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https://issues.apache.org/jira/browse/MAPREDUCE-4041?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13245382#comment-13245382
]
Kihwal Lee commented on MAPREDUCE-4041:
---------------------------------------
The following is the exception that is occurring. It happens whenever the test
tries to run MRAdmin to refresh.
{noformat}
2012-04-03 04:29:59,604 INFO [IPC Server handler 3 on 43005] ipc.Server
(Server.java:run(1680))
- IPC Server handler 3 on 43005, call refreshUserToGroupsMappings(), rpc
version=2, client version=1,
methodsFingerPrint=-876529506 from 127.0.0.1:50564: error:
java.io.IOException: java.io.IOException:
Unknown protocol: org.apache.hadoop.security.RefreshUserMappingsProtocol
java.io.IOException: java.io.IOException: Unknown protocol:
org.apache.hadoop.security.RefreshUserMappingsProtocol
at
org.apache.hadoop.ipc.WritableRpcEngine$Server$WritableRpcInvoker.call(WritableRpcEngine.java:477)
at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:891)
at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1661)
at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1657)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:396)
at
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1205)
at org.apache.hadoop.ipc.Server$Handler.run(Server.java:1655)
{noformat}
And the the JT's RPC server sorts things out on start-up.
{noformat}
2012-04-03 04:29:58,581 INFO [Thread-56] mapred.JobTracker
(JobTracker.java:<init>(1481)) - Starting jobtracker with owner as xxxxxx
2012-04-03 04:29:58,588 INFO [Socket Reader #1 for port 43005] ipc.Server
(Server.java:run(456)) - Starting Socket Reader #1 for port 43005
2012-04-03 04:29:58,589 WARN [Thread-56] ipc.RPC
(RPC.java:getSuperInterfaces(109)) - Interface interface
org.apache.hadoop.mapred.MRConstants ignored because it does not extend
VersionedProtocol
2012-04-03 04:29:58,589 WARN [Thread-56] ipc.RPC
(RPC.java:getSuperInterfaces(109)) - Interface interface
org.apache.hadoop.mapred.TaskTrackerManager ignored because it does not extend
VersionedProtocol
2012-04-03 04:29:58,589 WARN [Thread-56] ipc.RPC
(RPC.java:getSuperInterfaces(109)) - Interface interface
org.apache.hadoop.security.RefreshUserMappingsProtocol ignored because it does
not extend VersionedProtocol
2012-04-03 04:29:58,589 WARN [Thread-56] ipc.RPC
(RPC.java:getSuperInterfaces(109)) - Interface interface
org.apache.hadoop.security.authorize.RefreshAuthorizationPolicyProtocol ignored
because it does not extend VersionedProtocol
2012-04-03 04:29:58,589 WARN [Thread-56] ipc.RPC
(RPC.java:getSuperInterfaces(109)) - Interface interface
org.apache.hadoop.tools.GetUserMappingsProtocol ignored because it does not
extend VersionedProtocol
2012-04-03 04:29:58,589 WARN [Thread-56] ipc.RPC
(RPC.java:getSuperInterfaces(109)) - Interface interface
org.apache.hadoop.mapreduce.server.jobtracker.JTConfig ignored because it does
not extend VersionedProtocol
{noformat}
> TestMapredGroupMappingServiceRefresh unit test failures
> -------------------------------------------------------
>
> Key: MAPREDUCE-4041
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-4041
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: mrv2
> Affects Versions: 0.23.3
> Reporter: Thomas Graves
>
> On branch-0.23 the following unit tests fail:
> >>> org.apache.hadoop.security.TestMapredGroupMappingServiceRefresh.testGroupMappingRefresh
> >>>
> >>> org.apache.hadoop.security.TestMapredGroupMappingServiceRefresh.testRefreshSuperUserGroupsConfiguration
> >>>
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