Move session support check into server selection for unified topology

mongodb · Feb 17, 2021 · 60c0b22 · 60c0b22
1 parent 7909c78
commit 60c0b22
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/lib/operations/execute_operation.js b/lib/operations/execute_operation.js
@@ -142,6 +142,10 @@ function executeWithServerSelection(topology, operation, callback) {
       return;
     }
 
+    if (serverSelectionOptions.session && topology.hasSessionSupport()) {
+      return callback(new MongoError('Current topology does not support sessions'));
+    }
+
     const shouldRetryReads =
       topology.s.options.retryReads !== false &&
       operation.session &&