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https://issues.apache.org/jira/browse/SOLR-1150?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12711582#action_12711582
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Mark Miller commented on SOLR-1150:
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Patch looks right - my only concern would be a performance impact, but that
does look unlikely. There is likely to be some benefit in loading them all at
once, but I can't imagine one at a time is much of a loss.
> OutofMemoryError on enabling highlighting
> -----------------------------------------
>
> Key: SOLR-1150
> URL: https://issues.apache.org/jira/browse/SOLR-1150
> Project: Solr
> Issue Type: Improvement
> Components: highlighter
> Affects Versions: 1.4
> Reporter: Siddharth Gargate
> Fix For: 1.4
>
> Attachments: SOLR-1150.patch
>
>
> Please refer to following mail thread
> http://markmail.org/message/5nhkm5h3ongqlput
> I am testing with 2MB document size and just 500 documents. Indexing is
> working fine even with 128MB heap size. But on searching Solr throws OOM
> error. This issue is observed only when we enable highlighting. While
> indexing I am storing 1 MB text. While searching Solr reads all the 500
> documents in the memory. It also reads the complete 1 MB stored field in the
> memory for all 500 documents. Due to this 500 docs * 1 MB * 2 (2 bytes per
> char) = 1000 MB memory is required for searching.
> This memory usage can be reduced by reading one document at a time.
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