[ https://issues.apache.org/jira/browse/HDFS-4508?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Daisuke Kobayashi reassigned HDFS-4508: --------------------------------------- Assignee: Daisuke Kobayashi > Two minor improvements to the QJM Deployment docs > ------------------------------------------------- > > Key: HDFS-4508 > URL: https://issues.apache.org/jira/browse/HDFS-4508 > Project: Hadoop HDFS > Issue Type: Bug > Components: documentation > Affects Versions: 2.0.3-alpha > Reporter: Harsh J > Assignee: Daisuke Kobayashi > Priority: Minor > > Suggested by ML user Azurry, the docs at > http://hadoop.apache.org/docs/current/hadoop-yarn/hadoop-yarn-site/HDFSHighAvailabilityWithQJM.html#Deployment_details > can be improved for two specific lines: > {quote} > * If you have already formatted the NameNode, or are converting a > non-HA-enabled cluster to be HA-enabled, you should now copy over the > contents of your NameNode metadata directories to the other, unformatted > NameNode by running the command "hdfs namenode -bootstrapStandby" on the > unformatted NameNode. Running this command will also ensure that the > JournalNodes (as configured by dfs.namenode.shared.edits.dir) contain > sufficient edits transactions to be able to start both NameNodes. > * If you are converting a non-HA NameNode to be HA, you should run the > command "hdfs -initializeSharedEdits", which will initialize the JournalNodes > with the edits data from the local NameNode edits directories. > {quote} -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira