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volume server:set the default value of "hasSlowRead" to true (#3710)

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* simplify a bit

* feat: volume: add "readBufSize" option to customize read optimization

* refactor : redbufSIze -> readBufferSize

* simplify a bit

* simplify a bit

* volume server:set the default value of "hasSlowRead" to true
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famosss 2022-10-13 12:13:26 +08:00 committed by GitHub
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2
weed/command/volume.go
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@ -98,7 +98,7 @@ func init() {
v.metricsHttpPort = cmdVolume.Flag.Int("metricsPort", 0, "Prometheus metrics listen port") v.metricsHttpPort = cmdVolume.Flag.Int("metricsPort", 0, "Prometheus metrics listen port")
v.idxFolder = cmdVolume.Flag.String("dir.idx", "", "directory to store .idx files") v.idxFolder = cmdVolume.Flag.String("dir.idx", "", "directory to store .idx files")
v.inflightUploadDataTimeout = cmdVolume.Flag.Duration("inflightUploadDataTimeout", 60*time.Second, "inflight upload data wait timeout of volume servers") v.inflightUploadDataTimeout = cmdVolume.Flag.Duration("inflightUploadDataTimeout", 60*time.Second, "inflight upload data wait timeout of volume servers")
v.hasSlowRead = cmdVolume.Flag.Bool("hasSlowRead", false, "<experimental> if true, this prevents slow reads from blocking other requests, but large file read P99 latency will increase.") v.hasSlowRead = cmdVolume.Flag.Bool("hasSlowRead", true, "<experimental> if true, this prevents slow reads from blocking other requests, but large file read P99 latency will increase.")
v.readBufferSizeMB = cmdVolume.Flag.Int("readBufferSizeMB", 4, "<experimental> larger values can optimize query performance but will increase some memory usage,Use with hasSlowRead normally.") v.readBufferSizeMB = cmdVolume.Flag.Int("readBufferSizeMB", 4, "<experimental> larger values can optimize query performance but will increase some memory usage,Use with hasSlowRead normally.")
} }