Andrew Onischuk created AMBARI-8890:
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Summary: Ambari detects hive processes by pid, not reliable method
Key: AMBARI-8890
URL: https://issues.apache.org/jira/browse/AMBARI-8890
Project: Ambari
Issue Type: Bug
Reporter: Andrew Onischuk
Assignee: Andrew Onischuk
Fix For: 2.0.0
PROBLEM:
Ambari 1.6.1 detects whether processes are running by the presence of pid
files. This may not be a problem for datanodes and nodemanagers, but it is a
problem for hive metastore and hiveserver2. If there are hive metastore and
hive server2 processes running, but pid files are missing, Ambari will start
another instance. The end result is that hive services will not function.
There have been quite some customers encountered this problem. Ambari should
not rely on pid file.
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