Is it possible to configure Cassandra in such a way that a
node only every asks itself for the data, and if so what sort of
effect will that have on read performance?
Check out the RingCache class which lets you make your clients smart enough to
ask the right server. (Also, if all nodes have all
We see this behavior as well with 0.6, heap usage graphs look almost identical.
The GC is a noticeable bottleneck, we've tried jdku19 and jrockit vm's. It
basically kills any kind of soft real time behavior.
From: Masood Mortazavi [mailto:masoodmortaz...@gmail.com]
Sent: Monday, April 19, 2010
Has anyone done any tuning on the jvm gc options or are the options included in
bin/cassandra.in.sh basically the best choice?
I'm working on getting our latency as consistent as possible, and the gc likes
to kick off 60+ms periods of unavailability for a node, which for my
application leads
I wanted to check my understanding of the load balance operation. Let's say I
have 5 nodes, each of them has been assigned at startup 1/5 of the ring, and
the load is equal across them (say using random partitioner). The load on the
cluster gets high, so I add a sixth server. During bootstrap,
