[
https://issues.apache.org/jira/browse/LUCENE-2793?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Varun Thacker reassigned LUCENE-2793:
-------------------------------------
Assignee: Varun Thacker (was: Simon Willnauer)
> Directory createOutput and openInput should take an IOContext
> -------------------------------------------------------------
>
> Key: LUCENE-2793
> URL: https://issues.apache.org/jira/browse/LUCENE-2793
> Project: Lucene - Java
> Issue Type: Improvement
> Components: core/store
> Reporter: Michael McCandless
> Assignee: Varun Thacker
> Labels: gsoc2011, lucene-gsoc-11, mentor
> Attachments: LUCENE-2793.patch, LUCENE-2793.patch, LUCENE-2793.patch,
> LUCENE-2793.patch, LUCENE-2793.patch
>
>
> Today for merging we pass down a larger readBufferSize than for searching
> because we get better performance.
> I think we should generalize this to a class (IOContext), which would hold
> the buffer size, but then could hold other flags like DIRECT (bypass OS's
> buffer cache), SEQUENTIAL, etc.
> Then, we can make the DirectIOLinuxDirectory fully usable because we would
> only use DIRECT/SEQUENTIAL during merging.
> This will require fixing how IW pools readers, so that a reader opened for
> merging is not then used for searching, and vice/versa. Really, it's only
> all the open file handles that need to be different -- we could in theory
> share del docs, norms, etc, if that were somehow possible.
--
This message is automatically generated by JIRA.
For more information on JIRA, see: http://www.atlassian.com/software/jira
---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscr...@lucene.apache.org
For additional commands, e-mail: dev-h...@lucene.apache.org
