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From "Andrew Onischuk (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (AMBARI-17550) While changing NN, DN directories from UI, proper warning should be present for invalid values
Date Mon, 04 Jul 2016 13:11:10 GMT

     [ https://issues.apache.org/jira/browse/AMBARI-17550?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Andrew Onischuk updated AMBARI-17550:
-------------------------------------
    Status: Patch Available  (was: Open)

> While changing NN, DN directories from UI, proper warning should be present for invalid
values
> ----------------------------------------------------------------------------------------------
>
>                 Key: AMBARI-17550
>                 URL: https://issues.apache.org/jira/browse/AMBARI-17550
>             Project: Ambari
>          Issue Type: Bug
>            Reporter: Andrew Onischuk
>            Assignee: Andrew Onischuk
>             Fix For: 2.4.0
>
>         Attachments: AMBARI-17550.patch
>
>
> While changing NN and DN directories from ambari, for example:  
> changing dn directories from **/grid/0/hadoop/hdfs/data** to **/grid/0/hadoop/
> hdfs/data,/grid/0/hadoop/hdfs/data1,/grid/0/hadoop/hdfs/data2**
> The values are changed without being validated  
> This leads to datanodes start failing
>     
>     
>     
>     Traceback (most recent call last):
>       File "/var/lib/ambari-agent/cache/common-services/HDFS/2.1.0.2.0/package/scripts/datanode.py",
line 174, in <module>
>         DataNode().execute()
>       File "/usr/lib/python2.6/site-packages/resource_management/libraries/script/script.py",
line 280, in execute
>         method(env)
>       File "/usr/lib/python2.6/site-packages/resource_management/libraries/script/script.py",
line 709, in restart
>         self.start(env, upgrade_type=upgrade_type)
>       File "/var/lib/ambari-agent/cache/common-services/HDFS/2.1.0.2.0/package/scripts/datanode.py",
line 60, in start
>         self.configure(env)
>       File "/var/lib/ambari-agent/cache/common-services/HDFS/2.1.0.2.0/package/scripts/datanode.py",
line 55, in configure
>         datanode(action="configure")
>       File "/usr/lib/python2.6/site-packages/ambari_commons/os_family_impl.py", line
89, in thunk
>         return fn(*args, **kwargs)
>       File "/var/lib/ambari-agent/cache/common-services/HDFS/2.1.0.2.0/package/scripts/hdfs_datanode.py",
line 53, in datanode
>         data_dir_to_mount_file_content = handle_mounted_dirs(create_dirs, params.dfs_data_dirs,
params.data_dir_mount_file, params)
>       File "/usr/lib/python2.6/site-packages/resource_management/libraries/functions/mounted_dirs_helper.py",
line 158, in handle_mounted_dirs
>         raise Fail(message + " . Please turn off cluster-env/one_dir_per_partition or
handle the situation manually.")
>     resource_management.core.exceptions.Fail: Trying to create another directory on the
following mount: /grid/0 . Please turn off cluster-env/one_dir_per_partition or handle the
situation manually.
>     
> The test fails because it set invalid value, and the directory was not created  
> A warning message informing why the new directory name is invalid could be
> useful



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