geomap does not render rooms

[jmbredal]

The request for geomap data fails with a 500 Internal Server Error

Request url:
/geomap/normal/data?format=geojson&limit=30&viewportWidth=1793&viewportHeight=815&create_edges=true&fetch_data=true&timeStart=08%3A20_20170823&timeEnd=08%3A30_20170823&bbox=10.381318201129,63.411492011161,10.419791807233,63.419318218723

Exception value:

<lazy_dict {'color': '#666666', 'popup': {'content': u'<div class="place-popup">\n\n  <table class="listtable">\n    <tr>\n      <th>Rooms</th>\n      <th>IP devices</th>\n      <th>CPU load (max)</th>\n    </tr>\n    <tr>\n      <td>1</td>\n      <td>4</td>\n      <td>unknown</td>\n    </tr>\n  </table>\n\n  \n    <table class="listtable">\n      <caption>\n        <a href="/search/room/blaasalen/"\n           target="_blank"\n           title="View room information">\n          blaasalen\n          (Bl\xe5salen maskinrom, NTNU)\n        </a>\n      </caption>\n\n      <tr>\n        <td><b>IP Devices:</b> 4</td>\n        <td><b>CPU load (max):</b> unknown</td>\n      </tr>\n\n      <tr>\n        <td colspan="2">\n          <ul class="large-block-grid-2">\n            \n              <li>\n                <h5>\n                  <a href="/ipdevinfo/blaasal-sw1.uninett.no/"\n                     target="_blank"\n                     title="View in IP Device Info">blaasal-sw1.uninett.no</a>\n                </h5>\n                <ul class="no-bullet">\n                  <li><b>IP:</b> 128.39.0.88</li>\n                  <li><b>Category:</b> SW</li>\n                  <li><b>Type:</b> Juniper Networks, Inc. ex4550-32f internet router, kernel JUNOS 12.2R5.3, Build date: 2013-06-28 06:55:45 UTC Copyright (c) 1996-2013 Juniper Networks, Inc.</li>\n                  <li><b>Up:</b> y</li>\n                  <li><b>Load:</b> unknown</li>\n                </ul>\n              </li>\n            \n              <li>\n                <h5>\n                  <a href="/ipdevinfo/sw-ex4550-5.bs.unsi.no/"\n                     target="_blank"\n                     title="View in IP Device Info">sw-ex4550-5.bs.unsi.no</a>\n                </h5>\n                <ul class="no-bullet">\n                  <li><b>IP:</b> 158.38.9.5</li>\n                  <li><b>Category:</b> SW</li>\n                  <li><b>Type:</b> Juniper Networks, Inc. ex4550-32f internet router, kernel JUNOS 12.2R5.3, Build date: 2013-06-28 06:55:45 UTC Copyright (c) 1996-2013 Juniper Networks, Inc.</li>\n                  <li><b>Up:</b> y</li>\n                  <li><b>Load:</b> unknown</li>\n                </ul>\n              </li>\n            \n              <li>\n                <h5>\n                  <a href="/ipdevinfo/uninett-gsw2.uninett.no/"\n                     target="_blank"\n                     title="View in IP Device Info">uninett-gsw2.uninett.no</a>\n                </h5>\n                <ul class="no-bullet">\n                  <li><b>IP:</b> 128.39.103.25</li>\n                  <li><b>Category:</b> GSW</li>\n                  <li><b>Type:</b> Cisco6524GT-8S</li>\n                  <li><b>Up:</b> y</li>\n                  <li><b>Load:</b> unknown</li>\n                </ul>\n              </li>\n            \n              <li>\n                <h5>\n                  <a href="/ipdevinfo/blaasal-sw.uninett.no/"\n                     target="_blank"\n                     title="View in IP Device Info">blaasal-sw.uninett.no</a>\n                </h5>\n                <ul class="no-bullet">\n                  <li><b>IP:</b> 158.38.179.68</li>\n                  <li><b>Category:</b> SW</li>\n                  <li><b>Type:</b> Cisco Catalyst 4506e L3 Switch</li>\n                  <li><b>Up:</b> y</li>\n                  <li><b>Load:</b> unknown</li>\n                </ul>\n              </li>\n            \n          </ul>\n        </td>\n      </tr>\n\n    </table>\n  \n\n</div>\n', 'closable': True, 'id': 'popup-cn[cn[156;157;68;69]]', 'size': [300, 250]}, 'type': 'node', 'size': 6}> is not JSON serializable
--

[lunkwill42]

More importantly, @jmbredal, can we introduce a new integration test to detect these kinds of failures in geomap? I suspect this was introduced at some point due to throwing away a custom JSON serializer in favor of Python's built-in one.