start error

[blueghost1983]

after install ambari-zepplin, when I start the service, it popups following error:

Traceback (most recent call last):
File "/var/lib/ambari-agent/cache/stacks/HDP/2.3/services/ZEPPELIN/package/scripts/master.py", line 279, in
Master().execute()
File "/usr/lib/python2.6/site-packages/resource_management/libraries/script/script.py", line 219, in execute
method(env)
File "/var/lib/ambari-agent/cache/stacks/HDP/2.3/services/ZEPPELIN/package/scripts/master.py", line 252, in start
pidfile=glob.glob(status_params.zeppelin_pid_dir + '/zeppelin-'+params.zeppelin_user+'*.pid')[0]
IndexError: list index out of range

It seems the master.py is not correct, when I change the pidfile=glob.glob(status_params.zeppelin_pid_dir + '/zeppelin-'+params.zeppelin_user+'.pid')[0] to pidfile=glob.glob(status_params.zeppelin_pid_dir + '/zeppelin-'+status_params.zeppelin_user+'.pid')[0], the zeppelin started successfully in Ambari