In this blog post we will discuss the small files problem in terms of our and is available as a jarfile (download it here) ready to run on your cluster. j-3GY8JC4179IOK --jar /home/hadoop/lib/emr-s3distcp-1.0.jar --args '--src. CANCEL_AND_WAIT.name()).withHadoopJarStep. // download jar file url. // s3://eu-west-1.elasticmapreduce/libs/s3distcp/1.0.7/s3distcp.jar. Amazon S3 is a great permanent storage option for unstructured data files because of its hadoop jar /usr/local/hadoop/lib/emr-s3distcp-1.0.jar -libjars Note: elastic-mapreduce is an Amazon EMR ruby client that you can download from.
Was specially: S3distcp.jar file download
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| packageexelexe.exsample.s3; |
|
| importcom.amazonaws.services.elasticmapreduce.model.ActionOnFailure; |
| importcom.amazonaws.services.elasticmapreduce.model.HadoopJarStepConfig; |
| importcom.amazonaws.services.elasticmapreduce.model.StepConfig; |
|
| publicclassS3distCpExsample { |
|
| publicStepConfiggetS3distCpConfig() { |
| String[] args = { |
| // copy file directory. |
| "--src", "s3://my-bucktet/path/to/src-dir" |
|
| // output file directory. |
| ,"--dest", "s3://my-bucktet/path/to/dest-dir" |
|
| /** |
| * merge pattern |
| * exsample |
| * src files |
| * prefix-20150320T10.57_1.gz |
| * prefix-20150330T20.54_0.gz |
| * dest file |
| * 0T100.gz |
| */ |
| ,"--groupBy", ".*prefix.*([0-9]+T[0-9]+).*" |
|
| // compression file type. |
| // values: gzip, lzo, snappy, or none. |
| ,"--outputCodec", "gzip" |
|
| // delete src file |
| ,"--deleteOnSuccess" |
| }; |
|
| StepConfig stepConfig =newStepConfig() |
| .withName("StepName") |
| .withActionOnFailure(ActionOnFailure.CANCEL_AND_WAIT.name()) |
| .withHadoopJarStep( |
| // download jar file url |
| // s3://eu-west-1.elasticmapreduce/libs/s3distcp/1.0.7/s3distcp.jar |
| newHadoopJarStepConfig("s3://my-bucktet/lib/s3distcp/1.0.7/s3distcp.jar").withArgs(args) |
| ); |
| return stepConfig; |
| } |
| } |
Источник: [https://torrent-igruha.org/3551-portal.html]
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