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From "Jaakko Laine (JIRA)" <j...@apache.org>
Subject [jira] Commented: (CASSANDRA-617) gossiper scalability
Date Mon, 14 Dec 2009 13:33:18 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-617?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12790142#action_12790142
] 

Jaakko Laine commented on CASSANDRA-617:
----------------------------------------

Does somebody have a good suggestion for compression algorithm/implementation? I tested LZF
from Voldemort and java.util.zip. Zip compresses gossip data roughly on 4~5:1 ratio (or 2~3:1
for smaller messages). LZF seems to be unsuitable for this kind of data, as compression ratio
was only about 40-60%. This was a very quick test, so I might have done something wrong, though.


> gossiper scalability
> --------------------
>
>                 Key: CASSANDRA-617
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-617
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Core
>    Affects Versions: 0.5
>            Reporter: Jaakko Laine
>             Fix For: 0.5
>
>         Attachments: averages.png, spread_100.png, spread_50.png, spread_90.png
>
>
> Improve gossiper scalability.

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