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https://issues.apache.org/jira/browse/LUCENE-2795?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Varun Thacker updated LUCENE-2795:
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Attachment: LUCENE-2795.patch
Updated jdocs.
createOutput switches between direct and normal.
Added constructors NativeUnixIndexOutput/NativeUnixIndexInput which does not
take buffersize and uses 256kb by default.
Changed logic of using forcedbuffersize as suggested - It is only used in MERGE
context rest of the times BII.buffersize
I am still trying to figure out how to find out different kernel versions in
this case. This is what I found out till now. Use the system("uname -r") call
in the c program directly. Use a makefile. Still haven't figured out how to do
so using cpptasks though.
> 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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