Expired launching tasks affect small jobs' execution time
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Key: HADOOP-5424
URL: https://issues.apache.org/jira/browse/HADOOP-5424
Project: Hadoop Core
Issue Type: Bug
Components: mapred
Reporter: Vinod K V
Currently when a task is given to a TT, the JT doesn't mark the task as running
till the TT responds back to the JT. And within 10 mins(hard-coded), if the
task doesn't come back, then only the task gets relaunched. For small jobs,
this is a lot of time.
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