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Increase slog buffer size#5882

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mergify[bot] merged 1 commit intosigp:unstablefrom
michaelsproul:slog-more
Jun 4, 2024
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Increase slog buffer size#5882
mergify[bot] merged 1 commit intosigp:unstablefrom
michaelsproul:slog-more

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@michaelsproul michaelsproul commented Jun 4, 2024

Proposed Changes

Increase the slog buffer size to 16K to reduce the occurrence of:

ERRO slog-async: logger dropped messages due to channel overflow, count: 4

These errors sometimes occur on our Holesky BNs which are receiving attestations from 100K validators each. They also occur occasionally on other BNs supporting large numbers of validators.

Examples of messages that overflow the channel include:

Arguably some of these should be debounced, but for others it's not obvious that they should be. Increasing the buffer size temporarily at least gives us a full view of the logs until some of these spammier logs are toned down. It's frustrating to miss important ERRO/CRIT logs due to overflows.

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@michaelsproul michaelsproul added ready-for-review The code is ready for review UX-and-logs v5.2.0 Q2 2024 labels Jun 4, 2024
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LGTM!

@jimmygchen jimmygchen added ready-for-merge This PR is ready to merge. and removed ready-for-review The code is ready for review labels Jun 4, 2024
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mergify bot commented Jun 4, 2024

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✅ The pull request has been merged automatically

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The pull request has been merged automatically at 1b7c4a4

mergify bot added a commit that referenced this pull request Jun 4, 2024
michaelsproul added a commit that referenced this pull request Jun 4, 2024
Squashed commit of the following:

commit d6dfcc4
Author: Michael Sproul <michael@sigmaprime.io>
Date:   Tue Jun 4 10:36:27 2024 +1000

    Increase slog buffer size
@michaelsproul michaelsproul mentioned this pull request Jun 4, 2024
mergify bot added a commit that referenced this pull request Jun 4, 2024
@mergify mergify bot merged commit 1b7c4a4 into sigp:unstable Jun 4, 2024
@michaelsproul michaelsproul deleted the slog-more branch June 4, 2024 04:41
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dapplion commented Jun 5, 2024

Why 16k and not more? What's the avg size of a log record?

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ready-for-merge This PR is ready to merge. UX-and-logs v5.2.0 Q2 2024

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3 participants