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From "Jonathan Hurley (JIRA)" <j...@apache.org>
Subject [jira] [Created] (AMBARI-18684) Webhcat server start failed during EU with BindException
Date Mon, 24 Oct 2016 16:49:58 GMT
Jonathan Hurley created AMBARI-18684:
----------------------------------------

             Summary: Webhcat server start failed during EU with BindException
                 Key: AMBARI-18684
                 URL: https://issues.apache.org/jira/browse/AMBARI-18684
             Project: Ambari
          Issue Type: Bug
          Components: ambari-server
    Affects Versions: 2.2.0
            Reporter: Jonathan Hurley
            Assignee: Jonathan Hurley
            Priority: Blocker
             Fix For: 2.5.0


WebHCat may fail to restart during an upgrade due to the following exception:

{code}
Traceback (most recent call last):
  File "/var/lib/ambari-agent/cache/common-services/HIVE/0.12.0.2.0/package/scripts/webhcat_server.py",
line 155, in <module>
    WebHCatServer().execute()
  File "/usr/lib/python2.6/site-packages/resource_management/libraries/script/script.py",
line 219, in execute
    method(env)
  File "/usr/lib/python2.6/site-packages/resource_management/libraries/script/script.py",
line 530, in restart
    self.start(env, upgrade_type=upgrade_type)
  File "/var/lib/ambari-agent/cache/common-services/HIVE/0.12.0.2.0/package/scripts/webhcat_server.py",
line 42, in start
    webhcat_service(action='start', upgrade_type=upgrade_type)
  File "/usr/lib/python2.6/site-packages/ambari_commons/os_family_impl.py", line 89, in thunk
    return fn(*args, **kwargs)
  File "/var/lib/ambari-agent/cache/common-services/HIVE/0.12.0.2.0/package/scripts/webhcat_service.py",
line 54, in webhcat_service
    environment = environ)
  File "/usr/lib/python2.6/site-packages/resource_management/core/base.py", line 154, in __init__
    self.env.run()
  File "/usr/lib/python2.6/site-packages/resource_management/core/environment.py", line 160,
in run
    self.run_action(resource, action)
  File "/usr/lib/python2.6/site-packages/resource_management/core/environment.py", line 124,
in run_action
    provider_action()
  File "/usr/lib/python2.6/site-packages/resource_management/core/providers/system.py", line
238, in action_run
    tries=self.resource.tries, try_sleep=self.resource.try_sleep)
  File "/usr/lib/python2.6/site-packages/resource_management/core/shell.py", line 70, in inner
    result = function(command, **kwargs)
  File "/usr/lib/python2.6/site-packages/resource_management/core/shell.py", line 92, in checked_call
    tries=tries, try_sleep=try_sleep)
  File "/usr/lib/python2.6/site-packages/resource_management/core/shell.py", line 140, in
_call_wrapper
    result = _call(command, **kwargs_copy)
  File "/usr/lib/python2.6/site-packages/resource_management/core/shell.py", line 291, in
_call
    raise Fail(err_msg)
resource_management.core.exceptions.Fail: Execution of 'cd /var/run/webhcat ; /usr/hdp/current/hive-webhcat/sbin/webhcat_server.sh
start' returned 1. 
{code}

{noformat}
WARN  | 17 Oct 2016 12:53:02,999 | org.eclipse.jetty.util.component.AbstractLifeCycle | FAILED
org.eclipse.jetty.server.Server@19a639d8: java.net.BindException: Address already in use
java.net.BindException: Address already in use
        at sun.nio.ch.Net.bind0(Native Method)
        at sun.nio.ch.Net.bind(Net.java:444)
        at sun.nio.ch.Net.bind(Net.java:436)
        at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:214)
{noformat}

The problem seems to be caused by the failure of WebHCat to stop before being upgraded. There
was code added in AMBARI-12695 to address the issues with WebHCat not stopping, however, it
doesn't look correct.

- Return Code 0 (prevents the kill -9 from running due to {{not_if}}
-- 
{code}
! (ls /var/run/webhcat/webhcat.pid >/dev/null 2>&1 && ps -p `/var/lib/ambari-agent/ambari-sudo.sh
su hcat -l -s /bin/bash -c 'cat /var/run/webhcat/webhcat.pid'` >/dev/null 2>&1)
|| ( sleep 10 && ! (ls /var/run/webhcat/webhcat.pid >/dev/null 2>&1 &&
ps -p `ambari-sudo.sh su hcat -l -s /bin/bash -c 'cat /var/run/webhcat/webhcat.pid'` >/dev/null
2>&1) )
{code}

- Return Code 0 (prevents Fail from being raised)
-- 
{code}
! (ls /var/run/webhcat/webhcat.pid >/dev/null 2>&1 && ps -p `/var/lib/ambari-agent/ambari-sudo.sh
su hcat -l -s /bin/bash -c 'cat /var/run/webhcat/webhcat.pid'` >/dev/null 2>&1)
{code}



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