ZooKeeper 3.1.0 Release Notes
These release notes include new developer and user facing incompatibilities, features, and major improvements.
See 3.0 release notes and migration instructions if you are upgrading from version 2 of ZooKeeper (SourceForge) to version 3 or later.
Changes Since ZooKeeper 3.0.1
| Issue | Notes |
|---|---|
| Incompatibilities | |
| ZOOKEEPER-246 | review error code definition in both source and docs |
| New Feature | |
| ZOOKEEPER-135 | Fat jar build target |
| ZOOKEEPER-215 | expand system test environment |
| ZOOKEEPER-231 | Quotas in zookeeper |
| ZOOKEEPER-256 | support use of JMX to manage log4j configuration at runtime |
| ZOOKEEPER-276 | Bookkeeper contribution |
| Task | |
| ZOOKEEPER-210 | Require Java 6 |
| Bug | |
| ZOOKEEPER-16 | Need to do path validation |
| ZOOKEEPER-204 | SetWatches needs to be the first message after auth messages to the server |
| ZOOKEEPER-205 | Error on version-info when compiling from the tarball distribution |
| ZOOKEEPER-206 | documentation tab should contain the version number (and other small site changes) |
| ZOOKEEPER-208 | Zookeeper C client uses API that are not thread safe, causing crashes when multiple instances are active |
| ZOOKEEPER-209 | nullpointerexception if election port is not specified. |
| ZOOKEEPER-212 | snapshot is synchronous in 3.0 |
| ZOOKEEPER-213 | programmer guide C api docs are out of sync with latest zookeeper.h |
| ZOOKEEPER-218 | error in barrier recipe example code |
| ZOOKEEPER-219 | events.poll timeout in watcher test too short |
| ZOOKEEPER-221 | log message in ZkWatchManager.materialize missing conditional |
| ZOOKEEPER-226 | exists calls fails on server if node has null data |
| ZOOKEEPER-227 | gcc warning from recordio.h |
| ZOOKEEPER-228 | apache header missing in DBtest |
| ZOOKEEPER-232 | testablezookeeper file is missing apache licence headers. |
| ZOOKEEPER-240 | Yet another npe |
| ZOOKEEPER-241 | Build of a distro fails after clean target is run |
| ZOOKEEPER-242 | zookeeper c tests are faliling.. |
| ZOOKEEPER-245 | update readme/quickstart to be release tar, rather than source, based |
| ZOOKEEPER-247 | fix formatting of C API in ACL section of programmer guide |
| ZOOKEEPER-249 | QuorumPeer.getClientPort() always returns -1 |
| ZOOKEEPER-250 | isvalidsnapshot should handle the case of 0 snapshot files better. |
| ZOOKEEPER-251 | NullPointerException stopping and starting Zookeeper servers |
| ZOOKEEPER-252 | PurgeTxnLog is not handling the new dataDir directory structure |
| ZOOKEEPER-253 | documentation of DataWatcher state transition is misleading regarding auto watch reset on reconnect |
| ZOOKEEPER-254 | there is currently no way for a user to test session expiration in their code |
| ZOOKEEPER-255 | zoo_set() api does not return stat datastructure. |
| ZOOKEEPER-257 | Review logging level for WARN/ERROR log messages, some misclassified |
| ZOOKEEPER-258 | docs incorrectly state max client timeout as 60 seconds (it's based on server ticktime) |
| ZOOKEEPER-266 | KeeperState missing javadoc for values |
| ZOOKEEPER-267 | java client incorrectly generating syncdisconnected event when in disconnected state |
| ZOOKEEPER-268 | tostring on jute generated objects can cause NPE |
| ZOOKEEPER-272 | getChildren can fail for large numbers of children |
| ZOOKEEPER-273 | Zookeeper c client build should not depend on CPPUNIT |
| ZOOKEEPER-275 | Bug in FastLeaderElection |
| ZOOKEEPER-284 | JMX doesn't get the clientPort correctly |
| ZOOKEEPER-285 | the stat command does not return the correct mode |
| ZOOKEEPER-211 | Not all Mock tests are working |
| ZOOKEEPER-291 | regression for legacy code using KeeperException.Code constants (due to 246) |
| ZOOKEEPER-293 | zoo_set needs to be abi compatible (3.1 changed the signature), fix this by adding zoo_set2 |
| Improvement | |
| ZOOKEEPER-64 | We should log system env information when intializing client/server |
| ZOOKEEPER-149 | c interface is missing tests against java server (mock only) |
| ZOOKEEPER-177 | needed: docs for JMX |
| ZOOKEEPER-214 | add new "stat reset" command to server admin port |
| ZOOKEEPER-217 | handle errors when parsing config file, throw illegalargumentexception rather than exit() |
| ZOOKEEPER-220 | programming guide watches section should clarify server/clientlib role in data/child watch maint. |
| ZOOKEEPER-222 | print C client log message timestamp in human readable form |
| ZOOKEEPER-223 | default log4j root logger configuration has neg perf impact with no benefit, change default level to INFO |
| ZOOKEEPER-225 | c client should log an info message in zookeeper_init detailing connection parameters |
| ZOOKEEPER-229 | improve documentation regarding user's responsibility to cleanup datadir (snaps/logs) |
| ZOOKEEPER-230 | Improvements to FLE |
| ZOOKEEPER-234 | Eliminate using statics to initialize the sever. Should allow server to be more embeddable in OSGi enviorments. |
| ZOOKEEPER-243 | add SEQUENCE flag documentation to the programming guide |
| ZOOKEEPER-248 | QuorumPeer should use Map interface instead of HashMap implementation. |
| ZOOKEEPER-259 | cleanup the logging levels used (use the correct level) and messages generated |
| ZOOKEEPER-260 | document the recommended values for server id's |
| ZOOKEEPER-263 | document connection host:port as comma separated list in forrest docs |
| ZOOKEEPER-265 | remove (deprecate) unused NoSyncConnected from KeeperState |
| ZOOKEEPER-269 | connectionloss - add more documentation to detail |
| ZOOKEEPER-286 | Make GenerateLoad use InstanceContainers |
| ZOOKEEPER-289 | add debug messages to nioserver select loop. |
| ZOOKEEPER-161 | Content needed: "Designing a ZooKeeper Deployment" |
| ZOOKEEPER-69 | ZooKeeper logo |