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使用 JDBC schemaless（AbstractConnection.write）写入时 Mach port（SEMAPHORE send rights）持续增长

bugSomething isn't workingSomething isn't working

Status: Open.

#34557 In taosdata/TDengine;

· Qiaofanxing opened on Feb 11, 2026

查询响应时间波动很大，导致并发性能较低以及在高并发下查询响应变得更长导致响应超时

help wantedExtra attention is neededExtra attention is needed

questionFurther information is requestedFurther information is requested

Status: Open.

#34554 In taosdata/TDengine;

· 2779382063 opened on Feb 11, 2026

taosd SEGV in addTagPseudoColumnData when TMQ polls while streams write to same vgroup (macOS ARM64)

bugSomething isn't workingSomething isn't working

Status: Open.

#34544 In taosdata/TDengine;

· brunohaid opened on Feb 9, 2026

安装3.4.0登录taos-explorer报错Invalid password

bugSomething isn't workingSomething isn't working

Status: Open.

#34535 In taosdata/TDengine;

· strongyc opened on Feb 7, 2026

查询超级表时TIMESTAMP字段作为条件和GEOMETRY作为条件都可以正常查询，两个字段同时作为条件查询报错！！！

Status: Open.

#34534 In taosdata/TDengine;

· ZzzzzzlzzzzzZ opened on Feb 7, 2026

扩容新节点的vnodes数量为0

help wantedExtra attention is neededExtra attention is needed

questionFurther information is requestedFurther information is requested

Status: Open.

#34512 In taosdata/TDengine;

· KevinRecovery opened on Feb 5, 2026

3.4.0.2版本中在计数窗口流计算中使用group_concat聚合函数会引发宕机和报错

bugSomething isn't workingSomething isn't working

Status: Open.

#34504 In taosdata/TDengine;

· Cabbage-Leon opened on Feb 5, 2026

基于mybatis开启高效写入不生效？

bugSomething isn't workingSomething isn't working

Status: Open.

#34495 In taosdata/TDengine;

· KevinRecovery opened on Feb 4, 2026

TDengine oss 3.3.6 订阅超级表时如何获取标签中内容或者获取子表名

bugSomething isn't workingSomething isn't working

Status: Open.

#34452 In taosdata/TDengine;

· shizhishangge opened on Jan 29, 2026

TDengine oss 3.3.6 taos-jdbcdriver 3.7.8 订阅select 查询时一段时间后收不到消息（出现了hash键冲突）

bugSomething isn't workingSomething isn't working

Status: Open.

#34451 In taosdata/TDengine;

· shizhishangge opened on Jan 29, 2026

主题订阅突然不好使了

bugSomething isn't workingSomething isn't working

Status: Open.

#34416 In taosdata/TDengine;

· MarJavaW opened on Jan 27, 2026

PERIOD trigger with multi-table JOINs crashes taosd with Sigfault 11

bugSomething isn't workingSomething isn't working

Status: Open.

#34393 In taosdata/TDengine;

· brunohaid opened on Jan 23, 2026