[jira] [Commented] (HIVE-16092) Generate and use universal mmId instead of per db/table

2017-03-03 Thread Sergey Shelukhin (JIRA)

[ 
https://issues.apache.org/jira/browse/HIVE-16092?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15895447#comment-15895447
 ] 

Sergey Shelukhin commented on HIVE-16092:
-

I mean, eventually we won't be able to get out of having the global txnid, 
right? So might as well do it now. Do you have some existing code in particular 
that would break when that is done, or some specific future scenario?

> Generate and use universal mmId instead of per db/table
> ---
>
> Key: HIVE-16092
> URL: https://issues.apache.org/jira/browse/HIVE-16092
> Project: Hive
>  Issue Type: Sub-task
>Reporter: Wei Zheng
>Assignee: Wei Zheng
>
> To facilitate later replacement for it with txnId



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[jira] [Commented] (HIVE-16092) Generate and use universal mmId instead of per db/table

2017-03-03 Thread Wei Zheng (JIRA)

[ 
https://issues.apache.org/jira/browse/HIVE-16092?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15895172#comment-15895172
 ] 

Wei Zheng commented on HIVE-16092:
--

sorry, data replication..

> Generate and use universal mmId instead of per db/table
> ---
>
> Key: HIVE-16092
> URL: https://issues.apache.org/jira/browse/HIVE-16092
> Project: Hive
>  Issue Type: Sub-task
>Reporter: Wei Zheng
>Assignee: Wei Zheng
>
> To facilitate later replacement for it with txnId



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[jira] [Commented] (HIVE-16092) Generate and use universal mmId instead of per db/table

2017-03-03 Thread Sergey Shelukhin (JIRA)

[ 
https://issues.apache.org/jira/browse/HIVE-16092?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15895167#comment-15895167
 ] 

Sergey Shelukhin commented on HIVE-16092:
-

What is DR?

> Generate and use universal mmId instead of per db/table
> ---
>
> Key: HIVE-16092
> URL: https://issues.apache.org/jira/browse/HIVE-16092
> Project: Hive
>  Issue Type: Sub-task
>Reporter: Wei Zheng
>Assignee: Wei Zheng
>
> To facilitate later replacement for it with txnId



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[jira] [Commented] (HIVE-16092) Generate and use universal mmId instead of per db/table

2017-03-03 Thread Wei Zheng (JIRA)

[ 
https://issues.apache.org/jira/browse/HIVE-16092?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15895159#comment-15895159
 ] 

Wei Zheng commented on HIVE-16092:
--

On a second thought, this may not be a good idea. Keeping the mmId the way it 
is (per table) is actually beneficial for things like DR. Will need to seek 
alternatives of integrating ACID txn. [~ekoifman]

> Generate and use universal mmId instead of per db/table
> ---
>
> Key: HIVE-16092
> URL: https://issues.apache.org/jira/browse/HIVE-16092
> Project: Hive
>  Issue Type: Sub-task
>Reporter: Wei Zheng
>Assignee: Wei Zheng
>
> To facilitate later replacement for it with txnId



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