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From Brandon Williams <>
Subject Re: map/reduce on Cassandra
Date Mon, 25 Jan 2010 19:18:47 GMT
On Mon, Jan 25, 2010 at 1:13 PM, Ryan Daum <> wrote:

> I agree with what Jeff says here about RandomPartitioner support being key.

> For my purposes with map/reduce I'd personally be fine with some
> general all-keys dump utility that wrote contents of one node to a
> file, and then just write my own integration from that file into
> Hadoop, etc..
> I guess I'm thinking something similar to sstable2json except that
> unfortunately sstable2json will dump replica data not just the local
> node's data. Getting the contents of the commitlog into the file would
> be nice, too.

bin/sstablekeys will dump just the keys from an sstable without row
deserialization overhead, but it can't introspect a commitlog.


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