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Posted to commits@beam.apache.org by "ASF GitHub Bot (JIRA)" <ji...@apache.org> on 2017/08/22 12:56:00 UTC
[jira] [Commented] (BEAM-2790) Error while reading from Amazon S3
via Hadoop File System
[ https://issues.apache.org/jira/browse/BEAM-2790?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16136748#comment-16136748 ]
ASF GitHub Bot commented on BEAM-2790:
--------------------------------------
GitHub user iemejia opened a pull request:
https://github.com/apache/beam/pull/3744
[BEAM-2790] Use byte[] instead of ByteBuffer to read from Hadoop FS
Follow this checklist to help us incorporate your contribution quickly and easily:
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---
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/iemejia/beam BEAM-2790-fix-s3-read
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/beam/pull/3744.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #3744
----
commit 76f2d91bc9f612d4e98fe7d8099dffd36c47ff85
Author: Ismaël Mejía <ie...@gmail.com>
Date: 2017-08-22T12:50:12Z
[BEAM-2790] Use byte[] instead of ByteBuffer to read from Hadoop FS
----
> Error while reading from Amazon S3 via Hadoop File System
> ---------------------------------------------------------
>
> Key: BEAM-2790
> URL: https://issues.apache.org/jira/browse/BEAM-2790
> Project: Beam
> Issue Type: Bug
> Components: sdk-java-extensions
> Affects Versions: 2.0.0, 2.1.0
> Reporter: Ismaël Mejía
> Assignee: Ismaël Mejía
>
> If you try to use hadoop-aws with Beam to read from AWS S3 it breaks because S3AInputStream (the implementation of Hadoop's FSDataInputStream) is not ByteBufferReadable.
> [code]
> Exception in thread "main" java.lang.UnsupportedOperationException: Byte-buffer read unsupported by input stream
> at org.apache.hadoop.fs.FSDataInputStream.read(FSDataInputStream.java:146)
> at org.apache.beam.sdk.io.hdfs.HadoopFileSystem$HadoopSeekableByteChannel.read(HadoopFileSystem.java:192)
> at org.apache.beam.sdk.io.TextSource$TextBasedReader.tryToEnsureNumberOfBytesInBuffer(TextSource.java:232)
> at org.apache.beam.sdk.io.TextSource$TextBasedReader.findSeparatorBounds(TextSource.java:166)
> at org.apache.beam.sdk.io.TextSource$TextBasedReader.readNextRecord(TextSource.java:198)
> at org.apache.beam.sdk.io.FileBasedSource$FileBasedReader.advanceImpl(FileBasedSource.java:481)
> at org.apache.beam.sdk.io.FileBasedSource$FileBasedReader.startImpl(FileBasedSource.java:476)
> at org.apache.beam.sdk.io.OffsetBasedSource$OffsetBasedReader.start(OffsetBasedSource.java:261)
> [code]
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