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Understanding the impala profile

Explorer

Hi,

   When we are analyzing an impala query, we find that the profile says that the InactiveTotalTIme under KrpcDataStreamSender is 14.32 seconds while total time under which is 14.41. We want know the meaning of "InactiveTotalTIme" .  Does it indicate a network problem or something else?

 

Thanks.

1 REPLY 1

Re: Understanding the impala profile

Cloudera Employee

The "InactiveTotalTIme" for the "KrpcDataStreamSender" corresponds to the amount of time spent waiting for in-flight RPCs to complete. RPCs are considered complete when they receive a response from the remote server, or if the RPC ends prematurely for other reasons (e.g. cancellation).

 

Is you attach the full runtime profile of the query, it might be easier to debug.