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From umanga <>
Subject Re: scala.NotImplementedError: put() should not be called on an EmptyStateMap while doing stateful computation on spark streaming
Date Tue, 21 Jun 2016 09:24:44 GMT
further descriptions:

Environment: Spark cluster running in standalone mode with 1 master, 5
slaves, each has 4 vCPUS, 8GB RAM
data is being streamed from 3 node kafka cluster (managed by 3 node zk

Checkpointing is being done at hadoop-cluster, 
plus we are also saving state in HBase (on top of hadoop-cluster) and
recovering it while starting the streaming appplication

Please find the screen shot

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