So, I did a lot of dial turning and heap tuning (came across this nice
writeup about JVM tuning
http://blog.mikiobraun.de/2010/08/cassandra-gc-tuning.html) still no luck
with 1.2.9. I gave up and upgraded to 1.2.12 and since then things are much
much better. I don't run into the heap issue that I u
Yes, we saw this same behavior.
A couple of months ago, we moved a large portion of our data out of
Postgres and into Cassandra. The initial migration was done in a
"distributed" manner: we had 600 (or 800, can't remember) processes
reading from Postgres and writing to Cassandra in tight loops.
Hello,
We moved to cassandra 1.2.9 from 1.0.11 to take advantage of the off-heap
bloom filters and other improvements.
We see a lot of messages dropped under high load conditions. We noticed
that when we do heavy read AND write simultaneously (we read first and
check whether the key exists if not
