ceph/qa/tasks/mds_pre_upgrade.py

   1 """
   2 Prepare MDS cluster for upgrade.
   3 """
   4
   5 import logging
   6
   7 from tasks.cephfs.filesystem import Filesystem
   8
   9 log = logging.getLogger(__name__)
  10
  11 def task(ctx, config):
  12     """
  13     Prepare MDS cluster for upgrade.
  14
  15     This task reduces ranks to 1 and stops all standbys.
  16     """
  17
  18     if config is None:
  19         config = {}
  20     assert isinstance(config, dict), \
  21         'snap-upgrade task only accepts a dict for configuration'
  22
  23     fs = Filesystem(ctx)
  24     fs.getinfo() # load name
  25     fs.set_allow_standby_replay(False)
  26     fs.set_max_mds(1)
  27     fs.reach_max_mds()