You are viewing a plain text version of this content. The canonical link for it is here.

Posted to commits@cassandra.apache.org by "Benedict (JIRA)" <ji...@apache.org> on 2014/12/06 16:15:12 UTC

[jira] [Created] (CASSANDRA-8434) L0 should have a separate configurable bloom filter false positive ratio

Benedict created CASSANDRA-8434:
-----------------------------------

             Summary: L0 should have a separate configurable bloom filter false positive ratio
                 Key: CASSANDRA-8434
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-8434
             Project: Cassandra
          Issue Type: Improvement
          Components: Core
            Reporter: Benedict
             Fix For: 2.0.12, 2.1.3


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.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)