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Standalone spark cluster. Can't submit job programmatically -> java.io.InvalidClassException

After wasting a lot of time, I've found the problem. Despite I haven't used hadoop/hdfs in my application, hadoop client matters. The problem was in hadoop-client version, it was different than the version of hadoop, spark was built for. Spark's hadoop version 1.2.1, but in my application that was 2.4.

When I changed the version of hadoop client to 1.2.1 in my app, I'm able to execute spark code on cluster.

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