Fix node hostname switcharoo on Mac

worker/tasks.py

@@ -3,6 +3,7 @@ import shutil
 import tempfile
 import traceback
 import json
+import socket
 
 import time
 from threading import Event, Thread
@@ -35,6 +36,22 @@ def update_nodes_info():
     for processing_node in processing_nodes:
         processing_node.update_node_info()
 
+        # Workaround for mysterious "webodm_node-odm-1" or "webodm-node-odm-1" hostname switcharoo on Mac
+        # Technically we already check for the correct hostname during setup, 
+        # but sometimes that doesn't work?
+        check_hostname = 'webodm_node-odm-1'
+        if processing_node.hostname == check_hostname and not processing_node.is_online():
+            try:
+                socket.gethostbyname(processing_node.hostname)
+            except:
+                # Hostname was invalid, try renaming
+                processing_node.hostname = 'webodm-node-odm-1'
+                processing_node.update_node_info()
+                if processing_node.is_online():
+                    logger.info("Found and fixed webodm_node-odm-1 hostname switcharoo")
+                else:
+                    processing_node.hostname = check_hostname
+                processing_node.save()
 
 @app.task
 def cleanup_projects():