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235 commits

Author SHA1 Message Date
Aliaksandr Valialkin
494ad0fdb3 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 18:08:58 +02:00
Aliaksandr Valialkin
633dd81bb5 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 15:10:12 +02:00
Aliaksandr Valialkin
f1620ba7c0 lib/storage: fix inmemory inverted index issues found in v1.29 
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 13:35:38 +02:00
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
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
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
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
hanzai
52778da1f3 warns during rows addition (#214) 2019-10-20 23:38:51 +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
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
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
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
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
39f3f3a517 lib: move common code for creating flock.lock file into fs.CreateFlockFile 2019-08-13 01:46:20 +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
c6bec48927 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 14:11:56 +03:00
Aliaksandr Valialkin
4ca66344ee lib/storage: do not pollute inverted index with data for samples outside the retention period 2019-07-11 17:11:33 +03:00
Aliaksandr Valialkin
ba8195c58e all: consistency renaming: bytesSize -> sizeBytes 2019-07-10 00:47:42 +03:00
Aliaksandr Valialkin
a0c22a6830 app/vmstorage: add vm_cache_entries{type="storage/hour_metric_ids"} metric for tracking active time series count 2019-06-19 18:37:38 +03:00
Aliaksandr Valialkin
f9e1d32168 lib/storage: persist metric ids for the current and the previous hour on graceful shutdown 
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 07:55:09 +03:00
Aliaksandr Valialkin
18d6f293f7 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 01:55:18 +03:00
Aliaksandr Valialkin
51e2e255a6 lib/fs: consistency renaming SyncPath -> MustSyncPath, since it doesnt return error 2019-06-11 23:13:45 +03:00
Aliaksandr Valialkin
3437c30180 all: try hard removing directory with contents 
Fixes https://github.com/VictoriaMetrics/VictoriaMetrics/issues/61
 2019-06-11 01:58:08 +03:00
Aliaksandr Valialkin
75a0acf72d app/vmselect: add /api/v1/labels/count handler for quick detection of labels with the maximum number of distinct values 2019-06-10 19:54:55 +03:00
Aliaksandr Valialkin
d882afa905 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 19:14:04 +03:00
Aliaksandr Valialkin
a2986cde70 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 22:00:13 +03:00
Aliaksandr Valialkin
e27fd5148a lib/storage: speed up checking metricID existence in the list for the current date 2019-06-02 18:34:20 +03:00
Aliaksandr Valialkin
a6d02ff275 lib/timerpool: use timer pool in concurrency limiters 
This should reduce the number of memory allocations in highly loaded system
 2019-05-28 17:30:10 +03:00
Aliaksandr Valialkin
bdf696ef18 all: fix misspellings 2019-05-25 21:51:24 +03:00
Aliaksandr Valialkin
24578b4bb1 all: open-sourcing cluster version 2019-05-23 00:25:38 +03:00
Aliaksandr Valialkin
1836c415e6 all: open-sourcing single-node version 2019-05-23 00:18:06 +03:00