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Date: Fri, 17 Feb 2012 14:03:33 +0100
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Subject: Re: cassandra on ec2 lock-ups
From: Pierre-Yves Ritschard <pyr@spootnik.org>
To: user <user@cassandra.apache.org>
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sorry for not doing my homework properly:
http://wiki.apache.org/cassandra/FAQ#ubuntu_hangs

On Fri, Feb 17, 2012 at 2:00 PM, Pierre-Yves Ritschard <pyr@spootnik.org> wrote:
> Hi,
>
> I've experienced several node lock-ups on EC2 instances. I'm running
> with the following set-up:
>
> heap-new: 800M
> max-heap: 8G
> instance type: m2.xlarge
>
> java is
> java version "1.6.0_26"
> Java(TM) SE Runtime Environment (build 1.6.0_26-b03)
> Java HotSpot(TM) 64-Bit Server VM (build 20.1-b02, mixed mode)
>
> running on ubuntu 11.04 and the apache cassandra packages + jna installed
>
> All my initial tokens are computed and set in cassandra.yaml according
> to the number of nodes present, the seed list is the ip of the first
> node.
>
> I am seeing a very strange behavior where on startup a node will
> lock-up the machine, ssh is still possible but ps hangs on the
> cassandra process which seems to be doing nothing.