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https://issues.apache.org/jira/browse/SOLR-12433?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Cao Manh Dat updated SOLR-12433:
--------------------------------
Description:
When digging into RestartWhileUpdatingTest failure, I see that term of replicas
is kinda mess up.
{quote}
[junit4] 1> /collections/collection1/terms/shard1 (0)
[junit4] 1> DATA:
[junit4] 1> {
[junit4] 1> "core_node24_recovering":4,
[junit4] 1> "core_node22":4,
[junit4] 1> "core_node26_recovering":4,
[junit4] 1> "core_node24":2,
[junit4] 1> "core_node26":3}
{quote}
By design, the {{core_node24_recovering}} and {{core_node24}} should be always
equals to each other. The reason here is {{ZkShardTerms.ensureTermsIsHigher}}
also increase the {{core_node24_recovering}} is a higher number. This will lead
to a case when a replica finished recovering but it won't be able to become
active.
> Raft term of a replica is set equals to leader even it failed to receive
> update on recovering
> ---------------------------------------------------------------------------------------------
>
> Key: SOLR-12433
> URL: https://issues.apache.org/jira/browse/SOLR-12433
> Project: Solr
> Issue Type: Improvement
> Security Level: Public(Default Security Level. Issues are Public)
> Reporter: Cao Manh Dat
> Assignee: Cao Manh Dat
> Priority: Major
>
> When digging into RestartWhileUpdatingTest failure, I see that term of
> replicas is kinda mess up.
> {quote}
> [junit4] 1> /collections/collection1/terms/shard1 (0)
> [junit4] 1> DATA:
> [junit4] 1> {
> [junit4] 1> "core_node24_recovering":4,
> [junit4] 1> "core_node22":4,
> [junit4] 1> "core_node26_recovering":4,
> [junit4] 1> "core_node24":2,
> [junit4] 1> "core_node26":3}
> {quote}
> By design, the {{core_node24_recovering}} and {{core_node24}} should be
> always equals to each other. The reason here is
> {{ZkShardTerms.ensureTermsIsHigher}} also increase the
> {{core_node24_recovering}} is a higher number. This will lead to a case when
> a replica finished recovering but it won't be able to become active.
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