Chronos keeps failing

[frankscholten]

@maasg Chronos fails with the following error

[scallop] Error: Excess arguments provided: '/usr/bin/chronos run_jar --http_port 4400 --zk_hosts 172.17.0.3:2181 --master zk://172.17.0.3:2181/mesos --http_port 31309'

Any idea?

[maasg]

The option --http_port appears twice in the command above (4400, 31309). How are you submitting it?

[frankscholten]

See https://github.com/ContainerSolutions/minimesos/blob/master/opt/apps/chronos.json.

It seems Mesos adds an extra --http_port with the port from the configured port range.

[frankscholten]

I think the port 4400 port should be removed from the Marathon file. We don't know in advance which port it will get assigned.

[blijblijblij]

Something changed in the chronos port exposure (PORT0 > HTTP API, and `PORT1 > libprocess), recently I reinstated chronos on our cluster and opted for the recently released chronos 3 with this:

echo "---> start chronos"
docker run -d \
    -e PORT0=4400 \
    -e PORT1=8081 \
    --name chronos --restart always \
    -p 4400:4400 \
    -p 8081:8081 \
    mesosphere/chronos:v3.0.1 \
    --zk_hosts=${MESOS_MASTER_1}:2181 \
    --master=zk://${MESOS_MASTER_1}:2181/mesos \
    --hostname=${MESOS_MASTER_1} \
    --mesos_role=private \
    --mesos_framework_name=chronos

Snippet from https://mesos.github.io/chronos/docs/

To run Chronos with Docker, you must have 2 ports available: one for the HTTP API, and one for libprocess. You must export these ports as environment variables for Chronos to start. For example:

$ docker run --net=host -e PORT0=8080 -e PORT1=8081 mesosphere/chronos:v3.0.0 --zk_hosts 192.168.65.90:2181 --master zk://192.168.65.90:2181/mesos

Your previous link to the chronos blob no longer works, so I can't verify.

Hope this helps @frankscholten and you can add chronos to minimesos

[frankscholten]

Thanks for the heads up @blijblijblij, I will have a look soon.