def _crushmap_item_create(self,
items,
name,
ancestor_name=None,
ancestor_type=None,
depth=0):
"""Create crush map entry. """
# This is a recursive method. Add a safeguard to prevent infinite
# recursion.
if depth > constants.CEPH_CRUSH_MAP_DEPTH:
raise exception.CephCrushMaxRecursion(depth=depth)
root_name = self._format_root_name(name)
for i in items:
bucket_name = (root_name if i['type'] == 'root' else '%s-%s' %
(i['name'], name))
if i['type'] != 'osd':
LOG.error("bucket_name = %s, depth = %d" %
(bucket_name, depth))
self._crush_bucket_add(bucket_name, i['type'])
if 'items' in i:
self._crushmap_item_create(i['items'],
name,
ancestor_name=bucket_name,
ancestor_type=i['type'],
depth=depth + 1)
if ancestor_type:
if i['type'] != 'osd':
self._crush_bucket_move(bucket_name, ancestor_type,
ancestor_name)
def _crushmap_item_delete(self, items, name, ancestor_name=None,
ancestor_type=None, depth=0, rollback=False):
"""Delete a crush map entry. """
# This is a recursive method. Add a safeguard to to prevent infinite
# recursion.
if depth > constants.CEPH_CRUSH_MAP_DEPTH:
return depth
root_name = self._format_root_name(name)
ret_code = 0
for i in items:
if rollback:
bucket_name = (root_name
if i['type'] == 'root'
else '%s-%s' % (i['name'], name))
else:
bucket_name = root_name if i['type'] == 'root' else i['name']
if 'items' in i:
ret_code = self._crushmap_item_delete(i['items'], name,
ancestor_name=bucket_name,
ancestor_type=i['type'],
depth=depth + 1,
rollback=rollback)
LOG.error("bucket_name = %s, depth = %d, ret_code = %s" % (
bucket_name, depth, ret_code))
self._crush_bucket_remove(bucket_name)
if ret_code != 0 and depth == 0:
raise exception.CephCrushMaxRecursion(depth=ret_code)
return (ret_code if ret_code else 0)