[ http://issues.apache.org/jira/browse/HADOOP-195?page=comments#action_12378927 ]
Owen O'Malley commented on HADOOP-195: -------------------------------------- Ok, last night's run with the parallel fetches (upto 5 at a time) finished in 14.13 hours. The input data and cluster were the same as monday's run. None of the reduces failed, which helped. After I take the kids to school and get into the office, I'll take a closer look at the logs. > transfer map output transfer with http instead of rpc > ----------------------------------------------------- > > Key: HADOOP-195 > URL: http://issues.apache.org/jira/browse/HADOOP-195 > Project: Hadoop > Type: Improvement > Components: mapred > Versions: 0.2 > Reporter: Owen O'Malley > Assignee: Owen O'Malley > Fix For: 0.3 > Attachments: netstat.log, netstat.xls > > The data transfer of the map output should be transfered via http instead > rpc, because rpc is very slow for this application and the timeout behavior > is suboptimal. (server sends data and client ignores it because it took more > than 10 seconds to be received.) -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://issues.apache.org/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira
