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https://issues.apache.org/jira/browse/KUDU-1992?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Todd Lipcon resolved KUDU-1992.
-------------------------------
Resolution: Fixed
Fix Version/s: 1.4.0
Fixed in 579cb0b145ad141cd3b49324406c85fe2ca96b15
> heap-use-after-free when running threadlocal cache destructor
> -------------------------------------------------------------
>
> Key: KUDU-1992
> URL: https://issues.apache.org/jira/browse/KUDU-1992
> Project: Kudu
> Issue Type: Bug
> Components: cfile, util
> Affects Versions: 1.4.0
> Reporter: Todd Lipcon
> Assignee: Todd Lipcon
> Priority: Blocker
> Fix For: 1.4.0
>
>
> After KUDU-680, we started to see the occasional heap-use-after-free when
> destructing the new thread-local cache. The issue seems to be:
> - the thread uses LongAdder somewhere, which allocates a threadlocal 'struct
> HashCode'
> - the thread also uses the threadlocal block cache
> On thread destruction, we are running the LongAdder HashCode destructor
> first, and then running the threadlocal cache destructor. The threadlocal
> cache runs 'Release()' on the cached blocks, which tries to update the
> cache's LongAdder-based metrics. This then accesses the hashcode threadlocal
> which has already been destructed.
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