
while allows simplifying the code at callers' side.

While at it, properly use MustMkdirFailIfExist instead of MustMkdirIfNotExist inside inmemoryPart.MustStoreToDisk().
It is expected that the inmemoryPart.MustStoreToDick() must fail if there is already a directory under the given path.
2023-04-13 22:22:08 -07:00
Aliaksandr Valialkin
b4c330ea2b
lib/fs: rename MustWriteFileAndSync to MustWriteSync in order to improve readability a bit
This is a follow-up for 2a8395be05
2023-04-13 22:20:31 -07:00
Aliaksandr Valialkin
cdee2cfc5c
lib/{mergeset,storage}: remove unused path field from blockStreamWriter
This is a follow-up after 42bba64aa7
2023-04-13 22:20:02 -07:00
Aliaksandr Valialkin
1cda542c48
lib/fs: replace WriteFileAndSync with MustWriteAndSync
When WriteFileAndSync fails, then the caller eventually logs the error message
and exits. The error message returned by WriteFileAndSync already contains the path
to the file, which couldn't be created. This information alongside the call stack
is enough for debugging the issue. So just use log.Panicf("FATAL: ...") inside MustWriteAndSync().
This simplifies error handling at caller side a bit.
2023-04-13 22:17:34 -07:00
Aliaksandr Valialkin
eb7df27e20
lib/{mergeset,storage}: properly fsync part directory listing after writing in-memory part to disk
This is a follow-up after 42bba64aa7

Previously the part directory listing was fsync'ed implicitly inside partHeader.WriteMetadata()
by calling fs.WriteFileAtomically(). Now it must be fsync'ed explicitly.

There is no need in fsync'ing the parent directory, since it is fsync'ed by the caller
when updating parts.json file.
2023-04-13 21:21:46 -07:00
Aliaksandr Valialkin
13d2350e6a
lib/{mergeset,storage}: explicitly fsync the created part directory listing
Previously the created part directory listing was fsynced implicitly
when storing metadata.json file in it.

Also remove superflouous fsync for part directory listing,
which was called at blockStreamWriter.MustClose().
After that the metadata.json file is created, so an additional fsync
for the directory contents is needed.
2023-04-13 21:07:33 -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
Haleygo
7ee32ed06a
fix sort pendingDateMetricsIDs (#4102) 2023-04-10 10:16:36 -07:00
Aliaksandr Valialkin
52734c71fc
lib/storage: use shorter code after 03bde173b7 2023-04-02 21:35:34 -07:00
faceair
03bde173b7
lib/storage: fix reuse pendingMetricRow (#4049) 2023-04-02 21:28:43 -07:00
faceair
a4b4bda166
lib/storage: remove unused code (#4050) 2023-04-02 21:23:24 -07:00
Roman Khavronenko
5f95f9d453
lib/storage: check for free disk space before opening tables (#4035)
* lib/storage: check for free disk space before opening tables

We check for free disk space before call to `openTable`,
so `Storage` can be set to ReadOnly before mergeWorkers start.

Before the change, there was a chance that merges will start
even if Storage has to start in ReadOnly mode because of
`-storage.minFreeDiskSpaceBytes` limit.

https://github.com/VictoriaMetrics/VictoriaMetrics/issues/4023
Signed-off-by: hagen1778 <roman@victoriametrics.com>

* lib/storage: chore

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

* Update lib/storage/storage.go

---------

Signed-off-by: hagen1778 <roman@victoriametrics.com>
Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
2023-03-31 23:50:56 -07:00
Aliaksandr Valialkin
f6c36d5dfd
lib/storage: consistently use OS-independent separator in file paths
This is needed for Windows support, which uses `\` instead of `/` as file separator

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/70
2023-03-25 14:34:36 -07:00
Aliaksandr Valialkin
1d9a461c23
all: follow-up after 34634ec357
- Use windows.FlushFileBuffers() instead of windows.Fsync() at streamTracker.adviseDontNeed()
  for consistency with implementations for other architectures.
- Use filepath.Base() instead of filepath.Split(), since the dir part isn't used.
  This simplifies the code a bit.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/70
2023-03-25 12:00:48 -07:00
Nikolay
d231cefe25
lib/fs: adds memory map for windows (#3988)
This is a follow-up for 43b24164ef

* lib/fs: adds memory map for windows
it should improve performance for file reading

* lib/storage: replace '/' with os specific separator
it must fix an errors for windows

* lib/fs: mention windows fsync support

* lib/filestream: adds fdatasync for windows writes

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/70
2023-03-25 12:00:44 -07:00
Dmytro Kozlov
693a3de0a6
lib/storage: fix collect downsampling metrics (#489)
* lib/storage: fix downsampling

* lib/storage: update logic

* lib/storage: fix comments, removed unneeded check
2023-03-19 23:30:00 -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
d2f85816ea
lib/{mergeset,storage}: prevent from long wait time when creating a snapshot under high data ingestion rate
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3551
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/pull/3873
2023-03-19 00:19:02 -07:00
Aliaksandr Valialkin
8aeee8bcca
lib/{fs,mergeset,storage}: substitute os.Open()+os.File.Readdir() with os.ReadDir()
This simplifies code a bit
2023-03-17 21:03:52 -07:00
Zakhar Bessarab
d1d108fe77
lib/storage: log original labels set when label value is truncated (#3952)
lib/storage: log original labels set when label value is truncated
2023-03-14 16:11:02 -07:00
Nikolay
3caf898a83
lib/storage: correctly handle io.EOF error for pre-fetched metrics (#3946)
io.EOF shouldn't be returned from this function. It breaks all search
API logic and may result in empty query results.
2023-03-12 00:19:58 -08:00
Nikolay
361e1b1165
lib{mergset,storage}: prevent possible race condition with logging st… (#3900) (#3917)
lib{mergset,storage}: prevent possible race condition with logging stats for merges

Previously partwrapper could be release by background process and reference for part may be invalid 
during logging stats. It will lead to panic at vmstorage
https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3897
2023-03-06 11:11:08 +01:00
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
Zakhar Bessarab
75b8733e0b
lib/{fs,mergeset,storage}: skip .must-remove. dirs when creating snapshot (#3858) (#3867) 2023-02-24 12:43:43 -08:00
Oleksandr Redko
0e1c395609
app,lib: fix typos in comments (#3804) 2023-02-13 09:32:35 -08:00
Aliaksandr Valialkin
9053745a6f
lib/{mergeset,storage}: allow at least 3 concurrent flushes during background merges on systems with 1 or 2 CPU cores
This should prevent from data ingestion slowdown and query performance degradation
on systems with small number of CPU cores (1 or 2), when big merge is performed.

This should help https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3790

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3337
2023-02-11 12:09:13 -08:00
Nikolay
554876cc38
lib/storage: fixes finalDedup for backfilled data (#3737)
previously historical data backfilling may trigger force merge for previous month every hour
it consumes cpu, disk io and decrease cluster performance.
Following commit fixes it by applying deduplication for InMemoryParts
2023-02-01 09:57:02 -08:00
Nikolay
4af05065d1
lib/storage: properly release parts inMerge lock (#3711)
if storage doesn't have enough disk space, finalDedupWatcher holds inMerge lock for all parts and never release it until storage restart
2023-01-26 08:57:36 -08:00
Aliaksandr Valialkin
903b2e710c
lib/storage: use deterministic random generator in tests
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3683
2023-01-23 20:12:32 -08:00
Aliaksandr Valialkin
c5e858461c
lib/{storage,mergeset}: wake up background merges as soon as there is a potential work for them
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3647
2023-01-18 01:10:43 -08:00
Aliaksandr Valialkin
70b5a6fb28
lib/{storage,mergeset}: do not run assisted merges when flushing pending samples to parts
Assisted merges are intended to be performed by goroutines, which accept the incoming samples,
in order to limit the data ingestion rate.

The worker, which converts pending samples to parts, shouldn't be penalized by assisted merges,
since this may result in increased number of pending rows as seen at https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3647#issuecomment-1385039142
when the assisted merge takes too much time.
2023-01-18 00:25:33 -08:00
Aliaksandr Valialkin
0c90b49e4b
lib/storage: use better naming for a function returning new []rawRows - newRawRowsBlock() -> newRawRows() 2023-01-18 00:01:21 -08:00
Aliaksandr Valialkin
103dfd0525
lib/{mergeset,storage}: do not slow down concurrently executed queries during assisted merges
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3647
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3641
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/648
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/291
2023-01-16 14:45:40 -08:00
Aliaksandr Valialkin
12e2bcdf81
app/vmselect/promql: avoid memory allocations and copying from source timeseries to the returned result at timeseriesToResult() 2023-01-09 22:39:15 -08:00
Aliaksandr Valialkin
b7a4650ab0
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 21:45:34 -08:00
Aliaksandr Valialkin
eb9a542c1f
lib/storage: simplify the fix from 488940502c
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3566
2023-01-07 01:11:35 -08:00
Dmytro Kozlov
f739e44802
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 01:11:10 -08:00
Aliaksandr Valialkin
b275983403
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 22:07:16 -08:00
Roman Khavronenko
57277ed6bc
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 18:32:53 -08:00
Aliaksandr Valialkin
8dc04a86f6
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 14:42:45 -08:00
Aliaksandr Valialkin
1ff62629f4
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 14:05:53 -08:00
Aliaksandr Valialkin
2184de3bf2
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 13:23:30 -08:00
Aliaksandr Valialkin
11bd290201
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 11:56:49 -08:00
Aliaksandr Valialkin
8c08d625ee
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 10:31:39 -08:00
Aliaksandr Valialkin
512c73cef9
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 10:31:38 -08:00
Aliaksandr Valialkin
fbeebe4869
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 22:07:55 -08:00
Aliaksandr Valialkin
1a88fe5b1f
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 19:29:57 -08:00
Aliaksandr Valialkin
ea7940e5a7
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 09:14:08 -08:00
Aliaksandr Valialkin
2a190f6451
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 17:01:33 -08:00
Aliaksandr Valialkin
e56d5e1918
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 18:18:49 -08:00
Roman Khavronenko
909cd04c55
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 18:18:36 -08:00
Aliaksandr Valialkin
0a9992a9c6
lib/{storage,mergeset}: log the duration for flushing in-memory parts on graceful shutdown 2022-12-05 21:55:21 -08:00
Aliaksandr Valialkin
7d5c64eb7a
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 15:28:09 -08:00
Aliaksandr Valialkin
9ac1174493
lib/{mergeset,storage}: add start background workers via startBackgroundWorkers() function 2022-12-04 00:01:14 -08:00
Aliaksandr Valialkin
a13d21513e
lib/mergeset: panic when too long item is passed to Table.AddItems() 2022-12-03 23:37:20 -08:00
Aliaksandr Valialkin
dccd70ce10
lib/storage: remove duplicate logging for filepath on errors 2022-12-03 23:15:28 -08:00
Aliaksandr Valialkin
813e8402f6
lib/storage: pass a single arg - rowsPerBlock - to getCompressLevel() function instead of two args 2022-12-03 23:10:26 -08:00
Aliaksandr Valialkin
bb93494eac
lib/{storage,mergeset}: use a single sync.WaitGroup for all background workers
This simplifies the code
2022-12-03 23:03:32 -08:00
Aliaksandr Valialkin
106332cd9f
lib/storage: properly pass retentionMsecs to OpenStorage() at TestIndexDBRepopulateAfterRotation 2022-12-03 23:03:30 -08:00
Aliaksandr Valialkin
ea55c16422
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 22:47:06 -08:00
Aliaksandr Valialkin
7ffa66d249
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 22:31:34 -08:00
Aliaksandr Valialkin
10a17bfa16
lib/{storage,mergeset}: consistency rename: `flushRaw{Rows,Items} -> flushPending{Rows,Items} 2022-12-03 22:18:05 -08:00
Aliaksandr Valialkin
233301a549
lib/storage: optimization: do not scan block for rows outside retention if it is covered by the retention 2022-12-03 22:14:20 -08:00
Aliaksandr Valialkin
fd9d0a550b
lib/storage: remove logging redundant path values in a single error message 2022-12-03 22:14:19 -08:00
Aliaksandr Valialkin
8e9822bc7f
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 20:59:59 -08:00
Aliaksandr Valialkin
d8303845ef
lib/storage: fix TestUpdateCurrHourMetricIDs test when it runs on the first hour of the day by UTC 2022-12-02 17:23:59 -08:00
Aliaksandr Valialkin
d8d4d21d7a
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 17:07:52 -08:00
匠心零度
d4808d5b84
lib/storage: remove extra error check (#3396) 2022-11-28 17:07:11 +01:00
Zakhar Bessarab
e407e7243a
{app/vmstorage,app/vmselect}: add API to get list of existing tenants (#3348)
* {app/vmstorage,app/vmselect}: add API to get list of existing tenants

* {app/vmstorage,app/vmselect}: add API to get list of existing tenants

* app/vmselect: fix error message

* {app/vmstorage,app/vmselect}: fix error messages

* app/vmselect: change log level for error handling

* wip

Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
2022-11-25 10:32:45 -08:00
Aliaksandr Valialkin
d3035b1ca1
lib/storage: follow-up for 790768f20b
- Document the bugfix at docs/CHANGELOG.md
- Simplify the bugfix a bit
2022-11-07 14:18:06 +02:00
Aliaksandr Valialkin
be78950011
lib/storage: typo fix after 32d48f8dfbb03174858c00bdfe6d9d22431dc8d8 2022-11-07 13:58:13 +02:00
Aliaksandr Valialkin
99e6a937a5
lib/storage: remove unused isFull field from hourMetricIDs struct 2022-11-07 13:15:59 +02:00
Aliaksandr Valialkin
ecb71a7221
lib/fs: add canOverwrite arg to WriteFileAtomically when it is allowed to overwrite the file atomically if it already exists 2022-10-26 01:08:35 +03:00
Aliaksandr Valialkin
a6d4711ac6
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 16:41:59 +03:00
Aliaksandr Valialkin
51f2e473f5
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 02:56:13 +03:00
Aliaksandr Valialkin
2fc82b846e
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 01:32:56 +03:00
Aliaksandr Valialkin
d51f9b9284
lib/storage: small code cleanups 2022-10-24 01:17:58 +03:00
Aliaksandr Valialkin
5ace1587e6
lib/storage: re-use newTestStorage() instead of manually initializing Storage mock
This is a follow-up for d2d30581a0
2022-10-23 16:24:42 +03:00
Aliaksandr Valialkin
57ea7a3ee8
lib/storage: pass Storage to table and partition instead of getDeletedMetricIDs callback
This improves code readability a bit.
2022-10-23 16:11:02 +03:00
Aliaksandr Valialkin
63419d8e7c
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 16:11:01 +03:00
Aliaksandr Valialkin
31071347ca
lib/storage: use a single reference to the currently merged block - bsm.Block during the block merge loop 2022-10-23 14:09:14 +03:00
Aliaksandr Valialkin
5d0a91afd5
lib/storage: properly pass uint64 constant to fmt.Errorf on 32-bit platforms 2022-10-23 12:48:43 +03:00
Aliaksandr Valialkin
2dd93449d8
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 12:43:44 +03:00
Aliaksandr Valialkin
fe5611d6e1
lib/storage: free up memory occupied by Storage.pendingHourEntries after a temporary spike in its memory usage
This reduces vmstorage memory usage by up to 20% in production workload
2022-10-21 14:59:14 +03:00
Aliaksandr Valialkin
32b6ce691b
lib/storage: move common code to newRawRowsBlock() function 2022-10-21 14:46:06 +03:00
Aliaksandr Valialkin
2f8861ed9c
lib/storage: simplify code a bit after 3f5959c053 2022-10-21 14:39:44 +03:00
Aliaksandr Valialkin
1fb2be0cae
lib/{mergeset,storage}: simplify the code a bit after ae55ad8749 2022-10-21 14:33:15 +03:00
Aliaksandr Valialkin
af648279ce
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 00:54:37 +03:00
Aliaksandr Valialkin
edf3b7be47
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 23:27:44 +03:00
Aliaksandr Valialkin
6855de311c
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 16:24:46 +03:00
Aliaksandr Valialkin
6f69a88a5a
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 18:19:28 +03:00
Aliaksandr Valialkin
68f3a02589
lib/{storage,mergeset}: do not hold per-shard lock in fast path when adding per-shard items to the flush list 2022-10-17 18:01:55 +03:00
Aliaksandr Valialkin
b96fe2e265
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 12:07:18 +03:00
Aliaksandr Valialkin
fe52378f45
lib/storage: substitute remaining calls to fs.MustRemoveAll with fs.MustRemoveDirAtomic 2022-09-13 15:49:25 +03:00
Aliaksandr Valialkin
6c9729d694
lib/storage: atomically remove parts inside partitions
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3038
2022-09-13 15:28:41 +03:00
Aliaksandr Valialkin
daa42e4f79
lib/storage: atomically remove partitions, which went outside the configured retention
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3038
2022-09-13 13:37:59 +03:00
Aliaksandr Valialkin
0a342f04b2
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 13:32:05 +03:00
Aliaksandr Valialkin
ff7188b6a5
lib/storage: atomically remove snapshot directories
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3038
2022-09-13 13:25:48 +03:00