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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/41273/
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(Updated Dec. 13, 2015, 10:58 p.m.)
Review request for Ambari, Dmytro Grinenko, Dmitro Lisnichenko, Jonathan
Hurley, Jayush Luniya, and Nate Cole.
Bugs: AMBARI-14307
https://issues.apache.org/jira/browse/AMBARI-14307
Repository: ambari
Description (updated)
-------
* Ambari 2.2 at hash for AMBARI-14237 (e15d1e0fb3777f79cb473cf5de0f7a6bf30e63bd)
* HDP 2.2.8.0 with HDFS, YARN/MR, ZK, Kafka (this host does not contain any
hadoop components)
* RU from to 2.3.4.0 and reach the Finalize screen.
* Then downgrade,
Kafka broker restart failed on downgrade
```
Traceback (most recent call last):
File
\"/var/lib/ambari-agent/cache/stacks/HDP/2.0.6/hooks/before-START/scripts/hook.py\",
line 39, in <module>
BeforeStartHook().execute()
File
\"/usr/lib/python2.6/site-packages/resource_management/libraries/script/script.py\",
line 217, in execute
method(env)
File
\"/var/lib/ambari-agent/cache/stacks/HDP/2.0.6/hooks/before-START/scripts/hook.py\",
line 36, in hook
create_topology_script_and_mapping()
File
\"/var/lib/ambari-agent/cache/stacks/HDP/2.0.6/hooks/before-START/scripts/rack_awareness.py\",
line 69, in create_topology_script_and_mapping
create_topology_mapping()
File
\"/var/lib/ambari-agent/cache/stacks/HDP/2.0.6/hooks/before-START/scripts/rack_awareness.py\",
line 36, in create_topology_mapping
group=params.user_group)
File \"/usr/lib/python2.6/site-packages/resource_management/core/base.py\",
line 154, in __init__
self.env.run()
File
\"/usr/lib/python2.6/site-packages/resource_management/core/environment.py\",
line 158, in run
self.run_action(resource, action)
File
\"/usr/lib/python2.6/site-packages/resource_management/core/environment.py\",
line 121, in run_action
provider_action()
File
\"/usr/lib/python2.6/site-packages/resource_management/core/providers/system.py\",
line 144, in action_create
raise Fail(\"Applying %s failed, looped symbolic links found while
resolving %s\" % (self.resource, path))
resource_management.core.exceptions.Fail: Applying
Directory['/etc/hadoop/conf'] failed, looped symbolic links found while
resolving /etc/hadoop/conf
Error: Error: Unable to run the custom hook script ['/usr/bin/python2',
'/var/lib/ambari-agent/cache/stacks/HDP/2.0.6/hooks/before-START/scripts/hook.py',
'START', '/var/lib/ambari-agent/data/command-2873.json',
'/var/lib/ambari-agent/cache/stacks/HDP/2.0.6/hooks/before-START',
'/var/lib/ambari-agent/data/structured-out-2873.json', 'INFO',
'/var/lib/ambari-agent/tmp']
```
This failed because /etc/hadoop/conf is now a circular symlink
Diffs
-----
ambari-common/src/main/python/resource_management/libraries/functions/conf_select.py
7fd64b5
ambari-common/src/main/python/resource_management/libraries/script/script.py
398cee8
ambari-server/src/main/resources/common-services/KAFKA/0.8.1.2.2/package/scripts/kafka_broker.py
6fcf08a
ambari-server/src/main/resources/custom_actions/scripts/install_packages.py
85d0d25
ambari-server/src/main/resources/custom_actions/scripts/ru_set_all.py f8b38db
Diff: https://reviews.apache.org/r/41273/diff/
Testing (updated)
-------
Tested on the following code paths,
1. Fresh install of HDP 2.1
2. Installed bits for HDP 2.3 and verified the conf folder structure
3. EU to HDP 2.3
4. Installed HDFS client on the host that didn't have /etc/hadoop/conf and then
it symlinked it to /usr/hdp/current/hadoop-client/conf
1. Fresh install of HDP 2.2
2. Installed bits for HDP 2.3 and verfied the conf folder structure
3. RU to HDP 2.3 and downgrade
Still need to fix unit tests.
Thanks,
Alejandro Fernandez
