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https://issues.apache.org/jira/browse/HBASE-18352?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16215032#comment-16215032
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ramkrishna.s.vasudevan commented on HBASE-18352:
------------------------------------------------

{code}
          ServerName target = null;
          for (ServerName tmp: localServers) {
            if (tmp.getPort() == oldServerName.getPort()) {
              target = tmp;
              break;
            }
if (target == null) {
            target = randomAssignment(cluster, region, localServers);
          }
          }
{code}
The code goes here and I think that is the reason why sometimes the assignment 
becomes random. 

> Enable Replica tests that were disabled by Proc-V2 AM in HBASE-14614
> --------------------------------------------------------------------
>
>                 Key: HBASE-18352
>                 URL: https://issues.apache.org/jira/browse/HBASE-18352
>             Project: HBase
>          Issue Type: Bug
>          Components: test
>    Affects Versions: 2.0.0-alpha-1
>            Reporter: Stephen Yuan Jiang
>            Assignee: huaxiang sun
>
> The following replica tests were disabled by Core Proc-V2 AM in HBASE-14614:
> - Disabled parts of...testCreateTableWithMultipleReplicas in 
> TestMasterOperationsForRegionReplicas There is an issue w/ assigning more 
> replicas if number of replicas is changed on us. See '/* DISABLED!!!!! FOR 
> NOW!!!!'.
> - Disabled testRegionReplicasOnMidClusterHighReplication in 
> TestStochasticLoadBalancer2
> - Disabled testFlushAndCompactionsInPrimary in TestRegionReplicas
> This JIRA tracks the work to enable them (or modify/remove if not applicable).



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