[ https://issues.apache.org/jira/browse/HADOOP-1984?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Amar Kamat updated HADOOP-1984: ------------------------------- Fix Version/s: 0.16.0 Affects Version/s: (was: 0.14.0) 0.16.0 Status: Patch Available (was: Open) > some reducer stuck at copy phase and progress extremely slowly > -------------------------------------------------------------- > > Key: HADOOP-1984 > URL: https://issues.apache.org/jira/browse/HADOOP-1984 > Project: Hadoop > Issue Type: Bug > Components: mapred > Affects Versions: 0.16.0 > Reporter: Runping Qi > Priority: Critical > Fix For: 0.16.0 > > Attachments: HADOOP-1984.patch > > > In many cases, some reducers got stuck at copy phase, progressing extremely > slowly. > The entire cluster seems doing nothing. This causes a very bad long tails of > otherwise well tuned map/red jobs. -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.