Comment 0 for bug 1300248

Now integration tests execute command sudo -u hadoop bash -lc "hadoop dfsadmin -report | grep "Datanodes available:.*" | awk '{print $3}'" to check how many data nodes are active.

This command does not work with any Vanilla2 images created with elements from sahara-image-elements repo.

Trace of tests is
======================================================================
FAIL: tests.gating.test_vanilla_two_gating.VanillaTwoGatingTest.test_vanilla_two_plugin_gating[vanilla2]
tags: worker-0
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/home/skolekonov/sahara/sahara/tests/integration/tests/gating/test_vanilla_two_gating.py", line 227, in test_vanilla_two_plugin_gating
    self._create_cluster()
  File "sahara/tests/integration/tests/base.py", line 46, in wrapper
    ITestCase.print_error_log(message, e)
  File "sahara/openstack/common/excutils.py", line 68, in __exit__
    six.reraise(self.type_, self.value, self.tb)
  File "sahara/tests/integration/tests/base.py", line 43, in wrapper
    fct(*args, **kwargs)
  File "/home/skolekonov/sahara/sahara/tests/integration/tests/gating/test_vanilla_two_gating.py", line 157, in _create_cluster
    self.vanilla_two_config)
  File "sahara/tests/integration/tests/base.py", line 338, in await_active_workers_for_namenode
    % self.common_config.HDFS_INITIALIZATION_TIMEOUT
  File "/home/skolekonov/sahara/.tox/integration/local/lib/python2.7/site-packages/unittest2/case.py", line 415, in fail
    raise self.failureException(msg)
AssertionError: Tasktracker or datanode cannot be started within 5 minute(s) for namenode.

A possible solution is to use the following command sudo -u hadoop bash -lc "hadoop dfsadmin -report" | grep "Datanodes available:.*" | awk '{print $3}'.