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Posted to issues@lucene.apache.org by "Gézapeti (Jira)" <ji...@apache.org> on 2021/02/02 13:09:00 UTC
[jira] [Commented] (SOLR-15119) Make LINK splitMethod the default
for SplitShardCmd
[ https://issues.apache.org/jira/browse/SOLR-15119?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17277109#comment-17277109 ]
Gézapeti commented on SOLR-15119:
---------------------------------
I've tried it out and the Link method works with HDFS as well, it's smart enough to fall back to copy the whole index over on HDFS.
> Make LINK splitMethod the default for SplitShardCmd
> ---------------------------------------------------
>
> Key: SOLR-15119
> URL: https://issues.apache.org/jira/browse/SOLR-15119
> Project: Solr
> Issue Type: Improvement
> Security Level: Public(Default Security Level. Issues are Public)
> Affects Versions: master (9.0)
> Reporter: Megan Carey
> Priority: Major
> Labels: easy-fix
> Time Spent: 1h 10m
> Remaining Estimate: 0h
>
> REWRITE splitMethod is still the default in SplitShardCmd [1], despite LINK being much faster. IndexSizeTrigger in branch_8x already uses LINK by default [2], and we have found LINK to be reliable and performant at scale. This work will just update the default in SplitShardCmd to make LINK the default overall.
>
> [1][https://github.com/apache/lucene-solr/blob/master/solr/core/src/java/org/apache/solr/cloud/api/collections/SplitShardCmd.java#L88]
> [2][https://github.com/apache/lucene-solr/blob/branch_8x/solr/core/src/java/org/apache/solr/cloud/autoscaling/IndexSizeTrigger.java#L186]
>
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