Doris查询复杂sql时报错，

完整错误如下:

1105 - RpcException, msg: java.util.concurrent.TimeoutException: Waited 5000 milliseconds (plus 837951 nanoseconds delay) for io.grpc.stub.ClientCalls$GrpcFuture@60f1b43[status=PENDING, info=[GrpcFuture{clientCall={delegate=ClientCallImpl{method=MethodDescriptor{fullMethodName=doris.PBackendService/exec_plan_fragment_prepare, type=UNARY, idempotent=false, safe=false, sampledToLocalTracing=true, requestMarshaller=io.grpc.protobuf.lite.ProtoLiteUtils$MessageMarshaller@77a3192c, responseMarshaller=io.grpc.protobuf.l

经分析，由于查询时间超时导致，解决方法, 增大超时时间:

set global query_timeout=36000