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Aaron T. Myers resolved HDFS-3958. ---------------------------------- Resolution: Duplicate Resolving as a duplicate of HDFS-5138, which has a lot more discussion about how best to do this. > Integrate upgrade/finalize/rollback with external journals > ---------------------------------------------------------- > > Key: HDFS-3958 > URL: https://issues.apache.org/jira/browse/HDFS-3958 > Project: Hadoop HDFS > Issue Type: Bug > Components: namenode > Affects Versions: 3.0.0 > Reporter: Todd Lipcon > > Currently the NameNode upgrade/rollback/finalize framework only supports > local storage. With edits being stored in pluggable Journals, this could > create certain difficulties - in particular, rollback wouldn't actually > rollback the external storage to the old state. > We should look at how to expose the right hooks to the external journal > storage to snapshot/rollback/finalize. -- This message was sent by Atlassian JIRA (v6.1#6144)