Enable Spark fetching mechanism (optional) and improve reading/writing of index and checksum files. #72
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Signed-off-by: Pascal Spörri <psp@zurich.ibm.com>
- Uses Java DataInput and DataOutput streams to write Longs. - Avoids extra allocation of serializer/deserializer. - Accumulate array lenghts before writing the index files. Signed-off-by: Pascal Spörri <psp@zurich.ibm.com>
This commit implements the Spark fetching algorithm and makes use of the `spark.storage.decommission.fallbackStorage.path` to read shuffle data. Signed-off-by: Pascal Spörri <psp@zurich.ibm.com>
Signed-off-by: Pascal Spörri <psp@zurich.ibm.com>
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Signed-off-by: Pascal Spörri <psp@zurich.ibm.com>
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Signed-off-by: Pascal Spörri <psp@zurich.ibm.com>
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This pull-request implements several improvements:
spark.storage.decommission.fallbackStorage.pathto read shuffle data. S3-Shuffle will write to the Spark fallback storage path directly.