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From "Hrishikesh Gadre (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SOLR-9642) Refactor the core level snapshot cleanup mechanism to rely on Lucene
Date Mon, 17 Oct 2016 18:05:59 GMT

    [ https://issues.apache.org/jira/browse/SOLR-9642?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15582949#comment-15582949
] 

Hrishikesh Gadre commented on SOLR-9642:
----------------------------------------

[~yonik@apache.org] Thanks for taking a look! Shouldn't this be committed to trunk as well?

> Refactor the core level snapshot cleanup mechanism to rely on Lucene
> --------------------------------------------------------------------
>
>                 Key: SOLR-9642
>                 URL: https://issues.apache.org/jira/browse/SOLR-9642
>             Project: Solr
>          Issue Type: Improvement
>      Security Level: Public(Default Security Level. Issues are Public) 
>    Affects Versions: 6.2
>            Reporter: Hrishikesh Gadre
>            Assignee: Yonik Seeley
>             Fix For: 6.3
>
>
> SOLR-9269 introduced a mechanism to create/delete snapshots for a Solr core (using Lucene
IndexDeletionPolicy). The current snapshot cleanup mechanism is based on reference counting
the index files shared between multiple segments. Since this mechanism completely skips the
Lucene APIs, it is not portable (e.g. it doesn't work on 4.10.3 version).
> I propose an alternative implementation which relies exclusively on Lucene IndexWriter
(+ IndexDeletionPolicy) for cleanup.



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