[jira] Resolved: (CASSANDRA-159) avoid repetetive sorting in CFS.getColumnFamilyFromDisk

["Jonathan Ellis (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CASSANDRA-159?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jonathan Ellis resolved CASSANDRA-159.
--------------------------------------

    Resolution: Fixed
      Assignee: Jonathan Ellis

fixed by patch for CASSANDRA-161

> avoid repetetive sorting in CFS.getColumnFamilyFromDisk
> -------------------------------------------------------
>
>                 Key: CASSANDRA-159
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-159
>             Project: Cassandra
>          Issue Type: Improvement
>            Reporter: Jonathan Ellis
>            Assignee: Jonathan Ellis
>             Fix For: 0.4
>
>
> getColumnFamilyFromDisk starts out with
>         List<String> files = new ArrayList<String>();        
>     	lock_.readLock().lock();
>         try
>         {
>             files.addAll(ssTables_);
>             Collections.sort(files, new FileNameComparator(FileNameComparator.Descending));
>         }
>         finally
>         {
>             lock_.readLock().unlock();
>         }
> this is silly, we should really keep the list sorted instead of re-sorting for *each* *read*.

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