The length of the heartbeat cycle should be configurable.
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Key: HADOOP-5784
URL: https://issues.apache.org/jira/browse/HADOOP-5784
Project: Hadoop Core
Issue Type: Improvement
Components: mapred
Reporter: Owen O'Malley
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.
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