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From "Shai Erera (JIRA)" <j...@apache.org>
Subject [jira] [Created] (SOLR-8561) Add fallback to ZkController.getLeaderProps for a mixed 5.4-pre-5.4 deployments
Date Mon, 18 Jan 2016 04:19:39 GMT
Shai Erera created SOLR-8561:
--------------------------------

             Summary: 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


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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