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chengyouling
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In the dual-AZ engine fault scenario, registration center will intermittently delete instance, because of heartbeat interval is abnormal
In the dual-AZ engine disk abnormal scenario, registration center will intermittently delete instance, because of heartbeat interval is abnormal
Oct 19, 2024
chengyouling
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this issue
Oct 19, 2024
问题现象:
双AZ容灾引擎某个引擎磁盘异常时,注册中心实例会被间断的剔除下线。
原因:
引擎故障后,隔离地址检查任务、心跳任务都在一个单线程线程池中,所有任务排队执行,引擎磁盘异常或者连接异常都要等待超时时间结束才能执行下一个任务,导致心跳时间间隔拉长,注册中心健康检查不通过剔除实例。
修改方案:
异常地址检查单独启动异步线程执行
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