Cao Manh Dat created SOLR-12073:
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Summary: Mismatch between getting replicas in DUP.finish() and
DUP.setupRequest() can make an update fail
Key: SOLR-12073
URL: https://issues.apache.org/jira/browse/SOLR-12073
Project: Solr
Issue Type: Improvement
Security Level: Public (Default Security Level. Issues are Public)
Reporter: Cao Manh Dat
Assignee: Cao Manh Dat
The case here is
- Leader receive an update and forward the update to replicaA and replicaB
- replicaA is getting DOWN, hence leader failed to send the update to replicaA
- in DUP.finish(), leader get current active replicas of it shard, found only
replicaB
** in 7.2: the leader does not put replicaA into LIR, and return the update as
a success. This is not good because replicaA can win the election when it comes
back, causing consistency problem.
** in the current code (7.3): the leader does not put replicaA into LIR, but
return the update as a failure
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