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Brandon Williams commented on CASSANDRA-3497: --------------------------------------------- Note for others trying to disable their BF: despite earlier discussion on this ticket, zero is NOT disabled, but instead sets it back to the default, since 0 false positives is invalid. You actually want to set it to 1 to have the smallest possible filter. > BloomFilter FP ratio should be configurable or size-restricted some other way > ----------------------------------------------------------------------------- > > Key: CASSANDRA-3497 > URL: https://issues.apache.org/jira/browse/CASSANDRA-3497 > Project: Cassandra > Issue Type: New Feature > Components: Core > Reporter: Brandon Williams > Assignee: Yuki Morishita > Priority: Minor > Fix For: 1.0.7 > > Attachments: 0001-Add-bloom_filter_fp_chance-to-cli.patch, > 0001-give-default-val-to-fp_chance.patch, 3497-v3.txt, 3497-v4.txt, > CASSANDRA-1.0-3497.txt > > > 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. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa For more information on JIRA, see: http://www.atlassian.com/software/jira