Ceph

Traceback (most recent call last):
  File "/home/teuthworker/src/git.ceph.com_git_teuthology_master/teuthology/contextutil.py", line 32, in nested
    yield vars
  File "/home/teuthworker/src/github.com_ceph_ceph_master/qa/tasks/ceph.py", line 1630, in task
    osd_scrub_pgs(ctx, config)
  File "/home/teuthworker/src/github.com_ceph_ceph_master/qa/tasks/ceph.py", line 1031, in osd_scrub_pgs
    stats = manager.get_pg_stats()
  File "/home/teuthworker/src/github.com_ceph_ceph_master/qa/tasks/ceph_manager.py", line 1781, in get_pg_stats
    out = self.raw_cluster_cmd('pg', 'dump', '--format=json')
  File "/home/teuthworker/src/github.com_ceph_ceph_master/qa/tasks/ceph_manager.py", line 1138, in raw_cluster_cmd
    stdout=StringIO(),
  File "/home/teuthworker/src/git.ceph.com_git_teuthology_master/teuthology/orchestra/remote.py", line 193, in run
    r = self._runner(client=self.ssh, name=self.shortname, **kwargs)
  File "/home/teuthworker/src/git.ceph.com_git_teuthology_master/teuthology/orchestra/run.py", line 414, in run
    r.wait()
  File "/home/teuthworker/src/git.ceph.com_git_teuthology_master/teuthology/orchestra/run.py", line 149, in wait
    self._raise_for_status()
  File "/home/teuthworker/src/git.ceph.com_git_teuthology_master/teuthology/orchestra/run.py", line 171, in _raise_for_status
    node=self.hostname, label=self.label
CommandFailedError: Command failed on smithi055 with status 124: 'sudo adjust-ulimits ceph-coverage /home/ubuntu/cephtest/archive/coverage timeout 120 ceph --cluster ceph pg dump --format=json'

/ceph/teuthology-archive/pdonnell-2017-07-18_16:08:43-multimds-master-testing-basic-smithi/1412747/teuthology.log

Looks like `ceph pg dump` is stuck waiting for something but a quick glance at the logs didn't reveal what.