[jira] [Resolved] (LUCENE-3203) Rate-limit IO used by merging

["Michael McCandless (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/LUCENE-3203?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Michael McCandless resolved LUCENE-3203.
----------------------------------------

       Resolution: Fixed
    Fix Version/s:     (was: 3.3)
                       (was: 4.0)
                   IOContext branch

> Rate-limit IO used by merging
> -----------------------------
>
>                 Key: LUCENE-3203
>                 URL: https://issues.apache.org/jira/browse/LUCENE-3203
>             Project: Lucene - Java
>          Issue Type: Improvement
>          Components: core/store
>            Reporter: Michael McCandless
>            Assignee: Michael McCandless
>            Priority: Minor
>             Fix For: IOContext branch
>
>         Attachments: LUCENE-3203.patch, LUCENE-3203.patch
>
>
> Large merges can mess up searches and increase NRT reopen time (see
> http://blog.mikemccandless.com/2011/06/lucenes-near-real-time-search-is-fast.html).
> A simple rate limiter improves the spikey NRT reopen times during big
> merges, so I think we should somehow make this possible.  Likely this
> would reduce impact on searches as well.
> Typically apps that do indexing and searching on same box are in no
> rush to see the merges complete so this is a good tradeoff.

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