Kudu遇到的坑,是真的坑~ |
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在我使用spark对接kudu的过程中,出现如下错误: 坑1: Caused by: org.apache.kudu.client.NoLeaderFoundExceptionCaused by: org.apache.kudu.client.NoLeaderFoundException: Master config (192.168.1.117:7051) has no leader. Exceptions received: org.apache.kudu.client.RecoverableException: [peer master-192.168.1.117:7051(192.168.1.117:7051)] encountered a read timeout; closing the channel\ 重点分析:Master config (192.168.1.117:7051) has no leader : 客户端找不到master的leader encountered a read timeout : 遭遇读取超时 因为kudu客户端连接kudu服务器时,服务器返回master的主机名 要想知道master返回的主机名是什么,可以直接到web-ui上去查看。
注意是master的web-ui,即8051端口页面:
查看自己master 返回的leader: http://192.168.1.117:8051/masters rpc_addresses { host: "spark003" port: 7051 } http_addresses { host: "spark003" port: 8051 } software_version: "kudu 1.7.0-cdh5.15.0 (rev 7dd4889729bb5ee0b331a5a6c3cd4427dbf79308)" https_enabled: false这个rpc_addresses 的 spark003 会返回给你的客户端,这个时候你的客户端就得能够解析才行 问题就是出在这儿。我本地的hosts 文件并没有这个解析 我是windows ,hosts文件位置在: C:\Windows\System32\drivers\etc # add a record 192.168.1.117 spark003最后,问题,完美解决~~ 坑2: Caused by: java.lang.IllegalArgumentException: cannot import authentication data from a different user: old=’’, new=‘liuge’最终解决: [root@spark001 conf]# vim master.gflagfile -rpc_encryption=disabled -rpc_authentication=disabled -trusted_subnets=0.0.0.0/0 # 重启master server [root@spark001 conf]# /etc/init.d/kudu-master restart Stopped Kudu Master Server: [ OK ] Started Kudu Master Server (kudu-master): [ OK ] [root@spark001 conf]# 坑3:Exception in thread “main” org.apache.kudu.client.NonRecoverableException: can not complete before timeout: KuduRpc我一开始对于这个错误,还真的是很纳闷。各种搜索解决,都无果, 后来,我尝试把tserver.gflagfile 也添加如上配置就可以了 [root@spark001 conf]# vim tserver.gflagfile -rpc_encryption=disabled -rpc_authentication=disabled -trusted_subnets=0.0.0.0/0 # 重启master server [root@spark001 conf]# /etc/init.d/kudu-master restart Stopped Kudu Master Server: [ OK ] Started Kudu Master Server (kudu-master): [ OK ] [root@spark001 conf]# |
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