cassandra-commits mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Yuki Morishita (Updated) (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (CASSANDRA-3497) BloomFilter FP ratio should be configurable or size-restricted some other way
Date Wed, 04 Jan 2012 16:42:41 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-3497?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Yuki Morishita updated CASSANDRA-3497:
--------------------------------------

    Attachment: 0001-Add-bloom_filter_fp_chance-to-cli.patch

Patch attached so that cli show schema or describe commands show bloom_filter_fp_chance if
set.
                
> 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

        

Mime
View raw message