[jira] [Assigned] (HIVE-26597) Fix unsetting of db prop repl.target.for in ReplicationSemanticAnalyzer

["Teddy Choi (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HIVE-26597?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Teddy Choi reassigned HIVE-26597:
---------------------------------


> Fix unsetting of db prop repl.target.for in ReplicationSemanticAnalyzer
> -----------------------------------------------------------------------
>
>                 Key: HIVE-26597
>                 URL: https://issues.apache.org/jira/browse/HIVE-26597
>             Project: Hive
>          Issue Type: Bug
>            Reporter: Teddy Choi
>            Assignee: Rakshith C
>            Priority: Major
>
> when repl policy is set from A -> B
>  * *repl.target.for* is set on B.
> when failover is initiated
>  * *repl.failover.endpoint* = *'TARGET'* is set on B.
>  
> now when reverse policy is set up from {*}A <- B{*};
> there is a check in [ReplicationSemanticAnalyzer#initReplDump|https://github.com/apache/hive/blob/master/ql/src/java/org/apache/hadoop/hive/ql/parse/ReplicationSemanticAnalyzer.java#L196] which checks for existence of these two properties and if they are set,
> it unsets the *repl.target.for* property.
> Because of this optimisedBootstrap won't be triggered because it checks for the existence of *repl.target.for* property during repl dump on target [HERE|https://github.com/apache/hive/blob/master/ql/src/java/org/apache/hadoop/hive/ql/exec/repl/OptimisedBootstrapUtils.java#L93].
>  
> Fix : remove the code which unsets repl.target.for in ReplicationSemanticAnalyzer, because second dump cycle of optimized bootstrap unsets it.



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