[jira] [Updated] (SOLR-9140) Replace some state polling with CollectionStateWatchers

["Alan Woodward (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SOLR-9140?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Alan Woodward updated SOLR-9140:
--------------------------------
    Attachment: SOLR-9140.patch

Bringing this patch up to date.  The teething problems with CollectionStateWatchers have all been ironed out, so I think this can be added back without causing any problems.

This changes knocks a couple of seconds off collection creation, which should speed up some of our tests.

> 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
>             Fix For: 6.2, master (7.0)
>
>         Attachments: SOLR-9140.patch, 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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