I'm doing some work on replacing OpsCenter in out setup. I ended creating a
Docker container which contains the following features:
- Cassandra 2.2.7
- MX4J (a JMX to REST bridge) as a java-agent
- metrics-graphite-3.1.0.jar (export some but not all JMX to graphite)
- a custom ruby which uses MX4J to export some JMX metrics to graphite
which we don't otherwise get.
With this I will get all our cassandra instances and their JMX exposed data
to graphite, which allows us to use Grafana and Graphite to draw pretty
dashboards.
In addition I started writing some code which currently provides the
following features:
- A dashboard which provides a similar ring view what OpsCenter does, with
onMouseOver features to display more info on each node.
- Simple HTTP GET/POST based api to do
- Setup a new non-vnode based cluster
- Get a JSON blob on cluster information, all its tokens, machines and
so on
- Api for new cluster instances so that they can get a token slot from
the ring when they boot.
- Option to kill a dead node and mark its slot for replace, so the new
booting node can use cassandra.replace_address option.
The node is not yet packaged in any way for distribution and some parts
depend on our Chef installation, but if there's interest I can publish at
least some parts from it.
- Garo
On Thu, Jul 14, 2016 at 10:54 AM, Romain Hardouin <[email protected]>
wrote:
> Do you run C* on physical machine or in the cloud? If the topology doesn't
> change too often you can have a look a Zabbix. The downside is that you
> have to set up all the JMX metrics yourself... but that's also a good point
> because you can have custom metrics. If you want nice graphs/dashboards you
> can use Grafana to plot Zabbix data. (We're also using SaaS but that's not
> open source).
> For the rolling restart and other admin stuff we're using Rundeck. It's a
> great tool when working in a team.
>
> (I think it's time to implement an open source alternative to OpsCenter.
> If some guys are interested I'm in.)
>
> Best,
>
> Romain
>
>
>
>
> Le Jeudi 14 juillet 2016 0h01, Ranjib Dey <[email protected]> a écrit :
>
>
> we use datadog (metrics emitted as raw statsd) for the dashboard. All
> repair & compaction is done via blender & serf[1].
> [1]https://github.com/pagerduty/blender
>
>
> On Wed, Jul 13, 2016 at 2:42 PM, Kevin O'Connor <[email protected]> wrote:
>
> Now that OpsCenter doesn't work with open source installs, are there any
> runs at an open source equivalent? I'd be more interested in looking at
> metrics of a running cluster and doing other tasks like managing
> repairs/rolling restarts more so than historical data.
>
>
>
>
>
