[ https://issues.apache.org/jira/browse/YARN-90?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13813811#comment-13813811 ]
Hou Song commented on YARN-90: ------------------------------ Thanks for the suggestions. I'm trying to modify my patch, and will upload it soon. However, I don't quite understand your saying "expose this end-to-end and not just metrics". We have been using failed-disk metric in our prodution cluster for a year, and it's good enough for our rapid disk repairment. Enlight me if you have a better way. > NodeManager should identify failed disks becoming good back again > ----------------------------------------------------------------- > > Key: YARN-90 > URL: https://issues.apache.org/jira/browse/YARN-90 > Project: Hadoop YARN > Issue Type: Sub-task > Components: nodemanager > Reporter: Ravi Gummadi > Attachments: YARN-90.1.patch, YARN-90.patch, YARN-90.patch > > > MAPREDUCE-3121 makes NodeManager identify disk failures. But once a disk goes > down, it is marked as failed forever. To reuse that disk (after it becomes > good), NodeManager needs restart. This JIRA is to improve NodeManager to > reuse good disks(which could be bad some time back). -- This message was sent by Atlassian JIRA (v6.1#6144)