VictoriaMetrics/lib
Aliaksandr Valialkin 12698b9136
lib/mergeset: really limit the number of in-memory parts to 15
It has been appeared that the registration of new time series slows down linearly
with the number of indexdb parts, since VictoriaMetrics needs to check every indexdb part
when it searches for TSID by newly ingested metric name.

The number of in-memory parts grows when new time series are registered
at high rate. The number of in-memory parts grows faster on systems with big number
of CPU cores, because the mergeset maintains per-CPU buffers with newly added entries
for the indexdb, and every such entry is transformed eventually into a separate in-memory part.

The solution has been suggested in https://github.com/VictoriaMetrics/VictoriaMetrics/pull/5212
by @misutoth - to limit the number of in-memory parts with buffered channel.
This solution is implemented in this commit. Additionally, this commit merges per-CPU parts
into a single part before adding it to the list of in-memory parts. This reduces CPU load
when searching for TSID by newly ingested metric name.

The https://github.com/VictoriaMetrics/VictoriaMetrics/pull/5212 recommends setting the limit on the number
of in-memory parts to 100, but my internal testing shows that much lower limit 15 works with the same efficiency
on a system with 16 CPU cores while reducing memory usage for `indexdb/dataBlocks` cache by up to 50%.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5190
2024-01-24 03:41:19 +02:00
..
appmetrics all: add -metrics.exposeMetadata command-line flag, which can be used for adding TYPE and HELP metadata for metrics exposed at /metrics page 2023-12-19 03:26:02 +02:00
auth lib/auth: add NewTokenPossibleMultitenant() for parsing auth token, which can be multitenant 2023-08-30 14:13:51 +02:00
awsapi lib/awsapi: properly assume role with webIdentity token (#5495) 2023-12-20 19:07:04 +02:00
backup vendor: run make vendor-update 2023-12-11 10:48:47 +02:00
blockcache all: add up to 10% random jitter to the interval between periodic tasks performed by various components 2024-01-22 18:39:16 +02:00
bloomfilter all: call atomic.Load* in front of atomic.CompareAndSwap* at places where the atomic.CompareAndSwap* returns false most of the time 2024-01-22 01:13:41 +02:00
bufferedwriter app/vmselect: move common http functionality from app/vmselect/searchutils to lib/httputils 2023-07-06 17:22:23 -07:00
buildinfo all: open-sourcing single-node version 2019-05-23 00:18:06 +03:00
bytesutil lib/logger: add -loggerMaxArgLen command-line flag for fine-tuning the maximum length of logged args 2023-11-13 09:43:49 +01:00
cgroup lib/cgroup: add SetGOGC() function 2023-07-06 17:24:31 -07:00
consts app/vminsert: reduce the max packet size, which vminsert can send to vmstorage 2022-04-05 15:39:58 +03:00
decimal lib/decimal: use consistent randomizer in tests 2023-01-23 19:24:05 -08:00
encoding lib/encoding: remove uneeded re-slicing of byte slice before passing it to binary.BigEndian.Uint* 2024-01-23 22:50:11 +02:00
envflag lib/envflag: do not allow unsupported form for boolean command-line flags in the form -boolFlag value 2023-08-17 13:37:05 +02:00
envtemplate allowed using dashes and dots in environment variables names (#4009) 2023-03-24 17:57:19 -07:00
fastnum Makefile: add build and test rules with enabled race detector. These rules have -race suffix 2020-03-05 12:05:16 +02:00
fasttime lib: extract common code for returning fast unix timestamp into lib/fasttime 2020-05-14 23:06:50 +03:00
filestream lib/filestream: do not measure read / write duration from / to in-memory buffers 2024-01-23 14:53:35 +02:00
flagutil all: allow dynamically reading *AuthKey flag values from files and urls 2024-01-22 01:23:23 +02:00
formatutil app/vmbackupmanager: add metrics for better observability (#488) 2022-12-20 14:18:43 -08:00
fs all: allow dynamically reading *AuthKey flag values from files and urls 2024-01-22 01:23:23 +02:00
handshake lib/handshake: substitute time.Now() with fastttime.UnixTimestamp(), since profiling shows time.Now() is slow 2024-01-23 18:39:28 +02:00
htmlcomponents lib/htmlcomponents: use relative links for the top page and for favicon.ico 2023-11-13 20:28:17 +01:00
httpserver all: allow dynamically reading *AuthKey flag values from files and urls 2024-01-22 01:23:23 +02:00
httputils lib/httputils: handle step=undefined query arg as an empty value 2024-01-17 00:13:04 +02:00
influxutils lib/flagutil: rename Array to ArrayString 2022-10-01 18:28:19 +03:00
ingestserver lib/ingestserver: properly log the number of closed connections 2023-11-14 21:53:10 +01:00
leveledbytebufferpool all: make fmt via the upcoming Go1.19 2022-07-11 19:23:25 +03:00
logger lib/logger: increase default -loggerMaxArgLen command-line flag value from 500 to 1000 2023-11-14 19:55:55 +01:00
logjson app/vlinsert/jsonline: code prettifying 2023-07-06 21:35:55 -07:00
logstorage all: add up to 10% random jitter to the interval between periodic tasks performed by various components 2024-01-22 18:39:16 +02:00
lrucache all: add up to 10% random jitter to the interval between periodic tasks performed by various components 2024-01-22 18:39:16 +02:00
memory all: cleanup: remove // +build ... lines, since they are no longer needed after Go1.17, and the minimum supported Go version for VictoriaMetrics source code is Go1.20 2023-11-13 19:15:42 +01:00
mergeset lib/mergeset: really limit the number of in-memory parts to 15 2024-01-24 03:41:19 +02:00
metricsql all: make fmt via the upcoming Go1.19 2022-07-11 19:23:25 +03:00
netutil app/vmselect: add support for vmstorage groups with independent -replicationFactor per group 2023-12-13 00:14:34 +02:00
persistentqueue app/vmagent: follow-up for 090cb2c9de 2023-11-25 12:13:39 +02:00
procutil all: cleanup: remove // +build ... lines, since they are no longer needed after Go1.17, and the minimum supported Go version for VictoriaMetrics source code is Go1.20 2023-11-13 19:15:42 +01:00
promauth all: allow dynamically reading *AuthKey flag values from files and urls 2024-01-22 01:23:23 +02:00
prompb lib/prompbmarshal: switch to github.com/VictoriaMetrics/easyproto 2024-01-16 20:48:30 +02:00
prompbmarshal lib/prompbmarshal: move WriteRequest proto definition to the correct place 2024-01-16 21:57:03 +02:00
promrelabel all: allow dynamically reading *AuthKey flag values from files and urls 2024-01-22 01:23:23 +02:00
promscrape lib/promscrape: respect 0 value for series_limit param (#5663) 2024-01-23 13:09:36 +02:00
promutils all: consistently clear prompbmarshal.Label by assigning an empty struct instead of zeroing Name and Value individually 2024-01-22 01:11:59 +02:00
protoparser all: consistently clear prompbmarshal.Label by assigning an empty struct instead of zeroing Name and Value individually 2024-01-22 01:11:59 +02:00
proxy lib/promauth: follow-up for e16d3f5639 2023-10-26 09:55:47 +02:00
pushmetrics lib/pushmetrics: wait until the background goroutines, which push metrics, are stopped at pushmetrics.Stop() 2024-01-16 21:18:22 +02:00
querytracer lib/querytracer: add missing blank comment line after 3121d76bee 2023-11-15 16:11:50 +01:00
regexutil lib/regexutil: properly handle alternate regexps surrounded by .+ or .* 2023-11-13 18:25:57 +01:00
snapshot Makefile: update golangci-lint version from v1.54.2 to v1.55.1 2023-11-02 21:42:35 +01:00
storage lib/{storage,mergeset}: reduce the maxium compression level for the stored data 2024-01-23 17:47:40 +02:00
streamaggr all: allow dynamically reading *AuthKey flag values from files and urls 2024-01-22 01:23:23 +02:00
stringsutil lib/stringsutil: add tests for LimitStringLen() function 2023-11-13 10:33:07 +01:00
syncwg all: open-sourcing single-node version 2019-05-23 00:18:06 +03:00
tenantmetrics lib/encoding/zstd: switch back from atomic.Pointer to atomic.Value for map[...]... 2023-07-20 21:54:51 -07:00
timerpool lib/timerpool: use timer pool in concurrency limiters 2019-05-28 17:30:10 +03:00
timeutil all: add up to 10% random jitter to the interval between periodic tasks performed by various components 2024-01-22 18:39:16 +02:00
uint64set lib/uint64: remove accidentally added test 2024-01-09 13:32:22 +01:00
vmselectapi vmcluster: re-routing enhancement (#5293) 2023-11-14 01:00:42 +01:00
workingsetcache all: add up to 10% random jitter to the interval between periodic tasks performed by various components 2024-01-22 18:39:16 +02:00
writeconcurrencylimiter lib/writeconcurrencylimiter: initialize concurrencyLimitCh before exporting vm_concurrent_insert_capacity and vm_concurrent_insert_current metrics 2023-02-07 11:08:39 -08:00