ZooKeeper Release Notes

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+ PDF +

+ + Release Notes - ZooKeeper - Version 3.4.13 + +

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 +

+ +

Wish +

[ZOOKEEPER-2795] - Change log level for "ZKShutdownHandler is not registered" error message +

+ Release Notes - ZooKeeper - Version 3.4.11 + +

Sub-task +

[ZOOKEEPER-2707] - Fix "Unexpected bean exists!" issue in WatcherTests +
[ZOOKEEPER-2729] - Cleanup findbug warnings in branch-3.4: Correctness Warnings +
[ZOOKEEPER-2730] - Cleanup findbug warnings in branch-3.4: Disable Internationalization Warnings +
[ZOOKEEPER-2731] - Cleanup findbug warnings in branch-3.4: Malicious code vulnerability Warnings +
[ZOOKEEPER-2732] - Cleanup findbug warnings in branch-3.4: Performance Warnings +
[ZOOKEEPER-2733] - Cleanup findbug warnings in branch-3.4: Dodgy code Warnings +
[ZOOKEEPER-2749] - Cleanup findbug warnings in branch-3.4: Experimental Warnings +
[ZOOKEEPER-2754] - Set up Apache Jenkins job that runs the flaky test analyzer script. +
[ZOOKEEPER-2762] - Multithreaded correctness Warnings +
[ZOOKEEPER-2834] - ZOOKEEPER-2355 fix for branch-3.4 +

+ +

Bug +

[ZOOKEEPER-1643] - Windows: fetch_and_add not 64bit-compatible, may not be correct +
[ZOOKEEPER-2349] - Update documentation for snapCount +
[ZOOKEEPER-2355] - Ephemeral node is never deleted if follower fails while reading the proposal packet +
[ZOOKEEPER-2614] - Port ZOOKEEPER-1576 to branch3.4 +
[ZOOKEEPER-2691] - recreateSocketAddresses may recreate the unreachable IP address +
[ZOOKEEPER-2722] - Flaky Test: org.apache.zookeeper.test.ReadOnlyModeTest.testSessionEstablishment +
[ZOOKEEPER-2728] - Clean up findbug warnings in branch-3.4 +
[ZOOKEEPER-2740] - Port ZOOKEEPER-2737 to branch-3.4 +
[ZOOKEEPER-2743] - Netty connection leaks JMX connection bean upon connection close in certain race conditions. +
[ZOOKEEPER-2758] - Typo: transasction --> transaction +
[ZOOKEEPER-2759] - Flaky test: org.apache.zookeeper.server.quorum.QuorumCnxManagerTest.testNoAuthLearnerConnectToAuthRequiredServerWithHigherSid +
[ZOOKEEPER-2774] - Ephemeral znode will not be removed when sesstion timeout, if the system time of ZooKeeper node changes unexpectedly. +
[ZOOKEEPER-2775] - ZK Client not able to connect with Xid out of order error +
[ZOOKEEPER-2777] - There is a typo in zk.py which prevents from using/compiling it. +
[ZOOKEEPER-2783] - follower disconnects and cannot reconnect +
[ZOOKEEPER-2785] - Server inappropriately throttles connections under load before SASL completes +
[ZOOKEEPER-2786] - Flaky test: org.apache.zookeeper.test.ClientTest.testNonExistingOpCode +
[ZOOKEEPER-2798] - Fix flaky test: org.apache.zookeeper.test.ReadOnlyModeTest.testConnectionEvents +
[ZOOKEEPER-2809] - Unnecessary stack-trace in server when the client disconnect unexpectedly +
[ZOOKEEPER-2811] - PurgeTxnLog#validateAndGetFile: return tag has no arguments. +
[ZOOKEEPER-2818] - Improve the ZooKeeper#setACL java doc +
[ZOOKEEPER-2841] - ZooKeeper public include files leak porting changes +
[ZOOKEEPER-2859] - CMake build doesn't support OS X +
[ZOOKEEPER-2861] - Main-Class JAR manifest attribute is incorrect +
[ZOOKEEPER-2874] - Windows Debug builds don't link with `/MTd` +
[ZOOKEEPER-2890] - Local automatic variable is left uninitialized and then freed. +
[ZOOKEEPER-2905] - Don't include `config.h` in `zookeeper.h` +
[ZOOKEEPER-2906] - The OWASP dependency check jar should not be included in the default classpath +
[ZOOKEEPER-2908] - quorum.auth.MiniKdcTest.testKerberosLogin failing with NPE on java 9 +
[ZOOKEEPER-2909] - Create ant task to generate ivy dependency reports +
[ZOOKEEPER-2914] - compiler warning using java 9 +

+ +

Improvement +

[ZOOKEEPER-1669] - Operations to server will be timed-out while thousands of sessions expired same time +
[ZOOKEEPER-1748] - TCP keepalive for leader election connections +
[ZOOKEEPER-2788] - The define of MAX_CONNECTION_ATTEMPTS in QuorumCnxManager.java seems useless, should it be removed? +
[ZOOKEEPER-2856] - ZooKeeperSaslClient#respondToServer should log exception message of SaslException +
[ZOOKEEPER-2864] - Add script to run a java api compatibility tool +
[ZOOKEEPER-2870] - Improve the efficiency of AtomicFileOutputStream +
[ZOOKEEPER-2880] - Rename README.txt to README.md +
[ZOOKEEPER-2887] - define dependency versions in build.xml to be easily overridden in build.properties +

+ +

New Feature +

[ZOOKEEPER-1703] - Please add instructions for running the tutorial +
[ZOOKEEPER-2875] - Add ant task for running OWASP dependency report +

+ +

Test +

[ZOOKEEPER-2686] - Flaky Test: org.apache.zookeeper.test.WatcherTest. +

+ + Release Notes - ZooKeeper - Version 3.4.10 + +

Sub-task +

[ZOOKEEPER-2692] - Fix race condition in testWatchAutoResetWithPending +

+ +

Bug +

[ZOOKEEPER-2044] - CancelledKeyException in zookeeper branch-3.4 +
[ZOOKEEPER-2383] - Startup race in ZooKeeperServer +
[ZOOKEEPER-2465] - Documentation copyright notice is out of date. +
[ZOOKEEPER-2467] - NullPointerException when redo Command is passed negative value +
[ZOOKEEPER-2470] - ServerConfig#parse(String[]) ignores tickTime +
[ZOOKEEPER-2542] - Update NOTICE file with Netty notice in 3.4 +
[ZOOKEEPER-2552] - Revisit release note doc and remove the items which are not related to the released version +
[ZOOKEEPER-2558] - Potential memory leak in recordio.c +
[ZOOKEEPER-2573] - Modify Info.REVISION to adapt git repo +
[ZOOKEEPER-2574] - PurgeTxnLog can inadvertently delete required txn log files +
[ZOOKEEPER-2579] - ZooKeeper server should verify that dataDir and snapDir are writeable before starting +
[ZOOKEEPER-2606] - SaslServerCallbackHandler#handleAuthorizeCallback() should log the exception +
[ZOOKEEPER-2617] - correct a few spelling typos +
[ZOOKEEPER-2622] - ZooTrace.logQuorumPacket does nothing +
[ZOOKEEPER-2633] - Build failure in contrib/zkfuse with gcc 6.x +
[ZOOKEEPER-2646] - Java target in branch 3.4 doesn't match documentation +
[ZOOKEEPER-2651] - Missing src/pom.template in release +
[ZOOKEEPER-2652] - Fix HierarchicalQuorumTest.java +
[ZOOKEEPER-2671] - Fix compilation error in branch-3.4 +
[ZOOKEEPER-2678] - Large databases take a long time to regain a quorum +
[ZOOKEEPER-2680] - Correct DataNode.getChildren() inconsistent behaviour. +
[ZOOKEEPER-2689] - Fix Kerberos Authentication related test cases +
[ZOOKEEPER-2693] - DOS attack on wchp/wchc four letter words (4lw) +
[ZOOKEEPER-2696] - Eclipse ant task no longer determines correct classpath for tests after ZOOKEEPER-2689 +
[ZOOKEEPER-2706] - checkstyle broken on branch-3.4 +
[ZOOKEEPER-2710] - Regenerate documentation for branch-3.4 release +
[ZOOKEEPER-2712] - MiniKdc test case intermittently failing due to principal not found in Kerberos database +
[ZOOKEEPER-2726] - Patch for ZOOKEEPER-2693 introduces potential race condition +

+ +

Improvement +

[ZOOKEEPER-2479] - Add 'electionTimeTaken' value in LeaderMXBean and FollowerMXBean +
[ZOOKEEPER-2507] - C unit test improvement: line break between 'ZooKeeper server started' and 'Running' +
[ZOOKEEPER-2557] - Update gitignore to account for other file extensions +
[ZOOKEEPER-2594] - Use TLS for downloading artifacts during build +
[ZOOKEEPER-2620] - Add comments to testReadOnlySnapshotDir and testReadOnlyTxnLogDir indicating that the tests will fail when run as root +
[ZOOKEEPER-2672] - Remove CHANGE.txt +
[ZOOKEEPER-2682] - Make it optional to fail build on test failure +

+ +

New Feature +

[ZOOKEEPER-1045] - Support Quorum Peer mutual authentication via SASL +

+ +

Test +

[ZOOKEEPER-2502] - Flaky Test: org.apache.zookeeper.server.quorum.CnxManagerTest.testCnxFromFutureVersion +
[ZOOKEEPER-2650] - Test Improvement by adding more QuorumPeer Auth related test cases +
[ZOOKEEPER-2656] - Fix ServerConfigTest#testValidArguments test case failures +
[ZOOKEEPER-2664] - ClientPortBindTest#testBindByAddress may fail due to "No such device" exception +
[ZOOKEEPER-2665] - Port QA github pull request build to branch 3.4 and 3.5 +
[ZOOKEEPER-2716] - Flaky Test: org.apache.zookeeper.server.SessionTrackerTest.testAddSessionAfterSessionExpiry +

+ + Release Notes - ZooKeeper - Version 3.4.9 + +

Sub-task +

[ZOOKEEPER-2396] - Login object in ZooKeeperSaslClient is static +

+ +

Bug +

[ZOOKEEPER-1676] - C client zookeeper_interest returning ZOK on Connection Loss +
[ZOOKEEPER-2133] - zkperl: Segmentation fault if getting a node with null value +
[ZOOKEEPER-2141] - ACL cache in DataTree never removes entries +
[ZOOKEEPER-2195] - fsync.warningthresholdms in zoo.cfg not working +
[ZOOKEEPER-2243] - Supported platforms is completely out of date +
[ZOOKEEPER-2247] - Zookeeper service becomes unavailable when leader fails to write transaction log +
[ZOOKEEPER-2283] - traceFile property is not used in the ZooKeeper, it should be removed from documentation +
[ZOOKEEPER-2294] - Ant target generate-clover-reports is broken +
[ZOOKEEPER-2375] - Prevent multiple initialization of login object in each ZooKeeperSaslClient instance +
[ZOOKEEPER-2379] - recent commit broke findbugs qabot check +
[ZOOKEEPER-2385] - Zookeeper trunk build is failing on windows +
[ZOOKEEPER-2405] - getTGT() in Login.java mishandles confidential information +
[ZOOKEEPER-2450] - Upgrade Netty version due to security vulnerability (CVE-2014-3488) +
[ZOOKEEPER-2452] - Back-port ZOOKEEPER-1460 to 3.4 for IPv6 literal address support. +
[ZOOKEEPER-2477] - documentation should refer to Java cli shell and not C cli shell +
[ZOOKEEPER-2498] - Potential resource leak in C client when processing unexpected / out of order response +

+ +

Improvement +

[ZOOKEEPER-2240] - Make the three-node minimum more explicit in documentation and on website +
[ZOOKEEPER-2373] - Licenses section missing from pom file +
[ZOOKEEPER-2378] - upgrade ivy to recent version +
[ZOOKEEPER-2514] - Simplify releasenotes creation for 3.4 branch - consistent with newer branches. +

+ + Release Notes - ZooKeeper - Version 3.4.8 + +

Bug +

[ZOOKEEPER-1929] - std::length_error on update children +
[ZOOKEEPER-2211] - PurgeTxnLog does not correctly purge when snapshots and logs are at different locations +
[ZOOKEEPER-2229] - Several four-letter words are undocumented. +
[ZOOKEEPER-2281] - ZK Server startup fails if there are spaces in the JAVA_HOME path +
[ZOOKEEPER-2295] - TGT refresh time logic is wrong +
[ZOOKEEPER-2311] - assert in setup_random +
[ZOOKEEPER-2337] - Fake "invalid" hostnames used in tests are sometimes valid +
[ZOOKEEPER-2340] - JMX is disabled even if JMXDISABLE is false +
[ZOOKEEPER-2347] - Deadlock shutting down zookeeper +
[ZOOKEEPER-2360] - Update commons collections version used by tests/releaseaudit +
[ZOOKEEPER-2412] - leader zk out of memory, and leader db lastZxid is not update when process set data. +

+ + Release Notes - ZooKeeper - Version 3.4.7 + +

Sub-task +

[ZOOKEEPER-1866] - ClientBase#createClient is failing frequently +
[ZOOKEEPER-1868] - Server not coming back up in QuorumZxidSyncTest +
[ZOOKEEPER-1872] - QuorumPeer is not shutdown in few cases +
[ZOOKEEPER-1904] - WatcherTest#testWatchAutoResetWithPending is failing +
[ZOOKEEPER-1905] - ZKClients are hitting KeeperException$ConnectionLossException due to wrong usage pattern +
[ZOOKEEPER-2047] - testTruncationNullLog fails on windows +
[ZOOKEEPER-2237] - Port async multi to 3.4 branch +

+ +

Bug +

[ZOOKEEPER-602] - log all exceptions not caught by ZK threads +
[ZOOKEEPER-706] - large numbers of watches can cause session re-establishment to fail +
[ZOOKEEPER-1002] - The Barrier sample code should create a EPHEMERAL znode instead of EPHEMERAL_SEQUENTIAL znode +
[ZOOKEEPER-1029] - C client bug in zookeeper_init (if bad hostname is given) +
[ZOOKEEPER-1062] - Net-ZooKeeper: Net::ZooKeeper consumes 100% cpu on wait +
[ZOOKEEPER-1077] - C client lib doesn't build on Solaris +
[ZOOKEEPER-1222] - getACL should only call DataTree.copyStat when passed in stat is not null +
[ZOOKEEPER-1575] - adding .gitattributes to prevent CRLF and LF mismatches for source and text files +
[ZOOKEEPER-1797] - PurgeTxnLog may delete data logs during roll +
[ZOOKEEPER-1803] - Add description for pzxid in programmer's guide. +
[ZOOKEEPER-1833] - fix windows build +
[ZOOKEEPER-1853] - zkCli.sh can't issue a CREATE command containing spaces in the data +
[ZOOKEEPER-1878] - Inconsistent behavior in autocreation of dataDir and dataLogDir +
[ZOOKEEPER-1888] - ZkCli.cmd commands fail with "'java' is not recognized as an internal or external command" +
[ZOOKEEPER-1895] - update all notice files, copyright, etc... with the new year - 2014 +
[ZOOKEEPER-1897] - ZK Shell/Cli not processing commands +
[ZOOKEEPER-1900] - NullPointerException in truncate +
[ZOOKEEPER-1901] - [JDK8] Sort children for comparison in AsyncOps tests +
[ZOOKEEPER-1906] - zkpython: invalid data in GetData for empty node +
[ZOOKEEPER-1911] - REST contrib module does not include all required files when packaged +
[ZOOKEEPER-1913] - Invalid manifest files due to bogus revision property value +
[ZOOKEEPER-1917] - Apache Zookeeper logs cleartext admin passwords +
[ZOOKEEPER-1926] - Unit tests should only use build/test/data for data +
[ZOOKEEPER-1927] - zkServer.sh fails to read dataDir (and others) from zoo.cfg on Solaris 10 (grep issue, manifests as FAILED TO WRITE PID). +
[ZOOKEEPER-1939] - ReconfigRecoveryTest.testNextConfigUnreachable is failing +
[ZOOKEEPER-1943] - "src/contrib/zooinspector/NOTICE.txt" isn't complying to ".gitattributes" in branch-3.4 +
[ZOOKEEPER-1945] - deb - zkCli.sh, zkServer.sh and zkEnv.sh regression caused by ZOOKEEPER-1663 +
[ZOOKEEPER-1949] - recipes jar not included in the distribution package +
[ZOOKEEPER-2026] - Startup order in ServerCnxnFactory-ies is wrong +
[ZOOKEEPER-2033] - zookeeper follower fails to start after a restart immediately following a new epoch +
[ZOOKEEPER-2039] - Jute compareBytes incorrect comparison index +
[ZOOKEEPER-2049] - Yosemite build failure: htonll conflict +
[ZOOKEEPER-2052] - Unable to delete a node when the node has no children +
[ZOOKEEPER-2056] - Zookeeper 3.4.x and 3.5.0-alpha is not OSGi compliant +
[ZOOKEEPER-2060] - Trace bug in NettyServerCnxnFactory +
[ZOOKEEPER-2064] - Prevent resource leak in various classes +
[ZOOKEEPER-2073] - Memory leak on zookeeper_close +
[ZOOKEEPER-2096] - C client builds with incorrect error codes in VisualStudio 2010+ +
[ZOOKEEPER-2114] - jute generated allocate_* functions are not externally visible +
[ZOOKEEPER-2124] - Allow Zookeeper version string to have underscore '_' +
[ZOOKEEPER-2142] - JMX ObjectName is incorrect for observers +
[ZOOKEEPER-2146] - BinaryInputArchive readString should check length before allocating memory +
[ZOOKEEPER-2174] - JUnit4ZKTestRunner logs test failure for all exceptions even if the test method is annotated with an expected exception. +
[ZOOKEEPER-2186] - QuorumCnxManager#receiveConnection may crash with random input +
[ZOOKEEPER-2201] - Network issues can cause cluster to hang due to near-deadlock +
[ZOOKEEPER-2213] - Empty path in Set crashes server and prevents restart +
[ZOOKEEPER-2224] - Four letter command hangs when network is slow +
[ZOOKEEPER-2227] - stmk four-letter word fails execution at server while reading trace mask argument. +
[ZOOKEEPER-2235] - License update +
[ZOOKEEPER-2239] - JMX State from LocalPeerBean incorrect +
[ZOOKEEPER-2245] - SimpleSysTest test cases fails +
[ZOOKEEPER-2256] - Zookeeper is not using specified JMX port in zkEnv.sh +
[ZOOKEEPER-2268] - Zookeeper doc creation fails on windows +
[ZOOKEEPER-2279] - QuorumPeer loadDataBase() error message is incorrect +
[ZOOKEEPER-2296] - compilation broken for 3.4 +

+ +

Improvement +

[ZOOKEEPER-657] - Cut down the running time of ZKDatabase corruption. +
[ZOOKEEPER-1402] - Upload Zookeeper package to Maven Central +
[ZOOKEEPER-1506] - Re-try DNS hostname -> IP resolution if node connection fails +
[ZOOKEEPER-1574] - mismatched CR/LF endings in text files +
[ZOOKEEPER-1746] - AsyncCallback.*Callback don't have any Javadoc +
[ZOOKEEPER-1907] - Improve Thread handling +
[ZOOKEEPER-1948] - Enable JMX remote monitoring +
[ZOOKEEPER-2040] - Server to log underlying cause of SASL connection problems +
[ZOOKEEPER-2126] - Improve exit log messsage of EventThread and SendThread by adding SessionId +
[ZOOKEEPER-2179] - Typo in Watcher.java +
[ZOOKEEPER-2194] - Let DataNode.getChildren() return an unmodifiable view of its children set +
[ZOOKEEPER-2205] - Log type of unexpected quorum packet in learner handler loop +
[ZOOKEEPER-2315] - Change client connect zk service timeout log level from Info to Warn level +

+ + Release Notes - ZooKeeper - Version 3.4.6 + +

Sub-task +

[ZOOKEEPER-1414] - QuorumPeerMainTest.testQuorum, testBadPackets are failing intermittently +
[ZOOKEEPER-1459] - Standalone ZooKeeperServer is not closing the transaction log files on shutdown +
[ZOOKEEPER-1558] - Leader should not snapshot uncommitted state +
[ZOOKEEPER-1808] - Add version to FLE notifications for 3.4 branch +
[ZOOKEEPER-1817] - Fix don't care for b3.4 +
[ZOOKEEPER-1834] - Catch IOException in FileTxnLog +
[ZOOKEEPER-1837] - Fix JMXEnv checks (potential race conditions) +
[ZOOKEEPER-1838] - ZooKeeper shutdown hangs indefinitely at NioServerSocketChannelFactory.releaseExternalResources +
[ZOOKEEPER-1841] - problem in QuorumTest +
[ZOOKEEPER-1849] - Need to properly tear down tests in various cases +
[ZOOKEEPER-1852] - ServerCnxnFactory instance is not properly cleanedup +
[ZOOKEEPER-1854] - ClientBase ZooKeeper server clean-up +
[ZOOKEEPER-1857] - PrepRequestProcessotTest doesn't shutdown ZooKeeper server +
[ZOOKEEPER-1858] - JMX checks - potential race conditions while stopping and starting server +
[ZOOKEEPER-1867] - Bug in ZkDatabaseCorruptionTest +
[ZOOKEEPER-1873] - Unnecessarily InstanceNotFoundException is coming when unregister failed jmxbeans +

+ +

Bug +

[ZOOKEEPER-87] - Follower does not shut itself down if its too far behind the leader. +
[ZOOKEEPER-732] - Improper translation of error into Python exception +
[ZOOKEEPER-753] - update log4j dependency from 1.2.15 to 1.2.16 in branch 3.4 +
[ZOOKEEPER-805] - four letter words fail with latest ubuntu nc.openbsd +
[ZOOKEEPER-877] - zkpython does not work with python3.1 +
[ZOOKEEPER-978] - ZookeeperServer does not close zk database on shutdwon +
[ZOOKEEPER-1057] - zookeeper c-client, connection to offline server fails to successfully fallback to second zk host +
[ZOOKEEPER-1179] - NettyServerCnxn does not properly close socket on 4 letter word requests +
[ZOOKEEPER-1238] - when the linger time was changed for NIO the patch missed Netty +
[ZOOKEEPER-1334] - Zookeeper 3.4.x is not OSGi compliant - MANIFEST.MF is flawed +
[ZOOKEEPER-1379] - 'printwatches, redo, history and connect '. client commands always print usage. This is not necessary +
[ZOOKEEPER-1382] - Zookeeper server holds onto dead/expired session ids in the watch data structures +
[ZOOKEEPER-1387] - Wrong epoch file created +
[ZOOKEEPER-1388] - Client side 'PathValidation' is missing for the multi-transaction api. +
[ZOOKEEPER-1448] - Node+Quota creation in transaction log can crash leader startup +
[ZOOKEEPER-1462] - Read-only server does not initialize database properly +
[ZOOKEEPER-1474] - Cannot build Zookeeper with IBM Java: use of Sun MXBean classes +
[ZOOKEEPER-1478] - Small bug in QuorumTest.testFollowersStartAfterLeader( ) +
[ZOOKEEPER-1495] - ZK client hangs when using a function not available on the server. +
[ZOOKEEPER-1513] - "Unreasonable length" exception while starting a server. +
[ZOOKEEPER-1535] - ZK Shell/Cli re-executes last command on exit +
[ZOOKEEPER-1548] - Cluster fails election loop in new and interesting way +
[ZOOKEEPER-1551] - Observers ignore txns that come after snapshot and UPTODATE +
[ZOOKEEPER-1553] - Findbugs configuration is missing some dependencies +
[ZOOKEEPER-1554] - Can't use zookeeper client without SASL +
[ZOOKEEPER-1557] - jenkins jdk7 test failure in testBadSaslAuthNotifiesWatch +
[ZOOKEEPER-1562] - Memory leaks in zoo_multi API +
[ZOOKEEPER-1573] - Unable to load database due to missing parent node +
[ZOOKEEPER-1578] - org.apache.zookeeper.server.quorum.Zab1_0Test failed due to hard code with 33556 port +
[ZOOKEEPER-1581] - change copyright in notice to 2012 +
[ZOOKEEPER-1596] - Zab1_0Test should ensure that the file is closed +
[ZOOKEEPER-1597] - Windows build failing +
[ZOOKEEPER-1599] - 3.3 server cannot join 3.4 quorum +
[ZOOKEEPER-1603] - StaticHostProviderTest testUpdateClientMigrateOrNot hangs +
[ZOOKEEPER-1606] - intermittent failures in ZkDatabaseCorruptionTest on jenkins +
[ZOOKEEPER-1610] - Some classes are using == or != to compare Long/String objects instead of .equals() +
[ZOOKEEPER-1613] - The documentation still points to 2008 in the copyright notice +
[ZOOKEEPER-1622] - session ids will be negative in the year 2022 +
[ZOOKEEPER-1624] - PrepRequestProcessor abort multi-operation incorrectly +
[ZOOKEEPER-1629] - testTransactionLogCorruption occasionally fails +
[ZOOKEEPER-1632] - fix memory leaks in cli_st +
[ZOOKEEPER-1633] - Introduce a protocol version to connection initiation message +
[ZOOKEEPER-1642] - Leader loading database twice +
[ZOOKEEPER-1645] - ZooKeeper OSGi package imports not complete +
[ZOOKEEPER-1646] - mt c client tests fail on Ubuntu Raring +
[ZOOKEEPER-1647] - OSGi package import/export changes not applied to bin-jar +
[ZOOKEEPER-1648] - Fix WatcherTest in JDK7 +
[ZOOKEEPER-1653] - zookeeper fails to start because of inconsistent epoch +
[ZOOKEEPER-1657] - Increased CPU usage by unnecessary SASL checks +
[ZOOKEEPER-1663] - scripts don't work when path contains spaces +
[ZOOKEEPER-1667] - Watch event isn't handled correctly when a client reestablish to a server +
[ZOOKEEPER-1696] - Fail to run zookeeper client on Weblogic application server +
[ZOOKEEPER-1697] - large snapshots can cause continuous quorum failure +
[ZOOKEEPER-1702] - ZooKeeper client may write operation packets before receiving successful response to connection request, can cause TCP RST +
[ZOOKEEPER-1706] - Typo in Double Barriers example +
[ZOOKEEPER-1711] - ZooKeeper server binds to all ip addresses for leader election and broadcast +
[ZOOKEEPER-1713] - wrong time calculation in zkfuse.cc +
[ZOOKEEPER-1714] - perl client segfaults if ZOO_READ_ACL_UNSAFE constant is used +
[ZOOKEEPER-1719] - zkCli.sh, zkServer.sh and zkEnv.sh regression caused by ZOOKEEPER-1663 +
[ZOOKEEPER-1731] - Unsynchronized access to ServerCnxnFactory.connectionBeans results in deadlock +
[ZOOKEEPER-1732] - ZooKeeper server unable to join established ensemble +
[ZOOKEEPER-1733] - FLETest#testLE is flaky on windows boxes +
[ZOOKEEPER-1744] - clientPortAddress breaks "zkServer.sh status" +
[ZOOKEEPER-1745] - Wrong Import-Package in the META-INF/MANIFEST.MF of zookeeper 3.4.5 bundle +
[ZOOKEEPER-1750] - Race condition producing NPE in NIOServerCnxn.toString +
[ZOOKEEPER-1751] - ClientCnxn#run could miss the second ping or connection get dropped before a ping +
[ZOOKEEPER-1753] - ClientCnxn is not properly releasing the resources, which are used to ping RwServer +
[ZOOKEEPER-1754] - Read-only server allows to create znode +
[ZOOKEEPER-1755] - Concurrent operations of four letter 'dump' ephemeral command and killSession causing NPE +
[ZOOKEEPER-1756] - zookeeper_interest() in C client can return a timeval of 0 +
[ZOOKEEPER-1764] - ZooKeeper attempts at SASL eventhough it shouldn't +
[ZOOKEEPER-1765] - Update code conventions link on "How to contribute" page +
[ZOOKEEPER-1770] - NullPointerException in SnapshotFormatter +
[ZOOKEEPER-1774] - QuorumPeerMainTest fails consistently with "complains about host" assertion failure +
[ZOOKEEPER-1775] - Ephemeral nodes not present in one of the members of the ensemble +
[ZOOKEEPER-1776] - Ephemeral nodes not present in one of the members of the ensemble +
[ZOOKEEPER-1781] - ZooKeeper Server fails if snapCount is set to 1 +
[ZOOKEEPER-1786] - ZooKeeper data model documentation is incorrect +
[ZOOKEEPER-1790] - Deal with special ObserverId in QuorumCnxManager.receiveConnection +
[ZOOKEEPER-1798] - Fix race condition in testNormalObserverRun +
[ZOOKEEPER-1799] - SaslAuthFailDesignatedClientTest.testAuth fails frequently on SUSE +
[ZOOKEEPER-1805] - "Don't care" value in ZooKeeper election breaks rolling upgrades +
[ZOOKEEPER-1811] - The ZooKeeperSaslClient service name principal is hardcoded to "zookeeper" +
[ZOOKEEPER-1812] - ZooInspector reconnection always fails if first connection fails +
[ZOOKEEPER-1821] - very ugly warning when compiling load_gen.c +
[ZOOKEEPER-1839] - Deadlock in NettyServerCnxn +
[ZOOKEEPER-1844] - TruncateTest fails on windows +
[ZOOKEEPER-1845] - FLETest.testLE fails on windows +
[ZOOKEEPER-1850] - cppunit test testNonexistingHost in TestZookeeperInit is failing on Unbuntu +
[ZOOKEEPER-2015] - I found memory leak in zk client for c++ +

+ +

Improvement +

[ZOOKEEPER-1019] - zkfuse doesn't list dependency on boost in README +
[ZOOKEEPER-1096] - Leader communication should listen on specified IP, not wildcard address +
[ZOOKEEPER-1324] - Remove Duplicate NEWLEADER packets from the Leader to the Follower. +
[ZOOKEEPER-1552] - Enable sync request processor in Observer +
[ZOOKEEPER-1564] - Allow JUnit test build with IBM Java +
[ZOOKEEPER-1583] - Document maxClientCnxns in conf/zoo_sample.cfg +
[ZOOKEEPER-1584] - Adding mvn-install target for deploying the zookeeper artifacts to .m2 repository. +
[ZOOKEEPER-1598] - Ability to support more digits in the version string +
[ZOOKEEPER-1615] - minor typos in ZooKeeper Programmer's Guide web page +
[ZOOKEEPER-1627] - Add org.apache.zookeeper.common to exported packages in OSGi MANIFEST headers +
[ZOOKEEPER-1666] - Avoid Reverse DNS lookup if the hostname in connection string is literal IP address. +
[ZOOKEEPER-1715] - Upgrade netty version +
[ZOOKEEPER-1758] - Add documentation for zookeeper.observer.syncEnabled flag +
[ZOOKEEPER-1771] - ZooInspector authentication +

+ +

Task +

[ZOOKEEPER-1430] - add maven deploy support to the build +

+ +

Test +

[ZOOKEEPER-1980] - how to draw the figure"ZooKeeper Throughput as the Read-Write Ratio Varies" ? +

+ + Release Notes - ZooKeeper - Version 3.4.5 + +

Bug +

[ZOOKEEPER-1376] - zkServer.sh does not correctly check for $SERVER_JVMFLAGS +
[ZOOKEEPER-1550] - ZooKeeperSaslClient does not finish anonymous login on OpenJDK +
[ZOOKEEPER-1560] - Zookeeper client hangs on creation of large nodes +
[ZOOKEEPER-1686] - Publish ZK 3.4.5 test jar +

+ +

Improvement +

[ZOOKEEPER-1640] - dynamically load command objects in zk +

+ + Release Notes - ZooKeeper - Version 3.4.4 + +

Bug +

[ZOOKEEPER-1048] - addauth command does not work in cli_mt/cli_st +
[ZOOKEEPER-1163] - Memory leak in zk_hashtable.c:do_insert_watcher_object() +
[ZOOKEEPER-1210] - Can't build ZooKeeper RPM with RPM >= 4.6.0 (i.e. on RHEL 6 and Fedora >= 10) +
[ZOOKEEPER-1236] - Security uses proprietary Sun APIs +
[ZOOKEEPER-1277] - servers stop serving when lower 32bits of zxid roll over +
[ZOOKEEPER-1303] - Observer LearnerHandlers are not removed from Leader collection. +
[ZOOKEEPER-1307] - zkCli.sh is exiting when an Invalid ACL exception is thrown from setACL command through client +
[ZOOKEEPER-1318] - In Python binding, get_children (and get and exists, and probably others) with expired session doesn't raise exception properly +
[ZOOKEEPER-1339] - C clien doesn't build with --enable-debug +
[ZOOKEEPER-1344] - ZooKeeper client multi-update command is not considering the Chroot request +
[ZOOKEEPER-1354] - AuthTest.testBadAuthThenSendOtherCommands fails intermittently +
[ZOOKEEPER-1361] - Leader.lead iterates over 'learners' set without proper synchronisation +
[ZOOKEEPER-1380] - zkperl: _zk_release_watch doesn't remove items properly from the watch list +
[ZOOKEEPER-1384] - test-cppunit overrides LD_LIBRARY_PATH and fails if gcc is in non-standard location +
[ZOOKEEPER-1386] - avoid flaky URL redirection in "ant javadoc" : replace "http://java.sun.com/javase/6/docs/api/" with "http://download.oracle.com/javase/6/docs/api/" +
[ZOOKEEPER-1395] - node-watcher double-free redux +
[ZOOKEEPER-1403] - zkCli.sh script quoting issue +
[ZOOKEEPER-1406] - dpkg init scripts don't restart - missing check_priv_sep_dir +
[ZOOKEEPER-1412] - java client watches inconsistently triggered on reconnect +
[ZOOKEEPER-1419] - Leader election never settles for a 5-node cluster +
[ZOOKEEPER-1427] - Writing to local files is done non-atomically +
[ZOOKEEPER-1431] - zkpython: async calls leak memory +
[ZOOKEEPER-1437] - Client uses session before SASL authentication complete +
[ZOOKEEPER-1463] - external inline function is not compatible with C99 +
[ZOOKEEPER-1465] - Cluster availability following new leader election takes a long time with large datasets - is correlated to dataset size +
[ZOOKEEPER-1466] - QuorumCnxManager.shutdown missing synchronization +
[ZOOKEEPER-1471] - Jute generates invalid C++ code +
[ZOOKEEPER-1483] - Fix leader election recipe documentation +
[ZOOKEEPER-1489] - Data loss after truncate on transaction log +
[ZOOKEEPER-1490] - If the configured log directory does not exist zookeeper will not start. Better to create the directory and start +
[ZOOKEEPER-1493] - C Client: zookeeper_process doesn't invoke completion callback if zookeeper_close has been called +
[ZOOKEEPER-1494] - C client: socket leak after receive timeout in zookeeper_interest() +
[ZOOKEEPER-1496] - Ephemeral node not getting cleared even after client has exited +
[ZOOKEEPER-1501] - Nagios plugin always returns OK when it cannot connect to zookeeper +
[ZOOKEEPER-1514] - FastLeaderElection - leader ignores the round information when joining a quorum +
[ZOOKEEPER-1521] - LearnerHandler initLimit/syncLimit problems specifying follower socket timeout limits +
[ZOOKEEPER-1522] - intermittent failures in Zab test due to NPE in recursiveDelete test function +
[ZOOKEEPER-1536] - c client : memory leak in winport.c +
[ZOOKEEPER-1686] - Publish ZK 3.4.5 test jar +

+ +

Improvement +

[ZOOKEEPER-1321] - Add number of client connections metric in JMX and srvr +
[ZOOKEEPER-1377] - add support for dumping a snapshot file content (similar to LogFormatter) +
[ZOOKEEPER-1389] - it would be nice if start-foreground used exec $JAVA in order to get rid of the intermediate shell process +
[ZOOKEEPER-1390] - some expensive debug code not protected by a check for debug +
[ZOOKEEPER-1433] - improve ZxidRolloverTest (test seems flakey) +
[ZOOKEEPER-1454] - Document how to run autoreconf if cppunit is installed in a non-standard directory +
[ZOOKEEPER-1481] - allow the C cli to run exists with a watcher +
[ZOOKEEPER-1497] - Allow server-side SASL login with JAAS configuration to be programmatically set (rather than only by reading JAAS configuration file) +
[ZOOKEEPER-1503] - remove redundant JAAS configuration code in SaslAuthTest and SaslAuthFailTest +
[ZOOKEEPER-1510] - Should not log SASL errors for non-secure usage +
[ZOOKEEPER-1565] - Allow ClientTest.java build with IBM Java +
[ZOOKEEPER-1570] - Allow QuorumBase.java build with IBM Java +
[ZOOKEEPER-1571] - Allow QuorumUtil.java build with IBM Java +

+ +

Task +

[ZOOKEEPER-1450] - Backport ZOOKEEPER-1294 fix to 3.4 and 3.3 +

+ + Release Notes - ZooKeeper - Version 3.4.3 + +

Bug +

[ZOOKEEPER-973] - bind() could fail on Leader because it does not setReuseAddress on its ServerSocket +
[ZOOKEEPER-1089] - zkServer.sh status does not work due to invalid option of nc +
[ZOOKEEPER-1327] - there are still remnants of hadoop urls +
[ZOOKEEPER-1336] - javadoc for multi is confusing, references functionality that doesn't seem to exist +
[ZOOKEEPER-1338] - class cast exceptions may be thrown by multi ErrorResult class (invalid equals) +
[ZOOKEEPER-1340] - multi problem - typical user operations are generating ERROR level messages in the server +
[ZOOKEEPER-1343] - getEpochToPropose should check if lastAcceptedEpoch is greater or equal than epoch +
[ZOOKEEPER-1348] - Zookeeper 3.4.2 C client incorrectly reports string version of 3.4.1 +
[ZOOKEEPER-1351] - invalid test verification in MultiTransactionTest +
[ZOOKEEPER-1352] - server.InvalidSnapshotTest is using connection timeouts that are too short +
[ZOOKEEPER-1353] - C client test suite fails consistently +
[ZOOKEEPER-1367] - Data inconsistencies and unexpired ephemeral nodes after cluster restart +
[ZOOKEEPER-1370] - Add logging changes in Release Notes needed for clients because of ZOOKEEPER-850. +
[ZOOKEEPER-1373] - Hardcoded SASL login context name clashes with Hadoop security configuration override +
[ZOOKEEPER-1374] - C client multi-threaded test suite fails to compile on ARM architectures. +

+ +

Improvement +

[ZOOKEEPER-1322] - Cleanup/fix logging in Quorum code. +
[ZOOKEEPER-1345] - Add a .gitignore file with general exclusions and Eclipse project files excluded +

+ +

Test +

[ZOOKEEPER-1337] - multi's "Transaction" class is missing tests. +

+ + Release Notes - ZooKeeper - Version 3.4.2 + +

Bug +

[ZOOKEEPER-1323] - c client doesn't compile on freebsd +
[ZOOKEEPER-1333] - NPE in FileTxnSnapLog when restarting a cluster +

+ + Release Notes - ZooKeeper - Version 3.4.1 + +

Bug +

[ZOOKEEPER-1269] - Multi deserialization issues +
[ZOOKEEPER-1305] - zookeeper.c:prepend_string func can dereference null ptr +
[ZOOKEEPER-1311] - ZooKeeper test jar is broken +
[ZOOKEEPER-1315] - zookeeper_init always reports sessionPasswd=<hidden> +
[ZOOKEEPER-1316] - zookeeper_init leaks memory if chroot is just '/' +
[ZOOKEEPER-1317] - Possible segfault in zookeeper_init +
[ZOOKEEPER-1319] - Missing data after restarting+expanding a cluster +
[ZOOKEEPER-1332] - Zookeeper data is not in sync with quorum in the mentioned scenario +

+ + + Release Notes - ZooKeeper - Version 3.4.0 + +

Sub-task +

[ZOOKEEPER-784] - server-side functionality for read-only mode +
[ZOOKEEPER-798] - Fixup loggraph for FLE changes +
[ZOOKEEPER-839] - deleteRecursive does not belong to the other methods +
[ZOOKEEPER-908] - Remove code duplication and inconsistent naming in ClientCnxn.Packet creation +
[ZOOKEEPER-909] - Extract NIO specific code from ClientCnxn +
[ZOOKEEPER-966] - Client side for multi +
[ZOOKEEPER-967] - Server side decoding and function dispatch +
[ZOOKEEPER-968] - Database multi-update +
[ZOOKEEPER-1042] - Generate zookeeper test jar for maven installation +
[ZOOKEEPER-1081] - modify leader/follower code to correctly deal with new leader +
[ZOOKEEPER-1082] - modify leader election to correctly take into account current epoch +
[ZOOKEEPER-1150] - fix for this patch to compile on windows... +
[ZOOKEEPER-1160] - test timeouts are too small +
[ZOOKEEPER-1201] - Clean SaslServerCallbackHandler.java +
[ZOOKEEPER-1246] - Dead code in PrepRequestProcessor catch Exception block +
[ZOOKEEPER-1282] - Learner.java not following Zab 1.0 protocol - setCurrentEpoch should be done upon receipt of NEWLEADER (before acking it) and not upon receipt of UPTODATE +
[ZOOKEEPER-1291] - AcceptedEpoch not updated at leader before it proposes the epoch to followers +

+ +

Bug +

[ZOOKEEPER-335] - zookeeper servers should commit the new leader txn to their logs. +
[ZOOKEEPER-418] - Need nifty zookeeper browser +
[ZOOKEEPER-603] - zkpython should do a better job of freeing memory under error conditions +
[ZOOKEEPER-662] - Too many CLOSE_WAIT socket state on a server +
[ZOOKEEPER-690] - AsyncTestHammer test fails on hudson. +
[ZOOKEEPER-719] - Add throttling to BookKeeper client +
[ZOOKEEPER-720] - Use zookeeper-{version}-sources.jar instead of zookeeper-{version}-src.jar to publish sources in the Maven repository +
[ZOOKEEPER-722] - zkServer.sh uses sh's builtin echo on BSD, behaves incorrectly. +
[ZOOKEEPER-731] - Zookeeper#delete , #create - async versions miss a verb in the javadoc +
[ZOOKEEPER-734] - QuorumPeerTestBase.java and ZooKeeperServerMainTest.java do not handle windows path correctly +
[ZOOKEEPER-735] - cppunit test testipv6 assumes that the machine is ipv6 enabled. +
[