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Set following properties to access - S3, S3a, S3n

 

"fs.s3.awsAccessKeyId", access_key

"fs.s3n.awsAccessKeyId", access_key

"fs.s3a.access.key", access_key

"fs.s3.awsSecretAccessKey", secret_key

"fs.s3n.awsSecretAccessKey", secret_key

"fs.s3a.secret.key", secret_key

"fs.s3n.impl", "org.apache.hadoop.fs.s3native.NativeS3FileSystem"

"fs.s3a.impl", "org.apache.hadoop.fs.s3a.S3AFileSystem"

"fs.s3.impl", "org.apache.hadoop.fs.s3.S3FileSystem"


If one needs to copy data from one S3 Bucket to other with different credential keys. Then - 

  • If you are on Hadoop cluster with version 2.7, and using s3a:// then - 
    • use URI as following - s3a://DataAccountKey:DataAccountSecretKey/DataAccount/path
  • If you are on EMR or Hadoop 2.8+ then one can add properties per-bucket, as following - 
    • fs.s3a.bucket.DataAccount.access.key DataAccountKey fs.s3a.bucket.DataAccount.secret.key DataAccountSecretKey

    • fs.s3.bucket.DataAccount.awsAccessKeyId DataAccountKey fs.s3.bucket.DataAccount.awsSecretAccessKey DataAccountSecretKey

    • fs.s3n.bucket.DataAccount.awsAccessKeyId DataAccountKey fs.s3n.bucket.DataAccount.awsSecretAccessKey DataAccountSecretKey
    Note - If you are using Spark then prepend spark.hadoop. to above properties.

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