[jira] [Created] (AMBARI-21038) Rebalance HDFS button on Hosts page doesn't work

["Masahiro Tanaka (JIRA)" <ji...@apache.org>]

Masahiro Tanaka created AMBARI-21038:
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             Summary: Rebalance HDFS button on Hosts page doesn't work
                 Key: AMBARI-21038
                 URL: https://issues.apache.org/jira/browse/AMBARI-21038
             Project: Ambari
          Issue Type: Bug
          Components: ambari-server, ambari-web
    Affects Versions: 2.5.0, 2.4.2
         Environment: Ambari 2.4 on CentOS6.8
Ambari 2.5 on CentOS7.2
            Reporter: Masahiro Tanaka


When I tried to rebalance HDFS with Ambari, I pushed "Rebalance HDFS" in the pulldown menu on each Hosts page.

I expected it worked same as I pushed "Rebalance HDFS" on Service Page, though it doesn't work.

The error log is as below:
{{{
Traceback (most recent call last):
  File "/var/lib/ambari-agent/cache/common-services/HDFS/2.1.0.2.0/package/scripts/namenode.py", line 420, in <module>
    NameNode().execute()
  File "/usr/lib/python2.6/site-packages/resource_management/libraries/script/script.py", line 280, in execute
    method(env)
  File "/var/lib/ambari-agent/cache/common-services/HDFS/2.1.0.2.0/package/scripts/namenode.py", line 282, in rebalancehdfs
    name_node_parameters = json.loads( params.name_node_params )
  File "/usr/lib/python2.6/site-packages/ambari_simplejson/__init__.py", line 307, in loads
    return _default_decoder.decode(s)
  File "/usr/lib/python2.6/site-packages/ambari_simplejson/decoder.py", line 335, in decode
    obj, end = self.raw_decode(s, idx=_w(s, 0).end())
TypeError: expected string or buffer
}}}



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