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Posted to issues@hive.apache.org by "Lefty Leverenz (JIRA)" <ji...@apache.org> on 2017/10/01 06:49:02 UTC

[jira] [Commented] (HIVE-16895) Multi-threaded execution of bootstrap dump of partitions

    [ https://issues.apache.org/jira/browse/HIVE-16895?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16187297#comment-16187297 ] 

Lefty Leverenz commented on HIVE-16895:
---------------------------------------

Doc update:  HIVE-17625 changes the default value to 100, also in release 3.0.0.

The wiki has been updated:

* [hive.repl.partitions.dump.parallelism | https://cwiki.apache.org/confluence/display/Hive/Configuration+Properties#ConfigurationProperties-hive.repl.partitions.dump.parallelism]

>  Multi-threaded execution of bootstrap dump of partitions
> ---------------------------------------------------------
>
>                 Key: HIVE-16895
>                 URL: https://issues.apache.org/jira/browse/HIVE-16895
>             Project: Hive
>          Issue Type: Sub-task
>          Components: HiveServer2
>    Affects Versions: 3.0.0
>            Reporter: anishek
>            Assignee: anishek
>             Fix For: 3.0.0
>
>         Attachments: HIVE-16895.1.patch, HIVE-16895.2.patch
>
>
> to allow faster execution of bootstrap dump phase we dump multiple partitions from same table simultaneously. 
> even though dumping  functions is  not going to be a blocker, moving to similar execution modes for all metastore objects will make code more coherent. 
> Bootstrap dump at db level does :
> * boostrap of all tables
> ** boostrap of all partitions in a table.  (scope of current jira) 
> * boostrap of all functions 



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