[jira] [Commented] (CASSANDRA-4050) Unable to remove snapshot files on Windows while original sstables are live

["Joshua McKenzie (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CASSANDRA-4050?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13935316#comment-13935316 ] 

Joshua McKenzie commented on CASSANDRA-4050:
--------------------------------------------

I did some testing to confirm - nio.2 resolves both deleting hard-links and deleting of files with other handles currently open on Windows.  It should be straightforward to convert to a SeekableByteChannel and MappedByteBuffer in RAR and wrap the FileDataInput interface over to the ByteBuffer's.

> Unable to remove snapshot files on Windows while original sstables are live
> ---------------------------------------------------------------------------
>
>                 Key: CASSANDRA-4050
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-4050
>             Project: Cassandra
>          Issue Type: Bug
>         Environment: Windows 7
>            Reporter: Jim Newsham
>            Assignee: Joshua McKenzie
>            Priority: Minor
>
> I'm using Cassandra 1.0.8, on Windows 7.  When I take a snapshot of the database, I find that I am unable to delete the snapshot directory (i.e., dir named "{datadir}\{keyspacename}\snapshots\{snapshottag}") while Cassandra is running:  "The action can't be completed because the folder or a file in it is open in another program.  Close the folder or file and try again" [in Windows Explorer].  If I terminate Cassandra, then I can delete the directory with no problem.
> I expect to be able to move or delete the snapshotted files while Cassandra is running, as this should not affect the runtime operation of Cassandra.



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