Ceph » Stable releases

Steps¶

• For a given job, there is a pulpito page (for instance http://pulpito.ceph.com/loic-2015-05-13_00:58:29-rados-firefly-backports---basic-multi/888125/)
• Research tracker.ceph.com for the error string to find existing issues. For instance http://pulpito.ceph.com/loic-2015-05-13_00:58:29-rados-firefly-backports---basic-multi/888125/ has a few issues associated with it+
  ceph-objectstore-tool: import failure with status 139 which
• Click All details... to show the YAML file and Control-f description to see the job description which is the list of YAML files that were used to create the job. They can be found at https://github.com/ceph/ceph-qa-suite/blob/firefly/suites (where firefly can be replaced by the stable release name).
• Download the teuthology logs from the link provided by the pulpito page (for instance http://qa-proxy.ceph.com/teuthology/loic-2015-05-13_00:58:29-rados-firefly-backports---basic-multi/888125/teuthology.log)
• Explore the logs and core dumps collected by teuthology. If the log is at http://qa-proxy.ceph.com/teuthology/loic-2015-05-13_00:58:29-rados-firefly-backports---basic-multi/888125/teuthology.log the rest can be found by removing the teuthology.log part of the path, i.e. http://qa-proxy.ceph.com/teuthology/loic-2015-05-13_00:58:29-rados-firefly-backports---basic-multi/888125/
• In the teuthology log, look for the first Traceback and look around it: this is when something went wrong first.
  

  2015-05-15T03:56:10.905 ERROR:teuthology.contextutil:Saw exception from nested tasks
  Traceback (most recent call last):
    File "/home/teuthworker/src/teuthology_master/teuthology/contextutil.py", line 30, in nested
      yield vars
    File "/home/teuthworker/src/teuthology_master/teuthology/task/install.py", line 1298, in task
      yield
    File "/home/teuthworker/src/teuthology_master/teuthology/run_tasks.py", line 125, in run_tasks
      suppress = manager.__exit__(*exc_info)
    File "/usr/lib/python2.7/contextlib.py", line 24, in __exit__
      self.gen.next()
    File "/var/lib/teuthworker/src/ceph-qa-suite_firefly/tasks/thrashosds.py", line 183, in task
      thrash_proc.do_join()
    File "/var/lib/teuthworker/src/ceph-qa-suite_firefly/tasks/ceph_manager.py", line 356, in do_join
      self.thread.get()
    File "/usr/lib/python2.7/dist-packages/gevent/greenlet.py", line 308, in get
      raise self._exception
  Exception: ceph-objectstore-tool: import failure with status 139
  

• Examine the relevant OSD, MDS or MON logs
• Obtain a backtrace from the coredumps (see http://dachary.org/?p=3568 for a way to do that), if they are not in the OSD, MDS or MON logs (they usually are)

Tools¶

• https://github.com/jcsp/scrape/blob/master/scrape.py
  • command line example:
    

    user@machine:~$ python ~/<scrape_dir>/scrape.py /a/<run_name>
    

    • this will generally run in all labs (sepia, octo, typica) as /a exits in all of them