commit 81004aff85bd49975902252cd4a67b3c573c5dec Author: Arun C Murthy <acmurthy@apache.org> Date: Tue Mar 1 16:46:16 2011 -0800 Tuning out-of-band heartbeats, introduced a new config: mapreduce.tasktracker.outofband.heartbeat.damper.
hadoop/common/branches/branch-0.20-security-202/src/mapred/org/apache/hadoop/mapred/TaskTracker.java