openstack/swift
Code Issues Proposed changes

sharder: refactor _cleave_shard_range

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Move most of the method to a helper so that there is a place that
receives the multiple return points, before finally returning the
result.

Change-Id: I48e18beeb32372a287e8297f0870e8627147141f
This commit is contained in:
Alistair Coles 2022-02-17 14:36:46 +00:00
parent 6609fcd9a1
commit 16a3067746
1 changed files with 24 additions and 17 deletions
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41
swift/container/sharder.py
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@ -1603,24 +1603,10 @@ class ContainerSharder(ContainerSharderConf, ContainerReplicator):
len(created_ranges))
return len(created_ranges)
def _cleave_shard_range(self, broker, cleaving_context, shard_range,
own_shard_range):
self.logger.info("Cleaving '%s' from row %s into %s for %r",
quote(broker.path),
cleaving_context.last_cleave_to_row,
quote(shard_range.name), shard_range)
self._increment_stat('cleaved', 'attempted')
def _cleave_shard_broker(self, broker, cleaving_context, shard_range,
own_shard_range, shard_broker, put_timestamp,
shard_part, node_id):
start = time.time()
policy_index = broker.storage_policy_index
try:
shard_part, shard_broker, node_id, put_timestamp = \
self._get_shard_broker(shard_range, broker.root_path,
policy_index)
except DeviceUnavailable as duex:
self.logger.warning(str(duex))
self._increment_stat('cleaved', 'failure', statsd=True)
return CLEAVE_FAILED
# only cleave from the retiring db - misplaced objects handler will
# deal with any objects in the fresh db
source_broker = broker.get_brokers()[0]
@ -1737,6 +1723,27 @@ class ContainerSharder(ContainerSharderConf, ContainerReplicator):
self._increment_stat('cleaved', 'success', statsd=True)
return CLEAVE_SUCCESS
def _cleave_shard_range(self, broker, cleaving_context, shard_range,
own_shard_range):
self.logger.info("Cleaving '%s' from row %s into %s for %r",
quote(broker.path),
cleaving_context.last_cleave_to_row,
quote(shard_range.name), shard_range)
self._increment_stat('cleaved', 'attempted')
policy_index = broker.storage_policy_index
try:
shard_part, shard_broker, node_id, put_timestamp = \
self._get_shard_broker(shard_range, broker.root_path,
policy_index)
except DeviceUnavailable as duex:
self.logger.warning(str(duex))
self._increment_stat('cleaved', 'failure', statsd=True)
return CLEAVE_FAILED
else:
return self._cleave_shard_broker(
broker, cleaving_context, shard_range, own_shard_range,
shard_broker, put_timestamp, shard_part, node_id)
def _cleave(self, broker):
# Returns True if misplaced objects have been moved and the entire
# container namespace has been successfully cleaved, False otherwise