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https://issues.apache.org/jira/browse/BEAM-2500?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16165391#comment-16165391
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Jacob Marble edited comment on BEAM-2500 at 9/14/17 4:57 AM:
-------------------------------------------------------------
I'm interested in implementing S3 support. Not being familiar Beam internals,
and without committing myself to anything, perhaps someone can comment on my
research notes.
GCS is probably a good template. Implement FileSystem, ResourceId,
FileSystemRegistrar, PipelineOptions, PipelineOptionsRegistrar:
https://github.com/apache/beam/tree/master/sdks/java/extensions/google-cloud-platform-core/src/main/java/org/apache/beam/sdk/extensions/gcp
For interacting with S3, this is probably the preferred SDK:
http://mvnrepository.com/artifact/com.amazonaws/aws-java-sdk-s3
Some specifics about implementing FileSystem:
FileSystem.copy()
- AmazonS3Client.copyObject((String sourceBucketName, String sourceKey, String
destinationBucketName, String destinationKey)
- max upload size is 5GB, which is probably fine to start, but need to use
multipart upload to get full 5TB limit
FileSystem.create()
- AmazonS3Client.putObject(putObject(String bucketName, String key, InputStream
input, ObjectMetadata metadata)
- max upload size is 5GB, which is probably fine to start, but need to use
multipart upload to get full 5TB limit
FileSystem.delete()
- AmazonS3Client.deleteObjects(DeleteObjectsRequest deleteObjectsRequest)
FileSystem.getScheme()
- return "s3"
FileSystem.match()
- j.o.apache.beam.sdk.extensions.util.gcsfs.GcsPath and same.GcsUtil have some
good ideas
FileSystem.matchNewResource()
- Look at GcsPath and GcsUtil
FileSystem.open()
- AmazonS3Client.getObject(String bucketName, String key)
FileSystem.rename()
- Can't find anything in AmazonS3Client; perhaps call FileSystem.copy(), then
FileSystem.delete()
I'm not clear about how to register the s3 FileSystem as mentioned in the
FileSystemRegistrar Javadoc:
"FileSystem creators have the ability to provide a registrar by creating a
ServiceLoader entry and a concrete implementation of this interface.
It is optional but recommended to use one of the many build time tools such as
AutoService to generate the necessary META-INF files automatically."
was (Author: jmarble):
I'm interested in implementing S3 support. Not being familiar Beam internals,
and without committing myself to anything, perhaps someone can comment on my
research notes.
GCS is probably a good template. Implement FileSystem, ResourceId,
FileSystemRegistrar, PathValidator, PipelineOptions, PipelineOptionsRegistrar:
https://github.com/apache/beam/tree/master/sdks/java/extensions/google-cloud-platform-core/src/main/java/org/apache/beam/sdk/extensions/gcp
For interacting with S3, this is probably the preferred SDK:
http://mvnrepository.com/artifact/com.amazonaws/aws-java-sdk-s3
Some specifics about implementing FileSystem:
FileSystem.copy()
- AmazonS3Client.copyObject((String sourceBucketName, String sourceKey, String
destinationBucketName, String destinationKey)
- max upload size is 5GB, which is probably fine to start, but need to use
multipart upload to get full 5TB limit
FileSystem.create()
- AmazonS3Client.putObject(putObject(String bucketName, String key, InputStream
input, ObjectMetadata metadata)
- max upload size is 5GB, which is probably fine to start, but need to use
multipart upload to get full 5TB limit
FileSystem.delete()
- AmazonS3Client.deleteObjects(DeleteObjectsRequest deleteObjectsRequest)
FileSystem.getScheme()
- return "s3"
FileSystem.match()
- j.o.apache.beam.sdk.extensions.util.gcsfs.GcsPath and same.GcsUtil have some
good ideas
FileSystem.matchNewResource()
- Look at GcsPath and GcsUtil
FileSystem.open()
- AmazonS3Client.getObject(String bucketName, String key)
FileSystem.rename()
- Can't find anything in AmazonS3Client; perhaps call FileSystem.copy(), then
FileSystem.delete()
I'm not clear about how to register the s3 FileSystem as mentioned in the
FileSystemRegistrar Javadoc:
"FileSystem creators have the ability to provide a registrar by creating a
ServiceLoader entry and a concrete implementation of this interface.
It is optional but recommended to use one of the many build time tools such as
AutoService to generate the necessary META-INF files automatically."
> Add support for S3 as a Apache Beam FileSystem
> ----------------------------------------------
>
> Key: BEAM-2500
> URL: https://issues.apache.org/jira/browse/BEAM-2500
> Project: Beam
> Issue Type: Improvement
> Components: sdk-java-extensions
> Reporter: Luke Cwik
> Priority: Minor
> Attachments: hadoop_fs_patch.patch
>
>
> Note that this is for providing direct integration with S3 as an Apache Beam
> FileSystem.
> There is already support for using the Hadoop S3 connector by depending on
> the Hadoop File System module[1], configuring HadoopFileSystemOptions[2] with
> a S3 configuration[3].
> 1: https://github.com/apache/beam/tree/master/sdks/java/io/hadoop-file-system
> 2:
> https://github.com/apache/beam/blob/master/sdks/java/io/hadoop-file-system/src/main/java/org/apache/beam/sdk/io/hdfs/HadoopFileSystemOptions.java#L53
> 3: https://wiki.apache.org/hadoop/AmazonS3
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