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From "Lefty Leverenz (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-15448) ChangeManager for replication
Date Wed, 28 Dec 2016 08:36:58 GMT

    [ https://issues.apache.org/jira/browse/HIVE-15448?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15782414#comment-15782414
] 

Lefty Leverenz commented on HIVE-15448:
---------------------------------------

Doc note:  This adds four configuration parameters which need to be documented in the wiki.

*  *hive.repl.cm.enabled*
*  *hive.repl.cmrootdir*
*  *hive.repl.cm.retain*
*  *hive.repl.cm.interval*
* [Configuration Properties -- Replication | https://cwiki.apache.org/confluence/display/Hive/Configuration+Properties#ConfigurationProperties-Replication]

Added a TODOC2.2 label.

(Grumbles:  There's a minor error in the description of *hive.repl.cm.enabled*; and 7 hours
between +1 and commit doesn't give me enough time to find out about new configs.)

> ChangeManager for replication
> -----------------------------
>
>                 Key: HIVE-15448
>                 URL: https://issues.apache.org/jira/browse/HIVE-15448
>             Project: Hive
>          Issue Type: Sub-task
>          Components: repl
>            Reporter: Daniel Dai
>            Assignee: Daniel Dai
>              Labels: TODOC2.2
>             Fix For: 2.2.0
>
>         Attachments: HIVE-15448.1.patch, HIVE-15448.2.patch, HIVE-15448.4.patch
>
>
> The change manager implementation as described in https://cwiki.apache.org/confluence/display/Hive/HiveReplicationv2Development#HiveReplicationv2Development-Changemanagement.
This issue tracks the infrastructure code. Hooking to actions will be tracked in other ticket.
> ReplChangeManager includes:
> * method to generate checksum
> * method to convert file path to cm path
> * method to move table/partition/file into cm
> * thread to clear cm files if expires



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