collectd curl_json problem

json.conf

Hostname    "canary"
FQDNLookup  false
Interval    5

LoadPlugin logfile

<Plugin logfile>
	LogLevel "debug"
	File "stdout"
	Timestamp true
	PrintSeverity true
</Plugin>

LoadPlugin csv
<Plugin csv>
  DataDir "stdout"
  StoreRates true
</Plugin>

LoadPlugin curl_json
LoadPlugin write_riemann

<Plugin curl_json>
    <URL "https://qrng.anu.edu.au/API/jsonI.php?length=5&type=uint8">
      #{
      #    "type": "uint8",
      #    "length": 5,
      #    "data": [ 20, 234, 108, 97, 13 ],
      #    "success": true
      #}
      Instance "random"
      <Key "length">
        Type "gauge"
      </Key>
      <Key "data/*">
        Type "gauge"
      </Key>
    </URL>
    <URL "http://www.cherokee-project.com/about/info/js">
    #{
    #  "version": "Cherokee web server 1.2",
    #  "traffic": {
    #      "tx": 247971700722,
    #      "rx": 3793223698, 
     Instance "cherokee"
     <Key "traffic/tx">
       Type "gauge"
     </Key>
    </URL>
</Plugin>

stdout.log

$ collectd -C json.conf -T                                                                                                                                                                                                                                                                     

option = ReadThreads; value = -1;
option = Hostname; value = canary;
option = FQDNLookup; value = false;
option = Interval; value = 5.000000;
Created new plugin context.
[2013-03-06 16:52:16] cf_dispatch: return (0)
[2013-03-06 16:52:16] type = logfile, key = Timestamp, value = true
[2013-03-06 16:52:16] cf_dispatch: return (0)
[2013-03-06 16:52:16] type = logfile, key = PrintSeverity, value = true
[2013-03-06 16:52:16] [debug] cf_dispatch: return (0)
[2013-03-06 16:52:16] [debug] type = csv, key = DataDir, value = stdout
[2013-03-06 16:52:16] [debug] cf_dispatch: return (0)
[2013-03-06 16:52:16] [debug] type = csv, key = StoreRates, value = true
[2013-03-06 16:52:16] [debug] cf_dispatch: return (0)
[2013-03-06 16:52:16] [debug] curl_json plugin: Registering new read callback: random
[2013-03-06 16:52:16] [debug] curl_json plugin: Registering new read callback: cherokee
[2013-03-06 16:52:16] [debug] Done parsing `/usr/local/share/collectd/types.db'
[2013-03-06 16:52:16] [debug] interval_g = 5.000;
[2013-03-06 16:52:16] [debug] timeout_g = 2;
[2013-03-06 16:52:16] [debug] hostname_g = canary;
[2013-03-06 16:52:18] [debug] Created new plugin context.
[2013-03-06 16:52:18] [debug] plugin_dispatch_values: time = 1362585138.613; interval = 5.000; host = canary; plugin = curl_json; plugin_instance = random; type = gauge; type_instance = length;
[2013-03-06 16:52:18] [debug] uc_insert: Added canary/curl_json-random/gauge-length to the cache.
[2013-03-06 16:52:18] [debug] plugin: plugin_write: Writing values via csv.
[2013-03-06 16:52:18] [debug] csv plugin: csv_write: filename = canary/curl_json-random/gauge-length;
[2013-03-06 16:52:18] [debug] curl_json plugin: cj_free (arg = 0x7fb318815e00);
PUTVAL canary/curl_json-random/gauge-length interval=5.000 1362585138.613:5.000000
[2013-03-06 16:52:18] [debug] Created new plugin context.
[2013-03-06 16:52:18] [debug] plugin_dispatch_values: time = 1362585138.693; interval = 5.000; host = canary; plugin = curl_json; plugin_instance = cherokee; type = gauge; type_instance = traffic-tx;
[2013-03-06 16:52:18] [error] curl_json plugin: yajl_parse failed: parse error: premature EOF
                                        786845,         "tx": 1634174
                     (right here) ------^

[2013-03-06 16:52:18] [debug] uc_insert: Added canary/curl_json-cherokee/gauge-traffic-tx to the cache.
[2013-03-06 16:52:18] [debug] plugin: plugin_write: Writing values via csv.
[2013-03-06 16:52:18] [debug] csv plugin: csv_write: filename = canary/curl_json-cherokee/gauge-traffic-tx;
PUTVAL canary/curl_json-cherokee/gauge-traffic-tx interval=5.000 1362585138.693:248008008202.000000
[2013-03-06 16:52:18] [error] curl_json plugin: curl_easy_perform failed with status 23: Failed writing body (0 != 1448) (http://www.cherokee-project.com/about/info/js)
[2013-03-06 16:52:18] [notice] read-function of plugin `curl_json-cherokee-http://www.cherokee-project.com/about/info/j' failed.
[2013-03-06 16:52:18] [debug] curl_json plugin: cj_free (arg = 0x7fb318823800);
[2013-03-06 16:52:18] [info] Exiting normally.
[2013-03-06 16:52:18] [info] collectd: Stopping 5 write threads.
[2013-03-06 16:52:18] [debug] plugin: stop_write_threads: Signalling `write_cond'