Aliaksandr Valialkin
d36fdbe537
lib/storage: deduplicate samples more thoroughly
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Previously some duplicate samples may be left on disk for time series with high churn rate.
This may result in higher disk space usage.
2021-12-15 16:00:30 +02:00
Aliaksandr Valialkin
bc3923111b
lib/storage: return dedup interval in milliseconds from GetDedupInterval()
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This removes duplicate .Milliseconds() calls after GetDedupInterval() calls.
2021-12-15 13:27:27 +02:00
Aliaksandr Valialkin
cdfe854c9b
lib/storage: explicitly pass dedupInterval to DeduplicateSamples() and deduplicateSamplesDuringMerge()
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This improves the code readability and debuggability, since the output of these functions
stops depending on global state.
2021-12-14 20:52:29 +02:00
Aliaksandr Valialkin
c922c7af9a
lib/storage: convert alternate regexps into Graphite wildcards inside __graphite__ pseudo-label
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For example, `{__graphite__=~"foo.(bar|baz)"}` is automatically converted to `{__graphite__=~"foo.{bar,baz}"}` before execution.
This allows using multi-value Grafana template variables such as `{__graphite__=~"foo.($app)"}`.
2021-12-14 19:55:59 +02:00
Aliaksandr Valialkin
9aa9b081a4
app/vminsert: add -maxLabelValueLen command-line flag
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See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1908
2021-12-06 11:42:24 +02:00
Aliaksandr Valialkin
ab4be24397
app/vmstorage: export vm_cache_size_max_bytes metrics for determining capacity of various caches
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The vm_cache_size_max_bytes metric can be used for determining caches which reach their capacity via the following query:
vm_cache_size_bytes / vm_cache_size_max_bytes > 0.9
2021-12-02 10:30:01 +02:00
Aliaksandr Valialkin
2e43cd9d62
lib/storage: do not take into account -storage.minFreeDiskSpaceBytes during background merges
2021-12-01 12:30:03 +02:00
Aliaksandr Valialkin
71c0f7cce3
lib/storage: take into account -storage.minFreeDiskSpaceBytes when performing big merges
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Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/269
2021-11-30 12:56:53 +02:00
Aliaksandr Valialkin
93511b4be7
lib/storage: log a warning when the -storageDataPath has less than -storage.minFreeDiskSpaceBytes
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This should improve the debuggability of the readonly feature.
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1727
2021-10-19 23:58:09 +03:00
Aliaksandr Valialkin
a7a1305395
lib/storage: fix unaligned access on 32-bit architectures.
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The bug has been introduced at a171916ef5
2021-10-08 19:38:20 +03:00
Aliaksandr Valialkin
4fddcf4c83
app/{vminsert,vmstorage}: follow-up after a171916ef5
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Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/269
2021-10-08 14:09:51 +03:00
Nikolay
a171916ef5
Adds read-only mode for vmstorage node ( #1680 )
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* adds read-only mode for vmstorage
https://github.com/VictoriaMetrics/VictoriaMetrics/issues/269
* changes order a bit
* moves isFreeDiskLimitReached var to storage struct
renames functions to be consistent
change protoparser api - with optional storage limit check for given openned storage
* renames freeSpaceLimit to ReadOnly
2021-10-08 12:52:56 +03:00
Aliaksandr Valialkin
d15d036a5a
lib/storage: properly handle {__name__=~"prefix(suffix1|suffix2)",other_label="..."} queries
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They were broken in the commit 00cbb099b6https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1644
2021-09-23 21:52:31 +03:00
Aliaksandr Valialkin
1493461244
lib/storage: follow up after 00cbb099b6
2021-09-14 14:23:02 +03:00
faceair
61a51f7c15
lib/storage: optimize convert multiple values regexp filter to composite tag filter ( #1610 )
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* lib/storage: optimize convert multiple values regexp filter to composite tag filter
* Apply suggestions from code review
Co-authored-by: Aliaksandr Valialkin <valyala@gmail.com>
2021-09-14 14:23:01 +03:00
Aliaksandr Valialkin
6d6cf1b6e0
lib/storage: verify that the tsidsFound contain the needed tsids in tests added at f4dead529f
2021-09-11 11:02:56 +03:00
Aliaksandr Valialkin
c2f37f049b
lib/storage: properly search series by multiple tag filters matching empty labels such as foo{bar=~"baz|",x=~"y|"}
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Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1601
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/395
2021-09-09 21:12:53 +03:00
Aliaksandr Valialkin
c4df601f43
lib/promscrape: add the ability to limit the number of unique series per each scrape target
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The number of series per target can be limited with the following options:
* Global limit with `-promscrape.maxSeriesPerTarget` command-line option.
* Per-target limit with `max_series: N` option in `scrape_config` section.
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1561
2021-09-01 16:08:12 +03:00
Aliaksandr Valialkin
b885bd9b7d
lib/{mergeset,storage}: improve the detection of the needed free space for background merge
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This should prevent from possible out of disk space crashes during big merges.
See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1560
2021-08-25 10:01:09 +03:00
Aliaksandr Valialkin
c1f81f08d4
all: add support for Prometheus staleness markers
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Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1526
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/748
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1509
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1530
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/845
2021-08-13 12:13:15 +03:00
Aliaksandr Valialkin
c473d8ffe1
li/storage: re-use the per-day inverted index search code for searching in global index
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This allows removing a big pile of outdated code for global index search.
This may help https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1486
2021-07-30 10:28:20 +03:00
Aliaksandr Valialkin
1950f57316
lib/storage: yet another attempt to properly determine disk space shortage, which prevents from optimal merges
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Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1373
2021-07-27 12:03:31 +03:00
Aliaksandr Valialkin
9d3f9da5ad
lib/storage: make sure the second call to DeduplicateSamples and deduplicateSamplesDuringMerge doesnt change samples
2021-07-15 12:18:38 +03:00
Aliaksandr Valialkin
e992754e79
lib/storage: remove cache directory if it contains reset_cache_on_startup file
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See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1447
2021-07-13 17:59:51 +03:00
Aliaksandr Valialkin
3f705fe8d7
lib/storage: properly limit the size of storage/date_metricID cache
2021-07-12 14:25:28 +03:00
Aliaksandr Valialkin
ef3c58d7a3
lib/storage: properly determine when the deduplication is needed in needsDedup
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Previously needsDedup() could return true if the de-duplication wasn't needed for the following case:
d < interval
/ \
| v | v |
interval interval
Now it properly returns false for this case
2021-07-12 10:54:51 +03:00
Aliaksandr Valialkin
74ace9340d
lib/storage: periodically reset prefetchedMetricIDs cache in order to limit its size under high churn rate
2021-07-07 10:59:39 +03:00
Aliaksandr Valialkin
a846febc89
Revert "lib/uint64set: allow reusing bucket16 structs inside uint64set.Set via uint64set.Release method"
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This reverts commit 7c6d3981bf
2021-07-06 18:26:56 +03:00
Aliaksandr Valialkin
b805a675f3
lib/{mergeset,storage}: switch from sync.Pool to chan-based pool for inmemoryPart objects
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This should reduce memory usage on systems with big number of CPU cores,
since every inmemoryPart object occupies at least 64KB of memory and sync.Pool maintains
a separate pool inmemoryPart objects per each CPU core.
Though the new scheme for the pool worsens per-cpu cache locality, this should be amortized
by big sizes of inmemoryPart objects.
2021-07-06 16:33:25 +03:00
Aliaksandr Valialkin
d8e7c1ef27
lib/uint64set: allow reusing bucket16 structs inside uint64set.Set via uint64set.Release method
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This reduces the load on memory allocator in Go runtime in production workload.
2021-07-06 16:33:24 +03:00
Aliaksandr Valialkin
22c6e64bbc
lib/storage: consistency renaming: tagCache -> tagFiltersCache
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This improves code readability
2021-07-06 11:03:30 +03:00
Aliaksandr Valialkin
21abf487c3
lib/workingsetcache: properly update stats for requests and cache misses
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Previously the stats for cache misses could be improperly counted, because it had inflated cache misses
if the entry was missing in the curr cache, but was existing in the prev cache.
The same applies to cache requests - they were inflated if the entry was missing in the curr cache.
2021-07-06 10:54:38 +03:00
Aliaksandr Valialkin
51516b96e6
lib/storage: tune cache sizes according to production workload
2021-07-05 15:14:45 +03:00
Aliaksandr Valialkin
f12f97daa1
lib/{storage,mergeset}: increase cache timeout for data and index blocks from a minute to two minutes
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One minute cache timeout result in slower queries in some production workloads where the interval
between query execution is in the range 1 minute - 2 minutes.
2021-07-05 14:25:59 +03:00
Aliaksandr Valialkin
8055439fe4
lib/storage: properly detect free disk space shortage during data merge
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Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1373
2021-07-02 17:42:23 +03:00
Aliaksandr Valialkin
bced9ee666
lib/{mergeset,storage}: reduce the maximum lifetime for cached indexdb and data blocks from 2 minutes to a minute
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This should reduce memory usage on a system with high number of active time series and a high churn rate.
One minute is enough for caching the blocks needed for repeated queries (e.g. alerting rules, recording rules and dashboard refreshes).
2021-06-29 19:57:53 +03:00
Aliaksandr Valialkin
609ad6d9bf
lib/storage: put indexDBName into the key for dateTagFilter cache and for uselessTagFilters cache
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This should prevent from stats overwriting when the previous indexdb is queried.
2021-06-29 13:11:32 +03:00
Aliaksandr Valialkin
b84aea1e6e
lib/protoparser/clusternative: do not pool unmarshalWork structs, since they can occupy big amounts of memory (more than 100MB per each struct)
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This should reduce memory usage for vmstorage under high ingestion rate when the vmstorage runs on a system with big number of CPU cores
2021-06-23 15:45:08 +03:00
Aliaksandr Valialkin
a22f37599b
lib/storage: tune tag filters search logic
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Tune the logic according to the logs provided at https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1338#issuecomment-864293624
The previous logic had a race when multiple concurrent queries execute the same tag filter without prior stats.
This could result in incorrectly stored stats for such tag filter, which then could result in non-optimal sorting of tag filters
for further queries.
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1338
2021-06-23 13:30:36 +03:00
Aliaksandr Valialkin
a207be3ffb
lib/storage: fix infinite loop introduced in aa9b56a046
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Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1338
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1244
2021-06-17 14:27:30 +03:00
Aliaksandr Valialkin
0efd37cec1
lib/{mergeset,storage}: reduce the number of fsync calls on data ingestion path on systems with many cpu cores
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VictoriaMetrics maintains a buffer per CPU core for the ingested data. These buffers are flushed to disk every second.
These buffers are flushed to disk in parallel starting from the commit 56b6b893cehttps://github.com/VictoriaMetrics/VictoriaMetrics/issues/1338#issuecomment-863046999 .
This commit merges the per-CPU buffers into bigger in-memory buffers before flushing them to disk.
This should reduce the rate of fsync syscalls and, consequently, the write disk IO on systems with many CPU cores.
This should help https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1338
See also https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1244
2021-06-17 13:51:42 +03:00
Aliaksandr Valialkin
b133de1e37
lib/storage: move deletedMetricIDs set from indexDB to Storage
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This makes consitent the list of deleted metricIDs when it is used from both the current indexDB and the previous indexDB (aka extDB).
This should fix the issue, which could lead to storing new samples under deleted metricIDs after indexDB rotation.
See more details at https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1347#issuecomment-861232136 .
Thanks to @tangqipengleoo for the initial analysis and the pull request - https://github.com/VictoriaMetrics/VictoriaMetrics/pull/1383 .
This commit resolves the issue in more generic way compared to https://github.com/VictoriaMetrics/VictoriaMetrics/pull/1383 .
The downside of the commit is the deletedMetricIDs set isn't cleaned from the metricIDs outside the retention. It needs app restart.
This should be OK in most cases.
2021-06-15 15:07:54 +03:00
Aliaksandr Valialkin
ce10bdc82a
lib/storage: reset cache on disk during series deletion and during indexdb rotation
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This should prevent from inconsistent behavior (aka partially missing data for some time series) after unclean shutdown.
See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1347
2021-06-11 12:54:36 +03:00
Aliaksandr Valialkin
eb335d2c29
lib/storage: consistency renaming: getMaxRawRowsPerPartition -> getMaxRawRowsPerShard
2021-06-11 10:52:31 +03:00
Aliaksandr Valialkin
d06c0e7a94
lib/storage: reduce the amounts of memory which can be occupied by rawRow items during data ingestion on a system with many CPU cores
2021-06-11 10:49:02 +03:00
Aliaksandr Valialkin
1e4a64844d
lib/storage: properly account the number of loops spent when matching for or suffixes
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This may help https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1338
2021-06-08 13:07:14 +03:00
Aliaksandr Valialkin
fc2565b4ee
lib/storage: reduce memory allocations when syncing dateMetricIDCache
2021-06-03 16:20:02 +03:00
Aliaksandr Valialkin
10b2855949
lib/storage: fix spelling typo: borken->broken
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Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1336
2021-05-27 12:09:17 +03:00
Aliaksandr Valialkin
1c16cbacf5
lib/storage: do not stop data ingestion on the first error in Storage.AddRows
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Continue data ingestion for the rest of blocks.
2021-05-24 15:32:24 +03:00
Aliaksandr Valialkin
2601844de3
lib/storage: limit the number of rows per each block in Storage.AddRows()
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This should reduce memory usage when ingesting big blocks or rows.
2021-05-24 15:32:24 +03:00
