Scott Blum created SOLR-8722:
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Summary: Don't force a full ZkStateReader refresh on every
Overseer operation
Key: SOLR-8722
URL: https://issues.apache.org/jira/browse/SOLR-8722
Project: Solr
Issue Type: Improvement
Components: SolrCloud
Affects Versions: 5.4.1
Reporter: Scott Blum
Assignee: Mark Miller
Attachments: SOLR-8696.patch, SOLR-8696.patch
ZkController.publishAndWaitForDownStates() occurs before overseer election.
That means if there is currently no overseer, there is ironically no one to
actually service the down state changes it's waiting on. This particularly
affects a single-node cluster such as you might run locally for development.
Additionally, we're doing an unnecessary ZkStateReader forced refresh on all
Overseer operations. This isn't necessary because ZkStateReader keeps itself
up to date.
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