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https://issues.apache.org/jira/browse/SOLR-9177?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16051976#comment-16051976
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Shawn Heisey commented on SOLR-9177:
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bq. Are there benefits from running in foreground with systemd
I'd like to know that too. My guess: If you start a foreground process, you
don't have to track it. Taking action when the process ends is simply a matter
of script or code after the call to start the process.
> Support oom hook when running Solr in foreground mode
> -----------------------------------------------------
>
> Key: SOLR-9177
> URL: https://issues.apache.org/jira/browse/SOLR-9177
> Project: Solr
> Issue Type: New Feature
> Reporter: Anshum Gupta
>
> After reading through the comments on SOLR-8145 and from my own experience,
> seems like a reasonable number of people run Solr in foreground mode in
> production.
> To give some more context, I've seen Solr hit OOM, which leads to IW being
> closed by Lucene. The Solr process hangs in there and without the oom killer,
> while all queries continue to work, all update requests start failing.
> I think it makes sense to add support to the bin/solr script to add the oom
> hook when running in fg mode.
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