[AMBARI-20980] RU: RESTART SPARK2/SPARK2_CLIENT failed

• Type: Bug
• Status: Resolved
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: 2.5.1
• Fix Version/s: 2.5.1
• Component/s: ambari-server
• Assignee: Dmitry Lysnichenko
• Reporter: Dmitry Lysnichenko
• Created: 10/May/17 14:15
• Updated: 11/May/17 15:19
• Resolved: 11/May/17 14:33

Description

STR:

1. Deploy HDP 2.5.3.0-37 on Ambari 2.4.2.0
2. Enable NN HA
3. Upgrade ambari to 2.5.1.0-95
4. Register and install HDP 2.6.1.0-56
5. Perform RU to Finalize
6. Perform Downgrade
   Result: RESTART SPARK2/SPARK2_CLIENT failed during Downgrade

std.err

Traceback (most recent call last):
File "/var/lib/ambari-agent/cache/common-services/SPARK2/2.0.0/package/scripts/spark_client.py", line 60, in <module>
SparkClient().execute()
File "/usr/lib/python2.6/site-packages/resource_management/libraries/script/script.py", line 315, in execute
method(env)
File "/usr/lib/python2.6/site-packages/resource_management/libraries/script/script.py", line 783, in restart
self.pre_upgrade_restart(env, upgrade_type=upgrade_type)
File "/var/lib/ambari-agent/cache/common-services/SPARK2/2.0.0/package/scripts/spark_client.py", line 51, in pre_upgrade_restart
import params
File "/var/lib/ambari-agent/cache/common-services/SPARK2/2.0.0/package/scripts/params.py", line 209, in <module>
livy2_pid_dir = status_params.livy2_pid_dir
AttributeError: 'module' object has no attribute 'livy2_pid_dir'

it was caused by AMBARI-19248 which assumes that livy2_pid_dir is present even if livy2 is not installed.

Issue Links

• links to: review_request_