For scenarios, such as, Bug 3697586: Server crashes when assigning di…

…stributed transaction: Raise an ERROR instead of a crash
citusdata · Dec 26, 2024 · ab7c13b · ab7c13b
1 parent 7341191
commit ab7c13b
Showing 1 changed file with 10 additions and 0 deletions.
diff --git a/src/backend/distributed/transaction/backend_data.c b/src/backend/distributed/transaction/backend_data.c
@@ -855,6 +855,16 @@ GetCurrentDistributedTransactionId(void)
 void
 AssignDistributedTransactionId(void)
 {
+	/*
+	 * MyBackendData should always be available. However, we observed some
+	 * crashes where certain hooks were not executed.
+	 * Bug 3697586: Server crashes when assigning distributed transaction
+	 */
+	if (!MyBackendData)
+	{
+		ereport(ERROR, (errmsg("backend is not ready for distributed transactions")));
+	}
+
 	pg_atomic_uint64 *transactionNumberSequence =
 		&backendManagementShmemData->nextTransactionNumber;