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ISSUE : In Ambari 2.4.x, Falcon Web UI is inaccessible(HTTP 503 error) and Ambari Service Check for Falcon fails: "ERROR: Unable to initialize Falcon Client object"

Snippet of error from falcon logs

2017-01-04 14:08:56,390 INFO - [main:] ~ Initializing graph db (MetadataMappingService:143) 
2017-01-04 14:08:56,438 ERROR - [main:] ~ Failed startup of context org.mortbay.jetty.webapp.WebAppContext@96a75da{/,/usr/hdp/current/falcon-server/server/webapp/falcon} (log:87) 
Caused by: org.apache.falcon.FalconException: java.lang.RuntimeException: GraphFactory could not instantiate this Graph implementation [com.thinkaurelius.titan.core.TitanFactory]. 
Caused by: java.lang.RuntimeException: GraphFactory could not instantiate this Graph implementation [com.thinkaurelius.titan.core.TitanFactory]. 
Caused by: java.lang.reflect.InvocationTargetException 
Caused by: java.lang.NoClassDefFoundError: com/sleepycat/je/LockMode 
Caused by: java.lang.ClassNotFoundException: 
2017-01-04 14:08:56,440 INFO - [main:] ~ Started SocketConnector@ (log:67) 

ROOT CAUSE : Missing jar


On the falcon server, download missing jar and save it under falcon lib location

wget -O /usr/hdp/current/falcon-server/server/webapp/falcon/WEB-INF/lib/je-5.0.73.jar

chown falcon:hadoop /usr/hdp/current/falcon-server/server/webapp/falcon/WEB-INF/lib/je-5.0.73.jar

Restart Falcon server from Ambari. Hortonworks cannot ship this jar. It has to be manually downloaded.


Thanks I had same issue with HDP 2.6 upgrade. I was able to fix it after following the instructions.

thanks for the resolution. this resolved the falcon issue after upgrading to HDP- .

I just ran into the same issue in HDP 2.6.0 whose Ambari.repo content is:

#VERSION_NUMBER= [ambari-] name=ambari Version - ambari- baseurl= gpgcheck=1 gpgkey= enabled=1 priority=1

The work-around posted here fixed my issue.

Awesome. I faced this same problem in HDP 2.5, I was able to resolve it using the instructions mentioned in this post!

This works absolutely fine. Thanks for workaround.

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Last update:
‎01-05-2017 05:14 PM
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