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From "Joshua McKenzie (JIRA)" <>
Subject [jira] [Resolved] (CASSANDRA-9627) fsync should not be "best effort"
Date Thu, 12 Nov 2015 16:44:11 GMT


Joshua McKenzie resolved CASSANDRA-9627.
    Resolution: Not A Problem

Closing as not a problem since chkdsk will fix orphaned pointers.

> fsync should not be "best effort"
> ---------------------------------
>                 Key: CASSANDRA-9627
>                 URL:
>             Project: Cassandra
>          Issue Type: Bug
>            Reporter: Benedict
>            Priority: Minor
>             Fix For: 2.2.x
> Currently we make an effort to synchronize both the file contents and the directory contents.
Both are essential to ensure no data loss. Currently we just try to do this, and ignore the
problem if we can't. Presumably this behaviour was to "sort of" support Windows (i.e. not
crash). Now we officially support Windows, we need to behave better, and really IMO we should
_never_ for any platform ignore a failure here. It should be part of our pre-flight checks:
if we cannot do it, we cannot run safely.
> It looks like this may be supported trivially through FileChannel, by opening one on
the directory itself (and calling force()), although it's not clear if this will still be
supported in Java 9 [see discussion here|].
> [~JoshuaMcKenzie]: assigning to you for now, just so it's tracked by the Windows overlord.

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