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https://issues.apache.org/jira/browse/YARN-4954?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15251884#comment-15251884
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Junping Du commented on YARN-4954:
----------------------------------
Agree. I just kick off test again to see if timeout issue still exists for
TestYarnClient. If yes, we should file a separated JIRA to track it if we don't
have yet.
> 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.
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