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https://issues.apache.org/jira/browse/SOLR-12073?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Cao Manh Dat updated SOLR-12073:
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Description:
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
- 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.
was:
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
> 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
> Priority: Major
>
> 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
> - 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.
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