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From "ASF subversion and git services (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SOLR-8745) Deprecate ZkStateReader.updateClusterState(), remove uses
Date Mon, 07 Mar 2016 09:33:40 GMT

    [ https://issues.apache.org/jira/browse/SOLR-8745?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15182794#comment-15182794
] 

ASF subversion and git services commented on SOLR-8745:
-------------------------------------------------------

Commit 093a8ce57c06f1bf2f71ddde52dcc7b40cbd6197 in lucene-solr's branch refs/heads/master
from [~shalinmangar]
[ https://git-wip-us.apache.org/repos/asf?p=lucene-solr.git;h=093a8ce ]

SOLR-8745: Deprecate costly ZkStateReader.updateClusterState(), replace with a narrow forceUpdateCollection(collection)


> Deprecate ZkStateReader.updateClusterState(), remove uses
> ---------------------------------------------------------
>
>                 Key: SOLR-8745
>                 URL: https://issues.apache.org/jira/browse/SOLR-8745
>             Project: Solr
>          Issue Type: Improvement
>          Components: SolrCloud
>    Affects Versions: 5.4.1
>            Reporter: Scott Blum
>            Assignee: Shalin Shekhar Mangar
>              Labels: patch, performance, solrcloud
>         Attachments: SOLR-8745.patch, SOLR-8745.patch
>
>
> Forcing a full ZK cluster state update creates a lot of unnecessary work and load at
scale.  We need to deprecate and remove existing callers.
> - The one at the start of ClusterStateUpdater thread is fine, it's a one-time thing.
> - The one in OverseerCollectionMessageHandler is getting removed in SOLR-8722
> - The rest of them can be replaced with a version that only updates a single collection;
not everything!
> Patch will be forthcoming.



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