[SOLR-11685] Should be retry-able: "ClusterState says we are the leader ..., but locally we don't think so"

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 9.4
• Component/s: SolrCloud
• Assignee: David Smiley
• Reporter: Varun Thacker
• Created: 27/Nov/17 20:42
• Updated: 15/Oct/23 19:57
• Resolved: 08/Aug/23 01:27

Description

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.

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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

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

Scanning Jenkins logs I see that these failures have increased since Sept 28th and has been failing daily.

Issue Links

• links to: GitHub Pull Request #1484