ProcessTree.destroy() is sleeping for 5 seconds holding the task slot
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Key: HADOOP-5748
URL: https://issues.apache.org/jira/browse/HADOOP-5748
Project: Hadoop Core
Issue Type: Bug
Components: mapred
Reporter: Ravi Gummadi
Currently, in ProcessTree.destroy(), after sending SIGTERM to the task JVM, TT
sleeps for 5 seconds(default value of
mapred.tasktracker.tasks.sleeptime-before-sigkill) before sending SIGKILL. This
seems to be blocking the task slot(not getting released) for 5 seconds. We
should avoid this so that another task could be launched in that slot
immediately.
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