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https://issues.apache.org/jira/browse/HDDS-1371?focusedWorklogId=254670&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-254670
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ASF GitHub Bot logged work on HDDS-1371:
----------------------------------------
Author: ASF GitHub Bot
Created on: 05/Jun/19 21:24
Start Date: 05/Jun/19 21:24
Worklog Time Spent: 10m
Work Description: bharatviswa504 commented on pull request #703:
HDDS-1371. Download RocksDB checkpoint from OM Leader to Follower.
URL: https://github.com/apache/hadoop/pull/703#discussion_r290941336
##########
File path: hadoop-hdds/common/src/main/resources/ozone-default.xml
##########
@@ -1700,6 +1700,45 @@
.</description>
</property>
+ <property>
+ <name>ozone.om.ratis.snapshot.dir</name>
+ <value/>
+ <tag>OZONE, OM, STORAGE, MANAGEMENT, RATIS</tag>
+ <description>This directory is used for storing OM's snapshot
+ related files like the ratisSnapshotIndex and DB checkpoint from leader
+ OM.
+ If undefined, OM snapshot dir will fallback to
ozone.om.ratis.storage.dir.
Review comment:
Ya ur right. In my earlier comment, the last thing I mean is
ozone.metadata.dir, but written it wrongly.
Ya, it looks good to me. As we already have fall back mentioned for
ozone.om.ratis.storage.dir during the property description.
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Issue Time Tracking
-------------------
Worklog Id: (was: 254670)
Time Spent: 5h 50m (was: 5h 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: 5h 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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