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https://issues.apache.org/jira/browse/SOLR-9192?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15318699#comment-15318699
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Erick Erickson commented on SOLR-9192:
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Please add more details here. IIRC, setting batch size for some jdbc drivers is
the right thing to do, but for others it isn't. I suspect you're using MySQL?
And please in future raise this kind of question on the user's list _before_
raising a JIRA. We try to raise JIRAs to track code changes once it's agreed
that something needs to change in Solr.
> why not set batchSize = -1 in JdbcDataSource for DIH
> ----------------------------------------------------
>
> Key: SOLR-9192
> URL: https://issues.apache.org/jira/browse/SOLR-9192
> Project: Solr
> Issue Type: Wish
> Reporter: luyee
>
> the default value of batchSize is 500(FETCH_SIZE) ; actually,set batchSize =
> -1 could avoid OOM ?
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