Alan Gates commented on HIVE-14779:

Ok, so I agree this doesn't make the situation any worse, and in fact makes it 
better since it will avoid the situation where everything dies but the 
heartbeat thread and that thread keeps the VM alive and keeps heartbeating.  At 
some point in the future I do think we should solve the issue where a hanging 
CLI client could hang the system.

> make DbTxnManager.HeartbeaterThread a daemon
> --------------------------------------------
>                 Key: HIVE-14779
>                 URL: https://issues.apache.org/jira/browse/HIVE-14779
>             Project: Hive
>          Issue Type: Bug
>          Components: Transactions
>    Affects Versions: 1.3.0, 2.1.0
>            Reporter: Eugene Koifman
>            Assignee: Eugene Koifman
>            Priority: Minor
>         Attachments: HIVE-14779.patch
> setDaemon(true);
> make heartbeaterThreadPoolSize static 

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