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From "Robert Levas (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HADOOP-16340) ABFS driver continues to retry on access denied responses from REST operations
Date Fri, 31 May 2019 17:45:00 GMT
Robert Levas created HADOOP-16340:
-------------------------------------

             Summary: ABFS driver continues to retry on access denied responses from REST
operations
                 Key: HADOOP-16340
                 URL: https://issues.apache.org/jira/browse/HADOOP-16340
             Project: Hadoop Common
          Issue Type: Bug
          Components: fs/azure
    Affects Versions: 3.3.0
            Reporter: Robert Levas


ABFS driver continues to retry (until retry count is exhausted) upon access denied responses
from REST operations.  

In the exception hander for IOExceptions at [https://github.com/apache/hadoop/blob/65f60e56b082faf92e1cd3daee2569d8fc669c67/hadoop-tools/hadoop-azure/src/main/java/org/apache/hadoop/fs/azurebfs/services/AbfsRestOperation.java#L174-L197],
there is no way exit out of the retry loop by re-throwing an exception unless one of the
following conditions have been met:
 * The retry limit was hit
 * An HttpException was encountered

>From an {{org.apache.hadoop.fs.azurebfs.extensions.CustomTokenProviderAdaptee}} or {{org.apache.hadoop.fs.azurebfs.extensions.CustomDelegationTokenManager}}
implementation, there is no way to create an {{org.apache.hadoop.fs.azurebfs.oauth2.AzureADAuthenticator.HttpException}}
since the constructor is package private. 

Either the exception handler needs to generic handle exceptions like {{java.nio.file.AccessDeniedException}}
and {{java.io.FileNotFoundException}}, or the access to {{org.apache.hadoop.fs.azurebfs.oauth2.AzureADAuthenticator.HttpException}}
needs to be set to that custom implementations can use it. 

 



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