Is this library thread safe?

[André Cruz]

Hello.

I'm using sunburnt in a web application, and I'm reusing a sunburnt.SolrInterface object across different requests. This means that it will be used concurrently by many threads (in this case, Greenlets). Is this object safe to be used this way?

I'm asking this because I've recently caught an exception that seems to indicate otherwise.

 File "/servers/python-environments/discosite/local/lib/python2.7/site-packages/sunburnt/sunburnt.py", line 175, in add

   self.conn.update(str(update_message), **kwargs)

 File "/servers/python-environments/discosite/local/lib/python2.7/site-packages/sunburnt/sunburnt.py", line 63, in update

   headers=headers)

 File "/servers/python-environments/discosite/local/lib/python2.7/site-packages/sunburnt/sunburnt.py", line 33, in request

   return self.http_connection.request(*args, **kwargs)

 File "/servers/python-environments/discosite/local/lib/python2.7/site-packages/httplib2/__init__.py", line 1544, in request

   (response, content) = self._request(conn, authority, uri, request_uri, method, body, headers, redirections, cachekey)

 File "/servers/python-environments/discosite/local/lib/python2.7/site-packages/httplib2/__init__.py", line 1294, in _request

   (response, content) = self._conn_request(conn, request_uri, method, body, headers)

 File "/servers/python-environments/discosite/local/lib/python2.7/site-packages/httplib2/__init__.py", line 1231, in _conn_reques

   conn.request(method, request_uri, body, headers)

 File "/usr/lib/python2.7/httplib.py", line 962, in request

   self._send_request(method, url, body, headers)

 File "/usr/lib/python2.7/httplib.py", line 996, in _send_request

   self.endheaders(body)

 File "/usr/lib/python2.7/httplib.py", line 958, in endheaders

   self._send_output(message_body)

 File "/usr/lib/python2.7/httplib.py", line 818, in _send_output

   self.send(msg)

 File "/usr/lib/python2.7/httplib.py", line 794, in send

   self.sock.sendall(data)

 File "/servers/python-environments/discosite/local/lib/python2.7/site-packages/gevent/socket.py", line 478, in sendall

   data_sent += self.send(_get_memory(data, data_sent), flags)

 File "/servers/python-environments/discosite/local/lib/python2.7/site-packages/gevent/socket.py", line 456, in send

   self._wait(self._write_event)

 File "/servers/python-environments/discosite/local/lib/python2.7/site-packages/gevent/socket.py", line 290, in _wait

   assert watcher.callback is None, 'This socket is already used by another greenlet: %r' % (watcher.callback, )

AssertionError: This socket is already used by another greenlet: <bound method Waiter.switch of <gevent.hub.Waiter object at 0x4a41cd0>>

Is seems that multiple threads tried to use the same socket.

Does this mean that I can't share the sunburnt.SolrInterface object and have to create a new one per-request?

Thanks,

André Cruz