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From "Marcus Eriksson (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (CASSANDRA-3127) Message (inter-node) compression
Date Tue, 05 Jun 2012 08:43:23 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-3127?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Marcus Eriksson updated CASSANDRA-3127:
---------------------------------------

    Attachment: CASSANDRA-3127-snappy.patch
    
> Message (inter-node) compression
> --------------------------------
>
>                 Key: CASSANDRA-3127
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-3127
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Core
>            Reporter: Sylvain Lebresne
>            Assignee: Marcus Eriksson
>            Priority: Minor
>             Fix For: 1.2
>
>         Attachments: 0001-CASSANDRA-3127-compress-messages-between-nodes.patch, CASSANDRA-3127-snappy.patch,
CASSANDRA-3127.patch, CHECK_SIZES-CASSANDRA-3127.patch
>
>
> CASSANDRA-3015 adds compression of streams. But it could be useful to also compress some
messages.
> Compressing messages is easy, but what may be little bit trickier is when and what messages
to compress to get the best performances.
> The simple solution would be to just have it either always on or always off. But for
very small messages (gossip?) that may be counter-productive. On the other side of the spectrum,
this is likely always a good choice to compress for say the exchange of merkle trees across
data-centers. We could maybe define a size of messages after which we start to compress. Maybe
the option to only compress for cross data-center messages would be useful too (but I may
also just be getting carried away). 

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