发布于 2016-02-15 05:19:26 | 261 次阅读 | 评论: 0 | 来源: 网友投递
Apache Curator
Curator提供了对zookeeper客户端的封装，并监控连接状态和会话session，特别是会话session过期后，curator能够重新连接zookeeper，并且创建一个新的session。
Apache Curator 今天发布两个新版本，分别是 2.10.0 和 3.1.0 。
其中 2.10.0 改进内容：
[CURATOR-208] - InterProcessSemaphoreV2 swallows InterruptedException
[CURATOR-209] - Background retry falls into infinite loop of reconnection after connection loss
[CURATOR-233] - Bug in double barrier
[CURATOR-244] - Creating parents with ACLProvider puts wrong ACLs on znodes
[CURATOR-278] - In transactions compressed option does not work with some fluent api combinations
[CURATOR-297] - Curator quickly starting+stopping a persistent ephemeral node causes dangling ephemeral node
[CURATOR-279] - Semaphore Leases should return the node name
[CURATOR-294] - Optimize TreeCache, fix possible concurrency issue
[CURATOR-296] - Notify cache listeners when re-init completes after reconnect
[CURATOR-298] - Curator NodeCache.start() is blocking even with buildInitial=false
[CURATOR-287] - PersistentEphemeralNode should be generalized to accept all create modes
[CURATOR-288] - Provide a mechanism to limit tree traversal in TreeCache + Return old values in NODE_REMOVED event
3.1.0 改进内容：
[CURATOR-208] - InterProcessSemaphoreV2 swallows InterruptedException
[CURATOR-244] - Creating parents with ACLProvider puts wrong ACLs on znodes
[CURATOR-271] - Curator does not run sync callback on supplied Executor
[CURATOR-274] - version 2.9.0 incorrectly calls mkdirs to create container nodes, when running against zk 3.4.6
[CURATOR-281] - Usage of TestingServer fails when upgrading to 3.0
[CURATOR-284] - NullPointerException at EnsembleTracker.processConfigData
[CURATOR-290] - Watcher removal is not removing internal Curator data structures
[CURATOR-297] - Curator quickly starting+stopping a persistent ephemeral node causes dangling ephemeral node
[CURATOR-299] - Copious "Failed to find watcher" log messages when closing Curator 3.0 recipes
[CURATOR-300] - Creating a node using storingStatIn breaks Curator with a logged NullPointerException
[CURATOR-302] - TestTreeCache.testKilledSession() fails in 3.0 branch
[CURATOR-279] - Semaphore Leases should return the node name
[CURATOR-294] - Optimize TreeCache, fix possible concurrency issue
[CURATOR-296] - Notify cache listeners when re-init completes after reconnect
[CURATOR-298] - Curator NodeCache.start() is blocking even with buildInitial=false
[CURATOR-287] - PersistentEphemeralNode should be generalized to accept all create modes
[CURATOR-288] - Provide a mechanism to limit tree traversal in TreeCache + Return old values in NODE_REMOVED event
[CURATOR-289] - Implement CURATOR-278 in Curator 3.0
[CURATOR-291] - Fix numerous "NamespaceWatcherMap is not empty" errors in test