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https://issues.apache.org/jira/browse/CASSANDRA-8584?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14523037#comment-14523037
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Benedict commented on CASSANDRA-8584:
-------------------------------------
[~aweisberg]: your patch changes the behaviour of the logging of the commit log
sync, so that we drop information. Our NoSpamLogger should perhaps have a
ticket system, so that if we get the right to log we know it (and can reset)?
Previously every 5m we printed an aggregation of the problematic state and
reset our counters; now we print and reset without knowing if the data got
printed. So the problem of CL being behind on sync could be much worse than an
operator realises.
> Add strerror output on failed trySkipCache calls
> ------------------------------------------------
>
> Key: CASSANDRA-8584
> URL: https://issues.apache.org/jira/browse/CASSANDRA-8584
> Project: Cassandra
> Issue Type: Improvement
> Reporter: Joshua McKenzie
> Assignee: Ariel Weisberg
> Priority: Trivial
> Fix For: 2.1.x
>
> Attachments: 8584_v1.txt, NoSpamLogger.java, nospamlogger.txt
>
>
> Since trySkipCache returns an errno rather than -1 and setting errno like our
> other CLibrary calls, it's thread-safe and we could print out more helpful
> information if we failed to prompt the kernel to skip the page cache. That
> system call should always succeed unless we have an invalid fd as it's free
> to ignore us.
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