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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Work logged] (HDDS-1371) Download RocksDB checkpoint from OM Leader to Follower
Date Sat, 13 Apr 2019 00:17:00 GMT

     [ https://issues.apache.org/jira/browse/HDDS-1371?focusedWorklogId=227061&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-227061

ASF GitHub Bot logged work on HDDS-1371:

                Author: ASF GitHub Bot
            Created on: 13/Apr/19 00:16
            Start Date: 13/Apr/19 00:16
    Worklog Time Spent: 10m 
      Work Description: hanishakoneru commented on issue #703: HDDS-1371. Download RocksDB
checkpoint from OM Leader to Follower.
URL: https://github.com/apache/hadoop/pull/703#issuecomment-482758497
   Thank you @arp7 for the review. Addressed your review comments and added a unit test.
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Issue Time Tracking

    Worklog Id:     (was: 227061)
    Time Spent: 1h 50m  (was: 1h 40m)

> Download RocksDB checkpoint from OM Leader to Follower
> ------------------------------------------------------
>                 Key: HDDS-1371
>                 URL: https://issues.apache.org/jira/browse/HDDS-1371
>             Project: Hadoop Distributed Data Store
>          Issue Type: Sub-task
>            Reporter: Hanisha Koneru
>            Assignee: Hanisha Koneru
>            Priority: Major
>              Labels: pull-request-available
>          Time Spent: 1h 50m
>  Remaining Estimate: 0h
> If a follower OM is lagging way behind the leader OM or in case of a restart or bootstrapping,
a follower OM might need RocksDB checkpoint from the leader to catch up with it. This is because
the leader might have purged its logs after taking a snapshot.
>  This Jira aims to add support to download a RocksDB checkpoint from leader OM to follower
OM through a HTTP servlet. We reuse the DBCheckpoint servlet used by Recon server. 

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