Nahappan Somasundaram created AMBARI-13019:
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Summary: Empty package folders on ambari-server causes
corresponding component restart to fail
Key: AMBARI-13019
URL: https://issues.apache.org/jira/browse/AMBARI-13019
Project: Ambari
Issue Type: Bug
Components: ambari-server
Affects Versions: 2.2.0
Reporter: Nahappan Somasundaram
Assignee: Nahappan Somasundaram
Fix For: 2.2.0
When the agent executes a command say status/start/stop command, ambari-server
provides the service_package_folder to use as a parameter
Repro Steps:
1. mkdir /var/lib/ambari-server/resouces/stacks/HDP/2.2/services/HDFS/package
2. ambari-server restart
3. Notice HDFS components report Heartbeat Lost and Restart HDFS fail.
4. This is because the sservice_package_folder is set to the empty folder.
ERROR 2015-08-28 20:35:59,383 CustomServiceOrchestrator.py:218 - Caught an
exception while executing custom service command: <class
'ambari_agent.AgentException.AgentException'>: 'Script
/var/lib/ambari-agent/cache/stacks/HDP/2.2/services/HDFS/package/scripts/namenode.py
does not exist'; 'Script
/var/lib/ambari-agent/cache/stacks/HDP/2.2/services/HDFS/package/scripts/namenode.py
does not exist'
Traceback (most recent call last):
File
"/usr/lib/python2.6/site-packages/ambari_agent/CustomServiceOrchestrator.py",
line 151, in runCommand
script_path = self.resolve_script_path(base_dir, script)
File
"/usr/lib/python2.6/site-packages/ambari_agent/CustomServiceOrchestrator.py",
line 288, in resolve_script_path
raise AgentException(message)
So even if we disable the stack from replicating an empty folder, the
ambari-server would still pass the path as empty folder.
We should also look at ignoring empty package folders while building the Stack
Inheritance in Ambari Server
Refer code in: ambari/ambari-server/src/main/java/org/apache/ambari/server/stack
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