If you are talking about scaling: Cassandra scaling is absolutely horizontal
without namenodes or other Mongo-bulshit-like intermediate daemons. And that’s
why one big cluster has the same throughput as many smaller clusters.
What will you do when your small clusters will exceed it’s capacity? Ca
we have choices of making one big cluster vs a few small clusters. I am trying
to get pros and cons for both options in genera.
Thanks.
-Wei
Sent from my Samsung smartphone on AT&T
Original message
Subject: Re: one big cluster vs multiple smaller clusters
From: Jon Haddad
This is a pretty vague question. What are you trying to achieve?
On Oct 12, 2013, at 9:05 PM, Wei Zhu wrote:
> Hi,
> As we bring more use cases to Cassandra, we have been thinking about the best
> way to host it. Let's say we will have 15 physical machines available, we can
> use all of them
Hello,
I'm trying to change compression on keyspace "system" from snappy to LZ4 in
cassandra 1.2.10
This keyspace is read-only and command:
USE system;
ALTER TABLE "hints" WITH compression = { 'sstable_compression' :
'LZ4Compressor'};
fails with:
Bad Request: system keyspace is not user-modifiab
I was able to connect to test cluster using
deepakkv@ubuntu:~/ebay/softwares/apache-cassandra-2.0.1$ bin/cassandra-cli
-h localhost -p 9160
Connected to: "Test Cluster" on localhost/9160
Welcome to Cassandra CLI version 2.0.1
Please consider using the more convenient cqlsh instead of CLI
CQL3 is f
Am unable to connect to single node "Test Cluster" from casssandra client.
Upon starting server, i see the following logs
deepakkv@ubuntu:~/ebay/softwares/apache-cassandra-2.0.1$ bin/cassandra -f
xss = -ea -javaagent:bin/../lib/jamm-0.2.5.jar -XX:+UseThreadPriorities
-XX:ThreadPriorityPolicy=42
Thanks.
Worked with 1.7
$ echo $JAVA_HOME
/usr/lib/jvm/java-7-oracle
$ java -version
java version "1.7.0_40"
Java(TM) SE Runtime Environment (build 1.7.0_40-b43)
Java HotSpot(TM) 64-Bit Server VM (build 24.0-b56, mixed mode)
deepakkv@ubuntu:~/ebay/softwares/apache-cassandra-2.0.1$ bin/cassandra -
