The reason I ask, is that I'm planning on setting up a small HBase cluster in ec2..

having 3 to 5 instances just for zookeeper, while having only 3 to 5 instances for Hbase.. it sounds lop-sided. :)

Does anyone here have any experience with HBase in EC2?


Ryan Rawson wrote:
I run my ZK quorum on my regionservers, but I also have 16 GB ram per
regionserver.  I used to run 1gb, and never had problems. Now with
hbase managing the quorum I have 5gb ram, and its probalby over kill
but better save than sorry.

On Tue, Jul 14, 2009 at 6:07 PM, Nitay<[email protected]> wrote:
Hi Fernando,

It is recommended that you run ZooKeeper separate from the Region Servers.
On the memory side, our use of ZooKeeper in terms of data stored is minimal
currently. However you definitely don't want it to swap and you want to be
able to handle a large number of connections. A safe value would be
something like 1GB.

-n

On Tue, Jul 14, 2009 at 2:58 PM, Fernando Padilla <[email protected]> wrote:

So.. what's the recommendation for zookeeper?

should I run zookeeper nodes on the same region servers?
should I run zookeeper nodes external to the region servers?
how much memory should I give zookeeper, if it's just used for hbase?

Reply via email to