Debian 7 : The reported error was: float() argument must be a string or a number

[romainrbr]

Getting an error while trying to generate a report for any number of servers.
Same command is working on OSX without any issue.

ansible-cmdb -d out/
data_dir = /usr/lib/ansible-cmdb/ansiblecmdb/data
tpl_dir = /usr/lib/ansible-cmdb/ansiblecmdb/data/tpl
static_dir = /usr/lib/ansible-cmdb/ansiblecmdb/data/static
Parsing fact dir: out/
Reading host facts from out/test.server.com
template file = /usr/lib/ansible-cmdb/ansiblecmdb/data/tpl/html_fancy.tpl
Template params: {'lib_dir': '/usr/lib/ansible-cmdb/ansiblecmdb/data', 'version': '1.11', 'data_dir': '/usr/lib/ansible-cmdb/ansiblecmdb/data', 'log': <logging.RootLogger object at 0x2163210>, 'columns': None}
Rendering host overview for test.server.com


Traceback (most recent call last):
  File "/usr/bin/ansible-cmdb", line 108, in <module>
    out = mytemplate.render(hosts=ansible.hosts, **params)
  File "/usr/lib/ansible-cmdb/mako/template.py", line 443, in render
    return runtime._render(self, self.callable_, args, data)
  File "/usr/lib/ansible-cmdb/mako/runtime.py", line 803, in _render
    **_kwargs_for_callable(callable_, data))
  File "/usr/lib/ansible-cmdb/mako/runtime.py", line 835, in _render_context
    _exec_template(inherit, lclcontext, args=args, kwargs=kwargs)
  File "/usr/lib/ansible-cmdb/mako/runtime.py", line 860, in _exec_template
    callable_(context, *args, **kwargs)
  File "/usr/lib/ansible-cmdb/ansiblecmdb/data/tpl/html_fancy.tpl", line 487, in render_body
    <td>${col["func"](host)}</td>
  File "/usr/lib/ansible-cmdb/ansiblecmdb/data/tpl/html_fancy.tpl", line 0, in col_mem_usage

  File "/usr/lib/ansible-cmdb/ansiblecmdb/data/tpl/html_fancy.tpl", line 106, in render_col_mem_usage
    <span style="display:none">${'%f' % (float(i["nocache"]["used"]) / i["real"]["total"])}</span>
TypeError: float() argument must be a string or a number

Whoops, it looks like something went wrong while rendering the template.

The reported error was: float() argument must be a string or a number

The output is probably not correct.
You can report a bug on the issue tracker:

  https://github.com/fboender/ansible-cmdb/issues

Please include the debugging output (-d switch) in the report!

Additional infos

cat /etc/debian_version
7.9

ansible-cmdb --version
ansible-cmdb v1.11

ansible --version
ansible 2.1.0
  configured module search path = library/

[fboender]

Hey Romain!

Thanks for the bug report. It's weird, cause I can't reproduce it with Debian v7.9. I'm running Ansible 2.0.0.2, so it could be that the problem is somewhere in between v2.0 and v2.1.

Can you paste the ""ansible_memory_mb" section from the offending host (looks like it's test.server.com)? That's where the problem should be located.

[romainrbr]

 "ansible_memory_mb": {
      "nocache": {
        "free": null,
        "used": null
      }

Running ansible-cmdb on OSX with the same Json file doesn't trigger any error.

[fboender]

Hm, that is very strange. It should look like this:

"nocache": { "used": 41, "free": 961 }

[romainrbr]

The host on which I ran ansible -m setup is an OpenVZ VM, which is why there is no cache value.

cat /proc/meminfo | grep Buffers
Buffers:               0 kB

[fboender]

Ah, that makes sense! Is there a valid "real" action with proper numbers, or is that also unavailable?

[fboender]

Sorry, I meant "section" instead of "action"

[romainrbr]

I don't think so.

Would it be possible to set the value to 0 if it's returned as "null" ?

[fboender]

I've just pushed a fix that returns "n/a" for that column in the host overview. It should be able to handle those hosts now. I'ts not a great fix, but the best I can do right now.

[romainrbr]

Thanks a lot!

[fboender]

You're welcome! Thanks for reporting the bug!

[fboender]

Oh, if the swap column is also not available, you may also get an error on that. I would be helpful if I had the whole output of ansible setup, so I can check everything. Could you send that to my email address (ferry.boender@gmail.com), or is it too sensitive?