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https://issues.apache.org/jira/browse/SOLR-5214?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13758153#comment-13758153
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Shalin Shekhar Mangar commented on SOLR-5214:
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Thanks Christine. Do you have the OutOfMemoryError stack trace?
> collections?action=SPLITSHARD running out of heap space due to merge
> --------------------------------------------------------------------
>
> Key: SOLR-5214
> URL: https://issues.apache.org/jira/browse/SOLR-5214
> Project: Solr
> Issue Type: Improvement
> Components: update
> Affects Versions: 4.3
> Reporter: Christine Poerschke
> Assignee: Shalin Shekhar Mangar
> Attachments: SOLR-5214.patch
>
>
> The problem we saw was that splitting a shard with many segments and documents
> failed by running out of heap space.
> Increasing heap space so that all existing segments could be merged into one
> overall segment does not seem practical. Running the split without segment
> merging worked.
> Could split always run without merging, or merge=true/false be an optional
> parameter for the SPLITSHARD action?
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