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https://issues.apache.org/jira/browse/SOLR-16463?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17620626#comment-17620626
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Uwe Schindler commented on SOLR-16463:
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Thanks, Jan. This is exactly my own
I just want to add: In JDK 17 (and also JDK 11) are so many bugs we have seen,
some are already fixed in 17, but still existing in 11 (just look at the daily
failures by Lucene's tests running all variants of 11 to 20-ea on 9.x branch).
If we really would like to be safe: Let's go back to 8! - oh wait, JDK 8 is
also buggy! :P
It would just be good if we could get some feedback from users of mailing list.
> Serious crash on JDK17+ due to JIT on caffeinecache
> ---------------------------------------------------
>
> Key: SOLR-16463
> URL: https://issues.apache.org/jira/browse/SOLR-16463
> Project: Solr
> Issue Type: Bug
> Security Level: Public(Default Security Level. Issues are Public)
> Components: Docker
> Affects Versions: 9.0
> Reporter: Jan Høydahl
> Assignee: Jan Høydahl
> Priority: Blocker
> Fix For: 9.1
>
> Time Spent: 2h 50m
> Remaining Estimate: 0h
>
> Solr 9+ under JDK 17+ may crash frequently, during JVM Hotspot optimization
> of caffeine cache class.
> This is due to a JDK bug
> ([https://bugs.openjdk.org/browse/JDK-8285835|https://bugs.openjdk.org/browse/JDK-8285835)]),
> but may not be fixed soon in JDK17, so we should make a workaround to
> protect our users. The bug is also reported in caffeine project
> ([https://github.com/ben-manes/caffeine/issues/797]).
> So there are a few possible ways to avoid this
> * Run Solr 9 on JDK 11
> * Do not use caffeine cache, find some replacement
> * Caffeine cache releases a new version that do not suffer the issue, and
> solr uses that
> * Instruct JDK to not optimize that class, using JDK option
> {{-XX:CompileCommand=exclude,com.github.benmanes.caffeine.cache.BoundedLocalCache::put}}
> See users list for examples of this issue seen in the wild:
> [https://lists.apache.org/thread/wg7qtkddd1t5h08okj7gm9qbrpdf0ox6]
> Docker users can set SOLR_OPTS with the JDK option above. Patching the
> official Dockerfile to include this may be the least intrusive fix
> short-term. We should also document the issue on website and perhaps docker
> hub to provide users with a workaround.
> For 9.1 we can hardcode the JDK flag in bin/solr.
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