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https://issues.apache.org/jira/browse/HADOOP-14531?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16063168#comment-16063168
 ] 

Steve Loughran commented on HADOOP-14531:
-----------------------------------------

403 from a put request which didn't include everything it should. This should 
translate to an auth failure (as it is)
{code}
testPutObjectDirect(org.apache.hadoop.fs.s3a.ITestS3AMiscOperations)  Time 
elapsed: 1.232 sec  <<< ERROR!
com.amazonaws.services.s3.model.AmazonS3Exception: The request signature we 
calculated does not match the signature you provided. Check your key and 
signing method. (Service: Amazon S3; Status Code: 403; Error Code: 
SignatureDoesNotMatch; Request ID: C2B015BE1F6ED102)
        at 
com.amazonaws.http.AmazonHttpClient$RequestExecutor.handleErrorResponse(AmazonHttpClient.java:1588)
        at 
com.amazonaws.http.AmazonHttpClient$RequestExecutor.executeOneRequest(AmazonHttpClient.java:1258)
        at 
com.amazonaws.http.AmazonHttpClient$RequestExecutor.executeHelper(AmazonHttpClient.java:1030)
        at 
com.amazonaws.http.AmazonHttpClient$RequestExecutor.doExecute(AmazonHttpClient.java:742)
        at 
com.amazonaws.http.AmazonHttpClient$RequestExecutor.executeWithTimer(AmazonHttpClient.java:716)
        at 
com.amazonaws.http.AmazonHttpClient$RequestExecutor.execute(AmazonHttpClient.java:699)
        at 
com.amazonaws.http.AmazonHttpClient$RequestExecutor.access$500(AmazonHttpClient.java:667)
        at 
com.amazonaws.http.AmazonHttpClient$RequestExecutionBuilderImpl.execute(AmazonHttpClient.java:649)
        at 
com.amazonaws.http.AmazonHttpClient.execute(AmazonHttpClient.java:513)
        at 
com.amazonaws.services.s3.AmazonS3Client.invoke(AmazonS3Client.java:4221)
        at 
com.amazonaws.services.s3.AmazonS3Client.invoke(AmazonS3Client.java:4168)
        at 
com.amazonaws.services.s3.AmazonS3Client.putObject(AmazonS3Client.java:1718)
        at 
org.apache.hadoop.fs.s3a.S3AFileSystem.putObjectDirect(S3AFileSystem.java:1253)
        at 
org.apache.hadoop.fs.s3a.ITestS3AMiscOperations.lambda$testPutObjectDirect$0(ITestS3AMiscOperations.java:74)
{code}

> Improve S3A error handling & reporting
> --------------------------------------
>
>                 Key: HADOOP-14531
>                 URL: https://issues.apache.org/jira/browse/HADOOP-14531
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: fs/s3
>    Affects Versions: 2.8.1
>            Reporter: Steve Loughran
>
> Improve S3a error handling and reporting
> this includes
> # looking at error codes and translating to more specific exceptions
> # better retry logic where present
> # adding retry logic where not present
> # more diagnostics in exceptions 
> # docs
> Overall goals
> * things that can be retried and will go away are retried for a bit
> * things that don't go away when retried failfast (302, no auth, unknown 
> host, connection refused)
> * meaningful exceptions are built in translate exception
> * diagnostics are included, where possible
> * our troubleshooting docs are expanded with new failures we encounter



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