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From "Robert Muir (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SOLR-2567) Solr should default to TieredMergePolicy
Date Wed, 01 Jun 2011 22:09:47 GMT

    [ https://issues.apache.org/jira/browse/SOLR-2567?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13042475#comment-13042475
] 

Robert Muir commented on SOLR-2567:
-----------------------------------

Anyway, I'm interested in what others think the right thing to do here is... we can bring
it to the dev@ list if it will grab more attention.

the choices to me seem to be:
# release 3.2 as is, enable TieredMergePolicy in 3.3, using luceneMatchVersion >= 3.3
# release 3.2 as is, enable TieredMergePolicy in 3.3, just changing the default completely.
# respin and use this patch, with TieredMergePolicy defaulted on for luceneMatchVersion >=
3.2 (consistent with lucene), but you don't have total configuration over all its settings
(just mergefactor and compoundfile).
# respin like the above, but also quickly try to add support for MergePolicyFactory or similar,
so that all tieredMP settings are exposed

and maybe there are other ideas I haven't mentioned.

> Solr should default to TieredMergePolicy
> ----------------------------------------
>
>                 Key: SOLR-2567
>                 URL: https://issues.apache.org/jira/browse/SOLR-2567
>             Project: Solr
>          Issue Type: Bug
>          Components: update
>            Reporter: Robert Muir
>             Fix For: 3.3, 4.0
>
>         Attachments: SOLR-2567.patch, SOLR-2567.patch
>
>
> even if we set a luceneMatchVersion to >= 3.2 (SOLR-2557),
> Solr still defaults to LogByte

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