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https://issues.apache.org/jira/browse/CASSANDRA-14108?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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C. Scott Andreas reassigned CASSANDRA-14108:
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Assignee: C. Scott Andreas (was: Jason Brown)
> Improve commit log chain marker updating
> ----------------------------------------
>
> Key: CASSANDRA-14108
> URL: https://issues.apache.org/jira/browse/CASSANDRA-14108
> Project: Cassandra
> Issue Type: Bug
> Reporter: Jason Brown
> Assignee: C. Scott Andreas
> Priority: Normal
> Fix For: 3.0.16, 3.11.2, 4.0
>
>
> CASSANDRA-13987 addressed the commit log behavior change that was introduced
> with CASSANDRA-3578. After that patch was committed, [~aweisberg] did his own
> review and found a bug as well as having some concerns about the
> configuration. He and I discussed offline, and agreed on some improvements.
> Instead of requiring users to configure a deep, dark implementation detail
> like the commit log chained markers (via {{commitlog_marker_period_in_ms}} in
> the yaml), we decided it is best to eliminate thew configuration and always
> update the chained markers (when in periodic mode).
> The bug [~aweisberg] found was when the chained marker update is not a value
> that evenly divides into the periodic sync mode value, we would not sync in
> an expected manner. For example if the marker interval is 9 seconds, and the
> sync interval is 10 seconds, we would update the markers at time9, but we
> would then sleep for another 9 seconds, and when we wake up at time18, it is
> then that we flush - 8 seconds later than we should have.
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