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Author SHA1 Message Date
Aliaksandr Valialkin
956fdd89d3 app/vmselect/promql: take into account the previous point when calculating max_over_time and min_over_time 
This lines up with `first_over_time` function used in `rollup_candlestick`, so `rollup=low` always returns
the minimum value.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/204
 2019-10-08 12:30:05 +03:00
Alexander Danilov
1bc6377863 Improve documentation a little bit 2019-10-07 22:18:40 +03:00
Artem Navoiev
1e2c511747 Add regression test for query apo 
Part of https://github.com/VictoriaMetrics/VictoriaMetrics/issues/187
cover:
- https://github.com/VictoriaMetrics/VictoriaMetrics/issues/153
- https://github.com/VictoriaMetrics/VictoriaMetrics/issues/150
 2019-10-07 22:18:04 +03:00
Aliaksandr Valialkin
0eeffb910f vendor: make vendor-update 2019-10-06 15:47:23 +03:00
Aliaksandr Valialkin
4ba86f501a vendor: update github.com/VictoriaMetrics/metrics from v1.7.1 to v1.7.2 2019-10-06 11:20:45 +03:00
Aliaksandr Valialkin
fdc5cfd838 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 12:25:40 +03:00
Artem Navoiev
a116f5e7c1 Add regression test for query apo (#194) 
Part of https://github.com/VictoriaMetrics/VictoriaMetrics/issues/187
cover:
- https://github.com/VictoriaMetrics/VictoriaMetrics/issues/184
 2019-09-30 11:25:54 +03:00
Aliaksandr Valialkin
4e9e1ca0f7 app/vmselect/netstorage: hint the OS that tmpBlocksFile is read almost sequentially 
This became the case after b7ee2e7af2 .
 2019-09-30 00:11:14 +03:00
Aliaksandr Valialkin
c1d3705be0 app/vmselect/netstorage: marshal block outside tmpBlocksFile.WriteBlock 
This allows re-using the destination buffer for marshaling in the outer loop.
 2019-09-28 21:07:13 +03:00
Aliaksandr Valialkin
b7ee2e7af2 app/vmselect/netstorage: reduce the number of disk seeks when the query processes big number of time series 2019-09-28 21:07:09 +03:00
Aliaksandr Valialkin
67d44b0845 app/vmselect/promql: do not generate timestamps for NaN values in timestamp function according to Prometheus logic 2019-09-27 18:54:43 +03:00
Artem Navoiev
1e6ae9eff4 Add regression test for duplicated labels and series 
Part of https://github.com/VictoriaMetrics/VictoriaMetrics/issues/187
cover:
- https://github.com/VictoriaMetrics/VictoriaMetrics/issues/155
- https://github.com/VictoriaMetrics/VictoriaMetrics/issues/172
 2019-09-27 16:52:16 +03:00
Aliaksandr Valialkin
fa81f82714 deployment/docker: switch Go builder image from v1.13.0 to v1.13.1 2019-09-26 17:09:40 +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
Artem Navoiev
cf4786f34a add test for https://github.com/VictoriaMetrics/VictoriaMetrics/issues/161 2019-09-26 12:45:19 +03:00
Aliaksandr Valialkin
3e67862676 README.md: typo fix 2019-09-26 11:03:14 +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
391530bb74 README.md: mention recommended ext4 options for mkfs.ext4 when creating multi-TB partition 2019-09-25 23:52:43 +03:00
Aliaksandr Valialkin
60c5b368bc README.md: tiny updates 2019-09-25 23:29:55 +03:00
Aliaksandr Valialkin
26dc21cf64 app/vmselect/promql: add increases_over_time and decreases_over_time functions 
`increases_over_time(q[d])` returns the number of `q` increases during the given duration `d`.
`decreases_over_time(q[d])` returns the number of `q` decreases during the given duration `d`.
 2019-09-25 20:38:44 +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
2cb811b42f lib/uint64set: optimize Set.AppendTo 2019-09-25 00:34:17 +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
0772191975 lib/mergeset: detect whether we are in test by executable suffix 2019-09-22 23:12:15 +03:00
Aliaksandr Valialkin
48999e5396 lib/workingsetcache: remove data race when resetting c.misses 2019-09-22 19:36:49 +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
267efde5ae README.md: update troubleshooting and tuning sections according to recent questions from our users 2019-09-22 19:12:24 +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
68722c3c74 lib/encoding: optimize UnmarshalUint* and UnmarshalInt* 2019-09-20 13:08:16 +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
d32f88c378 app/vminsert/opentsdbhttp: remove FATAL prefix from logger.Fatalf errors for the sake of consistency with other logger.Fatalf calls 2019-09-19 22:15:59 +03:00
Aliaksandr Valialkin
00cfb2d2b9 lib/mergeset: rename misleading mergeSmallParts to mergeExistingParts 2019-09-19 21:48:20 +03:00
Aliaksandr Valialkin
37dc223e25 lib/mergeset: use sort.IsSorted instead of sort.SliceIsSorted in inmemoryBlock.isSorted in order to reduce memory allocations 2019-09-19 20:13:08 +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
51a21c7d4b lib/mergeset: fill partHeader.firstItem on first block flush 2019-09-19 17:48:09 +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
6f3b2fd600 deployment/docker/docker-compose.yml: update Prometheus and Grafana image tags 
Prometheus: from v2.10.0 to v2.12.0
Grafana: v6.2.1 from to v6.3.5
 2019-09-18 18:29:09 +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
33975513d0 vendor: update github.com/valyala/gozstd from v1.6.1 to v1.6.2 2019-09-16 21:50:49 +03:00
Aliaksandr Valialkin
63f2b539df vendor: make vendor-update 2019-09-13 22:48:56 +03:00
Aliaksandr Valialkin
9428ec9c9f deployment/docker: remove file system paths from the compiled binary 2019-09-13 22:45:59 +03:00
Aliaksandr Valialkin
0c8057924f lib/mergeset: properly check for sorted block headers 
Fix a typo for https://github.com/VictoriaMetrics/VictoriaMetrics/issues/181
 2019-09-13 21:59:29 +03:00