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https://issues.apache.org/jira/browse/SOLR-11685?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17751822#comment-17751822
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ASF subversion and git services commented on SOLR-11685:
--------------------------------------------------------
Commit 209ba014fb80e1fcf2de89ebb131ac556dc6d802 in solr's branch
refs/heads/main from David Smiley
[ https://gitbox.apache.org/repos/asf?p=solr.git;h=209ba014fb8 ]
SOLR-11685: use HTTP INVALID_STATE for ZK state issues in
DistributedZkUpdateProcessor (#1484)
When SolrCloud shard leaders change while indexing updates arrive, Solr could
fail and return
a HTTP 503 status. Switched to 510 so that CloudSolrClient will auto-retry it
and probably succeed.
> Should be retry-able: "ClusterState says we are the leader ..., but locally
> we don't think so"
> ----------------------------------------------------------------------------------------------
>
> Key: SOLR-11685
> URL: https://issues.apache.org/jira/browse/SOLR-11685
> Project: Solr
> Issue Type: Improvement
> Components: SolrCloud
> Reporter: Varun Thacker
> Assignee: David Smiley
> Priority: Major
> Attachments: jenkins_7x_257.log, jenkins_master_7045.log,
> solr_master_7574.log, solr_master_8983.log
>
> Time Spent: 1h 10m
> Remaining Estimate: 0h
>
> When indexing to SolrCloud, an error may occur: "ClusterState says we are the
> leader ..., but locally we don't think so". It's temporary and should be
> retried by SolrJ.
> ----
> Original title: "CollectionsAPIDistributedZkTest.testCollectionsAPI fails
> regularly with leader mismatch"
> Original description by Varun:
> I've been noticing lots of failures on Jenkins where the document add get's
> rejected because of leader conflict and throws an error like
> {code}
> ClusterState says we are the leader
> (https://127.0.0.1:38715/solr/awhollynewcollection_0_shard2_replica_n2), but
> locally we don't think so. Request came from null
> {code}
> Scanning Jenkins logs I see that these failures have increased since Sept
> 28th and has been failing daily.
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