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https://issues.apache.org/jira/browse/LUCENE-753?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12627313#action_12627313
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robert engels commented on LUCENE-753:
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SUN is accepting outside bug fixes to the Open JDK, and merging them to the
commercial JDK (in most cases).
If the underlying bug is fixed in the Windows JDK - not too hard - then you fix
this properly in Lucene.
If you don't fix it in the JDK you are always going to have the 'running out of
file handles' synchronization, vs, the "locked position" synchronization -
there is no way to fix this in user code...
> Use NIO positional read to avoid synchronization in FSIndexInput
> ----------------------------------------------------------------
>
> Key: LUCENE-753
> URL: https://issues.apache.org/jira/browse/LUCENE-753
> Project: Lucene - Java
> Issue Type: New Feature
> Components: Store
> Reporter: Yonik Seeley
> Assignee: Michael McCandless
> Attachments: FileReadTest.java, FileReadTest.java, FileReadTest.java,
> FileReadTest.java, FileReadTest.java, FileReadTest.java, FileReadTest.java,
> FSDirectoryPool.patch, FSIndexInput.patch, FSIndexInput.patch,
> LUCENE-753.patch, LUCENE-753.patch, LUCENE-753.patch, LUCENE-753.patch,
> LUCENE-753.patch, lucene-753.patch, lucene-753.patch
>
>
> As suggested by Doug, we could use NIO pread to avoid synchronization on the
> underlying file.
> This could mitigate any MT performance drop caused by reducing the number of
> files in the index format.
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