Aliaksandr Valialkin
54ef2d8112
lib/storage: slightly reduce code difference between single-node and cluster versions
2020-07-24 00:31:16 +03:00
Aliaksandr Valialkin
039c9d2441
lib/storage: respect -search.maxQueryDuration
when searching for time series in inverted index
...
Previously the time spent on inverted index search could exceed the configured `-search.maxQueryDuration`.
This commit stops searching in inverted index on query timeout.
2020-07-23 21:21:42 +03:00
Aliaksandr Valialkin
2a45871823
lib/storage: add more fine-grained pace limiting for search
2020-07-23 19:26:08 +03:00
Aliaksandr Valialkin
6f05c4d351
lib/storage: improve prioritizing of data ingestion over querying
...
Prioritize also small merges over big merges.
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/291
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/648
2020-07-23 13:23:36 +03:00
Aliaksandr Valialkin
61c611f5ad
lib/storage: properly calculate global metrics in UpdateStats()
2020-07-23 00:35:15 +03:00
Aliaksandr Valialkin
228d137936
lib/storage: reorder mergeBlockStreams() args in order to make them more consistent
2020-07-22 21:58:10 +03:00
Aliaksandr Valialkin
e4303d3d21
lib/storage: prevent possible race condition when all the goroutines exit Storage.AddRows, before goroutines other goroutines are blocked on searchTSIDsCond inside Storage.searchTSIDs
...
This condition may occur after the following sequence of events:
1) A goroutine enters the loop body when len(addRowsConcurrencyCh) == cap(addRowsConcurrencyCh) inside Storage.searchTSIDs.
2) All the goroutines return from Storage.AddRows.
3) The goroutine from step 1 blocks on searchTSIDsCond.Wait() inside the loop body.
The goroutine remains blocked until the next call to Storage.AddRows, which calls searchTSIDsCond.Signal().
This may take indefinite time.
2020-07-22 21:52:34 +03:00
Aliaksandr Valialkin
d3442b40b2
lib/uint64set: optimize adding items to the set via Set.AddMulti
2020-07-21 20:56:59 +03:00
Aliaksandr Valialkin
e1107fec10
lib/storage: reset MetricName->TSID
cache after marking metricIDs as deleted
...
This is a follow-up commit after 12b16077c4
,
which didn't reset the `tsidCache` in all the required places.
This could result in indefinite errors like:
missing metricName by metricID ...; this could be the case after unclean shutdown; deleting the metricID, so it could be re-created next time
Fix this by resetting the cache inside deleteMetricIDs function.
2020-07-14 14:06:32 +03:00
Aliaksandr Valialkin
cb92113632
lib/storage: limit the maximum concurrency for data ingestion to GOMAXPROCS
...
Previously the concurrency has been limited to GOMAXPROCS*2. This had little sense,
since every call to Storage.AddRows is bound to CPU, so the maximum ingestion bandwidth
is achieved when the number of concurrent calls to Storage.AddRows is limited to the number of CPUs,
i.e. to GOMAXPROCS.
2020-07-08 17:32:18 +03:00
Aliaksandr Valialkin
32b9fb58b8
lib/storage: clarify out of retention period
error message by mentioning -retentionPeriod
command-line flag
2020-07-08 13:54:26 +03:00
Aliaksandr Valialkin
12b16077c4
lib/storage: reset MetricName->TSID cache after deleting time series
...
This should prevent from adding new data points to deleted time series
without the need to check for the deleted time series.
This improves ingestion performance a bit when the `deleted time series ids` aka `dmis` set
contains big number of time series.
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/596
Based on the idea from @n4mine at https://github.com/VictoriaMetrics/VictoriaMetrics/pull/604
2020-07-06 22:01:08 +03:00
Aliaksandr Valialkin
6daa5f7500
lib/storage: prioritize data ingestion over heavy queries
...
Heavy queries could result in the lack of CPU resources for processing the current data ingestion stream.
Prevent this by delaying queries' execution until free resources are available for data ingestion.
Expose `vm_search_delays_total` metric, which may be used in for alerting when there is no enough CPU resources
for data ingestion and/or for executing heavy queries.
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/291
2020-07-05 19:42:05 +03:00
Aliaksandr Valialkin
0b2086b7a5
app/vminsert: prevent from adding and/or selecting labels with empty values
...
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/600
2020-07-02 23:14:11 +03:00
Aliaksandr Valialkin
d5dddb0953
all: use %w instead of %s for wrapping errors in fmt.Errorf
...
This will simplify examining the returned errors such as httpserver.ErrorWithStatusCode .
See https://blog.golang.org/go1.13-errors for details.
2020-06-30 23:05:11 +03:00
Aliaksandr Valialkin
7532dbcdf5
app/vmselect/promql: properly override label values from group_left
and group_right
lists like Prometheus does
...
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/577
2020-06-21 16:33:01 +03:00
Tristan Su
ac3700ed1e
lib/storage: set big/small merge concurrency ( #568 )
...
fixed #567
Co-authored-by: Tristan Su <suqing.sq@alibaba-inc.com>
2020-06-19 01:25:48 +03:00
Aliaksandr Valialkin
b542e50680
app/vminsert: export metrics for determining ingested rows with dropped or truncated labels
...
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/565
2020-06-19 01:10:37 +03:00
Aliaksandr Valialkin
08495360b0
lib/storage: add key!=".+"
filter additionally to negative filter matching empty value such as key!~"|foo"
...
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/546
2020-06-18 20:03:48 +03:00
Aliaksandr Valialkin
ae1cc0fc4b
lib/storage: properly match {tag!="|foo"}
filters
...
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/546
2020-06-10 19:35:56 +03:00
Aliaksandr Valialkin
3d4008263f
lib/fs: optimize MustGetFreeSpace performance by caching the results for up to 2 seconds
2020-06-04 13:15:47 +03:00
Aliaksandr Valialkin
a7797dae09
lib/storage: fix Graphite wildcard matching, which has been broken in v1.36.0
...
v1.36.0 always returns empty responses for Graphite wildcards like the following
{__name__=~"foo\\.[^.]*\\.bar\\.baz"}
Temporary workaround for v1.36.0 is to add `[^.]*` to the end of the regexp.
2020-05-28 12:03:49 +03:00
Aliaksandr Valialkin
d186472081
lib/storage: improve search speed for time series matching Graphite whildcards such as foo.*.bar.baz
...
Add index for reverse Graphite-like metric names with dots. Use this index during search for filters
like `__name__=~"foo\\.[^.]*\\.bar\\.baz"` which end with non-empty suffix with dots, i.e. `.bar.baz` in this case.
This change may "hide" historical time series during queries. The workaround is to add `[.]*` to the end of regexp label filter,
i.e. "foo\\.[^.]*\\.bar\\.baz" should be substituted with "foo\\.[^.]*\\.bar\\.baz[.]*".
2020-05-27 21:45:52 +03:00
Aliaksandr Valialkin
b19ca3eb5f
lib/storage: do not increment vm_slow_metric_name_loads_total
counter for metric_ids which shouldnt be prefetched, since this may mislead users
2020-05-16 10:21:17 +03:00
Aliaksandr Valialkin
82ffbcb9a6
app/vmstorage: add vm_slow_metric_name_loads_total
metric, which could be used as an indicator when more RAM is needed for improving query performance
2020-05-15 14:11:45 +03:00
Aliaksandr Valialkin
82ccdfaa91
app/vmstorage: add vm_slow_row_inserts_total
and vm_slow_per_day_index_inserts_total
metrics for determining whether VictoriaMetrics required more RAM for the current number of active time series
2020-05-15 13:44:32 +03:00
Aliaksandr Valialkin
0eacea1de1
lib/{storage,mergeset}: further tuning of compression levels depending on block size
...
This should improve performance for querying newly added data, since it can be unpacked faster.
2020-05-15 13:24:37 +03:00
Aliaksandr Valialkin
737d641920
lib/storage: wait for all the goroutines to finish in TestSearch in order to prevent racy behavior on test finish
2020-05-15 13:24:37 +03:00
Aliaksandr Valialkin
4fc33163c4
lib/storage: optimize ingestion pefrormance for new time series
2020-05-15 13:24:37 +03:00
Aliaksandr Valialkin
8b32e7c3a0
lib/storage: reduce indentation in Storage.add
2020-05-15 13:24:37 +03:00
Aliaksandr Valialkin
1573ececb2
lib/storage: return the first error instead of the last error, since the first error usually points to the root cause
2020-05-15 13:24:37 +03:00
Aliaksandr Valialkin
0afd48d2ee
lib: extract common code for returning fast unix timestamp into lib/fasttime
2020-05-14 23:02:07 +03:00
Aliaksandr Valialkin
42866fa754
lib/{storage,mergeset}: return dst on error from unmarshalBlockHeaders, so it could be reused
2020-05-14 15:32:07 +03:00
Aliaksandr Valialkin
827a3a7866
lib/storage: document that getnerateUniqueMetricID should return dense ids
2020-05-14 14:08:45 +03:00
Aliaksandr Valialkin
606585f7be
lib/{storage,mergeset}: cleanup: remove unused partSearch.indexBlockReuse
2020-05-14 14:03:03 +03:00
Aliaksandr Valialkin
4fe67504f9
lib/storage: optimize label matching for regexp ending with literal suffix
...
For example, `{label=~"foo.*bar.+baz"}` contains literal suffix `baz`,
so it should work faster now.
2020-05-13 11:47:07 +03:00
Aliaksandr Valialkin
3232605524
lib/storage: properly initialize part struct before trying to close it on error
...
This should prevent from nil pointer dereference bug at https://github.com/VictoriaMetrics/VictoriaMetrics/issues/468 .
2020-05-12 14:54:31 +03:00
Aliaksandr Valialkin
dbd0c552d5
lib/storage: gradually pre-populate per-day inverted index for the next day
...
This should prevent from CPU usage spikes at 00:00 UTC every day when
inverted index for new day must be quickly created for all the active time series.
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/430
2020-05-12 12:13:05 +03:00
Aliaksandr Valialkin
cc00a2c453
lib/storage: typo fixes in error messages: or -> of
2020-05-12 12:12:42 +03:00
Aliaksandr Valialkin
ce2107bc52
lib/storage: speed up matching for common regexps in label filters
...
The following regexps have been optimized:
* 'foo.+bar'
* 'foo.+bar.+baz'
This should improve performance for matching Graphite-like metrics.
2020-05-11 22:40:55 +03:00
Aliaksandr Valialkin
12a1a71cc1
lib/storage: add a benchmark for Graphite-like regexps for metric names
2020-05-11 22:37:32 +03:00
Aliaksandr Valialkin
83aca79137
lib/storage: recover when metricID->metricName entry is missing in the inverted index after unclean shutdown
...
Newly added index entries can be missing after unclean shutdown, since they didn't flush to persistent storage yet.
Log about this and delete the corresponding metricID, so it could be re-created next time.
2020-04-28 12:00:33 +03:00
Aliaksandr Valialkin
b4afe562c1
lib/storage: postpone reading data from blocks during search
...
This eliminates the need for storing block data into temporary files on a single-node VictoriaMetrics
during heavy queries, which touch big number of time series over long time ranges.
This improves single-node VM performance on heavy queries by up to 2x.
2020-04-27 11:45:24 +03:00
kreedom
fb967ae6c8
happy fmt
2020-04-26 14:16:32 +03:00
Aliaksandr Valialkin
d7c1ff8b0c
lib/storage: improve deduplication algorithm
...
Now it leaves only the first data point on each `-dedup.minScrapeInterval` interval.
Previously it may leave two data points on the interval. This could lead to unexpected results
for `histogram_quantile(phi, sum(rate(buckets)) by (le))` query.
2020-04-26 13:10:02 +03:00
Aliaksandr Valialkin
491b31b369
lib/storage: postpone label filters matching too many time series instead of giving up with error
...
This should reduce the frequency of the following errors:
cannot find tag filter matching less than N time series; either increase -search.maxUniqueTimeseries or use more specific tag filters
more than N time series found on the time range [...]; either increase -search.maxUniqueTimeseries or shrink the time range
2020-04-24 21:13:50 +03:00
Aliaksandr Valialkin
364db13c9c
app/vmselect: add /api/v1/status/tsdb
page with useful stats for locating root cause for high cardinality issues
...
See https://prometheus.io/docs/prometheus/latest/querying/api/#tsdb-stats
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/425
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/268
2020-04-22 22:03:43 +03:00
Aliaksandr Valialkin
c1de3f67b4
lib/storage: skip metricID if the corresponding metricID->metricName is missing in inverted index during search
...
This case is possible when the corresponding metricID->metricName entry didn't propagate to inverted index yet.
This should fix the following error:
error when searching tsids for tfss [...]: cannot find metricName by metricID 1582417212213420669: EOF
2020-04-15 00:06:43 +03:00
Aliaksandr Valialkin
4de6c6bbf0
lib/storage: disable deduplication after dedup tests are complete
...
The rest of tests expect that the de-duplication is disabled.
2020-04-10 17:28:31 +03:00
Aliaksandr Valialkin
ded0c0d3c7
lib/storage: correctly handle -dedup.minScrapeInterval
values smaller than 8ms
...
Such small values may be used for removing samples with duplicate timestamps.
See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/409 for details.
2020-04-10 16:36:41 +03:00
Aliaksandr Valialkin
7d73623c69
lib/{storage,mergeset}: make sure that requests
and misses
cache counters never go down
2020-04-10 14:45:01 +03:00
Aliaksandr Valialkin
e0d0348f36
lib/storage: add missing reset for tagFilter.matchesEmptyValue on tagFilter.Init
2020-04-01 17:42:44 +03:00
Aliaksandr Valialkin
c4acd20d2a
lib/storage: remove duplicate data points on 7/8*minScrapeInterval interval instead of 1/2*minScrapeInterval
...
This should reduce storage usage and should improve deduplication accuracy
2020-04-01 15:48:48 +03:00
Aliaksandr Valialkin
b699c46046
lib/storage: handle errors returned from TagFilters.Add
when cloning TagFilters with negative filter
2020-03-31 16:18:02 +03:00
Aliaksandr Valialkin
972713bd79
lib/storage: add fast path for the previous indexdb search if it doesn't contain per-day inverted index yet
2020-03-31 12:51:21 +03:00
Aliaksandr Valialkin
5d99ca6cfc
lib/storage: optimize per-day inverted index search for tag filters matching big number of time series
...
- Sort tag filters in the ascending number of matching time series
in order to apply the most specific filters first.
- Fall back to metricName search for filters matching big number of time series
(usually this are negative filters or regexp filters).
2020-03-31 00:48:35 +03:00
Aliaksandr Valialkin
318326c309
lib/storage: properly handle {label=~"foo|"}
filters as Prometheus does
...
Such filters must match all the time series with `label="foo"` plus all the time series without `label`
Previously only time series with `label="foo"` were matched.
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/395
2020-03-31 00:48:18 +03:00
Aliaksandr Valialkin
f3e0c55ea1
lib/storage: serialize snapshot creation process with mutex
...
This guarantees that the snapshot contains all the recently added data
from inmemory buffers when multiple concurrent calls to Storage.CreateSnapshot are performed.
2020-03-24 22:27:05 +02:00
Aliaksandr Valialkin
df91d2d91f
lib/storage: remove obsolete code
2020-03-13 22:48:17 +02:00
Aliaksandr Valialkin
18af31a4c2
all: properly split vm_deduplicated_samples_total
among cluster components
...
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/345
2020-02-27 23:48:07 +02:00
Aliaksandr Valialkin
d21cb43e48
lib/storage: add vm_ prefix to deduplicated_samples_total
metric to be conistent with other metrics
2020-02-21 19:33:59 +02:00
Aliaksandr Valialkin
ce15cecae4
lib/storage: typo fix
2020-02-16 15:53:44 +02:00
Aliaksandr Valialkin
32e153e834
lib/storage: prevent from clobbering nin-nil lastError in Storage.add
2020-02-16 15:51:26 +02:00
Aliaksandr Valialkin
eceaf13e5e
lib/{storage,mergeset}: use time.Ticker instead of time.Timer where appropriate
...
It has been appeared that time.Timer was used in places where time.Ticker must be used instead.
This could result in blocked goroutines as in the https://github.com/VictoriaMetrics/VictoriaMetrics/issues/316 .
2020-02-13 13:10:07 +02:00
Aliaksandr Valialkin
e210cd9da1
lib/storage: move -dedup.minScrapeInterval
flag outside lib/storage, so it doesnt show up in vminsert
in cluster version
2020-02-10 13:09:51 +02:00
Aliaksandr Valialkin
bd4698bb7a
lib/storage: do not deduplicate blocks with less than 32 samples during merge
...
This should improve deduplication accuracy for blocks with higher number of samples.
2020-02-04 18:41:54 +02:00
Aliaksandr Valialkin
42864bb52f
all: do not clash flag description with back-quoted flag types
...
See https://golang.org/pkg/flag/#PrintDefaults for more details.
2020-02-04 15:46:52 +02:00
Aliaksandr Valialkin
c3d86eef96
all: add -dedup.minScrapeInterval
command-line flag for data de-duplication
...
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/86
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/278
2020-01-31 01:16:57 +02:00
Aliaksandr Valialkin
2152f6f0cd
lib/storage: re-use indexSearch inside Storage.prefetchMetricNames
2020-01-31 01:16:53 +02:00
Aliaksandr Valialkin
ad8af629bb
all: rename ReadAt* to MustReadAt* in order to dont clash with io.ReaderAt
2020-01-30 15:08:58 +02:00
Aliaksandr Valialkin
d68546aa4a
lib/storage: pre-fetch metricNames for the found metricIDs in Search.Init
...
This should speed up Search.NextMetricBlock loop for big number of found time series.
2020-01-30 15:08:51 +02:00
Aliaksandr Valialkin
680080887d
all: consistently log durations in seconds with millisecond precision
...
This should improve logs readability
2020-01-22 18:28:27 +02:00
Aliaksandr Valialkin
6665f10e7b
lib/{mergeset,storage}: properly update lastAccessTime
in index and data block cache entries
2020-01-20 14:59:47 +02:00
Aliaksandr Valialkin
3748fb24b6
lib/storage: skip recovering timestamps order for lossless compression (PrecisionBits=64)
2020-01-18 00:09:33 +02:00
Aliaksandr Valialkin
f9289b804a
lib/storage: reduce memory allocations when merging metricID sets
2020-01-17 22:10:44 +02:00
Aliaksandr Valialkin
605d588ba6
lib/uint64set: reduce memory usage in Union, Intersect and Subtract methods
...
Iterate items with newly added Set.ForEach method instead of allocating `[]uint64`
slice for all the items before the iteration.
2020-01-15 12:12:49 +02:00
Aliaksandr Valialkin
893b62c682
lib/{mergeset,storage}: fix uint64 counters alignment for 32-bit architectures (GOARCH=386, GOARCH=arm)
2020-01-14 22:47:04 +02:00
Aliaksandr Valialkin
7830c10eb2
lib/{storage,mergeset}: gradually remove stale entries from block cache and index caches
...
This should reduce memory usage in the long run when old blocks and indexes
aren't accessed anymore.
2020-01-14 21:38:44 +02:00
Aliaksandr Valialkin
fc71602039
lib/storage: limit maxRaRowsPerPartition by 500K for any number of rawRowsShardsPerPartition
...
This should reduce write amplification for high ingestion rate on multi-CPU systems
2020-01-04 23:57:31 +02:00
Aliaksandr Valialkin
1825893eef
lib/storage: scale ingestion performance by sharding rawRows on systems with more than 8 CPU cores
2019-12-19 18:18:29 +02:00
Aliaksandr Valialkin
97f70ccda7
lib/storage: optimize bulk import performance when multiple data points are inserted for the same time series
...
This should speed up `/api/v1/import` and make it more scalable on multi-core systems.
2019-12-19 18:18:29 +02:00
Aliaksandr Valialkin
0ed9258545
lib/{mergeset,storage}: log info message when both source and destination part paths from txn are missing during startup
...
This is expected condition after unclean shutdown (OOM, hard reset, `kill -9`) on NFS disk.
2019-12-09 15:44:53 +02:00
Aliaksandr Valialkin
72345eb5bd
lib/{mergeset,storage}: make sure pending transaction deletions are finished before and after runTransactions
call.
...
`runTransactions` call issues async deletions for transaction files. The previously issued transaction deletions
can race with the next call to `runTransactions`. Prevent this by waiting until all the pending transaction
deletions are funished in the beginning of `runTransactions`. Also make sure that all the pending transaction
deletions are finished before returning from `runTransactions`.
2019-12-04 21:40:30 +02:00
Aliaksandr Valialkin
a247236f61
lib/storage: fall back to global inverted index if a filter match too many time series in per-day index
...
Previously this resulted to error message. The query may succeed via search in global index.
2019-12-03 14:48:31 +02:00
Aliaksandr Valialkin
54741ee578
lib/storage: fix printing tag filters in TagFilters.String
2019-12-03 14:25:13 +02:00
Aliaksandr Valialkin
efbc83a13e
lib/storage: print __name__
instead of empty string in user-visible tag filters
2019-12-03 14:18:28 +02:00
Aliaksandr Valialkin
f52874dab4
lib/storage: optimize regexp filter search
2019-12-03 00:43:12 +02:00
Aliaksandr Valialkin
638a5cbb16
lib/{mergeset,storage}: remove transaction files only after the mentioned dirs are really removed
...
This should fix the issue on NFS when incompletely removed dirs may be left
after unclean shutdown (OOM, kill -9, hard reset, etc.), while the corresponding transaction
files are already removed.
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/162
2019-12-02 21:36:31 +02:00
Aliaksandr Valialkin
20812008a7
lib/storage: remove metricID with missing metricID->metricName entry
...
The metricID->metricName entry can be missing in the indexdb after unclean shutdown
when only a part of entries for new time series is written into indexdb.
Recover from such a situation by removing the broken metricID. New metricID
will be automatically created for time series with the given metricName
when new data point will arive to it.
2019-12-02 20:46:44 +02:00
Aliaksandr Valialkin
62a915f2b2
lib/storage: protect from time drift during indexdb rotation
...
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/248
2019-12-02 14:44:42 +02:00
Aliaksandr Valialkin
70b8191fab
lib/storage: generate more human-friendly result in TagFilters.String
2019-12-02 13:52:22 +02:00
Aliaksandr Valialkin
da98703748
app/vmselect/promql: optimize binary search over big number of samples during rollup calculations
2019-11-25 14:01:46 +02:00
Aliaksandr Valialkin
7a4635f853
all: remove the remaining mentions of cluster version
2019-11-21 23:18:22 +02:00
Aliaksandr Valialkin
f652c0f40f
lib/storage: move non-matching tag filters to the top at matchTagFilters
...
This should reduce the amount of useless work needed for matching the next metricNames.
2019-11-21 21:35:13 +02:00
Aliaksandr Valialkin
b8cde6cce1
lib/storage: speed up time series search for queries with multiple filters
...
Use optimized specialized binary search for uint64 metricIDs instead of generic sort.Search.
2019-11-21 18:43:17 +02:00
Aliaksandr Valialkin
5c1e4143e9
lib/storage: verify the number of returned metricIDs in BenchmarkHeadPostingForMatchers
2019-11-20 15:39:28 +02:00
Aliaksandr Valialkin
b6f22a62cb
lib/storage: increase the number of created time series in BenchmarkHeadPostingForMatchers in order to be on par with Promethues
...
The previous commit was accidentally creating 10x smaller number of time series than Prometheus
and this led to invalid benchmark results.
The updated benchmark results:
benchmark old ns/op new ns/op delta
BenchmarkHeadPostingForMatchers/n="1" 272756688 6194893 -97.73%
BenchmarkHeadPostingForMatchers/n="1",j="foo" 138132923 10781372 -92.19%
BenchmarkHeadPostingForMatchers/j="foo",n="1" 134723762 10632834 -92.11%
BenchmarkHeadPostingForMatchers/n="1",j!="foo" 195823953 10679975 -94.55%
BenchmarkHeadPostingForMatchers/i=~".*" 7962582919 100118510 -98.74%
BenchmarkHeadPostingForMatchers/i=~".+" 7589543864 154955671 -97.96%
BenchmarkHeadPostingForMatchers/i=~"" 1142371741 258003769 -77.42%
BenchmarkHeadPostingForMatchers/i!="" 9964150263 159783895 -98.40%
BenchmarkHeadPostingForMatchers/n="1",i=~".*",j="foo" 216995884 10937895 -94.96%
BenchmarkHeadPostingForMatchers/n="1",i=~".*",i!="2",j="foo" 202541348 10990027 -94.57%
BenchmarkHeadPostingForMatchers/n="1",i!="" 486285711 87004349 -82.11%
BenchmarkHeadPostingForMatchers/n="1",i!="",j="foo" 350776931 53342793 -84.79%
BenchmarkHeadPostingForMatchers/n="1",i=~".+",j="foo" 380888565 54256156 -85.76%
BenchmarkHeadPostingForMatchers/n="1",i=~"1.+",j="foo" 89500296 21823279 -75.62%
BenchmarkHeadPostingForMatchers/n="1",i=~".+",i!="2",j="foo" 379529654 46671359 -87.70%
BenchmarkHeadPostingForMatchers/n="1",i=~".+",i!~"2.*",j="foo" 424563825 53915842 -87.30%
VictoriaMetrics uses 1GB of RAM during the benchmark (vs 3.5GB of RAM for Prometheus)
2019-11-18 19:50:58 +02:00
Aliaksandr Valialkin
8a0dfc6220
lib/storage: add BenchmarkHeadPostingForMatchers similar to the benchmark from Prometheus
...
See the corresponding benchmark in Prometheus - 23c0299d85/tsdb/head_bench_test.go (L52)
The benchmark allows performing apples-to-apples comparison of time series search
in Prometheus and VictoriaMetrics. The following article - https://www.robustperception.io/evaluating-performance-and-correctness -
contains incorrect numbers for VictoriaMetrics, since there wasn't this benchmark yet. Fix this.
Benchmarks can be repeated with the following commands from Prometheus and VictoriaMetrics source code roots:
- Prometheus: GOMAXPROCS=1 go test ./tsdb/ -run=111 -bench=BenchmarkHeadPostingForMatchers
- VictoriaMetrics: GOMAXPROCS=1 go test ./lib/storage/ -run=111 -bench=BenchmarkHeadPostingForMatchers
Benchmark results:
benchmark old ns/op new ns/op delta
BenchmarkHeadPostingForMatchers/n="1" 272756688 364977 -99.87%
BenchmarkHeadPostingForMatchers/n="1",j="foo" 138132923 1181636 -99.14%
BenchmarkHeadPostingForMatchers/j="foo",n="1" 134723762 1141578 -99.15%
BenchmarkHeadPostingForMatchers/n="1",j!="foo" 195823953 1148056 -99.41%
BenchmarkHeadPostingForMatchers/i=~".*" 7962582919 8716755 -99.89%
BenchmarkHeadPostingForMatchers/i=~".+" 7589543864 12096587 -99.84%
BenchmarkHeadPostingForMatchers/i=~"" 1142371741 16164560 -98.59%
BenchmarkHeadPostingForMatchers/i!="" 9964150263 12230021 -99.88%
BenchmarkHeadPostingForMatchers/n="1",i=~".*",j="foo" 216995884 1173476 -99.46%
BenchmarkHeadPostingForMatchers/n="1",i=~".*",i!="2",j="foo" 202541348 1299743 -99.36%
BenchmarkHeadPostingForMatchers/n="1",i!="" 486285711 11555193 -97.62%
BenchmarkHeadPostingForMatchers/n="1",i!="",j="foo" 350776931 5607506 -98.40%
BenchmarkHeadPostingForMatchers/n="1",i=~".+",j="foo" 380888565 6380335 -98.32%
BenchmarkHeadPostingForMatchers/n="1",i=~"1.+",j="foo" 89500296 2078970 -97.68%
BenchmarkHeadPostingForMatchers/n="1",i=~".+",i!="2",j="foo" 379529654 6561368 -98.27%
BenchmarkHeadPostingForMatchers/n="1",i=~".+",i!~"2.*",j="foo" 424563825 6757132 -98.41%
The first column (old) is for Prometheus, the second column (new) is for VictoriaMetrics.
As you can see, VictoriaMetrics outperforms Prometheus by more than 100x in almost all the test cases of this benchmark.
Prometheus was using 3.5GB of RAM during the benchmark, while VictoriaMetrics was using 400MB of RAM.
2019-11-18 18:45:06 +02:00
Aliaksandr Valialkin
2ab4cea5e5
lib/storage: always start using per-day inverted index on the next day after its creation
...
The current day could miss entries for already stopped time series before
enabling per-day index.
This fixes the issue when queries return empty results during the first hour after
upgrading to v1.29.*
2019-11-16 12:11:25 +02:00
Aliaksandr Valialkin
119dfd01bb
lib/storage: add vm_cache_size_bytes{type="storage/hour_metric_ids"}
metric
2019-11-13 20:24:21 +02:00
Aliaksandr Valialkin
86a1cd700b
lib/storage: remove inmemory index for recent hour, since it uses too much memory
...
Production workload shows that the index requires ~4Kb of RAM per active time series.
This is too much for high number of active time series, so let's delete this index.
Now the queries should fall back to the index for the current day instead of the index
for the recent hour. The query performance for the current day index should be good enough
given the 100M rows/sec scan speed per CPU core.
2019-11-13 17:58:07 +02:00
Aliaksandr Valialkin
33895d4a0f
lib/storage: add missing increment for recentHourInvertedIndexSearchCalls
2019-11-13 15:13:51 +02:00
Aliaksandr Valialkin
c57eb0ff83
lib/storage: add -disableRecentHourIndex
flag for disabling inmemory index for recent hour
...
This may be useful for saving RAM on high number of time series aka high cardinality
2019-11-13 15:02:51 +02:00
Aliaksandr Valialkin
e14ab14e54
lib/storage: verify marshaling for iidx.pendingMetricIDs in TestInmemoryInvertedIndexMarshalUnmarshal
2019-11-13 13:35:30 +02:00
Aliaksandr Valialkin
ca259864e2
lib/storage: return back inmemory inverted index for recent hour
...
Issues fixed:
- Slow startup times. Now the index is loaded from cache during start.
- High memory usage related to superflouos index copies every 10 seconds.
2019-11-13 13:11:04 +02:00
Aliaksandr Valialkin
01bb3c06c7
lib/storage: remove inmemory inverted index for recent hours
...
Production load with >10M active time series showed it could
slow down VictoriaMetrics startup times and could eat
all the memory leading to OOM.
Remove inmemory inverted index for recent hours until thorough
testing on production data shows it works OK.
2019-11-13 10:45:53 +02:00
Mike Poindexter
f3ad330635
Add test for invalid caching of tsids ( #232 )
...
* Add test for invalid caching of tsids
* Clean up error handling
2019-11-12 15:09:33 +02:00
Oleg Kovalov
b4f44befa3
fix misspelled words ( #229 )
2019-11-12 00:16:42 +02:00
Aliaksandr Valialkin
8e8f98f712
lib/storage: add tests for dateMetricIDCache
2019-11-11 13:21:57 +02:00
Aliaksandr Valialkin
c342f5e37e
lib/storage: eliminate data race when updating lastSyncTime in dateMetricIDCache.Has
2019-11-10 22:04:01 +02:00
Aliaksandr Valialkin
3956003dd0
lib/storage: reorganize the code in getStartDateForPerDayInvertedIndex according to golangci-lint
2019-11-10 00:38:59 +02:00
Aliaksandr Valialkin
ee7765b10d
lib/storage: implement per-day inverted index
2019-11-10 00:02:46 +02:00
Aliaksandr Valialkin
5810ba57c2
lib/storage: use specialized cache for (date, metricID) entries
...
This improves ingestion performance.
2019-11-09 23:06:11 +02:00
Aliaksandr Valialkin
e573ef2126
lib/storage: remove unused code from getMetricIDsForTimeRange: it is expected that time range is always non-zero
2019-11-09 19:03:34 +02:00
Aliaksandr Valialkin
823fa085ef
lib/storage: properly set time range when deleting time series
2019-11-09 18:49:49 +02:00
Aliaksandr Valialkin
695c1dc5eb
lib/storage: obtain all the time series ids from (tag->metricIDs) rows instead of (metricID->TSID) rows, since this much faster
2019-11-09 18:04:33 +02:00
Aliaksandr Valialkin
cdbe848102
lib/storage: small code prettifying
2019-11-09 14:19:52 +02:00
Aliaksandr Valialkin
bb08bab263
lib/storage: inmemoryInvertedIndex prettifying
2019-11-09 14:19:41 +02:00
Aliaksandr Valialkin
6ad7fe8eeb
lib/storage: export vm_new_timeseries_created_total
metric for determining time series churn rate
2019-11-08 21:21:07 +02:00
Aliaksandr Valialkin
9ea549ed24
lib/storage: sync with cluster changes
2019-11-08 21:21:07 +02:00
Aliaksandr Valialkin
d888b21657
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 21:21:07 +02:00
Aliaksandr Valialkin
543dc8d337
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 19:49:34 +02:00
Aliaksandr Valialkin
e472f0b23b
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 14:28:11 +02:00
Aliaksandr Valialkin
c51ca04a43
lib/storage: take into account the requested time range when caching TSIDs for the given tag filters
2019-11-06 14:28:11 +02:00
Aliaksandr Valialkin
e37f06dc52
lib/storage: dump incorrectly sorted items on a single line; this should simplify error reporting
2019-11-05 18:44:22 +02:00
Aliaksandr Valialkin
5c2099ecfe
lib/storage: return back finalPartsToMerge from 2 to 3 in order to prevent from excessive merges in old partitions
2019-11-05 17:27:48 +02:00
Aliaksandr Valialkin
885ba17905
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 17:27:48 +02:00
Aliaksandr Valialkin
b9a06e8e74
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 14:19:13 +02:00
Aliaksandr Valialkin
30c8301b11
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 14:19:06 +02:00
Aliaksandr Valialkin
e53f9e553d
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 14:19:01 +02:00
Aliaksandr Valialkin
3c90d77858
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 01:07:19 +02:00
Artem Navoiev
478767d0ed
add unittests for bytesutil and storage ( #221 )
2019-11-04 00:54:46 +02:00
Aliaksandr Valialkin
02e0b19a62
lib/storage: tune the returned value from adjustMaxMetricsAdaptive
2019-11-04 00:44:37 +02:00
Aliaksandr Valialkin
6be4456d88
lib/{storage,uint64set}: add Set.Union() function and use it
2019-11-04 00:44:37 +02:00
Aliaksandr Valialkin
9becc26f4b
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 12:33:34 +02:00
Aliaksandr Valialkin
c62399eb3e
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 02:27:11 +02:00
Aliaksandr Valialkin
d18ea0c95b
app/vmstorage: add -bigMergeConcurrency
and -smallMergeConcurrency
flags for tuning the maximum number of CPU cores used during merges
2019-10-31 16:19:13 +02:00
Aliaksandr Valialkin
e0b292c6de
lib/storage: small cleanup in Storage.add
2019-10-31 14:30:34 +02:00
Aliaksandr Valialkin
26d570bb3a
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 02:04:56 +02:00
Aliaksandr Valialkin
2e2eff90d5
lib/{mergeset,storage}: limit the maximum number of concurrent merges; leave smaller number of parts during final merge
2019-10-29 12:45:28 +02:00
hanzai
b3c946e35a
warns during rows addition ( #214 )
2019-10-20 23:41:07 +03:00
Aliaksandr Valialkin
e83fe938c8
all: make fmt
2019-10-17 20:04:34 +03:00
Aliaksandr Valialkin
97ce4e03a5
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 18:23:23 +03:00
Aliaksandr Valialkin
f6334bffa1
lib/storage: harden the check that the original items are sorted after mergeTagToMetricIDsRows fails to preserve sort order
2019-10-09 12:13:17 +03:00
Aliaksandr Valialkin
2abd5154e0
lib/storage: typo fix in comment to maxRowsPerSmallPart.
2019-10-08 18:51:20 +03:00
Aliaksandr Valialkin
c1cf7d9f93
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 16:27:35 +03:00
Aliaksandr Valialkin
0fa6df94a2
lib/storage: optimize TSID comparison
2019-09-26 14:16:02 +03:00
Aliaksandr Valialkin
c39355921e
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 13:13:41 +03:00
Aliaksandr Valialkin
0db9fcedd5
lib/storage: properly match labels against regexp with (?i)
flag
...
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/161
2019-09-26 11:03:10 +03:00
Aliaksandr Valialkin
2444433d83
lib/storage: add missing break in removeDuplicateMetricIDs
2019-09-25 18:23:43 +03:00
Aliaksandr Valialkin
ea4c828bae
lib/storage: remove duplicate MetricIDs in tag->metricIDs
items before writing them into inverted index
2019-09-25 17:55:13 +03:00
Aliaksandr Valialkin
aebc45ad26
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 14:02:15 +03:00
Aliaksandr Valialkin
b986516fbe
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 21:17:55 +03:00
Aliaksandr Valialkin
ef2296e420
lib/storage: typo fix: return dstData instead of data from mergeTagToMetricIDsRows
2019-09-24 19:32:34 +03:00
Aliaksandr Valialkin
a6086cde78
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 00:49:51 +03:00
Aliaksandr Valialkin
c9063ece66
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 22:35:15 +03:00
Aliaksandr Valialkin
4e26ad869b
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 20:43:13 +03:00
Aliaksandr Valialkin
0adebae1f8
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 19:21:33 +03:00
Aliaksandr Valialkin
0686ac52c3
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 22:06:41 +03:00
Aliaksandr Valialkin
a544f49c2b
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 11:54:10 +03:00
Aliaksandr Valialkin
a84fe76677
lib/storage: use sort.Sort instead of sort.slice in getSortedMetricIDs
2019-09-19 20:07:22 +03:00
Aliaksandr Valialkin
3a697a935a
lib/storage: skip duplicate call to intersectMetricIDsWithTagFilter on zero successful intersects
2019-09-19 17:49:56 +03:00
Aliaksandr Valialkin
3d83f5d334
lib/storage: mark tag filter returning errFallbackToMetricNameMatch as useless
...
This will save CPU on subsequent calls for this filter
2019-09-18 19:10:32 +03:00
Aliaksandr Valialkin
8d35718dc6
lib/storage: properly construct keys for uselessTagFiltersCache and register useless negative tag filters there
2019-09-17 23:20:27 +03:00
Aliaksandr Valialkin
bad53e4207
lib/mergeset: dynamically calculate the maximum number of items per part, which can be cached in OS page cache
2019-09-11 14:53:45 +03:00
Aliaksandr Valialkin
9eb5de334f
lib/storage: typo fix
2019-09-04 19:58:01 +03:00
Aliaksandr Valialkin
16dd145586
lib/storage: remove duplicate tag keys on MetricName.Marshal
call
...
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/172
2019-09-04 18:13:45 +03:00
Aliaksandr Valialkin
e1d76ec1f3
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 15:08:35 +03:00
Aliaksandr Valialkin
9196c085a7
all: port to FreeBSD on GOARCH=amd64
2019-08-28 01:19:23 +03:00
Aliaksandr Valialkin
2655220c58
lib/storage: go fmt
2019-08-27 14:29:51 +03:00
Aliaksandr Valialkin
bf915fc0db
lib/storage: report proper maxMetrics limit when more than -search.maxUniqueTimeseries series match the given filters
2019-08-27 14:21:42 +03:00
Aliaksandr Valialkin
2fc157ff7a
lib/storage: properly handle (?i)
in the tag filter regexp
...
Fixes https://github.com/VictoriaMetrics/VictoriaMetrics/issues/161
2019-08-26 00:44:45 +03:00
Aliaksandr Valialkin
0dc0006f34
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 15:31:47 +03:00
Aliaksandr Valialkin
4b688fffee
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 14:41:12 +03:00
Aliaksandr Valialkin
1402a6b981
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 14:41:12 +03:00
Aliaksandr Valialkin
3308279c4e
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 13:47:32 +03:00
Aliaksandr Valialkin
8c03a8c4b4
app/vminsert: allow setting the maximum number of labels per time series via -maxLabelsPerTimeseries
2019-08-23 08:45:26 +03:00
Aliaksandr Valialkin
380cae23a0
lib/storage: add benchmarks for regexp filter match / mismatch
...
These benchmarks allow estimate the performance of regexp filters in promql
2019-08-22 16:36:42 +03:00
Aliaksandr Valialkin
4f738c8a15
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 16:04:21 +03:00
Aliaksandr Valialkin
c23b66a1ad
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 12:46:33 +03:00
Aliaksandr Valialkin
5b41122292
lib/storage: properly cache tagFilters -> TSIDs entries from historical index
2019-08-14 02:29:58 +03:00
Aliaksandr Valialkin
964c296f96
lib/storage: compress contents of cache for tagFilters -> TSIDs
...
This should increase cache capacity
2019-08-14 02:29:52 +03:00
Aliaksandr Valialkin
09fc6e22e5
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 21:39:34 +03:00
Aliaksandr Valialkin
ec1b185991
lib/storage: remove broken BenchmarkIndexDBSearchTSIDs
2019-08-13 20:22:08 +03:00
Aliaksandr Valialkin
0967683ae9
lib: move common code for creating flock.lock file into fs.CreateFlockFile
2019-08-13 01:45:46 +03:00
Aliaksandr Valialkin
5d8d110010
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 15:02:55 +03:00
Aliaksandr Valialkin
0b488f1e37
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 15:40:07 +03:00
Aliaksandr Valialkin
b8bb74ffc6
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 15:08:33 +03:00
Aliaksandr Valialkin
8822079b77
lib/storage: properly reset partSearch.fetchData
in partSearch.reset
2019-08-05 09:56:06 +03:00
Aliaksandr Valialkin
47e4b50112
app/vmselect: optimize /api/v1/series
by skipping storage data
...
Fetch and process only time series metainfo.
2019-08-04 23:01:28 +03:00
Aliaksandr Valialkin
c14fd6c43f
lib/storage: typo fixes after a77e88db7d
2019-07-30 15:38:52 +03:00
Aliaksandr Valialkin
a77e88db7d
lib/storage: fix matching against tag filter with empty name
...
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/137
2019-07-30 15:15:09 +03:00
Aliaksandr Valialkin
f586e1f83c
lib/storage: add metrics for calculating skipped rows outside the retention
...
The metrics are:
- vm_too_big_timestamp_rows_total
- vm_too_small_timestamp_rows_total
2019-07-26 14:11:01 +03:00
Aliaksandr Valialkin
e75d5f47c4
lib/storage: remove unused function isTooBigTimeRangeForDateMetricIDs
2019-07-12 02:28:23 +03:00
Aliaksandr Valialkin
fc90ebf43c
lib/storage: do not reduce maxMetrics
on time ranges exceeding maxDaysForDateMetricIDs
...
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/95
2019-07-12 02:20:34 +03:00
Aliaksandr Valialkin
2bd1a01d1a
lib/storage: do not pollute inverted index with data for samples outside the retention period
2019-07-11 17:04:56 +03:00
Aliaksandr Valialkin
d031e04023
lib/storage: use fast path for orSuffix when searching for metricIDs against plain tag value
2019-07-11 14:48:37 +03:00
Aliaksandr Valialkin
43ea4ce428
lib/storage: remember and skip individual tag filters matching too many metrics
...
This saves CPU time by skipping useless matching for individual tag filters.
2019-07-11 14:48:30 +03:00
Aliaksandr Valialkin
1fe6d784d8
all: consistency renaming: bytesSize -> sizeBytes
2019-07-10 00:47:36 +03:00
Aliaksandr Valialkin
56c154f45b
all: add vm_data_size_bytes
metrics for easy monitoring of on-disk data size and on-disk inverted index size
2019-07-04 19:42:30 +03:00
Aliaksandr Valialkin
2ecb117082
lib/storage: skip non-matching metricIDs in sortedFilter
...
This should improve performance for big sorteFilter lists.
2019-06-29 13:48:32 +03:00
Aliaksandr Valialkin
c1be1e4342
lib/storage: optimize time series search by regexp filter
...
This should improve search speed on label filters like `{foo=~"bar.+baz"}`
2019-06-27 16:17:43 +03:00
Aliaksandr Valialkin
683bf2a11f
lib/storage: make sure non-nil args are passed to openIndexDB
2019-06-25 20:10:04 +03:00
Aliaksandr Valialkin
eb2283a029
lib/storage: reduce too big maxMetrics in getTagFilterWithMinMetricIDsCountAdaptive
...
This should improve performance on inverted index search for big amount of unique time series
when big -search.maxUniqueTimeseries is set.
2019-06-25 19:55:27 +03:00
Aliaksandr Valialkin
e8377011ab
lib/storage: free up memory from caches owned by indexDB when it is deleted
2019-06-25 14:42:44 +03:00
Aliaksandr Valialkin
33ea2120c3
lib/storage: use unversioned keys for tag cache in extDB
...
Data in ExtDB cannot be changed, so it is OK to use unversioned keys for tag cache.
This should improve performance for index lookups over big amount of time series.
2019-06-25 13:08:58 +03:00
Aliaksandr Valialkin
cf63669303
lib/storage: skip searching in extDB if it doesn't contain items for the given time range
...
This should improve inverted index search performance for big amount
of unique time series when the search is performed only on recent data.
2019-06-25 13:00:37 +03:00
Aliaksandr Valialkin
af2ceaaa0b
lib/storage: mention source parts on merge error
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This should improve determining broken source part.
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/76
2019-06-24 14:08:43 +03:00
Aliaksandr Valialkin
80db24386e
lib/storage: typo fixes found by golangci-lint; updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/69
2019-06-20 14:37:55 +03:00
Aliaksandr Valialkin
a78b3dba7f
app/vmstorage: add vm_cache_entries{type="storage/hour_metric_ids"}
metric for tracking active time series count
2019-06-19 18:36:47 +03:00
Aliaksandr Valialkin
d2c801029b
lib/storage: persist metric ids for the current and the previous hour on graceful shutdown
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This should improve performance after restart when the db contains a lot of time series
with high time series churn (i.e. metrics from Kubernetes with many pods and frequent deployments)
2019-06-14 07:55:14 +03:00
Aliaksandr Valialkin
419197ba08
lib/fs: consolidate *RemoveAll* funcs into a single MustRemoveAll func
...
The func syncs parent dir in order to persist directory removal
in the event of power loss
2019-06-12 01:53:46 +03:00
Aliaksandr Valialkin
935bfd7a18
lib/fs: consistency renaming SyncPath -> MustSyncPath, since it doesnt return error
2019-06-11 23:13:49 +03:00
Aliaksandr Valialkin
20fc0e0e54
lib/{storage,mergeset}: sync filenames inside part when finalizing the part
...
Fixes https://github.com/VictoriaMetrics/VictoriaMetrics/issues/63
2019-06-11 21:51:13 +03:00
Aliaksandr Valialkin
ac7b186f13
all: try hard removing directory with contents
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Fixes https://github.com/VictoriaMetrics/VictoriaMetrics/issues/61
2019-06-11 01:57:59 +03:00
Aliaksandr Valialkin
cbe692f0e2
app/vmselect: add /api/v1/labels/count
handler for quick detection of labels with the maximum number of distinct values
2019-06-10 19:55:38 +03:00
Aliaksandr Valialkin
7b6623558f
lib/storage: skip adaptive searching for tag filter matching the minimum number of metrics if the identical previous search didn't found such filter
...
This should improve speed for searching metrics among high number of time series
with high churn rate like in big Kubernetes clusters with frequent deployments.
2019-06-10 14:07:39 +03:00
Aliaksandr Valialkin
a1351bbaee
lib/storage: factor out getTagFilterWithMinMetricIDsCountAdaptive from updateMetricIDsForTagFilters
2019-06-10 13:26:44 +03:00
Aliaksandr Valialkin
b4d707d9bb
lib/storage: give clearer names to more functions
2019-06-10 13:01:23 +03:00
Aliaksandr Valialkin
bee7298f81
lib/storage: give more clear names to functions
2019-06-10 12:50:44 +03:00
Aliaksandr Valialkin
dbd217b8f0
lib/storage: test GetSeriesCount
2019-06-10 12:43:34 +03:00
Aliaksandr Valialkin
4d936b1524
lib/storage: make getSeriesCount func indexSearch method
2019-06-10 12:29:11 +03:00
Aliaksandr Valialkin
d37924900b
lib/storage: optimize time series lookup for recent hours when the db contains many millions of time series with high churn rate (aka frequent deployments in Kubernetes)
2019-06-09 19:13:56 +03:00
Aliaksandr Valialkin
28f6c36ab4
lib/storage: tune updating a map with today`s metric ids
...
- Increase update iterval from 1s to 10s. This should reduce CPU usage
for large amounts of metric ids with constant churn.
- Reduce pendingTodayMetricIDsLock lock duration during the update.
2019-06-02 21:58:16 +03:00
Aliaksandr Valialkin
4794f894a4
lib/storage: speed up checking metricID existence in the list for the current date
2019-06-02 18:34:08 +03:00
Aliaksandr Valialkin
e307a4d92c
lib/timerpool: use timer pool in concurrency limiters
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This should reduce the number of memory allocations in highly loaded system
2019-05-28 17:20:10 +03:00
Aliaksandr Valialkin
54fb8b21f9
all: fix misspellings
2019-05-25 21:51:11 +03:00
Aliaksandr Valialkin
d6523ffe90
Makefile: add -s flag to go fmt
in make fmt
command
2019-05-25 21:43:35 +03:00
Aliaksandr Valialkin
1836c415e6
all: open-sourcing single-node version
2019-05-23 00:18:06 +03:00