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Zookeeper Tools

Project description

Zookeeper Tools

``zktools`` is a package of tools implementing higher level constructs using
`Apache Zookeeper`_.

It currently provides:

* ``Configuration`` - Zookeeper Configuration Helpers
to store and load configuration information stored
in Zookeeper nodes.
* ``Locks`` - A Zookeeper lock with support for
non-blocking acquire, modeled on Python's Lock objects that also includes a
`Revocable Shared Locks with Freaking Laser Beams` described in the
`Zookeeper Recipe's

See `the full docs`_ for more information.


``zktools`` is offered under the MPL license.


``zktools`` is made available by the `Mozilla Foundation`.

.. _Apache Zookeeper:
.. _the full docs:


0.2 (02/03/2012)


- Added context manager return to lock to allow use of the 'with'
- Refactored to use zc.zk ZooKeeper library for higher level Zookeeper
abstraction with automatic watch re-establishment.


- Node object to retrieve ZNode data from Zookeeper and keep it up
to date.
- Node objects can have data and children subscribers.
- NodeDict object that maps a shallow tree (one level of children)
into a dict-like object.

Backward Incompatibilities

- SharedZkLock has been refactored into ZkWriteLock and ZkReadLock.
- ``revoked`` is a property of Locks, not a method.
- ZkConnection is gone, lock objects, ZkNode, and ZkNodeDict all expect
zc.zk ZooKeeper instances.

0.1 (11/22/2011)


- Lock implementation, with revokable shared locks.
- Zookeeper connection object with automatic reconnect.

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