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https://issues.apache.org/jira/browse/CASSANDRA-9403?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14559453#comment-14559453
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Tyler Hobbs commented on CASSANDRA-9403:
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[~aweisberg] it looks like the 2.2 branch is failing to compile with java 7 due
to Supplier. I'm also not sure what's up with the dtest failures.
> Experiment with skipping file syncs during unit tests to reduce test time
> -------------------------------------------------------------------------
>
> Key: CASSANDRA-9403
> URL: https://issues.apache.org/jira/browse/CASSANDRA-9403
> Project: Cassandra
> Issue Type: Test
> Reporter: Ariel Weisberg
> Assignee: Ariel Weisberg
> Fix For: 3.x, 2.2.x
>
>
> Some environments have ridiculous outliers for disk syncing. 20 seconds
> ridiculous.
> Unit tests aren't testing crash safety so it is a pointless exercise.
> Instead we could intercept calls to sync files and check whether it looks
> like the sync would succeed. Check that the things are not null, mapped,
> closed etc. Outside of units tests it can go straight to the regular sync
> call.
> I would also like to have the disks for unit and dtests mounted with
> barrier=0,noatime,nodiratime to further reduce susceptibility to outliers. We
> aren't going to recover these nodes if they crash/restart.
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