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https://issues.apache.org/jira/browse/AMBARI-23369?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Vivek Sharma resolved AMBARI-23369.
-----------------------------------
Resolution: Fixed
> Livy server fails to start after Ambari upgrade due to missing argument for
> nameservice
> ---------------------------------------------------------------------------------------
>
> Key: AMBARI-23369
> URL: https://issues.apache.org/jira/browse/AMBARI-23369
> Project: Ambari
> Issue Type: Bug
> Components: ambari-server
> Affects Versions: 2.7.0
> Reporter: Vivek Sharma
> Assignee: Vivek Sharma
> Priority: Critical
> Labels: pull-request-available
> Fix For: 2.7.0
>
> Time Spent: 40m
> Remaining Estimate: 0h
>
> *STR*
> # Deployed a cluster with HDP-2.6.4 and Ambari-2.6.1
> # Upgrade Ambari to 2.7.0.0-202
> # Try to start Spark service
> *Result*
> Spark livy server start fails with:
> {code:java}
> Traceback (most recent call last):
> File
> "/var/lib/ambari-agent/cache/common-services/SPARK2/2.0.0/package/scripts/livy2_server.py",
> line 144, in
> LivyServer().execute()
> File
> "/usr/lib/ambari-agent/lib/resource_management/libraries/script/script.py",
> line 353, in execute
> method(env)
> File
> "/var/lib/ambari-agent/cache/common-services/SPARK2/2.0.0/package/scripts/livy2_server.py",
> line 59, in start
> self.wait_for_dfs_directories_created([params.entity_groupfs_store_dir,
> params.entity_groupfs_active_dir])
> File
> "/var/lib/ambari-agent/cache/common-services/SPARK2/2.0.0/package/scripts/livy2_server.py",
> line 91, in wait_for_dfs_directories_created
> self.wait_for_dfs_directory_created(dir_path, ignored_dfs_dirs)
> File
> "/usr/lib/ambari-agent/lib/resource_management/libraries/functions/decorator.py",
> line 54, in wrapper
> return function(*args, **kwargs)
> File
> "/var/lib/ambari-agent/cache/common-services/SPARK2/2.0.0/package/scripts/livy2_server.py",
> line 115, in wait_for_dfs_directory_created
> util = WebHDFSUtil(params.hdfs_site, params.hdfs_user,
> params.security_enabled)
> TypeError: __init__() takes at least 5 arguments (4 given)
> {code}
>
> The issue is because a new 'nameservice' argument is added to WebHDFSUtil
> constructor
> The problem needs a fix in both livy_server and livy2_server scripts, as the
> below call is common in these two scripts
> {code:java}
> util = WebHDFSUtil(params.hdfs_site, params.hdfs_user,
> params.security_enabled){code}
>
>
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