Colin;
Ceph is a block based storage architecture based on RADOS. It comes with its
own replication & rebalancing along with a map of the storage layer.
Some more details & similarities: a)Ceph stores a client’s data as objects
within storage pools. (think of C* partitions)b) Using the
1. What do you mean by "on top of Ceph"?
2. What's he goal?
-- Original Message --
From: "Colin Taylor" mailto:colin.tay...@gmail.com>>
To: "user@cassandra.apache.org"
mailto:user@cassandra.apache.org>>
Sent: 01.02.2015 12:26:42
Subject: Cassandra on Ceph
I may be forced to run Cassandra
I may be forced to run Cassandra on top of Ceph. Does anyone have
experience / tips with this. Or alternatively, strong reasons why this
won't work.
cheers
Colin
HI Asit;
Question 1) Am I using the right hardware as of now I am testing say 10
record reads.
Answer: Recommend looking at either the 'sar' output logs & watching nodetool
cfstats & watching your system.log files to track hardware usage & JVM
presssure. As a rule of thumb, its recomme
Saurabh;
a) How exactly are the three nodes hosted. b) Can you take down node 2 and
create the keyspace from node 1c) Can you take down node 1 and create the
keyspace from node2d) Do the nodes see each other with 'nodetool status'
cheersJan/
C* Architect
On Saturday, January 31
Something that can cause weird behavior is the machine clocks not being
properly synced. I didn't read the thread in full detail, so disregard
this if it is not the case.
--
--
HI Asit,
The only help I'm going to give is on point 3), as I have little experience
with 2) and 1) depends on a lot of factors.
For testing the workload use this:
http://www.datastax.com/documentation/cassandra/2.1/cassandra/tools/toolsCStress_t.html
It probably covers all your testing needs.
Re
