[jira] [Created] (SOLR-13653) java (10 & 11) HashMap bug can trigger AssertionError when using SolrCaches

["Hoss Man (JIRA)" <ji...@apache.org>]

Hoss Man created SOLR-13653:
-------------------------------

             Summary: java (10 & 11) HashMap bug can trigger AssertionError when using SolrCaches
                 Key: SOLR-13653
                 URL: https://issues.apache.org/jira/browse/SOLR-13653
             Project: Solr
          Issue Type: Bug
      Security Level: Public (Default Security Level. Issues are Public)
            Reporter: Hoss Man


we've seen some java11 jenkins builds that have failed due to an AssertionError being thrown by HashMap.put as used in LRUCache -- in at least one case these failures are semi-reproducible. (the occasional "success" is likely due to some unpredictibility in thread contention)

Some cursory investigation suggests that JDK-8205399, first identified in java10, and fixed in java12-b26...

https://bugs.openjdk.java.net/browse/JDK-8205399

There does not appear to be anything we can do to mitigate this problem in Solr.  
It's also not clear to me based on th comments in JDK-8205399 if the underlying problem can cause problems for end users running w/assertions disabled, or if it just results in sub-optimal performance



--
This message was sent by Atlassian JIRA
(v7.6.14#76016)

---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscribe@lucene.apache.org
For additional commands, e-mail: dev-help@lucene.apache.org