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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (APEXMALHAR-2174) S3 File Reader reading more data than expected
Date Mon, 08 Aug 2016 10:41:21 GMT

    [ https://issues.apache.org/jira/browse/APEXMALHAR-2174?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15411639#comment-15411639
] 

ASF GitHub Bot commented on APEXMALHAR-2174:
--------------------------------------------

Github user chaithu14 closed the pull request at:

    https://github.com/apache/apex-malhar/pull/360


> S3 File Reader reading more data than expected
> ----------------------------------------------
>
>                 Key: APEXMALHAR-2174
>                 URL: https://issues.apache.org/jira/browse/APEXMALHAR-2174
>             Project: Apache Apex Malhar
>          Issue Type: Bug
>            Reporter: Chaitanya
>            Assignee: Chaitanya
>
> This is observed through the AWS billing.
> Issue might be the S3InputStream.read() which is used in readEntity().
> Reading the block can be achieved through the AmazonS3 api's. So, I am proposing the
following solution:
> ```
>       GetObjectRequest rangeObjectRequest = new GetObjectRequest(
>           bucketName, key);
>       rangeObjectRequest.setRange(startByte, noOfBytes);
>       S3Object objectPortion = s3Client.getObject(rangeObjectRequest);
>       S3ObjectInputStream wrappedStream = objectPortion.getObjectContent();
>       byte[] record = ByteStreams.toByteArray(wrappedStream);
> Advantages of this solution: Parallel read will work for all types of s3 file systems.



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