Update

app/corpora/events.py

@@ -125,7 +125,7 @@ def corpus_analysis_session_handler(app, corpus_id, user_id, session_id):
         while corpus.status != 'analysing':
             db.session.refresh(corpus)
             socketio.sleep(3)
-        client = cqi.CQiClient('corpus_{}_analysis'.format(corpus_id))
+        client = cqi.CQiClient('cqpserver_{}'.format(corpus_id))
         try:
             payload = client.connect()
         except cqi.errors.CQiException as e: