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221 commits

Author SHA1 Message Date
Aliaksandr Valialkin
46e67bb78c lib/storage: export vm_new_timeseries_created_total metric for determining time series churn rate 2019-11-08 19:58:21 +02:00
Aliaksandr Valialkin
0063c857f5 lib/storage: add inmemory inverted index for the last hour 
It should improve performance for `last N hours` dashboards with update intervals smaller than 1 hour.
 2019-11-08 19:37:46 +02:00
Aliaksandr Valialkin
7d7fbf890e app/{vmbackup,vmrestore}: add vmbackup and vmrestore tools for creating backups on s3 or gcs from instant snapshots 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/203
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/38
 2019-11-07 21:26:43 +02:00
Aliaksandr Valialkin
89c03a5464 lib/storage: populate partition names from both small and big directories 
Certain partition directories may be missing after restoring from backups
if they had no data. Re-create such directories on start.
 2019-11-06 19:50:21 +02:00
Aliaksandr Valialkin
1c777e0245 lib/storage: substitute error message about unsorted items in the index block after metricIDs merge with counter 
The origin of the error has been detected and documented in the code,
so it is enough to export a counter for such errors at `vm_index_blocks_with_metric_ids_incorrect_order_total`,
so it could be monitored and alerted on high error rates.

Export also the counter for processed index blocks with metricIDs - `vm_index_blocks_with_metric_ids_processed_total`,
so its' rate could be compared to `rate(vm_index_blocks_with_metric_ids_incorrect_order_total)`.
 2019-11-06 14:32:41 +02:00
Aliaksandr Valialkin
c567a4353a lib/storage: take into account the requested time range when caching TSIDs for the given tag filters 2019-11-06 14:32:41 +02:00
Aliaksandr Valialkin
c6564c5d26 lib/storage: dump incorrectly sorted items on a single line; this should simplify error reporting 2019-11-05 18:41:50 +02:00
Aliaksandr Valialkin
a10c4cad85 lib/storage: return back finalPartsToMerge from 2 to 3 in order to prevent from excessive merges in old partitions 2019-11-05 17:28:57 +02:00
Aliaksandr Valialkin
e5b1fa0c38 lib/storage: separate the max inverted index scan loops per metric into fast and slow loops 
Slow loops could require seeks and expensive regexp matching, while fast loops just scans
all the metricIDs for the given `tag=value` prefix. So these operations must have separate
max loops multiplier.
 2019-11-05 17:28:57 +02:00
Aliaksandr Valialkin
f93c4f2493 lib/storage: skip repeated useless work when intersection of metricIDs with the given filter is too expensive 
This should improve performance for query filters over big number of time series.
 2019-11-05 14:35:55 +02:00
Aliaksandr Valialkin
f48e97263c lib/storage: reduce the maximum inverted index scans before giving up to label filters matching by metric name 
The new value reduces the amount of wasted work during index scans over big number of time series.
 2019-11-05 14:35:53 +02:00
Aliaksandr Valialkin
d2f688c550 lib/storage: try potentially faster tag filters at first, then apply slower tag filters 
The fastest tag filters are non-negative non-regexp, since they are the most specific.
The slowest tag filters are negative regexp, since they require scanning
all the entries for the given label.
 2019-11-05 14:35:48 +02:00
Aliaksandr Valialkin
2a38d30f93 lib/storage: pass pointer to MetricName in Fatalf, so it is properly detected as an interface with String() method 
This fixes lint errors
 2019-11-04 01:06:45 +02:00
Artem Navoiev
e05500cbd4 add unittests for bytesutil and storage (#221) 2019-11-04 00:57:24 +02:00
Aliaksandr Valialkin
f5fbc3ffd7 lib/{storage,uint64set}: add Set.Union() function and use it 2019-11-04 00:48:32 +02:00
Aliaksandr Valialkin
23e078261e lib/storage: tune the returned value from adjustMaxMetricsAdaptive 2019-11-04 00:45:28 +02:00
Aliaksandr Valialkin
386c349c8c lib/storage: remove interface conversion in hot path during block merging 
This should improve merge speed a bit for parts with big number of small blocks.
 2019-11-03 12:33:48 +02:00
Aliaksandr Valialkin
26ffc77622 lib/{storage,mergeset}: create missing partition directories after restoring from backups 
Backup tools could skip empty directories. So re-create such directories on the first run.
 2019-11-02 02:27:19 +02:00
Aliaksandr Valialkin
5d439cc6f2 lib/{decimal,encoding}: optimize float64<->decimal conversion for arrays with zeros or ones 
Time series with only zeros or ones frequently occur in monitoring, so it is worth optimizing their handling.
 2019-11-01 16:46:08 +02:00
Aliaksandr Valialkin
1037053fed lib/{encoding,decimal}: add benchmarks for blocks containing zeros or ones 
Time series with such values are quite common in monitoring space,
so it would be great to have benchmarks for them.
 2019-11-01 16:46:08 +02:00
Aliaksandr Valialkin
44fab198e2 lib/uint64set: return an emptry set instead of nil set from Set.Clone, since the caller may add data to the cloned set 
This fixes the following panic in v1.28.1:

panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x10 pc=0x783a7e]

goroutine 1155 [running]:
github.com/VictoriaMetrics/VictoriaMetrics/lib/uint64set.(*Set).Add(0x0, 0x15b3bfb41e8b71ec)
  github.com/VictoriaMetrics/VictoriaMetrics@/lib/uint64set/uint64set.go:57 +0x2e
github.com/VictoriaMetrics/VictoriaMetrics/lib/storage.(*indexSearch).getMetricIDsForRecentHours(0xc5bdc0dd40, 0x16e273f6b50, 0x16e2745d3f0, 0x5b8d95, 0x10, 0x4a2f51, 0xaa01000000000000)
  github.com/VictoriaMetrics/VictoriaMetrics@/lib/storage/index_db.go:1951 +0x260
github.com/VictoriaMetrics/VictoriaMetrics/lib/storage.(*indexSearch).getMetricIDsForTimeRange(0xc5bdc0dd40, 0x16e273f6b50, 0x16e2745d3f0, 0x5b8d95, 0x10, 0xb296c0, 0xc00009cd80, 0x9bc640)
 2019-11-01 16:12:21 +02:00
Aliaksandr Valialkin
6ab9c98a1e app/vmstorage: add -bigMergeConcurrency and -smallMergeConcurrency flags for tuning the maximum number of CPU cores used during merges 2019-10-31 16:17:29 +02:00
Aliaksandr Valialkin
6a22727676 lib/storage: optimize getMetricIDsForRecentHours for per-tenant lookups 2019-10-31 15:51:09 +02:00
Aliaksandr Valialkin
ca480915ca lib/storage: small cleanup in Storage.add 2019-10-31 14:30:22 +02:00
Aliaksandr Valialkin
22030b558f lib/decimal: speed up FromFloat for common case with integers 2019-10-31 13:25:09 +02:00
Aliaksandr Valialkin
6510258a80 lib/decimal: increase float64->decimal conversion precision a bit 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/213
 2019-10-30 02:04:28 +02:00
Aliaksandr Valialkin
a27e034a40 lib/storage: get parts to merge after applying the limit on the number of concurrent merges 
This should reduce write amplification under high ingestion rate.
 2019-10-30 00:09:44 +02:00
Aliaksandr Valialkin
5d2276dbf7 lib/{mergeset,storage}: limit the maximum number of concurrent merges; leave smaller number of parts during final merge 2019-10-29 12:45:37 +02:00
Aliaksandr Valialkin
f581b2736a lib/fs: typo fix in comment to WriteFileAtomically 2019-10-29 11:31:34 +02:00
Aliaksandr Valialkin
eb513e7ba3 lib/decimal: increase float->decimal conversion precision for big numbers 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/213
 2019-10-28 13:23:54 +02:00
hanzai
52778da1f3 warns during rows addition (#214) 2019-10-20 23:38:51 +03:00
Aliaksandr Valialkin
78fc35c9b1 all: make fmt 2019-10-17 20:05:12 +03:00
Aliaksandr Valialkin
5b01b7fb01 all: add support for GOARCH=386 and fix all the issues related to 32-bit architectures such as GOARCH=arm 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/212
 2019-10-17 18:27:49 +03:00
Aliaksandr Valialkin
12c8afc3f2 lib/memory: properly handle int overflow in sysTotalMemory 
This should fix builds on 32-bit architectures such as arm.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/212
 2019-10-17 18:27:49 +03:00
Aliaksandr Valialkin
dc2f822577 lib/prompb: removed outdated README.md 2019-10-14 22:16:36 +03:00
Aliaksandr Valialkin
661b8ede5b lib/storage: harden the check that the original items are sorted after mergeTagToMetricIDsRows fails to preserve sort order 2019-10-09 12:13:43 +03:00
Aliaksandr Valialkin
7f4a04ee6a lib/storage: typo fix in comment to maxRowsPerSmallPart. 2019-10-08 18:51:56 +03:00
Aliaksandr Valialkin
7e410e1412 lib/storage: add tests for mergeTagToMetricIDsRows and return the original items if the function breaks items` ordering. 
This should save from data corruption issues revealed in the previous releases up to v1.28.0-beta5.
 2019-10-08 16:35:39 +03:00
Aliaksandr Valialkin
9fce611fbb lib/mergeset: reduce the maximum number of cached blocks, since there are reports on OOMs due to too big caches 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/189
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/195
 2019-09-30 12:27:30 +03:00
Aliaksandr Valialkin
d0b4590099 lib/storage: optimize TSID comparison 2019-09-26 14:20:02 +03:00
Aliaksandr Valialkin
95e3d648cb lib/storage: verify whether items are sorted in the end of call to mergeTagToMetricIDsRows 
This should prevent from inverted index corruption if bug in mergeTagToMetricIDsRows is discovered.
 2019-09-26 13:13:58 +03:00
Aliaksandr Valialkin
2b8358726f lib/storage: properly match labels against regexp with (?i) flag 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/161
 2019-09-26 11:03:26 +03:00
Aliaksandr Valialkin
4e3871ac1e lib/storage: add missing break in removeDuplicateMetricIDs 2019-09-25 18:23:13 +03:00
Aliaksandr Valialkin
4468f9f966 lib/storage: remove duplicate MetricIDs in tag->metricIDs items before writing them into inverted index 2019-09-25 17:57:36 +03:00
Aliaksandr Valialkin
adc18c3ee6 lib/{mergeset,storage}: do not cache inverted index blocks containing tag->metricIDs items 
This should reduce the amounts of used RAM during queries with filters over big number of time series.
 2019-09-25 13:48:24 +03:00
Aliaksandr Valialkin
c64fb91a43 lib/uint64set: optimize Set.AppendTo 2019-09-25 00:34:31 +03:00
Aliaksandr Valialkin
de0e4eee2c lib/storage: create and use lib/uint64set instead of map[uint64]struct{} 
This should improve inverted index search performance for filters matching big number of time series,
since `lib/uint64set.Set` is faster than `map[uint64]struct{}` for both `Add` and `Has` calls.
See the corresponding benchmarks in `lib/uint64set`.
 2019-09-24 21:18:04 +03:00
Aliaksandr Valialkin
2212d0e421 lib/storage: typo fix: return dstData instead of data from mergeTagToMetricIDsRows 2019-09-24 19:32:58 +03:00
Aliaksandr Valialkin
9307de1b92 lib/storage: limit the number of metricIDs in tag->metricIDs row 
This reduces the overhead on index and metaindex in lib/mergeset
 2019-09-24 00:50:47 +03:00
Aliaksandr Valialkin
7734fc8012 lib/storage: share tsids across all the partSearch instances 
This should reduce memory usage when big number of time series matches the given query.
 2019-09-23 22:36:16 +03:00
Aliaksandr Valialkin
67a2bcb98a lib/{storage,mergeset}: verify PrepareBlock callback results 
Do not touch the first and the last item passed to PrepareBlock
in order to preserve sort order of mergeset blocks.
 2019-09-23 20:46:33 +03:00
Aliaksandr Valialkin
3304dc1e85 lib/mergeset: detect whether we are in test by executable suffix 2019-09-22 23:12:35 +03:00
Aliaksandr Valialkin
d2ed8cb0b2 lib/storage: generate the first tag->metricIDs item in a mergeset block with a single metricID 
The first item from each mergeset block goes into index (lib/mergeset.blockHeader),
so it must be short in order to reduce index size.
 2019-09-22 19:37:50 +03:00
Aliaksandr Valialkin
0a9cb6368e lib/workingsetcache: remove data race when resetting c.misses 2019-09-22 19:37:09 +03:00
Aliaksandr Valialkin
7d13c31566 lib/{storage,mergeset}: merge tag->metricID rows into tag->metricIDs rows for common tag values 
This should improve lookup performance if the same `label=value` pair exists
in big number of time series.
This should also reduce memory usage for mergeset data cache, since `tag->metricIDs` rows
occupy less space than the original `tag->metricID` rows.
 2019-09-20 22:06:23 +03:00
Aliaksandr Valialkin
272e2f77c9 lib/encoding: optimize UnmarshalUint* and UnmarshalInt* 2019-09-20 13:08:24 +03:00
Aliaksandr Valialkin
7e0c6d4ca6 lib/storage: optimize selecting all the metricIDs by scanning MetricID->TSID entries instead of tag->MetricID entries 
The number of MetricID->TSID entries is smaller than the number of tag->MetricID entries
and MetricID->TSID entries are usually shorter than tag->MetricID entries.
This should improve performance when selecting all the metricIDs.
 2019-09-20 11:57:57 +03:00
Aliaksandr Valialkin
bf8505353a lib/mergeset: rename misleading mergeSmallParts to mergeExistingParts 2019-09-19 21:48:36 +03:00
Aliaksandr Valialkin
ebbef20535 lib/mergeset: use sort.IsSorted instead of sort.SliceIsSorted in inmemoryBlock.isSorted in order to reduce memory allocations 2019-09-19 20:13:54 +03:00
Aliaksandr Valialkin
89234f395d lib/storage: use sort.Sort instead of sort.slice in getSortedMetricIDs 2019-09-19 20:08:13 +03:00
Aliaksandr Valialkin
6e586fa09c lib/storage: skip duplicate call to intersectMetricIDsWithTagFilter on zero successful intersects 2019-09-19 17:51:10 +03:00
Aliaksandr Valialkin
410f993bf6 lib/mergeset: fill partHeader.firstItem on first block flush 2019-09-19 17:48:22 +03:00
Aliaksandr Valialkin
c05885fb5f lib/storage: mark tag filter returning errFallbackToMetricNameMatch as useless 
This will save CPU on subsequent calls for this filter
 2019-09-18 19:11:44 +03:00
Aliaksandr Valialkin
db71c940ea lib/storage: properly construct keys for uselessTagFiltersCache and register useless negative tag filters there 2019-09-17 23:18:37 +03:00
Aliaksandr Valialkin
41ef6b060e lib/mergeset: properly check for sorted block headers 
Fix a typo for https://github.com/VictoriaMetrics/VictoriaMetrics/issues/181
 2019-09-13 21:59:38 +03:00
hanzai
08cde5e3f4 lib/workingsetcache: adjust switching from mode=split to mode=whole smoothly and load cachefile successfully 2019-09-13 19:13:16 +03:00
Aliaksandr Valialkin
b101064f8b all: report the number of bytes read on io.ReadFull error 
This should simplify error investigation similar to https://github.com/VictoriaMetrics/VictoriaMetrics/issues/175
 2019-09-11 14:50:24 +03:00
Aliaksandr Valialkin
568ff61dcf lib/mergeset: dynamically calculate the maximum number of items per part, which can be cached in OS page cache 2019-09-09 11:42:45 +03:00
Aliaksandr Valialkin
2c654258ef lib/fs: add MustStopDirRemover for waiting until pending directories are removed on graceful shutdown 
This patch is mainly required for laggy NFS. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/162
 2019-09-05 11:17:17 +03:00
Aliaksandr Valialkin
2c2bd897dd lib/storage: remove duplicate tag keys on MetricName.Marshal call 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/172
 2019-09-04 18:13:51 +03:00
Aliaksandr Valialkin
82bfe818d0 lib/fs: try harder with directory removal on NFS in the event of temporary lock 
Do not give up after 11 attempts of directory removal on laggy NFS.

Add `vm_nfs_dir_remove_failed_attempts_total` metric for counting the number of failed attempts
on directory removal.

Log failed attempts on directory removal after long sleep times.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/162
 2019-09-04 12:24:41 +03:00
Aliaksandr Valialkin
0b0153ba3d lib/storage: invalidate tagFilters -> TSIDS cache when newly added index data becomes visible to search 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/163
 2019-08-29 15:08:44 +03:00
Aliaksandr Valialkin
8504a38214 lib/prombp: apply ba06b47c16 
The following commands used:

gofmt -r '(uint64(x)&0x7F)<<shift -> uint64(x&0x7F)<<shift' -w ./lib/prompb/
gofmt -r '(int64(x)&0x7F)<<shift -> int64(x&0x7F)<<shift' -w ./lib/prompb/
 2019-08-29 13:35:54 +03:00
Aliaksandr Valialkin
604a4312f9 all: port to FreeBSD on GOARCH=amd64 2019-08-28 01:46:09 +03:00
Aliaksandr Valialkin
da07a6fb38 lib/storage: go fmt 2019-08-27 14:28:24 +03:00
Aliaksandr Valialkin
a63b69e9e2 lib/storage: report proper maxMetrics limit when more than -search.maxUniqueTimeseries series match the given filters 2019-08-27 14:21:31 +03:00
Aliaksandr Valialkin
82e813bad3 lib/storage: properly handle (?i) in the tag filter regexp 
Fixes https://github.com/VictoriaMetrics/VictoriaMetrics/issues/161
 2019-08-26 00:44:56 +03:00
Aliaksandr Valialkin
e2eac858b5 lib/storage: calculate the maximum number of rows per small part from -memory.allowedPercent 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/159

This simplifies error detection additionally to the `vm_rows_ignored_total` counters.
 2019-08-25 15:29:09 +03:00
Aliaksandr Valialkin
0a8dd9cc9a lib/storage: calculate the maximum number of rows per small part from -memory.allowedPercent 
This should improve query speed over recent data on machines with big amounts of RAM
 2019-08-25 14:41:32 +03:00
Aliaksandr Valialkin
bc576fb386 lib/storage: properly limit the number of output rows in small and big parts storage 
Previously small parts storage didn't take into account the available disk space for big parts.
 2019-08-25 14:41:32 +03:00
Aliaksandr Valialkin
947decb3dd lib/storage: remove outdated comment on maxRowsPerSmallPart 
The commend became outdated after the commit ed6ac1a5df027f0dfc22448e3b27c26b6f77c67a,
which stops merging of small parts on graceful shutdown instead of waiting
for their completion.
 2019-08-25 13:46:10 +03:00
Aliaksandr Valialkin
c197641978 all: return 503 http error if service is temporarily unavailable 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/156
 2019-08-23 09:49:50 +03:00
Aliaksandr Valialkin
e734076f0f app/vminsert: allow setting the maximum number of labels per time series via -maxLabelsPerTimeseries 2019-08-23 08:47:18 +03:00
Aliaksandr Valialkin
4ed63d033a lib/storage: add benchmarks for regexp filter match / mismatch 
These benchmarks allow estimate the performance of regexp filters in promql
 2019-08-22 16:37:19 +03:00
Aliaksandr Valialkin
6ec6a8d7c1 lib/storage: try slower path for searching the tag filter with the minimum number of matching time series before giving up with increase -search.maxUniqueTimeseries error 2019-08-19 16:07:05 +03:00
Aliaksandr Valialkin
c59f5c4865 lib/storage: pre-allocate memory for blockHeader slice in unmarshalBlockHeaders 
This reduces memory usage and memory fragmentation when working with big number of time series
 2019-08-19 12:46:45 +03:00
Aliaksandr Valialkin
f696cc503a lib/workingsetcache: automatically detect when it is better to double cache capacity 2019-08-15 22:58:04 +03:00
Aliaksandr Valialkin
99eed2ca14 lib/storage: properly cache tagFilters -> TSIDs entries from historical index 2019-08-14 02:32:25 +03:00
Aliaksandr Valialkin
f1d81b9405 lib/storage: compress contents of cache for tagFilters -> TSIDs 
This should increase cache capacity
 2019-08-14 02:32:22 +03:00
Aliaksandr Valialkin
8c2158af24 all: use workingsetcache instead of fastcache 
This should reduce the amount of RAM required for processing time series
with non-zero churn rate.

The previous cache behavior can be restored with `-cache.oldBehavior` command-line flag.
 2019-08-13 21:40:28 +03:00
Aliaksandr Valialkin
51263b1a45 lib/fs: add test for IsTemporaryFileName 2019-08-13 21:33:54 +03:00
Aliaksandr Valialkin
5a7ab0d90b lib/storage: remove broken BenchmarkIndexDBSearchTSIDs 2019-08-13 20:21:23 +03:00
Aliaksandr Valialkin
39f3f3a517 lib: move common code for creating flock.lock file into fs.CreateFlockFile 2019-08-13 01:46:20 +03:00
Aliaksandr Valialkin
73f866d874 lib/fs: atomically create file with the given contents on WriteFileAtomically 
This should prevent from `transaction` and `metadata.json` files corruption
on unclean shutdown such as OOM, `kill -9`, power loss, etc.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/148
 2019-08-12 15:02:04 +03:00
Aliaksandr Valialkin
4fb635b0c9 lib/storage: do not change timestamps to constant rate if values are constant or have constant delta 
This breaks the original timestamps, which results in issues like
https://github.com/VictoriaMetrics/VictoriaMetrics/issues/120 and
https://github.com/VictoriaMetrics/VictoriaMetrics/issues/141 .
 2019-08-06 15:40:17 +03:00
Aliaksandr Valialkin
f56c1298ad app/vmstorage: add vm_concurrent_addrows_* metrics for tracking concurrency for Storage.AddRows calls 
Track also the number of dropped rows due to the exceeded timeout
on concurrency limit for Storage.AddRows. This number is tracked in `vm_concurrent_addrows_dropped_rows_total`
 2019-08-06 15:08:43 +03:00
Aliaksandr Valialkin
a3ecf3c1f7 lib/storage: properly reset partSearch.fetchData in partSearch.reset 2019-08-05 09:55:50 +03:00
Aliaksandr Valialkin
880b1d80b1 app/vmselect: optimize /api/v1/series by skipping storage data 
Fetch and process only time series metainfo.
 2019-08-04 23:00:46 +03:00
Aliaksandr Valialkin
a99e89945e lib/decimal: modernize tests a bit 2019-07-31 21:09:54 +03:00
Aliaksandr Valialkin
b7c4b0c6d2 lib/storage: fix matching against tag filter with empty name 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/137
 2019-07-30 15:15:21 +03:00