Bryan Beaudreault created HBASE-27381:
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Summary: Still seeing 'Stuck' in static initialization creating
RegionInfo instance
Key: HBASE-27381
URL: https://issues.apache.org/jira/browse/HBASE-27381
Project: HBase
Issue Type: Bug
Reporter: Bryan Beaudreault
See https://issues.apache.org/jira/browse/HBASE-24896 for the original
description. Despite having that fix, we are seeing this issue in a 2.4.6-based
deploy. We recently started seeing it as we were moving to centos8. I'm not
sure why the centos version would affect this, otherwise the hbase server
version and java versions were not changing.
We're seeing this in a non-trivial number of new centos8 servers that we spin
up. I'm pushing a hotfix which removes RegionInfo.UNDEFINED to see if that
resolves our issue.
As mentioned in my last comments on that jira, it could be that this field is
still an issue because according to
[https://stackoverflow.com/questions/28631656/runnable-thread-state-but-in-object-wait:]
> Such deadlocks may be caused by a [typical
> bug|https://bugs.openjdk.org/browse/JDK-8037567] when a subclass is
> referenced from a static initializer.
If that's true, in this case MutableRegionInfo is a subclass/implementer of
RegionInfo, so that could trigger it. Granted the linked bug is marked "Not An
Issue".
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