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Gergely Novák commented on YARN-4954: ------------------------------------- Tried to reproduce the timeout issues but couldn't. However, it is certain that they have nothing to do with my patch and in the subsequent builds they are not present. > TestYarnClient.testReservationAPIs fails on machines with less than 4 GB > available memory > ----------------------------------------------------------------------------------------- > > Key: YARN-4954 > URL: https://issues.apache.org/jira/browse/YARN-4954 > Project: Hadoop YARN > Issue Type: Test > Components: test > Affects Versions: 3.0.0 > Reporter: Gergely Novák > Assignee: Gergely Novák > Priority: Minor > Attachments: YARN-4954.001.patch > > > TestYarnClient.testReservationAPIs sometimes fails with this error: > {noformat} > java.lang.AssertionError: > org.apache.hadoop.yarn.server.resourcemanager.reservation.exceptions.PlanningException: > The request cannot be satisfied > at > org.apache.hadoop.yarn.ipc.RPCUtil.getRemoteException(RPCUtil.java:38) > at > org.apache.hadoop.yarn.server.resourcemanager.ClientRMService.submitReservation(ClientRMService.java:1254) > at > org.apache.hadoop.yarn.api.impl.pb.service.ApplicationClientProtocolPBServiceImpl.submitReservation(ApplicationClientProtocolPBServiceImpl.java:457) > at > org.apache.hadoop.yarn.proto.ApplicationClientProtocol$ApplicationClientProtocolService$2.callBlockingMethod(ApplicationClientProtocol.java:515) > at > org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:637) > at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:989) > at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2422) > at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2418) > at java.security.AccessController.doPrivileged(Native Method) > at javax.security.auth.Subject.doAs(Subject.java:415) > at > org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1742) > at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2416) > Caused by: > org.apache.hadoop.yarn.server.resourcemanager.reservation.exceptions.PlanningException: > The request cannot be satisfied > at > org.apache.hadoop.yarn.server.resourcemanager.reservation.planning.IterativePlanner.computeJobAllocation(IterativePlanner.java:151) > at > org.apache.hadoop.yarn.server.resourcemanager.reservation.planning.PlanningAlgorithm.allocateUser(PlanningAlgorithm.java:64) > at > org.apache.hadoop.yarn.server.resourcemanager.reservation.planning.PlanningAlgorithm.createReservation(PlanningAlgorithm.java:140) > at > org.apache.hadoop.yarn.server.resourcemanager.reservation.planning.TryManyReservationAgents.createReservation(TryManyReservationAgents.java:55) > at > org.apache.hadoop.yarn.server.resourcemanager.reservation.planning.AlignedPlannerWithGreedy.createReservation(AlignedPlannerWithGreedy.java:84) > at > org.apache.hadoop.yarn.server.resourcemanager.ClientRMService.submitReservation(ClientRMService.java:1237) > ... 10 more > at org.junit.Assert.fail(Assert.java:88) > at > org.apache.hadoop.yarn.client.api.impl.TestYarnClient.testReservationAPIs(TestYarnClient.java:1227) > {noformat} > This is caused by really not having enough available memory to complete the > reservation (4 * 1024 MB). In my opinion lowering the required memory (either > by lowering the number of containers to 2, or the memory to 512 MB) would > make the test more stable. -- This message was sent by Atlassian JIRA (v6.3.4#6332)