Apache ZooKeeper 3.3.4 发布

来源: OSCHINA
编辑: 红薯
2011-11-30

ZooKeeper是Hadoop的正式子项目,它是一个针对大型分布式系统的可靠协调系统,提供的功能包括:配置维护、名字服务、分布式同步、组服务等。ZooKeeper的目标就是封装好复杂易出错的关键服务,将简单易用的接口和性能高效、功能稳定的系统提供给用户。

Apache ZooKeeper 3.3.4 主要改进:

Bug  
[ZOOKEEPER-961] Watch recovery after disconnection when connection string contains a prefix
[ZOOKEEPER-1006] QuorumPeer "Address already in use" -- regression in 3.3.3
[ZOOKEEPER-1046] Creating a new sequential node results in a ZNODEEXISTS error
[ZOOKEEPER-1049] Session expire/close flooding renders heartbeats to delay significantly
[ZOOKEEPER-1069] Calling shutdown() on a QuorumPeer too quickly can lead to a corrupt log
[ZOOKEEPER-1087] ForceSync VM arguement not working when set to "no"
[ZOOKEEPER-1097] Quota is not correctly rehydrated on snapshot reload
[ZOOKEEPER-1117] zookeeper 3.3.3 fails to build with gcc >= 4.6.1 on Debian/Ubuntu
[ZOOKEEPER-1154] Data inconsistency when the node(s) with the highest zxid is not present at the time of leader election
[ZOOKEEPER-1156] Log truncation truncating log too much - can cause data loss
[ZOOKEEPER-1174] FD leak when network unreachable
[ZOOKEEPER-1189] For an invalid snapshot file(less than 10bytes size) RandomAccessFile stream is leaking.
[ZOOKEEPER-1203] Zookeeper systest is missing Junit Classes
[ZOOKEEPER-1206] Sequential node creation does not use always use digits in node name given certain Locales.
[ZOOKEEPER-1208] Ephemeral node not removed after the client session is long gone
[ZOOKEEPER-1212] zkServer.sh stop action is not conformat with LSB para 20.2 Init Script Actions
[ZOOKEEPER-1264] FollowerResyncConcurrencyTest failing intermittently
[ZOOKEEPER-1271] testEarlyLeaderAbandonment failing on solaris - clients not retrying connection
[ZOOKEEPER-1283] building 3.3 branch fails with Ant 1.8.2 (success with 1.7.1 though)
改进  
[ZOOKEEPER-1103] In QuorumTest, use the same "for ( .. try { break } catch { } )" pattern in testFollowersStartAfterLeaders as in testSessionMove.
[ZOOKEEPER-1239] add logging/stats to identify fsync stalls
[ZOOKEEPER-1301] backport patches related to the zk startup script from 3.4 to 3.3 release
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