[jira] [Resolved] (LUCENE-6063) Allow overriding ConcurrentMergeScheduler's denial-of-service protection

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

     [ https://issues.apache.org/jira/browse/LUCENE-6063?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Michael McCandless resolved LUCENE-6063.
----------------------------------------
    Resolution: Fixed

> Allow overriding ConcurrentMergeScheduler's denial-of-service protection
> ------------------------------------------------------------------------
>
>                 Key: LUCENE-6063
>                 URL: https://issues.apache.org/jira/browse/LUCENE-6063
>             Project: Lucene - Core
>          Issue Type: Improvement
>          Components: core/index
>            Reporter: Michael McCandless
>            Assignee: Michael McCandless
>             Fix For: 5.0, Trunk
>
>         Attachments: LUCENE-6063.patch
>
>
> In LUCENE-5310 we explored improving CMS/SMS sharing/concurrency, but
> the issue never "converged", so I want to break out one small part of
> it here: the ability to override CMS's default "aggressive"
> denial-of-service protection where it forcefully stalls the incoming
> threads that are responsible for creating too many segments.
> More advanced applications can more gracefully handle the "too many
> merges" by e.g. slowing down the incoming indexing rate at a higher
> level.



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