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ASF GitHub Bot logged work on HDDS-1339: ---------------------------------------- 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 ########## File path: hadoop-hdds/common/src/main/resources/ozone-default.xml ########## @@ -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? ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org 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. -- This message was sent by Atlassian JIRA (v7.6.3#76005) --------------------------------------------------------------------- To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org