客户端测试kudu出错
Exception in thread "main" org.apache.spark.SparkException: Job aborted due to stage failure: Task 0 in stage 2.0 failed 1 times, most recent failure:
Lost task 0.0 in stage 2.0 (TID 67, localhost, executor driver): org.apache.kudu.client.NonRecoverableException: can not complete before timeout: Kud
uRpc(method=GetTableSchema, tablet=null, attempt=29, DeadlineTracker(timeout=30000, elapsed=27138), Traces: [0ms] querying master, [102ms] Sub rpc: Co
nnectToMaster sending RPC to server master-smartrade0103kf.itc.cmbchina.cn:7051, [180ms] Sub rpc: ConnectToMaster sending RPC to server master-smartra
de0104kf.itc.cmbchina.cn:7051, [233ms] Sub rpc: ConnectToMaster sending RPC to server master-smartrade0105kf.itc.cmbchina.cn:7051, [489ms] Sub rpc: Co
nnectToMaster received from server master-smartrade0104kf.itc.cmbchina.cn:7051 response Network error: connection disconnected, [489ms] Sub rpc: Conne
ctToMaster received from server master-smartrade0103kf.itc.cmbchina.cn:7051 response Network error: connection disconnected, [489ms] Sub rpc: ConnectT
oMaster received from server master-smartrade0105kf.itc.cmbchina.cn:7051 response Network error: connection disconnected, [493ms] delaying RPC due to
Service unavailable: Master config
...
原因：kudu默认设置了安全网域
解决方式：
配置kudu的安全网域
-trusted_subnets=0.0.0.0/0
配置完了，重启kudu就可以了。