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https://issues.apache.org/jira/browse/HDDS-1339?focusedWorklogId=220902&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-220902
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ASF GitHub Bot logged work on HDDS-1339:
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Author: ASF GitHub Bot
Created on: 30/Mar/19 17:36
Start Date: 30/Mar/19 17:36
Worklog Time Spent: 10m
Work Description: bharatviswa504 commented on pull request #651:
HDDS-1339. Implement ratis snapshots on OM
URL: https://github.com/apache/hadoop/pull/651#discussion_r270634602
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File path: hadoop-hdds/common/src/main/resources/ozone-default.xml
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@@ -1617,7 +1617,7 @@
<property>
<name>ozone.om.ratis.snapshot.auto.trigger.threshold</name>
- <value>400000L</value>
+ <value>400000</value>
Review comment:
Question: If we have taken a snapshot for every 400k, then after that 200k
transactions have happened, then when follower OM restart's because it knows it
has till 400k only, so will it apply 200k transactions again?
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Issue Time Tracking
-------------------
Worklog Id: (was: 220902)
Time Spent: 2.5h (was: 2h 20m)
> Implement Ratis Snapshots on OM
> -------------------------------
>
> Key: HDDS-1339
> URL: https://issues.apache.org/jira/browse/HDDS-1339
> Project: Hadoop Distributed Data Store
> Issue Type: Sub-task
> Reporter: Hanisha Koneru
> Assignee: Hanisha Koneru
> Priority: Major
> Labels: pull-request-available
> Time Spent: 2.5h
> Remaining Estimate: 0h
>
> For bootstrapping and restarting OMs, we need to implement snapshots in OM.
> The OM state maintained by RocksDB will be checkpoint-ed on demand. Ratis
> snapshots will only preserve the last applied log index by the State Machine
> on disk. This index will be stored in file in the OM metadata dir.
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