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  1. IMPALA
  2. IMPALA-3741

Push bloom filters to Kudu scanners

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    Description

      Impala relies on bloom filters to reduce number of rows from coming out of the scan node for selective joins.
      Queries get up to 20x speedup, not having bloom filter support in Kudu will create a big performance gap between Parquet and Kudu.
      https://github.com/cloudera/Impala/blob/cdh5-trunk/be/src/util/bloom-filter.h

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          causes

          Documentation - Documentation or Website IMPALA-13250 Document ENABLED_RUNTIME_FILTER_TYPES query option

          • Major - Major loss of function.
          • Resolved
          is related to

          Improvement - An improvement or enhancement to an existing feature or task. IMPALA-9691 Support Kudu Timestamp and Date Bloom Filter

          • Major - Major loss of function.
          • Resolved

          New Feature - A new feature of the product, which has yet to be developed. IMPALA-4252 Add RuntimeFilters for min/max at KuduScanNode

          • Major - Major loss of function.
          • Resolved
          relates to

          New Feature - A new feature of the product, which has yet to be developed. KUDU-2483 Scan tablets with bloom filter

          • Major - Major loss of function.
          • Resolved

          Improvement - An improvement or enhancement to an existing feature or task. IMPALA-9789 Disable ineffective bloom filters for Kudu scan

          • Major - Major loss of function.
          • Resolved

          Activity

            People

              wzhou Wenzhe Zhou
              mjacobs Matthew Jacobs
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              Dates

                Created:
                Updated:
                Resolved: