[jira] Updated: (MAPREDUCE-1906) Lower minimum heartbeat interval for tasktracker > Jobtracker
[ https://issues.apache.org/jira/browse/MAPREDUCE-1906?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Eli Collins updated MAPREDUCE-1906: --- Component/s: jobtracker > Lower minimum heartbeat interval for tasktracker > Jobtracker > - > > Key: MAPREDUCE-1906 > URL: https://issues.apache.org/jira/browse/MAPREDUCE-1906 > Project: Hadoop Map/Reduce > Issue Type: Improvement > Components: jobtracker >Affects Versions: 0.20.1, 0.20.2 >Reporter: Scott Carey >Assignee: Todd Lipcon > Fix For: 0.20.3, 0.22.0, 0.23.0 > > Attachments: MAPREDUCE-1906-0.21.patch, mapreduce-1906.txt, > mapreduce-1906.txt > > > I get a 0% to 15% performance increase for smaller clusters by making the > heartbeat throttle stop penalizing clusters with less than 300 nodes. > Between 0.19 and 0.20, the default minimum heartbeat interval increased from > 2s to 3s. If a JobTracker is throttled at 100 heartbeats / sec for large > clusters, why should a cluster with 10 nodes be throttled to 3.3 heartbeats > per second? -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.
[jira] Commented: (MAPREDUCE-1906) Lower minimum heartbeat interval for tasktracker > Jobtracker
[ https://issues.apache.org/jira/browse/MAPREDUCE-1906?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12976163#action_12976163 ] Eli Collins commented on MAPREDUCE-1906: +1 The latest patch looks ready to go to me. > Lower minimum heartbeat interval for tasktracker > Jobtracker > - > > Key: MAPREDUCE-1906 > URL: https://issues.apache.org/jira/browse/MAPREDUCE-1906 > Project: Hadoop Map/Reduce > Issue Type: Improvement >Affects Versions: 0.20.1, 0.20.2 >Reporter: Scott Carey >Assignee: Todd Lipcon > Fix For: 0.20.3, 0.22.0, 0.23.0 > > Attachments: MAPREDUCE-1906-0.21.patch, mapreduce-1906.txt, > mapreduce-1906.txt > > > I get a 0% to 15% performance increase for smaller clusters by making the > heartbeat throttle stop penalizing clusters with less than 300 nodes. > Between 0.19 and 0.20, the default minimum heartbeat interval increased from > 2s to 3s. If a JobTracker is throttled at 100 heartbeats / sec for large > clusters, why should a cluster with 10 nodes be throttled to 3.3 heartbeats > per second? -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.
[jira] Updated: (MAPREDUCE-1906) Lower minimum heartbeat interval for tasktracker > Jobtracker
[ https://issues.apache.org/jira/browse/MAPREDUCE-1906?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Eli Collins updated MAPREDUCE-1906: --- Fix Version/s: 0.23.0 0.22.0 0.20.3 > Lower minimum heartbeat interval for tasktracker > Jobtracker > - > > Key: MAPREDUCE-1906 > URL: https://issues.apache.org/jira/browse/MAPREDUCE-1906 > Project: Hadoop Map/Reduce > Issue Type: Improvement >Affects Versions: 0.20.1, 0.20.2 >Reporter: Scott Carey >Assignee: Todd Lipcon > Fix For: 0.20.3, 0.22.0, 0.23.0 > > Attachments: MAPREDUCE-1906-0.21.patch, mapreduce-1906.txt, > mapreduce-1906.txt > > > I get a 0% to 15% performance increase for smaller clusters by making the > heartbeat throttle stop penalizing clusters with less than 300 nodes. > Between 0.19 and 0.20, the default minimum heartbeat interval increased from > 2s to 3s. If a JobTracker is throttled at 100 heartbeats / sec for large > clusters, why should a cluster with 10 nodes be throttled to 3.3 heartbeats > per second? -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.
