cassandra-commits mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Stu Hood (JIRA)" <j...@apache.org>
Subject [jira] Commented: (CASSANDRA-1472) Add bitmap secondary indexes
Date Tue, 11 Jan 2011 10:31:51 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-1472?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12980046#action_12980046
] 

Stu Hood commented on CASSANDRA-1472:
-------------------------------------

Summary of tickets to open post commit:
* Online indexing
* Use sampling to improve bin selection and eliminate lumpy bins
* Consider/benchmark replacing memtable brute-force-filtering with an in-memory secondary
index
* Implement OrBiC projection (note that this also benefits from compression and a block based
format as provided by Avro)
* Expose index metrics via JMX
* Handle BMT gracefully

> Add bitmap secondary indexes
> ----------------------------
>
>                 Key: CASSANDRA-1472
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-1472
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Core
>            Reporter: Stu Hood
>            Assignee: Stu Hood
>             Fix For: 0.7.1
>
>         Attachments: 0.7-1472-v5.tgz, 0.7-1472-v6.tgz, 0019-Rename-bugfixes-and-fileclose.txt,
1472-v3.tgz, 1472-v4.tgz, 1472-v5.tgz, anatomy.png, v4-bench-c32.txt
>
>
> Bitmap indexes are a very efficient structure for dealing with immutable data. We can
take advantage of the fact that SSTables are immutable by attaching them directly to SSTables
as a new component (supported by CASSANDRA-1471).

-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.


Mime
View raw message