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Apache RocketMQ - Version 4.8.0",categories:["Release_Notes"],tags:["Release_Notes","RocketMQ","Version"]},i=void 0,l={permalink:"/zh/release-notes/2020/12/21/4.8.0",source:"@site/release-notes/2020-12-21-4.8.0.md",title:"Release Notes - Apache RocketMQ - Version 4.8.0",description:"* Source: rocketmq-all-4.8.0-source-release.zip [PGP] [SHA512]",date:"2020-12-21T00:00:00.000Z",formattedDate:"2020\u5e7412\u670821\u65e5",tags:[{label:"Release_Notes",permalink:"/zh/release-notes/tags/release-notes"},{label:"RocketMQ",permalink:"/zh/release-notes/tags/rocket-mq"},{label:"Version",permalink:"/zh/release-notes/tags/version"}],readingTime:3.325,hasTruncateMarker:!0,authors:[],frontMatter:{title:"Release Notes - Apache RocketMQ - Version 4.8.0",categories:["Release_Notes"],tags:["Release_Notes","RocketMQ","Version"]},prevItem:{title:"Release Notes - Apache RocketMQ Spring - Version 2.2.0",permalink:"/zh/release-notes/2021/01/08/release-notes-rocketmq-spring-2.2.0"},nextItem:{title:"Release Notes - 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Use StringBuilder instead of StringBuffer."),(0,s.yg)("li",null,"[",(0,s.yg)("a",{href:"https://github.com/apache/rocketmq/issues/2067"},"ISSUE-2067"),"] - Add logs when collecting disk space usage."),(0,s.yg)("li",null,"[",(0,s.yg)("a",{href:"https://github.com/apache/rocketmq/issues/2146"},"ISSUE-2146"),"] - Add benchmark shutdown script and polish the benchmark."),(0,s.yg)("li",null,"[",(0,s.yg)("a",{href:"https://github.com/apache/rocketmq/issues/2162"},"ISSUE-2162"),"] - Polish the description getBrokerConfig help info."),(0,s.yg)("li",null,"[",(0,s.yg)("a",{href:"https://github.com/apache/rocketmq/issues/2180"},"ISSUE-2180"),"] - Polish the name server start script."),(0,s.yg)("li",null,"[",(0,s.yg)("a",{href:"https://github.com/apache/rocketmq/issues/2170"},"ISSUE-2170"),"] - Use thread safe vector in BrokerOuterAPI."),(0,s.yg)("li",null,"[",(0,s.yg)("a",{href:"https://github.com/apache/rocketmq/issues/1870"},"ISSUE-1870"),"] - Add Support for Java 9+ and compatible to previous Java version."),(0,s.yg)("li",null,"[",(0,s.yg)("a",{href:"https://github.com/apache/rocketmq/issues/2217"},"ISSUE-2217"),"] - Upgrade dledger version."),(0,s.yg)("li",null,"[",(0,s.yg)("a",{href:"https://github.com/apache/rocketmq/issues/2233"},"ISSUE-2233"),"] - Add Broker info in MQBrokerException for troubleshooting."),(0,s.yg)("li",null,"[",(0,s.yg)("a",{href:"https://github.com/apache/rocketmq/issues/2245"},"ISSUE-2245"),"] - Expose config defaultBrokerId and connectBrokerByUser for DefaultLitePullConsumer."),(0,s.yg)("li",null,"[",(0,s.yg)("a",{href:"https://github.com/apache/rocketmq/issues/2223"},"ISSUE-2223"),"] - Polish the selectOneMessageQueue method."),(0,s.yg)("li",null,"[",(0,s.yg)("a",{href:"https://github.com/apache/rocketmq/issues/2239"},"ISSUE-2239"),"] - Add clientId in warn logs of MQClientInstance."),(0,s.yg)("li",null,"[",(0,s.yg)("a",{href:"https://github.com/apache/rocketmq/issues/2300"},"ISSUE-2300"),"] - Support acl and msg trace in benchmark."),(0,s.yg)("li",null,"[",(0,s.yg)("a",{href:"https://github.com/apache/rocketmq/issues/2152"},"ISSUE-2152"),"] - Add isRunning method in DefaultLitePullConsumer."),(0,s.yg)("li",null,"[",(0,s.yg)("a",{href:"https://github.com/apache/rocketmq/issues/1770"},"ISSUE-1770"),"] - Add a query message trace command in mqadmin tool."),(0,s.yg)("li",null,"[",(0,s.yg)("a",{href:"https://github.com/apache/rocketmq/issues/2152"},"ISSUE-2152"),"] - Use mock style in unit test for time-consuming."),(0,s.yg)("li",null,"[",(0,s.yg)("a",{href:"https://github.com/apache/rocketmq/issues/2219"},"ISSUE-2219"),"] - Add some asynchronous API for batch messages."),(0,s.yg)("li",null,"[",(0,s.yg)("a",{href:"https://github.com/apache/rocketmq/issues/2334"},"ISSUE-2334"),"] - Polish the log and response remark when service not available."),(0,s.yg)("li",null,"[",(0,s.yg)("a",{href:"https://github.com/apache/rocketmq/issues/2325"},"ISSUE-2325"),"] - Use CopyOnWriteArrayList to avoid possible thread safety issues."),(0,s.yg)("li",null,"[",(0,s.yg)("a",{href:"https://github.com/apache/rocketmq/issues/2366"},"ISSUE-2366"),"] - Polish transaction producer start script in benchmark."),(0,s.yg)("li",null,"[",(0,s.yg)("a",{href:"https://github.com/apache/rocketmq/issues/2412"},"ISSUE-2412"),"] - Support adding tag when producing messages in benchmark."),(0,s.yg)("li",null,"[",(0,s.yg)("a",{href:"https://github.com/apache/rocketmq/issues/2468"},"ISSUE-2468"),"] - Polish the DefaultLayout SimpleDateFormat pattern."),(0,s.yg)("li",null,"[",(0,s.yg)("a",{href:"https://github.com/apache/rocketmq/issues/2491"},"ISSUE-2491"),"] - Temporary fix on Mac OS when pid greater than short type max value.")),(0,s.yg)("h2",{id:"bug"},"Bug"),(0,s.yg)("ul",null,(0,s.yg)("li",null,"[",(0,s.yg)("a",{href:"https://github.com/apache/rocketmq/issues/1473"},"ISSUE-1473"),"] - Fix wrong trace message's clientHost."),(0,s.yg)("li",null,"[",(0,s.yg)("a",{href:"https://github.com/apache/rocketmq/issues/1576"},"ISSUE-1576"),"] - Fix wrong logic in selectMessageQueue."),(0,s.yg)("li",null,"[",(0,s.yg)("a",{href:"https://github.com/apache/rocketmq/issues/2165"},"ISSUE-2165"),"] - Slave read enable not work sometimes when cluster deployed on DLedger mode."),(0,s.yg)("li",null,"[",(0,s.yg)("a",{href:"https://github.com/apache/rocketmq/issues/2165"},"ISSUE-2172"),"] - ArrayIndexOutOfBoundsException may throw when getRemoteAddressStrategy method."),(0,s.yg)("li",null,"[",(0,s.yg)("a",{href:"https://github.com/apache/rocketmq/issues/2280"},"ISSUE-2280"),"] - Disk ratio return -1.0 when cluster deployed on DLedger mode."),(0,s.yg)("li",null,"[",(0,s.yg)("a",{href:"https://github.com/apache/rocketmq/issues/2330"},"ISSUE-2330"),"] - Consumer can not extract user-define properties when using batch messages."),(0,s.yg)("li",null,"[",(0,s.yg)("a",{href:"https://github.com/apache/rocketmq/issues/2338"},"ISSUE-2338"),"] - The parameter commitLeastPages is never used."),(0,s.yg)("li",null,"[",(0,s.yg)("a",{href:"https://github.com/apache/rocketmq/issues/2374"},"ISSUE-2374"),"] - Fix the error in ip check."),(0,s.yg)("li",null,"[",(0,s.yg)("a",{href:"https://github.com/apache/rocketmq/issues/2378"},"ISSUE-2378"),"] - NPE may throw when consumer shutdown in the ClientRemotingProcessor."),(0,s.yg)("li",null,"[",(0,s.yg)("a",{href:"https://github.com/apache/rocketmq/issues/2421"},"ISSUE-2421"),"] - SelectMessageQueueByHash throw exception while hashcode is Integer.MIN."),(0,s.yg)("li",null,"[",(0,s.yg)("a",{href:"https://github.com/apache/rocketmq/issues/2477"},"ISSUE-2477"),"] - The allocate method of AllocateMessageQueueByMachineRoom return error result.")),(0,s.yg)("h2",{id:"document-and-code-style-improvement"},"Document and code style improvement"),(0,s.yg)("ul",null,(0,s.yg)("li",null,"[",(0,s.yg)("a",{href:"https://github.com/apache/rocketmq/issues/1435"},"ISSUE-1435"),"] - Fix document error about discarded mqadmin subcommand."),(0,s.yg)("li",null,"[",(0,s.yg)("a",{href:"https://github.com/apache/rocketmq/issues/2192"},"ISSUE-2192"),"] - Typo fix in DefaultMQProducerImpl class."),(0,s.yg)("li",null,"[",(0,s.yg)("a",{href:"https://github.com/apache/rocketmq/issues/2190"},"ISSUE-2190"),"] - Fix import mistakes in RocketMQ_Example.md."),(0,s.yg)("li",null,"[",(0,s.yg)("a",{href:"https://github.com/apache/rocketmq/issues/2171"},"ISSUE-2171"),"] - Fix spell error in acl module."),(0,s.yg)("li",null,"[",(0,s.yg)("a",{href:"https://github.com/apache/rocketmq/issues/2196"},"ISSUE-2196"),"] - Fix spell error and remove redundant code in acl module."),(0,s.yg)("li",null,"[",(0,s.yg)("a",{href:"https://github.com/apache/rocketmq/issues/2176"},"ISSUE-2176"),"] - Remove redundant parameters in method."),(0,s.yg)("li",null,"[",(0,s.yg)("a",{href:"https://github.com/apache/rocketmq/pull/2202"},"ISSUE-2202"),"] - Typo fix in README document."),(0,s.yg)("li",null,"[",(0,s.yg)("a",{href:"https://github.com/apache/rocketmq/issues/2231"},"ISSUE-2231"),"] - Polish the format for user guide document."),(0,s.yg)("li",null,"[",(0,s.yg)("a",{href:"https://github.com/apache/rocketmq/pull/2258"},"ISSUE-2258"),"] - Add a recommendation to PR template."),(0,s.yg)("li",null,"[",(0,s.yg)("a",{href:"https://github.com/apache/rocketmq/issues/2272"},"ISSUE-2272"),"] - Typo fix in client consumer module."),(0,s.yg)("li",null,"[",(0,s.yg)("a",{href:"https://github.com/apache/rocketmq/issues/2283"},"ISSUE-2283"),"] - Fix the spelling mistake in ProducerManager and some code optimization."),(0,s.yg)("li",null,"[",(0,s.yg)("a",{href:"https://github.com/apache/rocketmq/issues/2299"},"ISSUE-2299"),"] - Typo fix in filter example document."),(0,s.yg)("li",null,"[",(0,s.yg)("a",{href:"https://github.com/apache/rocketmq/issues/2402"},"ISSUE-2402"),"] - Add directory for rocketmq example document."),(0,s.yg)("li",null,"[",(0,s.yg)("a",{href:"https://github.com/apache/rocketmq/issues/2415"},"ISSUE-2415"),"] - Delete useless code in client module."),(0,s.yg)("li",null,"[",(0,s.yg)("a",{href:"https://github.com/apache/rocketmq/issues/2488"},"ISSUE-2488"),"] - Writing style optimization in architecture document."),(0,s.yg)("li",null,"[",(0,s.yg)("a",{href:"https://github.com/apache/rocketmq/issues/2459"},"ISSUE-2459"),"] - Fix the error in best practice document.")))}m.isMDXComponent=!0}}]); |