【 使用环境 】生产环境
【 OB or 其他组件 】ob binlog
【 使用版本 】ob 4.3.5.5 binlog 4.3.4
【问题描述】正常运行的binlog突然logproxy.log一直刷以下报错，白屏显示实例状态启动中且无法停止，在黑屏stop和drop实例后，白屏依旧显示实例且状态依旧启动中，最终删掉整个binlog集群重新部署配置恢复。
[2026-04-06 22:40:44.670234] [error] ob_mysql_packet.cpp(88): Failed to read packet length, errno: 22, error: Invalid argument
[2026-04-06 22:40:44.670237] [error] mysql_protocol.cpp(83): Failed to receive handshake packet from: ./run/pogme55wcv/binlog_instance.socket, error: 22(Invalid argument)
[2026-04-06 22:40:44.670241] [error] instance_client.cpp(62): Failed to login binlog instance, is_local: true, addr: ./run/pogme55wcv/binlog_instance.socket, exceed uds len limit: false
[2026-04-06 22:40:44.670243] [error] instance_client.cpp(42): Failed to connect to instance: pogme55wcv, server addr: ./run/pogme55wcv/binlog_instance.socket
[2026-04-06 22:40:44.670245] [error] database_protocol.cpp(3810): Failed to detect binlog instance: pogme55wcv
[2026-04-06 22:40:44.670252] [warning] database_protocol.cpp(3815): The local binlog instance [pogme55wcv] actually alive through kill 0 with pid [1632880]
[2026-04-06 22:40:45.692896] [info] database_protocol.cpp(4305): Begin to update instance gtid mapping data
[2026-04-06 22:40:45.711555] [info] mysql_protocol.cpp(70): Connect to server through unix domain socket success: ./run/pogme55wcv/binlog_instance.socket, user: OBM
[2026-04-06 22:40:45.711599] [warning] io.cpp(74): Failed to read, fd: 5, size: 4, error: 22(Invalid argument)
【复现路径】问题出现前后相关操作
【附件及日志】推荐使用OceanBase敏捷诊断工具obdiag收集诊断信息,详情参见链接（右键跳转查看）：
【备注】基于 LLM 和开源文档 RAG 的论坛小助手已开放测试，在发帖时输入 [@论坛小助手] 即可召唤小助手，欢迎试用！
