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Increase fluent-bit flush interval to lessen DNS load #319

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merged 2 commits into from
Nov 26, 2019

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rvmiller89
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Description

From the CoreDNS investigation, we are using the default fluent-bit flush interval of 1s, which leads to DNS lookup per flush. We can increase the flush interval to lessen the DNS lookups, and also the number of network calls from fluent-bit to fluentd.

Testing performed
  • ci/build.sh
  • Redeploy fluentd and fluentd-events pods
  • Confirm events, logs, and metrics are coming in

@rvmiller89 rvmiller89 merged commit 2fa7e5c into master Nov 26, 2019
@rvmiller89 rvmiller89 deleted the rmiller-lessen-fluent-bit-flush branch November 26, 2019 19:55
@lei-sumo
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I think we decreased it to 1s to avoid aother issue? @samjsong Did you remember?

@samjsong
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I believe that was the Refresh_Interval rather than flush interval. I think this is fine to change

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4 participants