Mano Kovacs created SOLR-11417:
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Summary: Crashed leader's hanging emphemral will make restarting
followers stuck in recovering
Key: SOLR-11417
URL: https://issues.apache.org/jira/browse/SOLR-11417
Project: Solr
Issue Type: Bug
Security Level: Public (Default Security Level. Issues are Public)
Affects Versions: 6.3
Reporter: Mano Kovacs
If replicas are starting up after leader crash and within the ZK session
timeout, replicas
* will lose leader election due to hanging ephemerals
* will read stale data from ZK about current leader
* will fail recovery and stuck in recovering state
If leader is down permanently (eg. hardware failure) and all replicas are
affected, shard will not come up (see also SOLR-7065).
Tested on 6.3. See attached image for details.
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