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  1. IMPALA
  2. IMPALA-753

Parallelize HBase scan

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Details

    • Improvement
    • Status: Resolved
    • Minor
    • Resolution: Won't Fix
    • Impala 1.0
    • None
    • Backend
    • None

    Description

      Impala chains all the regions on the same region sever and scan the data using one scan. The lack of parallel scan within the region server makes Impala slower than Hive when scanning HBase table.

      Impala can simply parallelize scanning regions within the same region server.

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          relates to

          Epic - Created by Jira Software - do not edit or delete. Issue type for a big user story that needs to be broken down. IMPALA-3902 Multi-threaded query execution

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Resolved

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              Unassigned Unassigned
              alan@cloudera.com Alan Choi
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              Dates

                Created:
                Updated:
                Resolved: