GitHub user JDrit opened a pull request:
https://github.com/apache/spark/pull/7004
[SPARK-746][CORE] Added Avro Serialization to Kryo
Added a custom Kryo serializer for generic Avro records to reduce the
network IO
involved during a shuffle. This compresses the schema and allows for users
to
register their schemas ahead of time to further reduce traffic.
Currently Kryo tries to use its default serializer for generic Records,
which will include
a lot of unneeded data in each record.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/JDrit/spark Avro_serialization
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/7004.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 #7004
----
commit 97fba623260f34fe7b8e928aa3a9c5c11117ed4c
Author: Joseph Batchik <joseph.batc...@cloudera.com>
Date: 2015-06-23T16:58:22Z
Added a custom Kryo serializer for generic Avro records to reduce the
network IO
involved during a shuffle. This compresses the schema and allows for users
to
register their schemas ahead of time to further reduce traffic.
Changed how the records were serialized to reduce both the time and memory
used
removed unused variable
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