2. I have used the same configuration (3 machines with 4GB RAM) and I
got an Out of memory error on compactation each time trying to compact 4
x 128MB sstables. Tried different configuration incl Java Opts, same
result. When I have used 16GB ram machine everything worked like a charm.
Pe 04.05.2010 12:28, vineet daniel a scris:
As you havent specified all the details pertaining to filters and your
data layout (structure) at a very high level what i can suggest is
that you need to create a seperate CF for each filter.
On Sat, May 1, 2010 at 5:04 PM, Rakesh Rajan <rakes...@gmail.com
<mailto:rakes...@gmail.com>> wrote:
I am evaluating cassandra to implement activity streams. We
currently have over 1000000 feeds with total entries exceeding
320000000 implemented using redis ( ~320 entries / feed). Would
like hear from the community on how to use cassandra to solve the
following cases:
1. Ability to fetch entries by applying a few filters ( like
show me only likes from a given user). This would include
range query to support pagination. So this would mean
indices on a few columns like the feed id, feed type etc.
2. We have around 3 machines with 4GB RAM for this purpose and
thinking of having replication factor 2. Would 4GB * 3 be
enough for cassandra for this kind of data? I read that
cassandra does not keep all the data in memory but want to
be sure that we have the right server config to handle this
data using cassandra.
Thanks,
Rakesh
