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https://issues.apache.org/jira/browse/CASSANDRA-8584?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ariel Weisberg updated CASSANDRA-8584:
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Attachment: NoSpamLogger.java
Kitchen sink version of NoSpamLogger.
It's now lock free and nonblocking to check whether something should be logged.
Constructor is private ensuring that only one instance of each wrapper exists.
It's possible to supply your own timestamps when logging (frequently you
already know the time).
You also don't need to construct and keep around a wrapper to invoke a static
method that will retrieve (or construct) the wrapper on demand.
> 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: Joshua McKenzie
> Priority: Trivial
> Fix For: 2.1.4
>
> 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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