nsqd: add support for customise output-buffer-timeout #1125
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/cc @mreiferson @ploxiln |
mreiferson
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Jan 15, 2019
apps/nsqd/nsqd.go
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| @@ -117,6 +117,7 @@ func nsqdFlagSet(opts *nsqd.Options) *flag.FlagSet { | |||
| flagSet.Int64("max-rdy-count", opts.MaxRdyCount, "maximum RDY count for a client") | |||
| flagSet.Int64("max-output-buffer-size", opts.MaxOutputBufferSize, "maximum client configurable size (in bytes) for a client output buffer") | |||
| flagSet.Duration("max-output-buffer-timeout", opts.MaxOutputBufferTimeout, "maximum client configurable duration of time between flushing to a client") | |||
| flagSet.Duration("output-buffer-timeout", opts.OutputBufferTimeout, "server configurable duration of time between flushing to a client") | |||
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let's rename the help text here to:
default duration of time between flushing data to clients
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@mreiferson Done. PTAL.
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I'm OK with this, thanks for the PR @andyxning! |
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This PR adds support for customising server output-buffer-timeout default value.
We have encountered with a single nsqd instance with more than 40k connections. With a default 250ms output buffer timeout we have a high cpu usage. After customising it with 500ms, the CPU
usage drops about 10%.