Dear all,
Could you show me the advantage and disadvantage of each partition type:
~ org.apache.cassandra.dht.RandomPartitioner,
~ org.apache.cassandra.dht.OrderPreservingPartitioner, and
~ org.apache.cassandra.dht.CollatingOrderPreservingPartitioner.
Thank a lot for support.
--
Best
On Mon, Dec 28, 2009 at 9:07 AM, Joe Stump j...@joestump.net wrote:
~ org.apache.cassandra.dht.OrderPreservingPartitioner, and
~ org.apache.cassandra.dht.CollatingOrderPreservingPartitioner.
They're both ordering partitioners. The difference is that one is binary
order and the other is
Attached is the first alpha (0.01) version of my EasyCassandra.pm Perl
interface to Cassandra. I am also attaching a demo script that will
show the intended usage, but basically the idea is that the user can
express gets, puts, and removals in shorthand like Subscribed/-1[]
to mean the latest
On Mon, 28 Dec 2009 08:07:18 -0700 Joe Stump j...@joestump.net wrote:
JS The advantage of the random partitioner is that it randomly
JS distributes your keys across the cluster. This (theoretically)
JS avoids key clustering on nodes. The big disadvantage is that you
JS can't do key range
On Mon, 28 Dec 2009 09:53:56 -0700 Joe Stump j...@joestump.net wrote:
JS On Dec 28, 2009, at 9:51 AM, Ted Zlatanov wrote:
If each node does a key enumeration, can the results be aggregated
somehow? It seems useful to get a list of all the keys across the
cluster even if it's not 100%
On Dec 28, 2009, at 11:00 AM, Ted Zlatanov wrote:
Is this worth a JIRA feature request? Or is it something Cassandra will
never support fully? From the user's perspective it's very useful.
I don't know why it'd be very useful to be honest. Lots of us have CF's with
billions of keys. Ours,
On Mon, 28 Dec 2009 11:02:30 -0700 Joe Stump j...@joestump.net wrote:
JS On Dec 28, 2009, at 11:00 AM, Ted Zlatanov wrote:
Is this worth a JIRA feature request? Or is it something Cassandra will
never support fully? From the user's perspective it's very useful.
JS I don't know why it'd be
On Mon, 28 Dec 2009 11:44:27 -0700 Joe Stump j...@joestump.net wrote:
JS On Dec 28, 2009, at 11:40 AM, Ted Zlatanov wrote:
I can see that's a problem. In my case, row keys represent switches in
production so I don't expect more than a few hundred. An application
can't find out how many
