Shawn Heisey created SOLR-12727:
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             Summary: Upgrade ZooKeeper dependency to 3.4.13
                 Key: SOLR-12727
                 URL: https://issues.apache.org/jira/browse/SOLR-12727
             Project: Solr
          Issue Type: Improvement
      Security Level: Public (Default Security Level. Issues are Public)
          Components: SolrCloud
    Affects Versions: 7.4
            Reporter: Shawn Heisey


Upgrade ZK dependency to 3.4.13.  This fixes ZOOKEEPER-2184 which will make the 
ZK client re-resolve the server hostnames when a connection fails.  This will 
fix issues where a failed ZK container is replaced with a new one that has a 
different IP address and DNS gets updated with the new address.

Typically these upgrades do not require code changes, but that should be 
verified.



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