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Eli Collins commented on HDFS-2769: ----------------------------------- Shared storage does not imply a single point of failure. There are eg HA filers, nic bonding, etc. though I agree in this scenario the availability is limited by the availability of the shared storage. I also agree that is a deficiency we need to address, by supporting multiple shared dirs (HDFS-2782), followed by removing the shared storage requirement. > HA: When HA is enabled with a shared edits dir, that dir should be marked > required > ---------------------------------------------------------------------------------- > > Key: HDFS-2769 > URL: https://issues.apache.org/jira/browse/HDFS-2769 > Project: Hadoop HDFS > Issue Type: Sub-task > Components: ha, name-node > Affects Versions: HA branch (HDFS-1623) > Reporter: Aaron T. Myers > Assignee: Aaron T. Myers > Attachments: HDFS-2769-HDFS-1623.patch > > > HDFS-2430 introduced the concept of "required" edits/name dirs, which are not > treated as redundant when considering NN storage failure. When a shared edits > dir is used, this should automatically be marked as required. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa For more information on JIRA, see: http://www.atlassian.com/software/jira