Re: New Ceph Plugin - assistance

Juan Miguel Olmo Martinez <jolmomar@xxxxxxxxxx> · Thu, 9 Jan 2020 09:01:01 +0100

Hi,

Depending of the Ceph version you can have the files in different places, but in any case is easy to search the file "module.py" in any of your manager hosts, the results will show you the location of the manager plugins.
In Nautilus  they are in  "/usr/share/ceph/mgr/"

You can see the active manager using the command "ceph -s"

A good source of information to see what is happening is the manager log file (in var/log/ceph) in the manager host,

You can change the log level to debug using:
ceph daemon <your-mgr> config set debug_mgr 20/5
restore the log level:
ceph daemon <your-mgr> config set debug_mgr 1/5 

BR

On Wed, Jan 8, 2020 at 4:01 PM Khoury, Rima (Nokia - IL/Kfar Sava) <rima.khoury@xxxxxxxxx> wrote:

Hi,

I did the steps as suggested in the documentation, but the plugin still can not run.
I have tried to get the mgr module path but there is no configuration option for that. Do you know how can I know what is the path?
And is there any command to get details on the active manager? Just to make sure it is running on my host.

Thanks,

From: Juan Miguel Olmo Martinez <jolmomar@xxxxxxxxxx>

Sent: Wednesday, January 8, 2020 4:21 PM

To: Khoury, Rima (Nokia - IL/Kfar Sava) <rima.khoury@xxxxxxxxx>

Cc: dev@xxxxxxx

Subject: Re: New Ceph Plugin - assistance

Hi Rima, 

- Review documentation:

https://docs.ceph.com/docs/master/mgr/modules/#creating-a-module

- Take a look at one example, in this folder you can find several of them:

https://github.com/jmolmo/ceph/tree/master/src/pybind/mgr

Hello: is the most simple manager module

ssh: the most updated

And ... be sure that your manager module files are located in the same host where the active manager is running.

BR

On Wed, Jan 8, 2020 at 2:55 PM Khoury, Rima (Nokia - IL/Kfar Sava) <rima.khoury@xxxxxxxxx> wrote:

Hi there,

I have been trying to add a new plugin to the ceph mgr but can't seem to figure out why it is not working.

I have created a directory under /ceph/mgr/ and added the module.py file there. Afterwards I added the plugin's name to the file /usr/share/ceph-ansible/roles/ceph-mgr/defaults/main.yml under ceph_mgr_modules field. But when I run "ceph mgr module enable <plugin-name>"
 I get this error: Error ENOENT: module 'newplugin' reports that it cannot run on the active manager daemon:  (pass --force to force enablement).

Did anyone try this before and can share some insights. 
This matter is urgent to me so I would really appreciate any help I can get.

Thank you

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-- 

Juan Miguel Olmo Martínez
Senior Software Engineer
Red Hat
jolmomar@xxxxxxxxxx   

-- 
Juan Miguel Olmo Martínez
Senior Software Engineer
Red Hat
jolmomar@xxxxxxxxxx   

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