CHANGES

• Remove Windows support

• Add note about requirements lower bounds

• Run pyupgrade to clean up Python 2 syntaxes

• Remove Python 3.8 support

• Fix outdated tox minversion

• Bump python versions used in tests

• Use oslo.utils implementation to compare versions

• Use oslo.utils implementation to parse sentinel address

• Fix wrong usage of ‘wraps’

• zookeeper: fix argparse related to ssl

• mysql: Use oslo_utils implementation to parse boolean

6.3.0

• Replace use of testtools.testcase.TestSkipped

6.2.0

• Loose lower bound of packaging library version

• fix: correctly pass ssl_ca_certs to sentinel when enabled

• Add requirements check job

• Remove old excludes

• Define characteristics of etcd/etcd3gw driver

• pre-commit: Bump version, add doc8

• Remove unnecessary dependencies

• Remove use of distutils

6.1.0

• Make authentication/SSL for redis sentinel optional

• reno: Update master for unmaintained/wallaby

• reno: Update master for unmaintained/victoria

6.0.1

• Fix sentinel tests not running

• Fix broken redis sentinel support

6.0.0

• redis: Fix wrong type used to parse socket_keepalive

• redis: support healthcheck interval

• Prevent potential ReDoS attack

• Show coverage report

• Redis: Fix missing ssl/auth options for sentinel

• redis: Fix parsing of sentinel fallbacks containing IPv6 address

• redis: Add username

• Move driver tests to drivers directory

• Bump hacking

• Update python classifier in setup.cfg

• Ignore .eggs directory

• Fix handling of timeout and blocking

5.0.0

• tox: Bump python runtime versions in the default envlist

• Deprecate zake driver because of unmaintained library

• etcd3gw: Discover API version automatically

• Redis: Allow customizing ssl ca certificates path

• Remove etcd3 drvier

• Fix bindep for Debian 12

4.3.0

• Add missing % in diagnostic_lines.append call

• Update the default etcd3gw endpoint to v3

• Replace en-dash with ASCII minus in a docstring

• Cleanup py27 support

4.2.0

• Fix: Add timeout for mysql driver

4.1.0

• Revert “Moves supported python runtimes from version 3.8 to 3.10”

4.0.0

• Fix mysql timeout

• Moves supported python runtimes from version 3.8 to 3.10

• redis: Make socket_connect_timeout configurable

• Accept float values for socket_timeout

• Change StrictRedis usage to Redis

• tox: set allowlist_externals

• Allow to pass ssl-related args for zookeeper

• Loosen protobuf version that’s used for docs/renos

• Add grouping support in etcd to compatibility matrix

3.2.0

3.1.0

• Support etcd3gw api version

• remove unicode from code

3.0.0

• Cap protobuf < 4.x

• Fix inappropriate logic in memcachedlock.release()

• [etcd3gw] create new lease if expired

• Drop python3.6/3.7 support in testing runtime

• Enable watch functionality for Etcd3Driver

2.11.1

• Fix getting group with prefix in etcd3gw driver

2.11.0

• Bump tenacity dependency to >= 5.0.0

• Support later tenacity versions

• Update CI to use unversioned jobs template

• Deprecate the etcd3 driver

2.10.1

• Fix docstring for get_members()

• Add TLS support for MySQL driver

2.10.0

• Enable retries in redis driver

• setup.cfg: Replace dashes with underscores

2.9.0

• setup.cfg: Replace dashes with underscores

• Fix formatting of release list

• Move flake8 as a pre-commit local target

• Retry on redis connection errors

• Update master for stable/wallaby

• Cap tenacity to unblock the gate

• Bump hacking and flake8 version to fix pep8 job

• Use py3 as the default runtime for tox

2.8.0

• Replace md5 with oslo version

• Adding pre-commit

• Blacklist etcd3gw 0.2.6

• Add Python3 wallaby unit tests

• Update master for stable/victoria

2.7.1

• Use safe_decode for decoding in zookeeper driver

2.7.0

• Fix breakage with PyMySQL 0.10.0

• hashring: allow choosing hash function

• Remove six library

2.6.0

• Implements Group API for the Consul driver

2.5.1

2.5.0

• Stop to use the __future__ module

• Switch to newer openstackdocstheme and reno versions

• Add python 3.8 to classifiers

2.4.0

• Use unittest.mock instead of third party mock

• Add support for Consul ACL token parameter

• Switch to Victoria tests

• Add nose as test-requirement

• Fix mysql driver comparison operator

• Add release notes links to doc index

• Update master for stable/ussuri

2.3.0

• Add TLS support in etcd3 and etcd3gw drivers

• Drop requirements-check job

• ignore reno generated artifacts

2.2.0

• Adds heartbeating to the consul driver

2.1.0

2.0.0

• [ussuri][goal] Drop python 2.7 support and testing

1.67.2

• RedisLock release() should not check if the lock has been acquired

1.67.1

1.67.0

• Drop os-testr test-requirement and pretty_tox.sh

• Update master for stable/train

• Add shared arg in metaclass Lock

1.66.2

• Fix membership lease issue on the etcd3gw driver

1.66.1

• Fix wrong log level during heartbeat

1.66.0

• Add Python 3 Train unit tests

• Move grpcio from requirements.txt to extras

• Blacklist sphinx 2.1.0

1.65.0

• Move test deps to test-requirements.txt

• Remove unused requirements

• Update Sphinx requirement and uncap grpcio

• Avoid redis lock’s expire_time exceeding timeout

• Referencing testenv deps now works

• Update master for stable/stein

• Replace git.openstack.org URLs with opendev.org URLs

• Remove py35, add py37 classifiers

• Unblock tooz gate

• OpenDev Migration Patch

• add python 3.7 unit test job

1.64.2

1.64.1

• Fixed UnicodeEncodeError for Python2 unicode objects

1.64.0

• More explicitly document driver connection strings

• Unblock tooz gate

• Change openstack-dev to openstack-discuss

1.63.1

1.63.0

• coordination: do not retry the whole heartbeat on fail

• Use templates for cover

• Migrate to stestr

• Fix coverage tests

• Switch to autodoc_default_options

• Ensure consistent encoding of strings for ID

• add lib-forward-testing-python3 test job

• add python 3.6 unit test job

• import zuul job settings from project-config

• Update reno for stable/rocky

• Add release note link in README

• fix tox python3 overrides

1.62.0

• Trivial: Update pypi url to new url

• set default python to python3

• Implement group support for etcd3gw

1.61.0

• Zuul: Remove project name

• Zuul: Remove project name

• Update reno for stable/queens

• partitioner: do not use hash() to determine object identity

• msgpack-python has been renamed to msgpack

• Follow the new PTI for document build

• Remove tox_install.sh

• Use native Zuul v3 tox jobs

• Add doc/requirements.txt

• Remove setting of version/release from releasenotes

• Zuul: add file extension to playbook path

• Move legacy jobs to project

1.59.0

• Acquire fails with “ToozError: Not found”

• redis: always remove lock from acquired lock when release()ing

• redis: log an error on release failure

• Use the same default timeout for async result

• Update reno for stable/pike

1.58.0

• Update URLs in documents according to document migration

• doc: use list-table for driver support tables

• rearrange existing documentation to fit the new standard layout

1.57.4

• Switch from oslosphinx to openstackdocstheme

• Turn on warning-is-error in doc build

• Add etcd3 group support

1.57.3

• Make sure Lock.heartbeat() returns True/False

• etcd3: skip ProcessPool based test

• etcd3: replace custom lock code by more recent etcd3 lock code

• pgsql: fix self._conn.close() being called without connection

• test: leverage existing helper method in test_partitioner

• coordination: remove double serialization of capabilities

• tests: fix missing .get() on some group operations

• Mutualize executor code in a mixin class

• coordination: fix reversed fiels for __repr__ for events

• Fix docstring for group and member id

1.57.2

• {my,pg}sql: close connections when out of retry

• Disable test_get_lock_serial_locking_two_lock_process for etcd3

• Simplify env list and test running

• Factorize tox envlist for better readability

1.57.1

• consul: remove unused executor

1.57.0

• Separate etcd3gw driver that uses the etcd3 grpc gateway

• etcd3: use discard() rather than remove()

• etcd: fix blocking argument

• etcd: fix acquire(blocking=True) on request exception

• etcd3: fix test run

• coordination: factorize common async result futures code

1.56.1

• Fix psycopg2 connection argument

1.56.0

• doc: update heartbeat doc to use start_heart=True

• sql: close connection for lock if not used

• http->https for security

• etcd3: add etcd3 coordination driver

1.55.0

• Implement heartbeat for FileDriver

• simplify hashring node lookup

1.54.0

• redis: fix concurrent access on acquire()

• tests: tests fail if no URL is set + run partitioner tests on basic drivers

• tests: fix etcd and consul test run

• add weight tests for add_nodes

• get weight of existing members

• coordination: do not get member list if not needed

• Add shared filelock

1.53.0

• Enhance heartbeat sleep timer

1.52.0

• FileDriver:Support multiple processes

• Switch tests to use latest etcd - 3.1.3

1.51.0

• pass on partitions

• hashring: allow to use bytes as node name

1.50.0

• postgresql: only pass username and password if they are set

• Rewrite heartbeat runner with event

• Adds authentication support for zookeeperDriver

1.49.0

• support unicode node name

• Update reno for stable/ocata

1.48.0

• Fix test function name with two underscores to have only one

1.47.0

• Add partitioner implementation

• Stop making tooz.utils depending on tooz.coordination

• [doc] Note lack of constraints is a choice

• The ‘moves.moved_class’ function creates a new class

• Add weight support to the hashring

• coordination: allow to pass capabilities in join_group_create()

• coordination: fix moved_class usage for ToozError

• zookeeper: switch to standard group membership watching

• Add a hashring implementation

• Move ToozError to root module

• Fixup concurrent modification

• Replaces uuid.uuid4 with uuidutils.generate_uuid()

1.46.0

• Do not re-set the members cache for watchers by default

• coordination: add __repr__ for join/leave events

• coordination: renforce event based testing

• Factorize member_id in the base coordinator class

• Use the internal group of list rather than listing the groups

• Move the cached-based watcher implementation into its own class

1.45.0

• Factorize group quit on stop()

• coordination: make get_members() return a set

• Replace ‘assertTrue(a (not)in b)’ with ‘assert(Not)In(a, b)’

• Changed author and author-email

• redis: make sure we don’t release and heartbeat a lock at the same time

• coordinator: add join_group_create

• Replace retrying with tenacity

• Add CONTRIBUTING.rst

• Replace ‘assertTrue(a in b)’ with ‘assertIn(a, b)’ and ‘assertFalse(a in b)’ with ‘assertNotIn(a, b)’

• Using assertIsNone() instead of assertEqual(None, …)

• tox: use pretty tox output

• tox: install docs dependency in docs target and reno

• Bump hacking to 0.12

• Add reno for release notes management

1.44.0

• Changed the home-page link

• file: update .metadata atomically

• file: return converted voluptuous data

• file: move _load_and_validate to a method

• file: move _read_{group,member}_id to staticmethod-s

• etcd: run tests in clustering mode too

• Use method ensure_tree from oslo.utils

• Switch from Python 3.4 to Python 3.5

• Install only needed packages

• Fix a typo in file.py

• Update etcd version in tests

1.43.0

• Makedirs only throws oserror, so only catch that

1.42.0

• etcd: don’t run heartbeat() concurrently

• Raise tooz error when unexpected last entries found

• etcd: properly block when using ‘wait’

• Share _get_random_uuid() among all tests

• Updated from global requirements

• Clean leave group hooks when unwatching

• Fix the test test_unwatch_elected_as_leader

• Updated from global requirements

1.41.0

• File driver: properly handle Windows paths

• Updated from global requirements

• Updated from global requirements

1.40.0

• Add docs for new consul driver

• Change dependency to use flavors

• Run doc8 only in pep8 target

• Move pep8 requirements in their own target

• zookeeper: do not hard depend on eventlet

• Remove unused iso8601 dependency

• tests: remove testscenario usage

• file: set no timeout by default

• tests: move bad_url from scenarios to static test

• Expose timeout capabilities and use them for tests

• Use pifpaf to setup daemons

1.39.0

• Updated from global requirements

1.38.0

• Using LOG.warning instead of LOG.warn

• Updated from global requirements

• redis: do not force LuaLock

• Fix coordinator typo

• Updated from global requirements

• Ensure etcd is in developer and driver docs

1.37.0

• Remove unused consul future result

• Updated from global requirements

• Add a consul based driver

• file: make python2 payload readable from python3

1.36.0

• Updated from global requirements

1.35.0

• Drop babel as requirement since its not used

• Updated from global requirements

• Updated from global requirements

• Updated from global requirements

• Updated from global requirements

• coordination: expose a heartbeat loop method

1.34.0

1.33.0

• Updated from global requirements

• Compute requires_beating

• Fix calling acquire(blocking=False) twice leads to a deadlock

1.32.0

• Raises proper error when unwatching a group

1.31.0

• Updated from global requirements

• Updated from global requirements

• Add .tox, *.pyo and *.egg to .gitignore

• Enable OS_LOG_CAPTURE so that logs can be seen (on error)

1.30.0

• Updated from global requirements

• Add lock breaking

• pgsql: fix hostname parsing

• Updated from global requirements

• Updated from global requirements

• Update voluptuous requirement

• Updated from global requirements

• Updated from global requirements

• Have zookeeper heartbeat perform basic get

• Add desired characteristics strict subset validation

• Add base64 key encoder (and validations)

• Use voluptuous instead of jsonschema

• Add programatic introspection of drivers characteristic(s)

• Updated from global requirements

• pep8: fix remaining errors and enable all checks

• Use utils.convert_blocking to convert blocking argument

• Adjust some of the zookeeper exception message

• Fix etcd env setup

• tests: do not hardcode /tmp

• utils: replace exception_message by exception_to_unicode

• Add a default port and default host

• etcd: driver with lock support

• Use utils.to_binary instead of using redis module equivalent

• Remove tested under 2.6 from docs

1.29.0

• Updated from global requirements

• Add basic file content schema validation

• Spice up the driver summary/info page

• Make all locks operate the same when fetched from different coordinators

• Add noted driver weaknesses onto the drivers docs

• Updated from global requirements

• File: read member id from file with suffix “.raw”

• Reduce duplication of code in handling multi-type blocking argument

• Updated from global requirements

• Add comment in memcache explaining the current situation with lock release

1.28.0

• Add ‘requires_beating’ property to coordination driver

• {pg,my}sql: fix AttributeError on connection failure

• tests: allow ipc to bypass blocking=False test

• pgsql: remove unused left-over code

• Add ‘is_still_owner’ lock test function

1.27.0

• Updated from global requirements

• Updated from global requirements

• Remove python 2.6 and cleanup tox.ini

1.26.0

• Updated from global requirements

• Allow specifying a kazoo async handler ‘kind’

• Updated from global requirements

1.25.0

• Updated from global requirements

• Add standard code coverage configuration file

• docs - Set pbr ‘warnerrors’ option for doc build

• Include changelog/history in docs

• Updated from global requirements

• Expose Znode Stats and Capabilities

• Allow more kazoo specific client options to be proxied through

1.24.0

• Updated from global requirements

1.23.0

• Changes to add driver list to the documentation

• Updated from global requirements

1.22.0

• Updated from global requirements

• Accept blocking argument in lock’s context manager

• Make RedisLock’s init consistent with other locks

• Updated from global requirements

1.21.0

• Raise exception on failed lock’s CM acquire fail

• Be more restrictive on the executors users can provide

1.20.0

• Updated from global requirements

• Updated from global requirements

• Use futurist to allow for executor providing and unifying

• Use a lua script(s) instead of transactions

1.19.0

• Updated from global requirements

• Change Lock.name to a property

• Update .gitignore

• Updated from global requirements

• Fixup dependencies

• Expose started state of coordinator to external

• Updated from global requirements

• Updated from global requirements

1.18.0

• Remove tooz/openstack as it is empty and not used

• Fix sp ‘seonds’ -> ‘seconds’

• Ensure run_watchers called from mixin, not base class

• Updated from global requirements

• Update compatibility matrix due to file drivers new abilities

0.17.0

• No longer need kazoo lock custom retry code

• Ensure unwatch_elected_as_leader correctly clears hooks

0.16.0

• Updated from global requirements

• Updated from global requirements

• Ensure lock(s) acquire/release returns boolean values

• Expose ‘run_elect_coordinator’ and call it from ‘run_watchers’

• Share most of the `run_watchers` code via a common mixin

• Remove 2.6 classifier

• Remove file-driver special no-async abilities

• Delay interpolating the LOG string

• Use `encodeutils.exception_to_unicode` for exception -> string function

• Use the `excutils.raise_with_cause` after doing our type check

• Updated from global requirements

• Use the ‘driver_lock’ around read operations

• Updated from global requirements

• Switch badges from ‘pypip.in’ to ‘shields.io’

• Updated from global requirements

• Add watch file driver support

• Make the file driver more capable (with regard to groups)

• Ensure locks can not be created outside of the root file driver directory

• Updated from global requirements

• Use MySQL default port when not set explicitly

• Use fasteners library for interprocess locks

• Implement watch/unwatch elected_as_leader for redis driver

• Updated from global requirements

• Use lua locks instead of pipeline locks

• Move more string constants to class constants with docstrings

• Updated from global requirements

• Updated from global requirements

• Remove support for redis < 2.6.0

• Expose Zookeeper client class constants

• Expose redis client class constants

• Use a serialization/deserialization specific exception

• Expose memcache coord. class constants

• Explicitly start and execute most transactions

• Provide and use a options collapsing function

• Add zookeeper tag in setup.cfg

• Use pymemcache pooled client

• Use oslo.serialization msgpackutils

• Provide ability for namespace customization for Zookeeper and Zake drivers

• Typo in Locking doc

• Move optional driver requirements to test-requirements.txt

• Have run_watchers take a timeout and respect it

• Heartbeat on acquired locks copy

• Avoid using a thread local token storage

0.15.0

• Fix param name to be its right name

• Replace more instance(s) of exception chaining with helper

• Just use staticmethod functions to create _dumps/_loads

• Uncap library requirements for liberty

• Link AOF to redis persistence docs

• Add exception docs to developer docs

• Add + use helper to raise + chain exceptions

• Allow the acquired file to be closed manually

• Updated from global requirements

• Silence logs + errors when stopping and group membership lost

• Make and use a thread safe pymemcache client subclass

• Handle errors that come out of pymemcache better

• Use rst inline code structure + link to sentinel

0.14.0

• Beef up the docstrings on the various drivers

• fix lock concurrency issues with certain drivers

• Add pypi download + version badges

• Denote that 2.6 testing is still happening

• Updated from global requirements

• Use a sentinel connection pool to manage failover

• fix mysql driver url parsing

0.13.1

• Switch to non-namespaced module imports

• Add a driver feature compatibility matrix

• Remove support for 3.3

0.13.0

• Two locks acquired from one coord must works

• Updated from global requirements

• Releases locks in tests

• Allow coordinator non-string options and use them

• Since we use msgpack this can be more than a str

• Updated from global requirements

• Avoid re-using the same timeout for further watcher ops

0.12

• retry: fix decorator

• file: fix typo in errno.EACCES

0.11

• Add a file based driver

• Upgrade to hacking 0.10

• Update sentinel support to allow multiple sentinel hosts

• Allow to pass arguments to retry()

• IPC simplification

0.10

• Add support for an optional redis-sentinel

• README.rst tweaks

• A few more documentation tweaks

• Sync requirements to global requirements

• Add create/join/leave group support in IPC driver

• Add driver autogenerated docs

• Update links + python version supported

• zookeeper: add support for delete group

• redis: add support for group deletion

• tests: minor code simplification

• memcached: add support for group deletion

• memcached: add support for _destroy_group

• Switch to using oslosphinx

• Add doc on how transaction is itself retrying internally

• Fix .gitreview after rename/transfer

• tests: use scenarios attributes for timeout capability

• tests: check for leave group events on dead members cleanup

• memcached: delete stale/dead group members on get_members()

• tests: remove check_port

• tests: do not skip test on connection error

0.9

• doc: add missing new drivers

• doc: switch examples to Zake

• doc: add locking

• Fix tox envlist

• Drop Python 3.3 tests in tox

• Allow tox with py34 and MySQL

• Test connection error scenarios on more drivers

• Translate psycopg2 errors/exceptions into tooz exceptions

• Ensure ‘leave_group’ result gotten before further work

• watch_leave_group not triggering callback on expired members

• Add MySQL driver

• Discard ‘self’ from ‘_joined_groups’ if we got booted out

• Implement non-blocking locks with PostgreSQL

• More retry code out of memcached

• Add a PostgreSQL driver

• Fix gate

• Handle when a group used to exist but no longer does

• tox: split redis/memcached env

• Fix memcached heartbeat on start()

• tox: splits test scenarios

• Add a minimum redis version check while starting

• Make requirement on redis 2.10.x explicit

• Try to use PSETEX when possible

• Use hdel with many keys where supported

• Avoid logging warnings when group deleted or member gone

• Ensure that we correctly expire (and cleanup) redis members

• Various fixes for locks and version compatibility

• Move sysv_ipc deps to test-requirements

0.8

• test: try to stop() first

• Convert the rest of memcached driver functions to futures

• Add a assertRaisesAny helper method

• Allow zake to be tested

• Add a redis driver

• Ensure groups leaving returns are gotten

• Raise the new OperationTimedOut when futures don’t finish

• Start to add a catch and reraise of timed out exceptions

• Adjust the timeout to reflect the repeated retries

• ipc: do not delete the lock if we never acquired it

• Add home-page field

0.7

• Split up the requirements for py2.x and py3.x

• ipc: Fix acquire lock loop logic

0.6

• Make lock blocking with no time out by default

0.5

• coordination: remove destroy() from the lock protocol

• IPC: fix a potential race condition at init

• Fix IPC driver on OS X

• Switch to oslo.utils

• Blacklist retrying 1.3.0

• Use futures to make parts of the memcached driver async

• Have examples run in the py27 environment and make them work

0.4

• Standardize the async result subclasses

• Fix the comment which was borrowed from the IPC driver

• Be more tolerant of unicode exceptions

• Standardize on the same lock acquire method definition

• Standardize on hiding the lock implementation

• On lock removal validate that they key was actually deleted

• Use a thread safe deque instead of a queue

• Change inline docs about class fake storage variable

• LOG a warning if the heartbeat can not be validated

• Add doc8 to the py27 test running

• Use the more reliable sysv_ipc instead of posix_ipc+lockutils

• Only start zookeeper/memcached when not already running

• Let zake act as a in-memory fully functional driver

• Switch to a custom NotImplemented error

• Ensure lock list isn’t mutated while iterating

• Move Zake driver code to separated Python module

• Work toward Python 3.4 support and testing

• Unlock the kazoo version

• Bump up zake to be using the newer 0.1 or greater

• Fix zake driver with latest release

• memcached: switch leader election implementation to a lock

• Add the generation of the documentation in tox.ini

• Add coverage report

0.3

• Switch to URL for loading backends

• Import network_utils from Oslo

• coordination: add IPC driver

• coordination: raise NotImplementedError as default

• Add documentation

• Upgrade hacking requirement

• memcached: use retrying rather than sleeping

• Use retrying instead of our custom code

• Update requirements file matching global requ

0.2

• memcached: implement leader election

• Fix a race condition in one of the test

0.1

• memcached: add locking

• coordination: implement lock mechanism in ZK

• coordination, zookeeper: add get_leader()

• coordination, zookeeper: implement leader election

• coordination: remove wrong comment in tests

• memcached: add support for leave events

• memcached: implement {un,}watch_join_group()

• coordination: raise GroupNotCreated when watching uncreated group

• coordination, zookeeper: add {un,}watch_leave_group

• coordination, zookeeper: add watch_join_group

• tests: skip test if function is not implemented

• coordination: add hooks system

• Add memcached driver

• zookeeper: use bytes as input/output type

• tests: test client disconnection

• coordination: add heartbeat method

• Add pbr generated and testr files to gitignore

• coordination: enhance MemberAlreadyExist exception

• coordination: enhance GroupNotCreated exception

• coordination: enhance MemberNotJoined

• coordination: enhance GroupAlreadyExist exception

• tests: test capabilities on non existent group/member

• tests: add a test for group already existing

• tests: fix variable name

• Fix the default prototype for join_group

• Adds basic tests which deals with exceptions

• Fixes TypeError in _leave_group_handler

• Remove _wrap_call_kazoo

• Add asynchronous API

• Delete models.py and clean get_members()

• Add a fake ZooKeeper driver

• Allow passing in a handler

• First commit of Tooz

• Added .gitreview