Vincent Poon created HBASE-28567:
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Summary: Race condition causes MetaRegionLocationCache to never
set watcher to populate meta location
Key: HBASE-28567
URL: https://issues.apache.org/jira/browse/HBASE-28567
Project: HBase
Issue Type: Bug
Affects Versions: 2.5.8, 3.0.0
Reporter: Vincent Poon
Assignee: Vincent Poon
{{ZKWatcher#getMetaReplicaNodesAndWatchChildren()}} attempts to set a a watch
on the base /hbase znode children using
{{ZKUtil.listChildrenAndWatchForNewChildren()}}, but if the node does not
exist, no watch gets set.
We've seen this in the test container Trino uses over at
[trino/21569|https://github.com/trinodb/trino/pull/21569] , where ZK, master,
and RS are all run in the same container.
The fix is to throw if the node does not exist so that
{{MetaRegionLocationCache}} can retry until the node gets created.
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