🚑 avoid metric bug

dubbo-metrics/dubbo-metrics-api/src/main/java/org/apache/dubbo/metrics/event/MetricsEventBus.java

@@ -17,15 +17,22 @@
 
 package org.apache.dubbo.metrics.event;
 
+import org.apache.dubbo.common.logger.ErrorTypeAwareLogger;
+import org.apache.dubbo.common.logger.LoggerFactory;
+
 import java.util.Optional;
 import java.util.function.Function;
 import java.util.function.Supplier;
 
+import static org.apache.dubbo.common.constants.LoggerCodeConstants.COMMON_METRICS_COLLECTOR_EXCEPTION;
+
 /**
  * Dispatches events to listeners, and provides ways for listeners to register themselves.
  */
 public class MetricsEventBus {
 
+    private static final ErrorTypeAwareLogger logger = LoggerFactory.getErrorTypeAwareLogger(MetricsEventBus.class);
+
     /**
      * Posts an event to all registered subscribers and only once.
      *
@@ -63,27 +70,46 @@ public static <T> T post(MetricsEvent event, Supplier<T> targetSupplier) {
      */
     public static <T> T post(MetricsEvent event, Supplier<T> targetSupplier, Function<T, Boolean> trFunction) {
         T result;
-        before(event);
+        tryInvoke(() -> {
+            before(event);
+        });
         if (trFunction == null) {
             try {
                 result = targetSupplier.get();
             } catch (Throwable e) {
-                error(event);
+                tryInvoke(() -> {
+                    error(event);
+                });
                 throw e;
             }
-            after(event, result);
+            tryInvoke(() -> {
+                after(event, result);
+            });
         } else {
             // Custom failure status
             result = targetSupplier.get();
             if (trFunction.apply(result)) {
-                after(event, result);
+                tryInvoke(() -> {
+                    after(event, result);
+                });
             } else {
-                error(event);
+                tryInvoke(() -> {
+                    error(event);
+                });
             }
         }
         return result;
     }
 
+    public static void tryInvoke(Runnable runnable) {
+        try {
+            runnable.run();
+        } catch (Throwable e) {
+            logger.warn(COMMON_METRICS_COLLECTOR_EXCEPTION, "" +
+                    "", "", "invoke metric event error" + e.getMessage());
+        }
+    }
+
     /**
      * Applicable to the scene where execution and return are separated,
      * eventSaveRunner saves the event, so that the calculation rt is introverted