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From "Vitaly Brodetskyi (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (AMBARI-21504) Restart of MR2 History Server failed due to null in immutable_paths
Date Mon, 17 Jul 2017 20:13:00 GMT

     [ https://issues.apache.org/jira/browse/AMBARI-21504?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Vitaly Brodetskyi updated AMBARI-21504:
---------------------------------------
    Status: Patch Available  (was: Open)

> Restart of MR2 History Server failed due to null in immutable_paths
> -------------------------------------------------------------------
>
>                 Key: AMBARI-21504
>                 URL: https://issues.apache.org/jira/browse/AMBARI-21504
>             Project: Ambari
>          Issue Type: Bug
>          Components: ambari-server
>    Affects Versions: 2.5.2
>            Reporter: Vitaly Brodetskyi
>            Assignee: Vitaly Brodetskyi
>            Priority: Blocker
>             Fix For: 2.5.2
>
>         Attachments: AMBARI-21504.patch
>
>
> Steps:
> * Installed Ambari 2.2 with Slider and services it required
> * Upgraded Ambari to 2.5.2.0-134
> * Registered HDP 2.6.1.0 repo, installed packages
> * Restarted services that needed restart
> * Ran service checks
> * Started upgrade
> Result: _Restarting History Server_ step failed with 
> {noformat:title=errors-91.txt}
> Traceback (most recent call last):
>   File "/var/lib/ambari-agent/cache/common-services/YARN/2.1.0.2.0/package/scripts/historyserver.py",
line 134, in <module>
>     HistoryServer().execute()
>   File "/usr/lib/python2.6/site-packages/resource_management/libraries/script/script.py",
line 329, in execute
>     method(env)
>   File "/usr/lib/python2.6/site-packages/resource_management/libraries/script/script.py",
line 841, in restart
>     self.pre_upgrade_restart(env, upgrade_type=upgrade_type)
>   File "/var/lib/ambari-agent/cache/common-services/YARN/2.1.0.2.0/package/scripts/historyserver.py",
line 85, in pre_upgrade_restart
>     copy_to_hdfs("mapreduce", params.user_group, params.hdfs_user, skip=params.sysprep_skip_copy_tarballs_hdfs)
>   File "/usr/lib/python2.6/site-packages/resource_management/libraries/functions/copy_tarball.py",
line 256, in copy_to_hdfs
>     mode=0555
>   File "/usr/lib/python2.6/site-packages/resource_management/core/base.py", line 155,
in __init__
>     self.env.run()
>   File "/usr/lib/python2.6/site-packages/resource_management/core/environment.py", line
160, in run
>     self.run_action(resource, action)
>   File "/usr/lib/python2.6/site-packages/resource_management/core/environment.py", line
124, in run_action
>     provider_action()
>   File "/usr/lib/python2.6/site-packages/resource_management/libraries/providers/hdfs_resource.py",
line 560, in action_create_on_execute
>     self.action_delayed("create")
>   File "/usr/lib/python2.6/site-packages/resource_management/libraries/providers/hdfs_resource.py",
line 550, in action_delayed
>     parsed_not_managed_paths = [HdfsResourceProvider.parse_path(path) for path in self.resource.immutable_paths]
>   File "/usr/lib/python2.6/site-packages/resource_management/libraries/providers/hdfs_resource.py",
line 519, in parse_path
>     math_with_protocol_and_nn_url = re.match("[a-zA-Z]+://[^/]+(/.+)", path)
>   File "/usr/lib64/python2.7/re.py", line 137, in match
>     return _compile(pattern, flags).match(string)
> TypeError: expected string or buffer
> {noformat}
> {noformat:title=command-91.json}
> "hostLevelParams": {
> ...
> "not_managed_hdfs_path_list": "[null,\"/mr-history/done\",\"/app-logs\"]",
> ...
> }
> {noformat}
> Failure seems to be due to {{null}} value in the list.



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