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  1. Cassandra
  2. CASSANDRA-8434

L0 should have a separate configurable bloom filter false positive ratio

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    Details

    • Type: Improvement
    • Status: Open
    • Priority: Normal
    • Resolution: Unresolved
    • Fix Version/s: 2.1.x
    • Component/s: None
    • Labels:

      Description

      In follow up to CASSANDRA-5371. We now perform size-tiered file selection for compaction if L0 gets too far behind, however as far as I can tell we stick with the CF configured false positive ratio, likely inflating substantially the number of files we visit on average until L0 is cleaned up. Having a a different bf fp for L0 would solve this problem without introducing any significant burden when L0 is not overloaded.

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            • Assignee:
              Unassigned Assign to me
              Reporter:
              benedict Benedict Elliott Smith

              Dates

              • Created:
                Updated:

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