circus-web sends blank page

[pcdinh]

This issue has been reported at circus-tent/circus#815

[pcdinh]

I started circus-web 0.5 manually and found the following log:

circushttpd --port 8089
2014-09-04 13:35:12 circus-web[64049] [INFO] Starting circus web ui on 0.0.0.0:8089
2014-09-04 13:36:34 tornado.access[64049] [INFO] 302 GET / (127.0.0.1) 2.88ms
2014-09-04 13:36:34 tornado.access[64049] [INFO] 200 GET /connect/ (127.0.0.1) 38.53ms
2014-09-04 13:36:37 tornado.access[64049] [INFO] 302 POST /connect/ (127.0.0.1) 9.91ms


Traceback (most recent call last):
  File "/usr/local/lib/python2.7/dist-packages/circusweb/circushttpd.py", line 122, in render_template
    return template.generate(**namespace)
  File "/usr/local/lib/python2.7/dist-packages/mako/template.py", line 412, in render
    return runtime._render(self, self.callable_, args, data)
  File "/usr/local/lib/python2.7/dist-packages/mako/runtime.py", line 766, in _render
    **_kwargs_for_callable(callable_, data))
  File "/usr/local/lib/python2.7/dist-packages/mako/runtime.py", line 798, in _render_context
    _exec_template(inherit, lclcontext, args=args, kwargs=kwargs)
  File "/usr/local/lib/python2.7/dist-packages/mako/runtime.py", line 824, in _exec_template
    callable_(context, *args, **kwargs)
  File "/usr/local/lib/python2.7/dist-packages/circusweb/templates/base.html", line 109, in render_body
    ${self.body()}
  File "/usr/local/lib/python2.7/dist-packages/circusweb/templates/index.html", line 105, in render_body
    ${draw_graph_div(plugin, plugin.split(':')[1].replace('-', '.'), True, endpoint=stat_endpoint)}
  File "/usr/local/lib/python2.7/dist-packages/circusweb/templates/index.html", line 1, in draw_graph_div
    <%inherit file="base.html"/>
  File "/usr/local/lib/python2.7/dist-packages/circusweb/templates/index.html", line 68, in render_draw_graph_div
    <div style="width: 20px; float: right; margin-right: 10px;"><a class="${controller.get_status(watcher, endpoint)}" title="${controller.get_status(watcher, endpoint)}" href="${reverse_url('switch_status', endpoint, name=watcher)}"></a></div>
  File "/usr/local/lib/python2.7/dist-packages/circusweb/controller.py", line 128, in get_status
    res = client.send_message('status', name=name)
AttributeError: 'NoneType' object has no attribute 'send_message'

2014-09-04 13:36:38 tornado.access[64049] [INFO] 200 GET / (127.0.0.1) 59.11ms

[josegonzalez]

Same here, I guess I'm reverting to circus==0.9.2 and circus-web==0.4.1.

[amvapor]

I corrected this on our installation by removing the following lines:

circus-web/circusweb/templates/index.html

Lines 68 to 70 in fa00530

	%if display_status:
	<div style="width: 20px; float: right; margin-right: 10px;"><a class="${controller.get_status(watcher, endpoint)}" title="${controller.get_status(watcher, endpoint)}" href="${reverse_url('switch_status', b64encode(stat_endpoint), watcher)}"></a></div>
	%endif

I didn't dig into why or how, but it seems to make the web console work.

I also noticed that if I disabled my plugins, I didn't need to make this change, seems the plugins and the web console don't play well together for some reason. Plugins I was trying were statsd and flapper, either being enabled triggered the issue.

[lambdafu]

I can reproduce this with an installation straight from pypi (circus 0.11.1 and circusweb 0.5).