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Todd Lipcon commented on HDFS-1521: ----------------------------------- Hey Ivan. Sorry, it's been "on ice" but mostly just due to other commitments getting in the way for me. I need to circle back on Konstantin's last pieces of feedback - will try to prioritize it for this weekend. > Persist transaction ID on disk between NN restarts > -------------------------------------------------- > > Key: HDFS-1521 > URL: https://issues.apache.org/jira/browse/HDFS-1521 > Project: Hadoop HDFS > Issue Type: Sub-task > Components: name-node > Affects Versions: 0.22.0 > Reporter: Todd Lipcon > Assignee: Todd Lipcon > Attachments: hdfs-1521.3.txt, hdfs-1521.4.txt, hdfs-1521.5.txt, > hdfs-1521.txt, hdfs-1521.txt > > > For HDFS-1073 and other future work, we'd like to have the concept of a > transaction ID that is persisted on disk with the image/edits. We already > have this concept in the NameNode but it resets to 0 on restart. We can also > use this txid to replace the _checkpointTime_ field, I believe. -- This message is automatically generated by JIRA. - For more information on JIRA, see: http://www.atlassian.com/software/jira