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183 commits

Author SHA1 Message Date
Oleg Kovalov
74ba42d111 fix misspelled words (#229) 2019-11-12 00:18:24 +02:00
Aliaksandr Valialkin
c48e39eea9 lib/storage: add tests for dateMetricIDCache 2019-11-11 13:21:05 +02:00
Aliaksandr Valialkin
6bdde0d6d4 lib/storage: eliminate data race when updating lastSyncTime in dateMetricIDCache.Has 2019-11-10 22:04:23 +02:00
Aliaksandr Valialkin
5f52eb7653 lib/fs: do not postpone directory removal on NFS error 
Continue trying to remove NFS directory on temporary errors for up to a minute.

The previous async removal process breaks in the following case during VictoriaMetrics start

- VictoriaMetrics opens index, finds incomplete merge transactions and starts replaying them.
- The transaction instructs removing old directories for parts, which were already merged into bigger part.
- VictoriaMetrics removes these directories, but their removal is delayed due to NFS errors.
- VictoriaMetrics scans partition directory after all the incomplete merge transactions are finished
  and finds directories, which should be removed, but weren't still removed due to NFS errors.
- VictoriaMetrics panics when it finds unexpected empty directory.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/162
 2019-11-10 13:27:16 +02:00
Aliaksandr Valialkin
9ea2bd822e lib/storage: implement per-day inverted index 2019-11-10 00:20:32 +02:00
Aliaksandr Valialkin
dea2f3efed lib/storage: use specialized cache for (date, metricID) entries 
This improves ingestion performance.
 2019-11-09 23:09:18 +02:00
Aliaksandr Valialkin
9a43902bd8 lib/storage: remove unused code from getMetricIDsForTimeRange: it is expected that time range is always non-zero 2019-11-09 19:03:51 +02:00
Aliaksandr Valialkin
c16e17dede lib/storage: properly set time range when deleting time series 2019-11-09 18:50:02 +02:00
Aliaksandr Valialkin
8126007c15 lib/storage: obtain all the time series ids from (tag->metricIDs) rows instead of (metricID->TSID) rows, since this much faster 2019-11-09 18:04:26 +02:00
Aliaksandr Valialkin
50773348d3 lib/storage: small code prettifying 2019-11-09 14:01:24 +02:00
Aliaksandr Valialkin
44fa8226df lib/uint64set: remove superflouos check for item existence before deleting it in Set.Subtract 2019-11-09 14:01:24 +02:00
Aliaksandr Valialkin
0bc54c23ce lib/storage: inmemoryInvertedIndex prettifying 2019-11-09 14:01:24 +02:00
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