nomad 0.1.2 - problems launching client

[Matt Ho]

I'm attempting to launch a nomad client and am getting the following error:

# nomad agent -config nomad.conf

==> Starting Nomad agent...

==> Nomad agent configuration:

                 Atlas: <disabled>

                Client: true

             Log Level: DEBUG

                Region: global (DC: us-east-1)

                Server: false

==> Nomad agent started! Log data will stream in below:

    2015/10/29 21:34:34 [INFO] client: using state directory /root/data/client

    2015/10/29 21:34:34 [INFO] client: using alloc directory /root/data/alloc

    2015/10/29 21:34:34 [WARN] fingerprint.network: Unable to parse Speed in output of '/sbin/ethtool eth0'

    2015/10/29 21:34:34 [WARN] fingerprint.network: Unable to read link speed from /sys/class/net/eth0/speed

    2015/10/29 21:34:34 [DEBUG] fingerprint.network: Unable to read link speed; setting to default 100

    2015/10/29 21:34:34 [DEBUG] client: applied fingerprints [arch cpu host memory storage network env_aws]

    2015/10/29 21:34:34 [DEBUG] client: available drivers [docker exec]

    2015/10/29 21:34:34 [ERR] yamux: Invalid protocol version: 72

    2015/10/29 21:34:49 [ERR] yamux: Invalid protocol version: 72

    2015/10/29 21:34:49 [ERR] client: failed to register node: rpc error: EOF

    2015/10/29 21:35:13 [ERR] yamux: Invalid protocol version: 72

    2015/10/29 21:35:13 [ERR] client: failed to register node: rpc error: EOF

Here's the config file for the agent:

# Increase log verbosity

log_level = "DEBUG"

# Setup data dir

data_dir = "/root/data"

# list on all addresses

bind_addr = "xxx.xxx.xxx.xxx"

# datacenter location

datacenter = "us-east-1"

client {

  enabled = true

  servers = ["xxx.xxx.xxx.xxx:4646"]

}

Any thoughts as to what this error means?

M

[Armon Dadgar]

Hey Matt,

I think the issue is you are using port 4646 on the servers, that should be 4647.

The 4646 port serves HTTP, which explains why you are seeing so many protocol errors,

as the client is expecting to talk to the RPC port.

Best Regards,
Armon Dadgar

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[Matt Ho]

Sure enough, that was it.  Thanks!  I'm wondering if something needs to change with the documentation on:

https://www.nomadproject.io/docs/agent/config.html

In the section for ports, I read that as ports 4647 and 4648 are only used on server nodes.  Am I mis-interpreting something?

M

[Armon Dadgar]

The ports are only used by the servers to bind to, however the clients still connect to that port. I can see how it's a point of confusion, please open a ticket so that we can improve the documentation. Thanks!

Best Regards,

Armon Dadgar

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