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From "Miklos Szurap (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-10389) LoadBalancingKMSClientProvider ClassCastException on AuthenticationException
Date Wed, 11 May 2016 11:43:12 GMT
Miklos Szurap created HDFS-10389:
------------------------------------

             Summary: LoadBalancingKMSClientProvider ClassCastException on AuthenticationException
                 Key: HDFS-10389
                 URL: https://issues.apache.org/jira/browse/HDFS-10389
             Project: Hadoop HDFS
          Issue Type: Bug
            Reporter: Miklos Szurap


An Oozie job with a single shell action fails (may not be important, but if you needs the
exact details I can provide them) with an error message coming from NodeManager:
{code}
2016-05-10 11:10:14,290 ERROR org.apache.hadoop.yarn.YarnUncaughtExceptionHandler: Thread
Thread[LogAggregationService #652,5,main] threw an Exception.
java.lang.ClassCastException: org.apache.hadoop.security.authentication.client.AuthenticationException
cannot be cast to java.security.GeneralSecurityException
at org.apache.hadoop.crypto.key.kms.LoadBalancingKMSClientProvider.decryptEncryptedKey(LoadBalancingKMSClientProvider.java:189)
at org.apache.hadoop.crypto.key.KeyProviderCryptoExtension.decryptEncryptedKey(KeyProviderCryptoExtension.java:388)
at org.apache.hadoop.hdfs.DFSClient.decryptEncryptedDataEncryptionKey(DFSClient.java:1419)
at org.apache.hadoop.hdfs.DFSClient.createWrappedOutputStream(DFSClient.java:1521)
at org.apache.hadoop.fs.Hdfs.createInternal(Hdfs.java:108)
at org.apache.hadoop.fs.Hdfs.createInternal(Hdfs.java:59)
at org.apache.hadoop.fs.AbstractFileSystem.create(AbstractFileSystem.java:577)
at org.apache.hadoop.fs.FileContext$3.next(FileContext.java:683)
at org.apache.hadoop.fs.FileContext$3.next(FileContext.java:679)
at org.apache.hadoop.fs.FSLinkResolver.resolve(FSLinkResolver.java:90)
at org.apache.hadoop.fs.FileContext.create(FileContext.java:679)
at org.apache.hadoop.yarn.logaggregation.AggregatedLogFormat$LogWriter$1.run(AggregatedLogFormat.java:382)
at org.apache.hadoop.yarn.logaggregation.AggregatedLogFormat$LogWriter$1.run(AggregatedLogFormat.java:377)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:422)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1671)
at org.apache.hadoop.yarn.logaggregation.AggregatedLogFormat$LogWriter.<init>(AggregatedLogFormat.java:376)
at org.apache.hadoop.yarn.server.nodemanager.containermanager.logaggregation.AppLogAggregatorImpl.uploadLogsForContainers(AppLogAggregatorImpl.java:246)
at org.apache.hadoop.yarn.server.nodemanager.containermanager.logaggregation.AppLogAggregatorImpl.doAppLogAggregation(AppLogAggregatorImpl.java:456)
at org.apache.hadoop.yarn.server.nodemanager.containermanager.logaggregation.AppLogAggregatorImpl.run(AppLogAggregatorImpl.java:421)
at org.apache.hadoop.yarn.server.nodemanager.containermanager.logaggregation.LogAggregationService$2.run(LogAggregationService.java:384)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
{code}

The unsafe cast is here:
https://github.com/apache/hadoop/blob/2e1d0ff4e901b8313c8d71869735b94ed8bc40a0/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/crypto/key/kms/LoadBalancingKMSClientProvider.java#L189

Because of this ClassCastException:
- an uncaught exception is raised
- we do not see the exact "caused by" exception/message
- the oozie job fails
- YARN logs are not reported/saved



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