ache.org
Subject: Re: Consequences of
having many columns
Currently there is a limitation that each row must fit in memory (with
some not insignificant overhead), thus having lots of columns per row can
trigger out-of-memory errors. This limitation should be removed in a future
release.
: Tuesday, July 13, 2010 8:41 AM
To: user@cassandra.apache.org
Subject: Re: Consequences of having many columns
Currently there is a limitation that each row must fit in memory (with some not
insignificant overhead), thus having lots of columns per row can trigger
out-of-memory errors. This
Currently there is a limitation that each row must fit in memory (with some
not insignificant overhead), thus having lots of columns per row can trigger
out-of-memory errors. This limitation should be removed in a future
release.
Please see:
- http://wiki.apache.org/cassandra/CassandraLimitation
I recently ran across a blog posting with a comment from a Cassandra committer
that indicated a performance penalty when having a large number of columns per
row/key. Unfortunately I didn't bookmark the blog posting and now I can't find
it. Regardless, since our current plan and design is to h
