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Owen O'Malley commented on HADOOP-5784: --------------------------------------- This looks good, but I wish there was a good way to set up a test case. I guess the best way would be to create a JobTracker and call the heartbeat method and observe the requested heartbeat interval. > The length of the heartbeat cycle should be configurable. > --------------------------------------------------------- > > Key: HADOOP-5784 > URL: https://issues.apache.org/jira/browse/HADOOP-5784 > Project: Hadoop Core > Issue Type: Improvement > Components: mapred > Reporter: Owen O'Malley > Assignee: Amareshwari Sriramadasu > Fix For: 0.21.0 > > Attachments: patch-5784.txt > > > Currently, the hearbeat cycle is set to (# nodes / 100) in seconds. This can > be too long for clusters that need to run low latency jobs. We should make > the number of heartbeats that should arrive a second configurable. -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.