Enhancements:

• Support "rest" insert mode in the global part of JSON file for taosBenchmark
• Topic access permission can be controlled specifically
• Improved logging in case taosd is killed
• Cleanup connection cache automatically after client is closed for a while
• Query performance optimization

Fixed Bugs:

• Output of taosbenchmark is wrong on Windows
• Cluster state is OK but dnode is shown as offline in log
• Output of "show vgroups" is incorrect
• OS type reported from TDengine on macOS is empty
• Command "alter database replica 3" took too long time
• Data loss after "alter database replica 3"
• taos crash in tsdb
• Resulting table of stream processing can't be queried
• Memory leak of taosX
• taos shell "auto tab" can't match "show table distributed"
• Some taosd crash problems

What's Changed

• merge from 3.0.2.0 to main by @guanshengliang in https://github.com/taosdata/TDengine/pull/18881
• fix: fix taosd crash caused by assert by @glzhao89 in https://github.com/taosdata/TDengine/pull/18893
• enh: shielding sql command 'alter database strict' by @xiao-yu-wang in https://github.com/taosdata/TDengine/pull/18900
• fix: disk full recovery issue by @dapan1121 in https://github.com/taosdata/TDengine/pull/18904
• fix: create stream error by @xiao-yu-wang in https://github.com/taosdata/TDengine/pull/18902
• fix: should not check dnode status in follower by @guanshengliang in https://github.com/taosdata/TDengine/pull/18914
• fix: set compressMsg range by @yihaoDeng in https://github.com/taosdata/TDengine/pull/18911
• ci:add some test for stream by @54liuyao in https://github.com/taosdata/TDengine/pull/18918
• fix: fix error in getting pageIdList from group page hash map by @glzhao89 in https://github.com/taosdata/TDengine/pull/18906
• refact: post sem in mnode while sync timeout by @guanshengliang in https://github.com/taosdata/TDengine/pull/18921
• enh: shielding database option 'strict' by @xiao-yu-wang in https://github.com/taosdata/TDengine/pull/18920
• refactor: do multiple refactor and improve some query perf. by @hjxilinx in https://github.com/taosdata/TDengine/pull/18905
• fix: remove unused param by @yihaoDeng in https://github.com/taosdata/TDengine/pull/18936
• fix: udfd pipe close before send response by @shenglian-zhou in https://github.com/taosdata/TDengine/pull/18917
• fix: fix invalid retrieved buffer page causing crash by @glzhao89 in https://github.com/taosdata/TDengine/pull/18929
• fix: refact some example files by @dapan1121 in https://github.com/taosdata/TDengine/pull/18927
• refact: post sem in vnode while sync timeout by @guanshengliang in https://github.com/taosdata/TDengine/pull/18940
• fix docs of 11-kafka.md by @yuanguangxin in https://github.com/taosdata/TDengine/pull/18953
• fix: remove sch status on timeout by @yihaoDeng in https://github.com/taosdata/TDengine/pull/18948
• fix: reduce the frequency of retry in sync not ready case while alter db by @guanshengliang in https://github.com/taosdata/TDengine/pull/18952
• enh: adjust batchSize dynamically on retryBackoff by @bgzhao66 in https://github.com/taosdata/TDengine/pull/18955
• fix: incorrect error code for repeated dnode creation by @guanshengliang in https://github.com/taosdata/TDengine/pull/18972
• fix: change err msg while vnode is stoped by @yihaoDeng in https://github.com/taosdata/TDengine/pull/18963
• enh(stream): forbid source db replica > 1 by @cosmic-jc in https://github.com/taosdata/TDengine/pull/18968
• fix: should not fsync in log level is error by @guanshengliang in https://github.com/taosdata/TDengine/pull/18978
• fix: reset errorcode after check leader by @guanshengliang in https://github.com/taosdata/TDengine/pull/18982
• fix(tsdb): default value of tsdbPageSize by @kailixu in https://github.com/taosdata/TDengine/pull/18980
• docs(stream) by @cosmic-jc in https://github.com/taosdata/TDengine/pull/18988
• docs(stream) by @cosmic-jc in https://github.com/taosdata/TDengine/pull/18989
• docs(stream) by @cosmic-jc in https://github.com/taosdata/TDengine/pull/18991
• fix: reduce drop dnode speed to make data more secure by @guanshengliang in https://github.com/taosdata/TDengine/pull/18990
• fix: vnode snapshot rollback by @hzcheng in https://github.com/taosdata/TDengine/pull/18858
• enh: ignore head line in cvs file by @dapan1121 in https://github.com/taosdata/TDengine/pull/18951
• fix: remove invalid assert by @guanshengliang in https://github.com/taosdata/TDengine/pull/18997
• fix: mem leak td-21163 by @yihaoDeng in https://github.com/taosdata/TDengine/pull/18984
• Test/td 20540 by @happyguoxy in https://github.com/taosdata/TDengine/pull/19003
• fix(shell): fixed not last word matched by @DuanKuanJun in https://github.com/taosdata/TDengine/pull/19000
• fix: user auth error by @xiao-yu-wang in https://github.com/taosdata/TDengine/pull/18995
• fix: allow to rollback sync log buffer beyond startIndex with refill by @bgzhao66 in https://github.com/taosdata/TDengine/pull/19004
• fix: taosbenchmark delay time for windows by @sangshuduo in https://github.com/taosdata/TDengine/pull/19011
• fix(query): fix error. by @hjxilinx in https://github.com/taosdata/TDengine/pull/19016
• fix: disable insert csv statements on cloud services by @xiao-yu-wang in https://github.com/taosdata/TDengine/pull/19017
• fix(tdb): rollback in-memory pages by @stephenkgu in https://github.com/taosdata/TDengine/pull/19010
• fix: avoid double-free in usedb req while db in creating state by @guanshengliang in https://github.com/taosdata/TDengine/pull/19023
• fix: fix mem leak by @yihaoDeng in https://github.com/taosdata/TDengine/pull/19025
• enh(taosAdapter): return 502 when Unable to establish connection error occurs by @huskar-t in https://github.com/taosdata/TDengine/pull/19028
• fix(query): projection for null input by @cosmic-jc in https://github.com/taosdata/TDengine/pull/19033
• fix(meta/snap): use os memory instead of cache page replacement by @stephenkgu in https://github.com/taosdata/TDengine/pull/19035
• enh: java connector support get table vgid (#18981) by @sunpe in https://github.com/taosdata/TDengine/pull/19034
• test：add test case into ci by @jiacy-jcy in https://github.com/taosdata/TDengine/pull/19021
• enh: upgrade taosadapter by @sunpe in https://github.com/taosdata/TDengine/pull/19053
• Fix/xsren/mac enterprise base 3.0.2.1 by @facetosea in https://github.com/taosdata/TDengine/pull/19064

New Contributors

• @yuanguangxin made their first contribution in https://github.com/taosdata/TDengine/pull/18953

Full Changelog: https://github.com/taosdata/TDengine/compare/ver-3.0.2.0...ver-3.0.2.1