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From Paul Prescod <>
Subject Memcached protocol?
Date Sun, 04 Apr 2010 19:47:38 GMT
Many Cassandra implementations seem to be memcached+X migrations, and some
might be replacing memcached alone. Has anyone considered making a protocol
handler or proxy that would allow Cassandra to talk the memached binary

jmemcached + Cassandra = easy migration?

I have barely started to consider the impedance mismatch issues, but the
most glaring one is that the memcached namespace is flat, whereas
Cassandra's has several levels of nesting. I think that this could be
managed through configuration files. Either the user could map all Memcached
stuff to a single ColumnFamily, or they could define a convention for
splitting their keys based on special namespace characters like ":" or "_".
The user could say how to interpret keys without enough parts (i.e. whether
to treat the missing part as the keyspace or the columnfamily).

 Paul Prescod

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