Dmitry Lysnichenko created AMBARI-17816:
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Summary: Rebalance HDFS failed with "float division by zero"
Key: AMBARI-17816
URL: https://issues.apache.org/jira/browse/AMBARI-17816
Project: Ambari
Issue Type: Bug
Reporter: Dmitry Lysnichenko
Assignee: Dmitry Lysnichenko
Attachments: AMBARI-17816.patch
Rebalancing HDFS is failing with stderr :
{code}
Traceback (most recent call last):\n File
\"/var/lib/ambari-agent/cache/common-services/HDFS/2.1.0.2.0/package/scripts/namenode.py\",
line 414, in <module>\n NameNode().execute()\n File
\"/usr/lib/python2.6/site-packages/resource_management/libraries/script/script.py\",
line 280, in execute\n method(env)\n File
\"/var/lib/ambari-agent/cache/common-services/HDFS/2.1.0.2.0/package/scripts/namenode.py\",
line 342, in rebalancehdfs\n logoutput = False,\n File
\"/usr/lib/python2.6/site-packages/resource_management/core/base.py\", line
155, in __init__\n self.env.run()\n File
\"/usr/lib/python2.6/site-packages/resource_management/core/environment.py\",
line 160, in run\n self.run_action(resource, action)\n File
\"/usr/lib/python2.6/site-packages/resource_management/core/environment.py\",
line 124, in run_action\n provider_action()\n File
\"/usr/lib/python2.6/site-packages/resource_management/core/providers/system.py\",
line 273, in action_run\n tries=self.resource.tries,
try_sleep=self.resource.try_sleep)\n File
\"/usr/lib/python2.6/site-packages/resource_management/core/shell.py\", line
71, in inner\n result = function(command, **kwargs)\n File
\"/usr/lib/python2.6/site-packages/resource_management/core/shell.py\", line
93, in checked_call\n tries=tries, try_sleep=try_sleep)\n File
\"/usr/lib/python2.6/site-packages/resource_management/core/shell.py\", line
141, in _call_wrapper\n result = _call(command, **kwargs_copy)\n File
\"/usr/lib/python2.6/site-packages/resource_management/core/shell.py\", line
265, in _call\n raise
Fail(err_msg)\nresource_management.core.exceptions.Fail: Caused by on_new_line
function failed with exception for input argument ' 0
0 B 0 B 0 B':\nTraceback (most recent call
last):\n File
\"/usr/lib/python2.6/site-packages/resource_management/core/shell.py\", line
262, in _call\n on_new_line(line, out_fd == proc.stderr)\n File
\"/var/lib/ambari-agent/cache/common-services/HDFS/2.1.0.2.0/package/scripts/namenode.py\",
line 332, in handle_new_line\n res['completePercent'] =
calculateCompletePercent(parser.initialLine, pl)\n File
\"/var/lib/ambari-agent/cache/common-services/HDFS/2.1.0.2.0/package/scripts/namenode.py\",
line 306, in calculateCompletePercent\n return 1.0 -
current.bytesLeftToMove/first.bytesLeftToMove\nZeroDivisionError: float
division by zero
{code}
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