OceanBase 数据库 V2.x 集群出现 unexpected dfc status 告警的原因与解决原因及解决方法

[2024-12-23 14:23:21.001815] ERROR [SQL.DTL] unregister_all_channel (ob_dtl_flow_control.cpp:139) [86297][1892][xxxxx-xxxxx-xxxxx-xxxxx] [lt=8] [dc=0] unexpected dfc status(chans_.count()=0, ret=0, get_blocked_cnt()=1, get_total_buffer_cnt()=0, get_used()=0, get_accumulated_blocked_cnt()=3427) BACKTRACE:0xd83e507 0x3567372 0xae66a85 0xae6709b 0xae67608 0xae67772 0xae2ea47 0xae3aa24 0xb5f3c38 0xb562b49 0xb562cbc 0xb54aca8 0x3316ff4 0x3316f83 0x3316f83 0x3316f83 0x3316f83 0x3316f83 0x330ad2d 0x331f6df 0x330a1bb 0x32f60bc 0x32edafa 0x32eb136 0x32e5df5 0xa97ee6b 0x3c86c28 0xd5ea977 0xd5e7f90 0xd5e5d4f