Sqoop错误retriesgetfailedduetoexceededmaximumallowedretriesnumber

现象

执行sqoop命令时报以下warning&＃xff0c;但sqoop抽数功能不受影响。

解决

根据错误提示&＃xff0c;找到https://community.hortonworks.com/questions/70997/failed-to-connect-to-server-port-8032-retries-get.html?sort&＃61;oldest 这篇文章&＃xff0c;

Your standby RM (rm1) must be the first RM in the configured list of RMs. So its tried first and that results in exceptions.

查看YARN配置发现&＃xff0c;Resource Manager有两个Active和Standy&＃xff0c;目前Active为namenode2&＃xff0c;Standy为namenode1。
根据以上解答&＃xff0c;这并不影响功能使用&＃xff0c;但是会有如上warning,试着把Active RM关闭后&＃xff0c;发现Active RM变成了namenode1&＃xff0c;再启用刚刚关闭的RM&＃xff0c;这时原来的Active RM变为了Standy的RM&＃xff0c;由此解决warning问题。