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Posted to commits@cassandra.apache.org by "Jonathan Ellis (JIRA)" <ji...@apache.org> on 2009/12/14 20:39:18 UTC
[jira] Created: (CASSANDRA-633) explore replacing
ConcurrentSkipListMap in ColumnFamily
explore replacing ConcurrentSkipListMap in ColumnFamily
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Key: CASSANDRA-633
URL: https://issues.apache.org/jira/browse/CASSANDRA-633
Project: Cassandra
Issue Type: Task
Reporter: Jonathan Ellis
Priority: Minor
Fix For: 0.9
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[jira] Commented: (CASSANDRA-633) explore replacing
ConcurrentSkipListMap in ColumnFamily
Posted by "Stu Hood (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/CASSANDRA-633?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12790417#action_12790417 ]
Stu Hood commented on CASSANDRA-633:
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Ah, bummer. CSLM is really hard to beat... the JVM devs did some great work there.
I'm still experimenting with the flattened namespace idea in the unified-index branch: it has blossomed into a redesign of the data-file format =x If the flat namespace works well for the disk format, I think we should experiment with doing it for Memtables as well (aka, Memtable as map of (key,name1,name2) -> value).
http://github.com/stuhood/cassandra/tree/unified-index
> explore replacing ConcurrentSkipListMap in ColumnFamily
> -------------------------------------------------------
>
> Key: CASSANDRA-633
> URL: https://issues.apache.org/jira/browse/CASSANDRA-633
> Project: Cassandra
> Issue Type: Task
> Reporter: Jonathan Ellis
> Priority: Minor
> Fix For: 0.9
>
> Attachments: 0001-add-SortableArrayList-as-a-copy-of-harmony-ArrayList-u.txt, 0002-strip-out-references-to-the-rest-of-Harmony-and-add-so.txt, 0003-only-sort-columns-on-demand.txt
>
>
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[jira] Resolved: (CASSANDRA-633) explore replacing
ConcurrentSkipListMap in ColumnFamily
Posted by "Jonathan Ellis (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/CASSANDRA-633?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jonathan Ellis resolved CASSANDRA-633.
--------------------------------------
Resolution: Won't Fix
> explore replacing ConcurrentSkipListMap in ColumnFamily
> -------------------------------------------------------
>
> Key: CASSANDRA-633
> URL: https://issues.apache.org/jira/browse/CASSANDRA-633
> Project: Cassandra
> Issue Type: Task
> Reporter: Jonathan Ellis
> Priority: Minor
> Fix For: 0.6
>
> Attachments: 0001-add-SortableArrayList-as-a-copy-of-harmony-ArrayList-u.txt, 0002-strip-out-references-to-the-rest-of-Harmony-and-add-so.txt, 0003-only-sort-columns-on-demand.txt
>
>
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[jira] Updated: (CASSANDRA-633) explore replacing
ConcurrentSkipListMap in ColumnFamily
Posted by "Jonathan Ellis (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/CASSANDRA-633?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jonathan Ellis updated CASSANDRA-633:
-------------------------------------
Attachment: 0003-only-sort-columns-on-demand.txt
0002-strip-out-references-to-the-rest-of-Harmony-and-add-so.txt
0001-add-SortableArrayList-as-a-copy-of-harmony-ArrayList-u.txt
> explore replacing ConcurrentSkipListMap in ColumnFamily
> -------------------------------------------------------
>
> Key: CASSANDRA-633
> URL: https://issues.apache.org/jira/browse/CASSANDRA-633
> Project: Cassandra
> Issue Type: Task
> Reporter: Jonathan Ellis
> Priority: Minor
> Fix For: 0.9
>
> Attachments: 0001-add-SortableArrayList-as-a-copy-of-harmony-ArrayList-u.txt, 0002-strip-out-references-to-the-rest-of-Harmony-and-add-so.txt, 0003-only-sort-columns-on-demand.txt
>
>
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[jira] Commented: (CASSANDRA-633) explore replacing
ConcurrentSkipListMap in ColumnFamily
Posted by "Jonathan Ellis (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/CASSANDRA-633?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12790400#action_12790400 ]
Jonathan Ellis commented on CASSANDRA-633:
------------------------------------------
my patchset above does not noticably improve insert performance, fwiw.
> explore replacing ConcurrentSkipListMap in ColumnFamily
> -------------------------------------------------------
>
> Key: CASSANDRA-633
> URL: https://issues.apache.org/jira/browse/CASSANDRA-633
> Project: Cassandra
> Issue Type: Task
> Reporter: Jonathan Ellis
> Priority: Minor
> Fix For: 0.9
>
> Attachments: 0001-add-SortableArrayList-as-a-copy-of-harmony-ArrayList-u.txt, 0002-strip-out-references-to-the-rest-of-Harmony-and-add-so.txt, 0003-only-sort-columns-on-demand.txt
>
>
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[jira] Commented: (CASSANDRA-633) explore replacing
ConcurrentSkipListMap in ColumnFamily
Posted by "Stu Hood (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/CASSANDRA-633?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12790398#action_12790398 ]
Stu Hood commented on CASSANDRA-633:
------------------------------------
I'll try and look at this one tonight.
> explore replacing ConcurrentSkipListMap in ColumnFamily
> -------------------------------------------------------
>
> Key: CASSANDRA-633
> URL: https://issues.apache.org/jira/browse/CASSANDRA-633
> Project: Cassandra
> Issue Type: Task
> Reporter: Jonathan Ellis
> Priority: Minor
> Fix For: 0.9
>
> Attachments: 0001-add-SortableArrayList-as-a-copy-of-harmony-ArrayList-u.txt, 0002-strip-out-references-to-the-rest-of-Harmony-and-add-so.txt, 0003-only-sort-columns-on-demand.txt
>
>
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