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  1. IMPALA
  2. IMPALA-6852

Add a section to the query profile covering number of fragments instances and total bytes scanned per host

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      Root causing performance issues usually comes down to skew in terms of work done across hosts. Un-even assignment of fragments or bytes scanned per host is a common.
      Making this information readily available in the query profile will help speedup RCA.

      Proposal is to add two tables to the query profile that cover

      • Number of fragments per host
      • Number of bytes scanned per host

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            afan Alice Fan
            mmokhtar Mostafa Mokhtar
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