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https://issues.apache.org/jira/browse/CASSANDRA-3024?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13103647#comment-13103647
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Terje Marthinussen commented on CASSANDRA-3024:
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As a side note, is there any problems vlq encoding some "unneeded" values. If 
they are that rare, they probably have no real impact on performance?

I did not run any real benchmarks yet, but json2sstable actually ran a tiny bit 
faster (1-2%) with vlq encoding and relative timestamps.

> sstable and message varint encoding
> -----------------------------------
>
>                 Key: CASSANDRA-3024
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-3024
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Core
>            Reporter: Jonathan Ellis
>            Priority: Minor
>             Fix For: 1.1
>
>
> We could save some sstable space by encoding longs and ints as vlong and 
> vint, respectively.  (Probably most "short" lengths would be better as vint 
> as well.)

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