[
https://issues.apache.org/jira/browse/CASSANDRA-4885?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Jason Brown updated CASSANDRA-4885:
-----------------------------------
Attachment: 4885-v2.patch
Attached new patch that removed the row-level BFs. Also, changed places where
we defreeze the BF to just skip the bloom filter as defreeze will build up the
BF in memory (only just to throw it away because it was never referenced - and
now not needed).
> Remove or rework per-row bloom filters
> --------------------------------------
>
> Key: CASSANDRA-4885
> URL: https://issues.apache.org/jira/browse/CASSANDRA-4885
> Project: Cassandra
> Issue Type: Improvement
> Components: Core
> Reporter: Jonathan Ellis
> Assignee: Jason Brown
> Fix For: 2.0
>
> Attachments: 0001-CASSANRDA-4885-Remove-per-row-bloom-filter.patch,
> 0002-CASSANRDA-4885-update-test.patch, 4885-v1.patch, 4885-v2.patch
>
>
> Per-row bloom filters may be a misfeature.
> On small rows we don't create them.
> On large rows we essentially only do slice queries that can't take advantage
> of it.
> And on very large rows if we ever did deserialize it, the performance hit of
> doing so would outweigh the benefit of skipping the actual read.
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira
