10:05 p.m.
I was testing a little bit with Hawkular-Services + Cassandra cluster
using docker containers, I created a GitHub repository with my setup:
https://github.com/rubenvp8510/hwk-cassandra-docker
It seems to work fine, at least on my environment, I did some different
tests but I couldn't test more than 3 nodes on my machine, but hopefully
it will work for N nodes.
Some issues I found:
- Sometimes hawkular throws a timeout exception "Cassandra timeout
during read query at consistency LOCAL_ONE", I only managed to reproduce
it 2 times.
- This setup is not enough robust because the Keyspace has replica
factor of 1, so if one node dies hawkular-services started complain
about it.
Regards
8:23 a.m.
If you haven’t already you should look at https://github.com/tobert/cassandra-docker
<https://github.com/tobert/cassandra-docker> for tips on how to set up the cassandra
container.
On Sep 28, 2016, at 11:05 PM, Ruben Vargas Palma
<rvargasp(a)redhat.com> wrote:
I was testing a little bit with Hawkular-Services + Cassandra cluster
using docker containers, I created a GitHub repository with my setup:
https://github.com/rubenvp8510/hwk-cassandra-docker
It seems to work fine, at least on my environment, I did some different
tests but I couldn't test more than 3 nodes on my machine, but hopefully
it will work for N nodes.
Some issues I found:
- Sometimes hawkular throws a timeout exception "Cassandra timeout
during read query at consistency LOCAL_ONE", I only managed to reproduce
it 2 times.
- This setup is not enough robust because the Keyspace has replica
factor of 1, so if one node dies hawkular-services started complain
about it.
Regards
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10:21 a.m.
Hello Ruben,
Thank you for your research. I see the repository contains docker-compose
functionality. Unless something changed recently, docker-compose is no-go
for orchestration.
Here are two things I am looking for:
1) Orchestration of C* cluster setup via bash
2) Ability to scale (expand or shrink) the C* cluster via the orchestration
method from 1) after the initial installation.
Did you do any work or investigation regarding 1 and 2 above?
Thank you,
Stefan Negrea
On Wed, Sep 28, 2016 at 10:05 PM, Ruben Vargas Palma <rvargasp(a)redhat.com>
wrote:
I was testing a little bit with Hawkular-Services + Cassandra
cluster
using docker containers, I created a GitHub repository with my setup:
https://github.com/rubenvp8510/hwk-cassandra-docker
It seems to work fine, at least on my environment, I did some different
tests but I couldn't test more than 3 nodes on my machine, but hopefully
it will work for N nodes.
Some issues I found:
- Sometimes hawkular throws a timeout exception "Cassandra timeout
during read query at consistency LOCAL_ONE", I only managed to reproduce
it 2 times.
- This setup is not enough robust because the Keyspace has replica
factor of 1, so if one node dies hawkular-services started complain
about it.
Regards
_______________________________________________
hawkular-dev mailing list
hawkular-dev(a)lists.jboss.org
https://lists.jboss.org/mailman/listinfo/hawkular-dev
11:08 a.m.
Hello Stefan.
Yes, initially I was working using docker without docker-compose, but
for convenience and because I didn't know the restriction about compose,
I decided to use compose at the end. I'll update my repository with the
work that I have on bash.
On 09/29/2016 10:21 AM, Stefan Negrea wrote:
Hello Ruben,
Thank you for your research. I see the repository contains
docker-compose functionality. Unless something changed recently,
docker-compose is no-go for orchestration.
Here are two things I am looking for:
1) Orchestration of C* cluster setup via bash
2) Ability to scale (expand or shrink) the C* cluster via the
orchestration method from 1) after the initial installation.
Did you do any work or investigation regarding 1 and 2 above?
Thank you,
Stefan Negrea
On Wed, Sep 28, 2016 at 10:05 PM, Ruben Vargas Palma
<rvargasp(a)redhat.com <mailto:rvargasp@redhat.com>> wrote:
I was testing a little bit with Hawkular-Services + Cassandra cluster
using docker containers, I created a GitHub repository with my setup:
https://github.com/rubenvp8510/hwk-cassandra-docker
<https://github.com/rubenvp8510/hwk-cassandra-docker>
It seems to work fine, at least on my environment, I did some
different
tests but I couldn't test more than 3 nodes on my machine, but
hopefully
it will work for N nodes.
Some issues I found:
- Sometimes hawkular throws a timeout exception "Cassandra timeout
during read query at consistency LOCAL_ONE", I only managed to
reproduce
it 2 times.
- This setup is not enough robust because the Keyspace has replica
factor of 1, so if one node dies hawkular-services started complain
about it.
Regards
_______________________________________________
hawkular-dev mailing list
hawkular-dev(a)lists.jboss.org <mailto:hawkular-dev@lists.jboss.org>
https://lists.jboss.org/mailman/listinfo/hawkular-dev
<https://lists.jboss.org/mailman/listinfo/hawkular-dev>
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3:49 p.m.
Hi,
I updated my repository with a basic bash script that allow you to
launch more nodes in different hosts and query the status of the
cluster, it is in pure bash and I used ssh for connecting to the remote
hosts.
(https://github.com/rubenvp8510/hwk-cassandra-docker/tree/master/bash)
This is very basic but pure bash (no composer), there is a lot of things
to do to improve this..
I was looking for another alternatives, Docker has his own orchestration
mechanism but it is only available for the latest version (1.12), for
old versions you could use docker-swarm but I think like with compose,
this won't be available on this environment.
Other alternative to SSH is use docker-api but it requires some
configurations on the remote hosts..
On 09/29/2016 03:57 PM, Juraci Paixão Kröhling wrote:
On 29.09.2016 17:21, Stefan Negrea wrote:
> docker-compose is no-go for orchestration.
Why's that? I think we use it somewhere in APM as well.
- Juca.
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Ruben Vargas Palma -
Stefan Negrea