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From "Gopal V (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HIVE-10132) LLAP: Tez heartbeats are delayed by ~500+ ms due to Hadoop IPC client
Date Sat, 28 Mar 2015 05:00:53 GMT
Gopal V created HIVE-10132:
------------------------------

             Summary: LLAP: Tez heartbeats are delayed by ~500+ ms due to Hadoop IPC client
                 Key: HIVE-10132
                 URL: https://issues.apache.org/jira/browse/HIVE-10132
             Project: Hive
          Issue Type: Sub-task
            Reporter: Gopal V


HADOOP-11772 has a clearer bug report of the core issue inside hadoop-common.

Due to the delayed heartbeats reaching the AM, the reducers are losing up-to a couple of seconds
for a 60ms (x10 parallel) mapper + 300ms reducer instead of finishing the query in under a
second.



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