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  1. Apache Cassandra
  2. CASSANDRA-3497

BloomFilter FP ratio should be configurable or size-restricted some other way

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Details

    • New Feature
    • Status: Resolved
    • Low
    • Resolution: Fixed
    • 1.0.7
    • None
    • None

    Description

      When you have a live dc and purely analytical dc, in many situations you can have less nodes on the analytical side, but end up getting restricted by having the BloomFilters in-memory, even though you have absolutely no use for them. It would be nice if you could reduce this memory requirement by tuning the desired FP ratio, or even just disabling them altogether.

      Attachments

        1. 0001-Add-bloom_filter_fp_chance-to-cli.patch
          2 kB
          Yuki Morishita
        2. 0001-give-default-val-to-fp_chance.patch
          0.9 kB
          Yuki Morishita
        3. 3497-v3.txt
          21 kB
          Jonathan Ellis
        4. 3497-v4.txt
          21 kB
          Jonathan Ellis
        5. CASSANDRA-1.0-3497.txt
          26 kB
          Yuki Morishita

        Issue Links

          is related to

          Improvement - An improvement or enhancement to an existing feature or task. CASSANDRA-4303 Compressed bloomfilters

          • Normal -
          • Resolved

          Activity

            People

              yukim Yuki Morishita
              brandon.williams Brandon Williams
              Yuki Morishita
              Jonathan Ellis
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              2 Vote for this issue
              Watchers:
              7 Start watching this issue

              Dates

                Created:
                Updated:
                Resolved: