+ +

+ + +

+ +

+ + +

+ + + + + +

+ PDF +

ZooKeeper 3.4.7 Release Notes

+Changes Since ZooKeeper 3.4.6 +
+Changes Since ZooKeeper 3.4.5 +
+Changes Since ZooKeeper 3.4.4 +
+Changes Since ZooKeeper 3.4.3 +
+Changes Since ZooKeeper 3.4.2 +
+Changes Since ZooKeeper 3.4.1 +
+Changes Since ZooKeeper 3.4.0 +
+Changes Since ZooKeeper 3.3.0 +

+ + + + + +

+These release notes include new developer and user facing incompatibilities, features, and major improvements. +

+ + +

+
+Changes +
+

+ + +

Changes Since 3.4.6

+ +

+ + + +Changes Since ZooKeeper 3.4.6 + +

Sub-task

+ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +

Changes Since ZooKeeper 3.4.6
Issue	Notes
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

+ +

+ + + +Changes Since ZooKeeper 3.4.6 + +

Bug

Changes Since ZooKeeper 3.4.6
Issue	Notes
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	quot;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-2211	PurgeTxnLog does not correctly purge when snapshots and logs are at different locations
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

+ +

+ + + +Changes Since ZooKeeper 3.4.6 + +

Improvement

+ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +

Changes Since ZooKeeper 3.4.6
Issue	Notes
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-2240	Make the three-node minimum more explicit in documentation and on website
ZOOKEEPER-2315	Change client connect zk service timeout log level from Info to Warn level

+ + +

Changes Since 3.4.5

+ + + +Changes Since ZooKeeper 3.4.5 + + +

Sub-task +

+ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +

Changes Since ZooKeeper 3.4.5
Issue	Notes
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 +

+ + +

+ + + +Changes Since ZooKeeper 3.4.5 + +

Bug +

+ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +

Changes Since ZooKeeper 3.4.5
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-877 +	zkpython does not work with python3.1 +
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-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 +

+ + +

+ + + +Changes Since ZooKeeper 3.4.5 + +

Improvement +

+ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +

Changes Since ZooKeeper 3.4.5
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 +

+ + +

+ + + +Changes Since ZooKeeper 3.4.5 + +

Task +

+ + + + +

Changes Since ZooKeeper 3.4.5
ZOOKEEPER-1430 +	add maven deploy support to the build +

+ + + +

Changes Since 3.4.4

+ + + +Changes Since ZooKeeper 3.4.4 + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +

Changes Since ZooKeeper 3.4.4
Issue	Notes
+ + ZOOKEEPER-1550 +	+ZooKeeperSaslClient does not finish anonymous login on OpenJDK +
+ + ZOOKEEPER-1376 +	+zkServer.sh does not correctly check for $SERVER_JVMFLAGS +
+ + ZOOKEEPER-1560 +	+Zookeeper client hangs on creation of large nodes +

+ + +

Changes Since 3.4.3

+ + + +Changes Since ZooKeeper 3.4.3 + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +

Changes Since ZooKeeper 3.4.3
Issue	Notes
+ + ZOOKEEPER-1496 +	+Ephemeral node not getting cleared even after client has exited +
+ + 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 > +
+ + ZOOKEEPER-1236 +	+Security uses proprietary Sun APIs +
+ + ZOOKEEPER-1256 +	+ClientPortBindTest is failing on Mac OS X +
+ + ZOOKEEPER-1277 +	+servers stop serving when lower 32bits of zxid roll over +
+ + 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-1480 +	+ClientCnxn(1161) can't get the current zk server add, so that - Session 0x for server null, unexpected error +
+ + 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-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-1450 +	+Backport ZOOKEEPER-1294 fix to 3.4 and 3.3 +

+ + + +

Changes Since ZooKeeper 3.4.2

+ + + +Changes Since ZooKeeper 3.4.2 + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +

Changes Since ZooKeeper 3.4.2
Issue	Notes
+ + ZOOKEEPER-1089 +	+zkServer.sh status does not work due to invalid option of nc. +
+ + ZOOKEEPER-1345 +	+Add a .gitignore file with general exclusions and Eclipse project files excluded. +
+ + ZOOKEEPER-1343 +	+getEpochToPropose should check if lastAcceptedEpoch is greater or equal than epoch. +
+ + ZOOKEEPER-850 +	+ replaces log4j with slf4j code (also in contrib for bookkeeper, zooinspector, + rest,loggraph), added slf4j dependencies into several ivy.xml files. + You must add slf4j-api-1.6.1.jar and slf4j-log4j12-1.6.1.jar (bridge from sl4j + to log4j) to the classpath, if not using the standard scripts. + log4j remains as the final logger yet, there is still work to do: + remove programmatic access to the log4j api from certain classes + (which add appenders or configure log4j at runtime), or move them to contrib +
+ + ZOOKEEPER-1358 +	+In StaticHostProviderTest.java, testNextDoesNotSleepForZero tests that hostProvider.next(0) + doesn't sleep by checking that the latency of this call is less than 10sec +
+ + ZOOKEEPER-1351 +	+Invalid test verification in MultiTransactionTest. +
+ + ZOOKEEPER-973 +	+bind() could fail on Leader because it does not setReuseAddress on its ServerSocket. +
+ + ZOOKEEPER-1367 +	+ Data inconsistencies and unexpired ephemeral nodes after cluster restart. +
+ + ZOOKEEPER-1353 +	+ C client test suite fails consistently. +
+ + ZOOKEEPER-1373 +	+ Hardcoded SASL login context name clashes with Hadoop security + configuration override. +
+ + ZOOKEEPER-1352 +	+ server.InvalidSnapshotTest is using connection timeouts that + are too short. +
+ + ZOOKEEPER-1336 +	+ javadoc for multi is confusing, references functionality that doesn't + seem to exis +
+ + ZOOKEEPER-1340 +	+ multi problem - typical user operations are + generating ERROR level messages in the server. +
+ + ZOOKEEPER-1374 +	+ C client multi-threaded test suite fails to compile on ARM architectures. +
+ + ZOOKEEPER-1337 +	+ multi's "Transaction" class is missing tests. +
+ + ZOOKEEPER-1338 +	+ class cast exceptions may be thrown by multi ErrorResult class (invalid equals) +
+ + ZOOKEEPER-1322 +	+Cleanup/fix logging in Quorum code. +
+ + ZOOKEEPER-1327 +	+There are still remnants of hadoop urls. +

+ + + +

Changes Since ZooKeeper 3.4.1

+ + + +Changes Since ZooKeeper 3.4.1 + + + + + + + + + + + + + + + + + + + + + + + + + +

Changes Since ZooKeeper 3.4.1
Issue	Notes
+ + ZOOKEEPER-1333 +	+NPE in FileTxnSnapLog when restarting a cluster. +
+ + ZOOKEEPER-1323 +	+c client doesn't compile on freebsd +

+ + + +

Changes Since ZooKeeper 3.4.0

+ + + +Changes Since ZooKeeper 3.4.0 + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +

Changes Since ZooKeeper 3.4.0
Issue	Notes
+ + ZOOKEEPER-1311 +	+ZooKeeper test jar is broken +
+ + ZOOKEEPER-1305 +	+zookeeper.c:prepend_string func can dereference null ptr +
+ + ZOOKEEPER-1316 +	+zookeeper_init leaks memory if chroot is just '/' +
+ + ZOOKEEPER-1315 +	+ zookeeper_init always reports sessionPasswd=hidden +
+ + ZOOKEEPER-1317 +	+ Possible segfault in zookeeper_init. +
+ + ZOOKEEPER-1319 +	+ Missing data after restarting+expanding a cluster. +
+ + ZOOKEEPER-1269 +	+ Multi deserialization issues. +

+ + + +

Changes Since ZooKeeper 3.3.0

+ + + +Changes Since ZooKeeper 3.3.0 + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +

Changes Since ZooKeeper 3.3.0
Issue	Notes
+ Sub-Tasks +	+ +
+ + ZOOKEEPER-1239 +	+ add logging/stats to identify fsync stalls. +
+ + ZOOKEEPER-1208 +	+Ephemeral node not removed after the client session is long gone. +
+ + ZOOKEEPER-784 +	+ server-side functionality for read-only mode. This is not thoroughly tested. + Avoid using it in production. This is also at risk of being removed from + the feature set later. +
+ + 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 +
+ Bug Fixes +	+ +
+ + ZOOKEEPER-1268 +	+ problems with read only mode, intermittent test failures and ERRORs in the log. +
+ + ZOOKEEPER-1271 +	+ testEarlyLeaderAbandonment failing on solaris - clients not retrying connection. +
+ + ZOOKEEPER-1192 +	+Leader.waitForEpochAck() checks waitingForNewEpoch instead of checking electionFinished. +
+ + ZOOKEEPER-1246 +	+ Dead code in PrepRequestProcessor catch Exception block. +
+ + ZOOKEEPER-1264 +	+ FollowerResyncConcurrencyTest failing intermittently. +
+ + ZOOKEEPER-1270 +	+ testEarlyLeaderAbandonment failing intermittently, quorum formed, no serving. +
+ + ZOOKEEPER-1291 +	+ AcceptedEpoch not updated at leader before it proposes the epoch to followers. +
+ + 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-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. +
+ + ZOOKEEPER-737 +	+ some 4 letter words may fail with netcat (nc) +
+ + ZOOKEEPER-738 +	+ zookeeper.jute.h fails to compile with -pedantic +
+ + ZOOKEEPER-741 +	+ root level create on REST proxy fails +
+ + ZOOKEEPER-742 +	+ Deallocatng None on writes +
+ + ZOOKEEPER-746 +	+ learner outputs session id to log in dec (should be hex) +
+ + ZOOKEEPER-749 +	+ OSGi metadata not included in binary only jar +
+ + ZOOKEEPER-750 +	+ move maven artifacts into "dist-maven" subdir of the release (package target) +
+ + ZOOKEEPER-758 +	+ zkpython segfaults on invalid acl with missing key +
+ + ZOOKEEPER-763 +	+ Deadlock on close w/ zkpython / c client +
+ + ZOOKEEPER-764 +	+ Observer elected leader due to inconsistent voting view +
+ + ZOOKEEPER-766 +	+ forrest recipes docs don't mention the lock/queue recipe implementations available in the release +
+ + ZOOKEEPER-769 +	+ Leader can treat observers as quorum members +
+ + ZOOKEEPER-772 +	+ zkpython segfaults when watcher from async get children is invoked. +
+ + ZOOKEEPER-774 +	+ Recipes tests are slightly outdated: they do not compile against JUnit 4.8 +
+ + ZOOKEEPER-777 +	+ setting acl on a non existant node should return no node error +
+ + ZOOKEEPER-782 +	+ Incorrect C API documentation for Watches +
+ + ZOOKEEPER-783 +	+ committedLog in ZKDatabase is not properly synchronized +
+ + ZOOKEEPER-787 +	+ groupId in deployed pom is wrong +
+ + ZOOKEEPER-790 +	+ Last processed zxid set prematurely while establishing leadership +
+ + ZOOKEEPER-792 +	+ zkpython memory leak +
+ + ZOOKEEPER-794 +	+ Callbacks are not invoked when the client is closed +
+ + ZOOKEEPER-795 +	+ eventThread isn't shutdown after a connection "session expired" event coming +
+ + ZOOKEEPER-796 +	+ zkServer.sh should support an external PIDFILE variable +
+ + ZOOKEEPER-800 +	+ zoo_add_auth returns ZOK if zookeeper handle is in ZOO_CLOSED_STATE +
+ + ZOOKEEPER-804 +	+ c unit tests failing due to "assertion cptr failed" +
+ + ZOOKEEPER-813 +	+ maven install is broken due to incorrect organisation +
+ + ZOOKEEPER-814 +	+ monitoring scripts are missing apache license headers +
+ + ZOOKEEPER-820 +	+ update c unit tests to ensure "zombie" java server processes don't cause failure +
+ + ZOOKEEPER-822 +	+ Leader election taking a long time to complete +
+ + ZOOKEEPER-831 +	+ BookKeeper: Throttling improved for reads +
+ + ZOOKEEPER-844 +	+ handle auth failure in java client +
+ + ZOOKEEPER-846 +	+ zookeeper client doesn't shut down cleanly on the close call +
+ + ZOOKEEPER-854 +	+ BookKeeper does not compile due to changes in the ZooKeeper code +
+ + ZOOKEEPER-855 +	+ clientPortBindAddress should be clientPortAddress +
+ + ZOOKEEPER-861 +	+ Missing the test SSL certificate used for running junit tests. +
+ + ZOOKEEPER-867 +	+ ClientTest is failing on hudson - fd cleanup +
+ + ZOOKEEPER-870 +	+ Zookeeper trunk build broken. +
+ + ZOOKEEPER-874 +	+ FileTxnSnapLog.restore does not call listener +
+ + ZOOKEEPER-880 +	+ QuorumCnxManager$SendWorker grows without bounds +
+ + ZOOKEEPER-881 +	+ ZooKeeperServer.loadData loads database twice +
+ + ZOOKEEPER-882 +	+ Startup loads last transaction from snapshot +
+ + ZOOKEEPER-884 +	+ Remove LedgerSequence references from BookKeeper documentation and comments in tests +
+ + ZOOKEEPER-888 +	+ c-client / zkpython: Double free corruption on node watcher +
+ + ZOOKEEPER-893 +	+ ZooKeeper high cpu usage when invalid requests +
+ + ZOOKEEPER-897 +	+ C Client seg faults during close +
+ + ZOOKEEPER-898 +	+ C Client might not cleanup correctly during close +
+ + ZOOKEEPER-902 +	+ Fix findbug issue in trunk "Malicious code vulnerability" +
+ + ZOOKEEPER-904 +	+ super digest is not actually acting as a full superuser +
+ + ZOOKEEPER-913 +	+ Version parser fails to parse "3.3.2-dev" from build.xml. +
+ + ZOOKEEPER-917 +	+ Leader election selected incorrect leader +
+ + ZOOKEEPER-919 +	+ Ephemeral nodes remains in one of ensemble after deliberate SIGKILL +
+ + ZOOKEEPER-921 +	+ zkPython incorrectly checks for existence of required ACL elements +
+ + ZOOKEEPER-937 +	+ test -e not available on solaris /bin/sh +
+ + ZOOKEEPER-957 +	+ zkCleanup.sh doesn't do anything +
+ + ZOOKEEPER-958 +	+ Flag to turn off autoconsume in hedwig c++ client +
+ + ZOOKEEPER-961 +	+ Watch recovery after disconnection when connection string contains a prefix +
+ + ZOOKEEPER-962 +	+ leader/follower coherence issue when follower is receiving a DIFF +
+ + ZOOKEEPER-963 +	+ Make Forrest work with JDK6 +
+ + ZOOKEEPER-965 +	+ Need a multi-update command to allow multiple znodes to be updated safely +
+ + ZOOKEEPER-975 +	+ new peer goes in LEADING state even if ensemble is online +
+ + ZOOKEEPER-976 +	+ ZooKeeper startup script doesn't use JAVA_HOME +
+ + ZOOKEEPER-981 +	+ Hang in zookeeper_close() in the multi-threaded C client +
+ + ZOOKEEPER-983 +	+ running zkServer.sh start remotely using ssh hangs +
+ + ZOOKEEPER-985 +	+ Test BookieRecoveryTest fails on trunk. +
+ + ZOOKEEPER-1006 +	+ QuorumPeer "Address already in use" -- regression in 3.3.3 +
+ + ZOOKEEPER-1007 +	+ iarchive leak in C client +
+ + ZOOKEEPER-1013 +	+ zkServer.sh usage message should mention all startup options +
+ + ZOOKEEPER-1027 +	+ chroot not transparent in zoo_create() +
+ + ZOOKEEPER-1028 +	+ In python bindings, zookeeper.set2() should return a stat dict but instead returns None +
+ + ZOOKEEPER-1033 +	+ c client should install includes into INCDIR/zookeeper, not INCDIR/c-client-src +
+ + ZOOKEEPER-1034 +	+ perl bindings should automatically find the zookeeper c-client headers +
+ + ZOOKEEPER-1046 +	+ Creating a new sequential node results in a ZNODEEXISTS error +
+ + ZOOKEEPER-1049 +	+ Session expire/close flooding renders heartbeats to delay significantly +
+ + ZOOKEEPER-1051 +	+ SIGPIPE in Zookeeper 0.3.* when send'ing after cluster disconnection +
+ + ZOOKEEPER-1052 +	+ Findbugs warning in QuorumPeer.ResponderThread.run() +
+ + ZOOKEEPER-1055 +	+ check for duplicate ACLs in addACL() and create() +
+ + ZOOKEEPER-1058 +	+ fix typo in opToString for getData +
+ + ZOOKEEPER-1059 +	+ stat command isses on non-existing node causes NPE +
+ + ZOOKEEPER-1060 +	+ QuorumPeer takes a long time to shutdown +
+ + ZOOKEEPER-1061 +	+ Zookeeper stop fails if start called twice +
+ + ZOOKEEPER-1063 +	+ Dubious synchronization in Zookeeper and ClientCnxnSocketNIO classes +
+ + ZOOKEEPER-1068 +	+ Documentation and default config suggest incorrect location for Zookeeper state +
+ + ZOOKEEPER-1069 +	+ Calling shutdown() on a QuorumPeer too quickly can lead to a corrupt log +
+ + ZOOKEEPER-1073 +	+ address a documentation issue in ZOOKEEPER-1030 +
+ + ZOOKEEPER-1074 +	+ zkServer.sh is missing nohup/sleep, which are necessary for remote invocation +
+ + ZOOKEEPER-1076 +	+ some quorum tests are unnecessarily extending QuorumBase +
+ + ZOOKEEPER-1083 +	+ Javadoc for WatchedEvent not being generated +
+ + ZOOKEEPER-1086 +	+ zookeeper test jar has non mavenised dependency. +
+ + ZOOKEEPER-1087 +	+ ForceSync VM arguement not working when set to "no" +
+ + ZOOKEEPER-1088 +	+ delQuota does not remove the quota node and subesquent setquota calls for that path will fail +
+ + ZOOKEEPER-1090 +	+ Race condition while taking snapshot can lead to not restoring data tree correctly +
+ + ZOOKEEPER-1091 +	+ when the chrootPath of ClientCnxn is not null and the Watches of zooKeeper is not null and the method primeConnection(SelectionKey k) of ClientCnxn Occurred again for some reason ,then the wrong watcher clientPath is sended to server +
+ + ZOOKEEPER-1097 +	+ Quota is not correctly rehydrated on snapshot reload +
+ + ZOOKEEPER-1101 +	+ Upload zookeeper-test maven artifacts to maven repository. +
+ + ZOOKEEPER-1108 +	+ Various bugs in zoo_add_auth in C +
+ + ZOOKEEPER-1109 +	+ Zookeeper service is down when SyncRequestProcessor meets any exception. +
+ + ZOOKEEPER-1111 +	+ JMXEnv uses System.err instead of logging +
+ + ZOOKEEPER-1119 +	+ zkServer stop command incorrectly reading comment lines in zoo.cfg +
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