Details
Major Description
We have set yarn.resourcemanager.connect.wait-ms to -1 to use FOREVER retry policy.
Yarn client is infinitely retrying in case of exceptions from the RM as it is using retrying policy as FOREVER. The problem is it is retrying for all kinds of exceptions (like ApplicationNotFoundException), even though it is not a connection failure. Due to this my application is not progressing further.
Yarn client should not retry infinitely in case of non connection failures.
We have written a simple yarn-client which is trying to get an application report for an invalid or older appId. ResourceManager is throwing an ApplicationNotFoundException as this is an invalid or older appId. But because of retry policy FOREVER, client is keep on retrying for getting the application report and ResourceManager is throwing ApplicationNotFoundException continuously.
private void testYarnClientRetryPolicy() throws Exception{ YarnConfiguration conf = new YarnConfiguration(); conf.setInt(YarnConfiguration.RESOURCEMANAGER_CONNECT_MAX_WAIT_MS, -1); YarnClient yarnClient = YarnClient.createYarnClient(); yarnClient.init(conf); yarnClient.start(); ApplicationId appId = ApplicationId.newInstance(1430126768987L, 10645); ApplicationReport report = yarnClient.getApplicationReport(appId); }
RM logs:
15/05/14 16:33:24 INFO ipc.Server: IPC Server handler 21 on 8032, call org.apache.hadoop.yarn.api.ApplicationClientProtocolPB.getApplicationReport from 10.14.120.231:61621 Call#875162 Retry#0 org.apache.hadoop.yarn.exceptions.ApplicationNotFoundException: Application with id 'application_1430126768987_10645' doesn't exist in RM. at org.apache.hadoop.yarn.server.resourcemanager.ClientRMService.getApplicationReport(ClientRMService.java:284) at org.apache.hadoop.yarn.api.impl.pb.service.ApplicationClientProtocolPBServiceImpl.getApplicationReport(ApplicationClientProtocolPBServiceImpl.java:145) at org.apache.hadoop.yarn.proto.ApplicationClientProtocol$ApplicationClientProtocolService$2.callBlockingMethod(ApplicationClientProtocol.java:321) at org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:585) at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:928) at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2013) at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2009) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:415) at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1556) at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2007) .... 15/05/14 16:33:24 INFO ipc.Server: IPC Server handler 47 on 8032, call org.apache.hadoop.yarn.api.ApplicationClientProtocolPB.getApplicationReport from 10.14.120.231:61621 Call#875163 Retry#0 ....