解决Canal 连接数据库超时问题
根本原因DNS 反向解析导致超时Caused by: java.net.SocketTimeoutException: Timeout occurred, failed to read total 4 bytes in 5000 milliseconds, actual read only 0 bytes at com.alibaba.otter.canal.parse.driver.mysql.socket.BioSocketChannel.read(BioSocketChannel.java:91) at com.alibaba.otter.canal.parse.driver.mysql.utils.PacketManager.readHeader(PacketManager.java:19) at com.alibaba.otter.canal.parse.driver.mysql.MysqlConnector.negotiate(MysqlConnector.java:162) at com.alibaba.otter.canal.parse.driver.mysql.MysqlConnector.connect(MysqlConnector.java:82)解决方法跳过域名解析我是使用docker安装mysql的找到配置文件对应的挂载目录 修改里面的my.cnf文件在[mysqld]下面加配置skip-name-resolve然后重启主节点
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