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I am working with MapR streams and setting the parameter "spark.kafka.poll.time" in my direct kafka API consumer; However, I don't know exactly what is the meaning of this parameter?

Hi   I have gone through the blog , where we can register elasticsearch to integrate with Hbase and the sample worked perfectly for us. But the issue is that in our application, the data stored in hbase is of type json for example this is the data - {"test":"1234"} - tran:js is our column familyso the final column looks as
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Hi- I attempted to upgrade our ~40 node (Community) from 5.1 to 5.2 and evolve to using YARN. I added a node running Resource Manager, and another with History Manager. I thought I followed the instructions, but now have a dead cluster with the CLDB in this error state:   INFO CLDBServer [Lookup-5]: Rejecting RPC 2345.5 from