reset fail state when last xa transaction fail to execute. (#1512)

Author: PanternBao

src/main/java/com/actiontech/dble/backend/mysql/nio/handler/MultiNodeHandler.java

@@ -26,7 +26,7 @@ public abstract class MultiNodeHandler implements ResponseHandler {
     private static final Logger LOGGER = LoggerFactory.getLogger(MultiNodeHandler.class);
     protected final ReentrantLock lock = new ReentrantLock();
     protected final NonBlockingSession session;
-    private AtomicBoolean isFailed = new AtomicBoolean(false);
+    protected AtomicBoolean isFailed = new AtomicBoolean(false);
     protected volatile String error;
     protected byte packetId;
     protected final AtomicBoolean errorResponse = new AtomicBoolean(false);

src/main/java/com/actiontech/dble/backend/mysql/nio/handler/transaction/AbstractCommitNodesHandler.java

@@ -67,6 +67,7 @@ public void reset() {
         firstResponsed = false;
         unResponseRrns.clear();
         packetId = 0;
+        isFailed.set(false);
     }
 
     public void debugCommitDelay() {