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https://issues.apache.org/jira/browse/CASSANDRA-14580?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16551549#comment-16551549
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Jason Brown commented on CASSANDRA-14580:
-----------------------------------------
Trivial patch to make the field configurable via the yaml:
||blockWhenSyncLagsNanos||
|[branch|https://github.com/jasobrown/cassandra/tree/pcls-blockWhenSyncLagsNanos]|
|[utests &
dtests|https://circleci.com/gh/jasobrown/workflows/cassandra/tree/pcls-blockWhenSyncLagsNanos]|
||
> Make PeriodicCommitLogService.blockWhenSyncLagsNanos configurable
> -----------------------------------------------------------------
>
> Key: CASSANDRA-14580
> URL: https://issues.apache.org/jira/browse/CASSANDRA-14580
> Project: Cassandra
> Issue Type: Improvement
> Reporter: Jason Brown
> Assignee: Jason Brown
> Priority: Minor
> Fix For: 4.0
>
>
> When using the default values for periodic commitlog, the sync is every ten
> seconds and if there's a lad in flushing to disc, we can block for up to 15
> seconds (sync time * 1.5). However, if you lower the sync time to 1 second,
> for example, the block time is only 1.5 seconds (not acceptable in all
> situations). Admittedly this is only an expert-level setting, but useful in
> some cases.
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