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From Koert Kuipers <>
Subject objectFile uses only java serializer?
Date Mon, 23 Mar 2015 20:14:59 GMT
in the comments on SparkContext.objectFile it says:
"It will also be pretty slow if you use the default serializer (Java

this suggests the spark.serializer is used, which means i can switch to the
much faster kryo serializer. however when i look at the code it uses
Utils.deserialize, which is always using Java serialization.

did i get that right? and is this desired?
it seems straightforward to switch objectFile to use the serializer as
specified by spark.serializer (although it might being in new classloader

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