ZooKeeper 3.4.13 发布，分布式应用程序协调服务

内容简介：ZooKeeper 3.4.13 发布了，ZooKeeper是一个分布式应用程序协调服务，是 Google Chubby 的开源实现，也是 Hadoop 和 Hbase 的重要组件。提供的功能包括：配置维护、域名服务、分布式同步、组服务等。更新如下： Su...

ZooKeeper 3.4.13 发布了，ZooKeeper是一个分布式应用程序协调服务，是 Google  Chubby 的开源实现，也是 Hadoop 和 Hbase 的重要组件。提供的功能包括：配置维护、域名服务、分布式同步、组服务等。更新如下：

Sub-task

• [ZOOKEEPER-2980] - Backport ZOOKEEPER-2939 Deal with maxbuffer as it relates to proposals

Bug

• [ZOOKEEPER-2184] - Zookeeper Client should re-resolve hosts when connection attempts fail

• [ZOOKEEPER-2920] - Upgrade OWASP Dependency Check to 3.2.1

• [ZOOKEEPER-2959] - ignore accepted epoch and LEADERINFO ack from observers when a newly elected leader computes new epoch

• [ZOOKEEPER-2988] - NPE triggered if server receives a vote for a server id not in their voting view

• [ZOOKEEPER-2993] - .ignore file prevents adding src/java/main/org/apache/jute/compiler/generated dir to git repo

• [ZOOKEEPER-3007] - Potential NPE in ReferenceCountedACLCache#deserialize

• [ZOOKEEPER-3027] - Accidently removed public API of FileTxnLog.setPreallocSize()

• [ZOOKEEPER-3039] - TxnLogToolkit uses Scanner badly

• [ZOOKEEPER-3041] - Typo in error message, affects log analysis

New Feature

• [ZOOKEEPER-2994] - Tool required to recover log and snapshot entries with CRC errors

Improvement

• [ZOOKEEPER-3012] - Fix unit test: testDataDirAndDataLogDir should not use hardcode test folders

• [ZOOKEEPER-3019] - Add a metric to track number of slow fsyncs

• [ZOOKEEPER-3043] - QuorumKerberosHostBasedAuthTest fails on Linux box: Unable to parse:includedir /etc/krb5.conf.d/

Test

• [ZOOKEEPER-2415] - SessionTest is using Thread deprecated API.

• [ZOOKEEPER-2955] - Enable Clover code coverage report

• [ZOOKEEPER-2968] - Add C client code coverage tests

Release Notes - ZooKeeper - Version 3.4.12

Bug

• [ZOOKEEPER-2249] - CRC check failed when preAllocSize smaller than node data

• [ZOOKEEPER-2690] - Update documentation source for ZOOKEEPER-2574

• [ZOOKEEPER-2806] - Flaky test: org.apache.zookeeper.server.quorum.FLEBackwardElectionRoundTest.testBackwardElectionRound

• [ZOOKEEPER-2845] - Data inconsistency issue due to retain database in leader election

• [ZOOKEEPER-2893] - very poor choice of logging if client fails to connect to server

• [ZOOKEEPER-2923] - The comment of the variable matchSyncs in class CommitProcessor has a mistake.

• [ZOOKEEPER-2924] - Flaky Test: org.apache.zookeeper.test.LoadFromLogTest.testRestoreWithTransactionErrors

• [ZOOKEEPER-2931] - WriteLock recipe: incorrect znode ordering when the sessionId is part of the znode name

• [ZOOKEEPER-2936] - Duplicate Keys in log4j.properties config files

• [ZOOKEEPER-2944] - Specify correct overflow value

• [ZOOKEEPER-2948] - Failing c unit tests on apache jenkins

• [ZOOKEEPER-2951] - zkServer.cmd does not start when JAVA_HOME ends with a \

• [ZOOKEEPER-2953] - Flaky Test: testNoLogBeforeLeaderEstablishment

• [ZOOKEEPER-2960] - The dataDir and dataLogDir are used opposingly

• [ZOOKEEPER-2961] - Fix testElectionFraud Flakyness

• [ZOOKEEPER-2978] - fix potential null pointer exception when deleting node

• [ZOOKEEPER-2992] - The eclipse build target fails due to protocol redirection: http->https

Improvement

• [ZOOKEEPER-2950] - Add keys for the Zxid from the stat command to check_zookeeper.py

• [ZOOKEEPER-2952] - Upgrade third party libraries to address vulnerabilities

• [ZOOKEEPER-2962] - The function queueEmpty() in FastLeaderElection.Messenger is not used, should be removed.

• [ZOOKEEPER-2967] - Add check to validate dataDir and dataLogDir parameters at startup

发布公告

下载地址：http://zookeeper.apache.org/releases.html#download

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