Tooz provides distributed locks. A lock is identified by a name, and a lock can only be acquired by one coordinator at a time.
# Copyright (C) 2020 Red Hat, Inc. # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or # implied. # See the License for the specific language governing permissions and # limitations under the License. from tooz import coordination coordinator = coordination.get_coordinator('zake://', b'host-1') coordinator.start() # Create a lock lock = coordinator.get_lock("foobar") with lock: print("Do something that is distributed") coordinator.stop()
to create a lock identified by a name. Once you retrieve this lock, you can
use it as a context manager or use the
tooz.locking.Lock.release() methods to acquire and release the lock.