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https://issues.apache.org/jira/browse/SOLR-9140?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Alan Woodward updated SOLR-9140:
--------------------------------
Attachment: SOLR-9140.patch
Updated patch. This also seems to fix the occasional failures in
TestCollectionStateWatchers where a node never properly comes up.
The original patch replaced some polling in the 'delete collection' handling
part of OverseerCollectionMessageProcessor, but that caused some test failures
where the client that was issuing the delete didn't get its collection state
updated quickly enough and so was checking stale state. One way round this
might be to make the list-collection command go via the Overseer, so that it
always gets the latest state, but that's for another issue. For now I've just
not included that change.
> Replace some state polling with CollectionStateWatchers
> -------------------------------------------------------
>
> Key: SOLR-9140
> URL: https://issues.apache.org/jira/browse/SOLR-9140
> Project: Solr
> Issue Type: Improvement
> Reporter: Alan Woodward
> Assignee: Alan Woodward
> Priority: Minor
> Attachments: SOLR-9140.patch, SOLR-9140.patch
>
>
> There are a few places in ZkController and the collection processing code
> that directly query ZK for collection state, and then wait and poll for
> expected state changes. We can now replace these with
> CollectionStateWatchers.
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