Apache RocketMQ 4.8.0 发布

Download the 4.8.0 release

• Source: rocketmq-all-4.8.0-source-release.zip [PGP] [SHA512]
• Binary: rocketmq-all-4.8.0-bin-release.zip [PGP] [SHA512]

Feature

• [ISSUE-1846] – Change into pipeline manner to improve performance in dledger model .
• [ISSUE-690] – Support batch messages in dledger mode.

Improvement

• [ISSUE-1678] – Use thread safe CopyOnWriteArrayList for registerBrokerResultList.
• [ISSUE-1904] – Print warn log when flush timeout .
• [ISSUE-2082] – Use StringBuilder instead of StringBuffer.
• [ISSUE-2067] – Add logs when collecting disk space usage.
• [ISSUE-2146] – Add benchmark shutdown script and polish the benchmark.
• [ISSUE-2162] – Polish the description getBrokerConfig help info.
• [ISSUE-2180] – Polish the name server start script.
• [ISSUE-2170] – Use thread safe vector in BrokerOuterAPI.
• [ISSUE-1870] – Add Support for Java 9+ and compatible to previous Java version.
• [ISSUE-2217] – Upgrade dledger version.
• [ISSUE-2233] – Add Broker info in MQBrokerException for troubleshooting.
• [ISSUE-2245] – Expose config defaultBrokerId and connectBrokerByUser for DefaultLitePullConsumer.
• [ISSUE-2223] – Polish the selectOneMessageQueue method.
• [ISSUE-2239] – Add clientId in warn logs of MQClientInstance.
• [ISSUE-2300] – Support acl and msg trace in benchmark.
• [ISSUE-2152] – Add isRunning method in DefaultLitePullConsumer.
• [ISSUE-1770] – Add a query message trace command in mqadmin tool.
• [ISSUE-2152] – Use mock style in unit test for time-consuming.
• [ISSUE-2219] – Add some asynchronous API for batch messages.
• [ISSUE-2334] – Polish the log and response remark when service not available.
• [ISSUE-2325] – Use CopyOnWriteArrayList to avoid possible thread safety issues.
• [ISSUE-2366] – Polish transaction producer start script in benchmark.
• [ISSUE-2412] – Support adding tag when producing messages in benchmark.
• [ISSUE-2468] – Polish the DefaultLayout SimpleDateFormat pattern.
• [ISSUE-2491] – Temporary fix on Mac OS when pid greater than short type max value.

Bug

• [ISSUE-1473] – Fix wrong trace message’s clientHost.
• [ISSUE-1576] – Fix wrong logic in selectMessageQueue.
• [ISSUE-2165] – Slave read enable not work sometimes when cluster deployed on DLedger mode.
• [ISSUE-2172] – ArrayIndexOutOfBoundsException may throw when getRemoteAddressStrategy method.
• [ISSUE-2280] – Disk ratio return -1.0 when cluster deployed on DLedger mode.
• [ISSUE-2330] – Consumer can not extract user-define properties when using batch messages.
• [ISSUE-2338] – The parameter commitLeastPages is never used.
• [ISSUE-2374] – Fix the error in ip check.
• [ISSUE-2378] – NPE may throw when consumer shutdown in the ClientRemotingProcessor.
• [ISSUE-2421] – SelectMessageQueueByHash throw exception while hashcode is Integer.MIN.
• [ISSUE-2477] – The allocate method of AllocateMessageQueueByMachineRoom return error result.

Document and code style improvement

• [ISSUE-1435] – Fix document error about discarded mqadmin subcommand.
• [ISSUE-2192] – Typo fix in DefaultMQProducerImpl class.
• [ISSUE-2190] – Fix import mistakes in RocketMQ_Example.md.
• [ISSUE-2171] – Fix spell error in acl module.
• [ISSUE-2196] – Fix spell error and remove redundant code in acl module.
• [ISSUE-2176] – Remove redundant parameters in method.
• [ISSUE-2202] – Typo fix in README document.
• [ISSUE-2231] – Polish the format for user guide document.
• [ISSUE-2258] – Add a recommendation to PR template.
• [ISSUE-2272] – Typo fix in client consumer module.
• [ISSUE-2283] – Fix the spelling mistake in ProducerManager and some code optimization.
• [ISSUE-2299] – Typo fix in filter example document.
• [ISSUE-2402] – Add directory for rocketmq example document.
• [ISSUE-2415] – Delete useless code in client module.
• [ISSUE-2488] – Writing style optimization in architecture document.
• [ISSUE-2459] – Fix the error in best practice document.

转自 https://rocketmq.apache.org/release_notes/release-notes-4.8.0/