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https://issues.apache.org/jira/browse/LUCENE-2795?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13068636#comment-13068636
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Michael McCandless commented on LUCENE-2795:
--------------------------------------------
I think NativeUnixDir should have a ctor that takes no buffer size, and uses
the default? And merging should always use the forcedBufferSize (let's rename
it to mergeBufferSize?), ie, never delegate to BII.bufferSize(context).
Then, NativeUnixIndexInput/Output shouldn't have 2 ctors, only 1 (that takes
bufferSize) and NativeUnixDir just passes the buffer size?
Somehow, but this should be a different issue, this Dir impl should only
provide the II/IO impls for use during merging; if it's not a merge it should
delegate to another Dir impl. Maybe we pass a delegate to the ctor or
something...
> Genericize DirectIOLinuxDir -> UnixDir
> --------------------------------------
>
> Key: LUCENE-2795
> URL: https://issues.apache.org/jira/browse/LUCENE-2795
> Project: Lucene - Java
> Issue Type: Improvement
> Components: core/store
> Reporter: Michael McCandless
> Assignee: Varun Thacker
> Labels: gsoc2011, lucene-gsoc-11, mentor
> Attachments: LUCENE-2795.patch, LUCENE-2795.patch, LUCENE-2795.patch,
> LUCENE-2795.patch, LUCENE-2795.patch, LUCENE-2795.patch
>
>
> Today DirectIOLinuxDir is tricky/dangerous to use, because you only want to
> use it for indexWriter and not IndexReader (searching). It's a trap.
> But, once we do LUCENE-2793, we can make it fully general purpose because
> then a single native Dir impl can be used.
> I'd also like to make it generic to other Unices, if we can, so that it
> becomes UnixDirectory.
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