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app/vmagent/remotewrite: reduce memory usage when -remoteWrite.queues is set to a big value

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See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1167
This commit is contained in:
Aliaksandr Valialkin 2021-03-31 16:16:26 +03:00
parent 6712173ce3
commit 392ba94d1d
2 changed files with 9 additions and 1 deletions
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8
app/vmagent/remotewrite/remotewrite.go
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@ -210,7 +210,13 @@ func newRemoteWriteCtx(argIdx int, remoteWriteURL string, maxInmemoryBlocks int,
c := newClient(argIdx, remoteWriteURL, sanitizedURL, fq, *queues)
sf := significantFigures.GetOptionalArgOrDefault(argIdx, 0)
rd := roundDigits.GetOptionalArgOrDefault(argIdx, 100)
pss := make([]*pendingSeries, *queues)
pssLen := *queues
if n := cgroup.AvailableCPUs(); pssLen > n {
// There is no sense in running more than availableCPUs concurrent pendingSeries,
// since every pendingSeries can saturate up to a single CPU.
pssLen = n
}
pss := make([]*pendingSeries, pssLen)
for i := range pss {
pss[i] = newPendingSeries(fq.MustWriteBlock, sf, rd)
}

2
docs/CHANGELOG.md
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@ -2,6 +2,8 @@
# tip
* FEATURE: vmagent: reduce memory usage when `-remoteWrite.queues` is set to a big value. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1167).
# [v1.57.1](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.57.1)