Ceph

2017-04-07T22:48:53.305 ERROR:teuthology.run_tasks:Saw exception from tasks.
Traceback (most recent call last):
  File "/home/teuthworker/src/git.ceph.com_git_teuthology_master/teuthology/run_tasks.py", line 86, in run_tasks
    manager = run_one_task(taskname, ctx=ctx, config=config)
  File "/home/teuthworker/src/git.ceph.com_git_teuthology_master/teuthology/run_tasks.py", line 65, in run_one_task
    return task(**kwargs)
  File "/home/teuthworker/src/github.com_ceph_ceph-c_wip-sage-testing2/qa/tasks/reg11184.py", line 67, in task
    divergent = manager.get_pg_primary('foo', 0)
  File "/home/teuthworker/src/github.com_ceph_ceph-c_wip-sage-testing2/qa/tasks/ceph_manager.py", line 1318, in get_pg_primary
    assert False
AssertionError

/a/sage-2017-04-07_19:56:10-rados-wip-sage-testing2---basic-smithi/997670

it creates pool foo (poolid 1), then does get_primary, which does a pg dump (no 1.x pgs yet on the mgr) and osd dump (to translate foo -> 1), then fails teh assertion because it didn't see the pg in pg dump.

i think we need a general method to wait for mgr to see new pgs?