Catch subtensor issues

src/chain_data.py

@@ -42,11 +42,13 @@ def fetch_incentives():
     for i in range(len(metagraph.incentive)):
         INCENTIVES[i] = metagraph.incentive[i]
 
+
 def fetch_vtrust():
     VTRUST.clear()
     for i in range(len(metagraph.validator_trust)):
         VTRUST[i] = metagraph.validator_trust[i]
 
+
 def fetch_updated():
     UPDATED.clear()
     block = subtensor.get_current_block()
@@ -69,23 +71,26 @@ last_identity_sync: datetime = datetime.fromtimestamp(0, TIMEZONE)
 
 
 def sync_metagraph():
-    global last_sync
-    now = datetime.now(TIMEZONE)
-    if now - last_sync < timedelta(minutes=5):
-        return
-
-    print("Syncing metagraph...")
-    last_sync = now
-    metagraph.sync(subtensor=subtensor)
-
-    fetch_weights()
-    fetch_incentives()
-    fetch_vtrust()
-    fetch_updated()
-
-    global last_identity_sync
-    if now - last_identity_sync < timedelta(hours=12):
-        return
-
-    last_identity_sync = now
-    fetch_identities()
+    try:
+        global last_sync
+        now = datetime.now(TIMEZONE)
+        if now - last_sync < timedelta(minutes=5):
+            return
+
+        print("Syncing metagraph...")
+        last_sync = now
+        metagraph.sync(subtensor=subtensor)
+
+        fetch_weights()
+        fetch_incentives()
+        fetch_vtrust()
+        fetch_updated()
+
+        global last_identity_sync
+        if now - last_identity_sync < timedelta(hours=12):
+            return
+
+        last_identity_sync = now
+        fetch_identities()
+    except:
+        ...