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https://issues.apache.org/jira/browse/AMBARI-12155?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14616962#comment-14616962
 ] 

Dhruv Kumar commented on AMBARI-12155:
--------------------------------------

Can you upload the Falcon logs? {{/var/log/falcon}} 

Do the logs contain exceptions similar to:

{code}
ERROR - [main:] ~ Failed to start ActiveMQ JMS Message Broker. Reason: 
java.io.IOException: Invalid location: 1:6763311, : 
java.lang.NegativeArraySizeException (BrokerService:528)
java.io.IOException: Invalid location: 1:6763311, : 
java.lang.NegativeArraySizeException
        at 
org.apache.kahadb.journal.DataFileAccessor.readRecord(DataFileAccessor.java:94)
        at org.apache.kahadb.journal.Journal.read(Journal.java:596)
        at 
org.apache.activemq.store.kahadb.MessageDatabase.load(MessageDatabase.java:786)
        at 
org.apache.activemq.store.kahadb.MessageDatabase.recoverProducerAudit(MessageDatabase.java:484)
        at 
org.apache.activemq.store.kahadb.MessageDatabase.recover(MessageDatabase.java:438)
        at 
org.apache.activemq.store.kahadb.MessageDatabase.open(MessageDatabase.java:315)
        at 
org.apache.activemq.store.kahadb.MessageDatabase.load(MessageDatabase.java:357)
        at 
org.apache.activemq.store.kahadb.MessageDatabase.doStart(MessageDatabase.java:222)
        at 
org.apache.activemq.store.kahadb.KahaDBStore.doStart(KahaDBStore.java:180)
        at org.apache.activemq.util.ServiceSupport.start(ServiceSupport.java:53)
        at 
org.apache.activemq.store.kahadb.KahaDBPersistenceAdapter.start(KahaDBPersistenceAdapter.java:186)
        at 
org.apache.activemq.broker.BrokerService.start(BrokerService.java:485)
        at org.apache.falcon.Main.startEmbeddedMQIfEnabled(Main.java:118)
        at org.apache.falcon.Main.main(Main.java:77)
{code}

> Falcon Service Check fails after enabling Kerberos, disabling Kerberos, and 
> re-enabling Kerberos
> ------------------------------------------------------------------------------------------------
>
>                 Key: AMBARI-12155
>                 URL: https://issues.apache.org/jira/browse/AMBARI-12155
>             Project: Ambari
>          Issue Type: Bug
>         Environment: ambari-2.1.0-1249, hdp-2.3.0.0-2469 , sles11sp3
>            Reporter: Zack Marsh
>            Priority: Critical
>
> When Kerberos is enabled, disabled, and re-enabled on an HDP-2.3 cluster, the 
> Falcon Service Check is failing during the final "Start and Test All 
> Services" step of the Enable Kerberos Wizard. The Falcon Service Check is 
> also failing consistently after the wizard is complete.
> Error output as seen in Ambari
> stderr:
> {code}
> Traceback (most recent call last):
>   File 
> "/var/lib/ambari-agent/cache/common-services/FALCON/0.5.0.2.1/package/scripts/service_check.py",
>  line 53, in <module>
>     FalconServiceCheck().execute()
>   File 
> "/usr/lib/python2.6/site-packages/resource_management/libraries/script/script.py",
>  line 216, in execute
>     method(env)
>   File 
> "/var/lib/ambari-agent/cache/common-services/FALCON/0.5.0.2.1/package/scripts/service_check.py",
>  line 40, in service_check
>     try_sleep = 20
>   File "/usr/lib/python2.6/site-packages/resource_management/core/base.py", 
> line 157, in __init__
>     self.env.run()
>   File 
> "/usr/lib/python2.6/site-packages/resource_management/core/environment.py", 
> line 152, in run
>     self.run_action(resource, action)
>   File 
> "/usr/lib/python2.6/site-packages/resource_management/core/environment.py", 
> line 118, in run_action
>     provider_action()
>   File 
> "/usr/lib/python2.6/site-packages/resource_management/core/providers/system.py",
>  line 254, 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 
> '/usr/hdp/current/falcon-client/bin/falcon admin -version' returned 255. 
> ERROR: Unable to initialize Falcon Client object
> {code}
> There is also a persistent Warning Alert for the Falcon Service in Ambari:
> {code}
> Falcon Server Web UI
> HTTP 503 response from http://jolokia1.labs.teradata.com:15000 in 0.000s ( % 
> Total % Received % Xferd Average Speed Time Time Time Current Dload Upload 
> Total Spent Left Speed 107 1288 107 1288 0 0 933k 0 --:--:-- --:--:-- 
> --:--:-- 933k 107 1288 107 1288 0 0 244k 0 --:--:-- --:--:-- --:--:-- 0)
> {code}



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