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From "ASF subversion and git services (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SOLR-8561) Add fallback to ZkController.getLeaderProps for a mixed 5.4-pre-5.4 deployments
Date Mon, 08 Feb 2016 22:36:41 GMT

    [ https://issues.apache.org/jira/browse/SOLR-8561?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15137886#comment-15137886
] 

ASF subversion and git services commented on SOLR-8561:
-------------------------------------------------------

Commit a128bd36b26457c7686be8209d985d2753969766 in lucene-solr's branch refs/heads/branch_5_4
from [~shaie]
[ https://git-wip-us.apache.org/repos/asf?p=lucene-solr.git;h=a128bd3 ]

SOLR-8561: Add fallback to ZkController.getLeaderProps for a mixed 5.4-pre-5.4 deployments

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/lucene_solr_5_4@1725212 13f79535-47bb-0310-9956-ffa450edef68


> Add fallback to ZkController.getLeaderProps for a mixed 5.4-pre-5.4 deployments
> -------------------------------------------------------------------------------
>
>                 Key: SOLR-8561
>                 URL: https://issues.apache.org/jira/browse/SOLR-8561
>             Project: Solr
>          Issue Type: Bug
>          Components: SolrCloud
>            Reporter: Shai Erera
>            Assignee: Shai Erera
>             Fix For: 5.5, 5.4.1
>
>         Attachments: SOLR-8561.patch, SOLR-8561.patch
>
>
> See last comments in SOLR-7844. The latter changed the structure of the leader path in
ZK such that upgrading from pre-5.4 to 5.4 is impossible, unless all nodes are taken down.
This issue adds a fallback logic to look for the leader properties on the old ZK node, as
discussed.



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