Improve: add the node ip and port for cluster exception

fixes #3466

Author: yangbodong22011

src/main/java/redis/clients/jedis/DefaultJedisSocketFactory.java

@@ -60,7 +60,7 @@ private Socket connectToFirstSuccessfulHost(HostAndPort hostAndPort) throws Exce
       Collections.shuffle(hosts);
     }
 
-    JedisConnectionException jce = new JedisConnectionException("Failed to connect to any host resolved for DNS name.");
+    JedisConnectionException jce = new JedisConnectionException("Failed to connect to host " + hostAndPort);
     for (InetAddress host : hosts) {
       try {
         Socket socket = new Socket();

src/main/java/redis/clients/jedis/executors/ClusterCommandExecutor.java

@@ -96,7 +96,8 @@ public final <T> T executeCommand(CommandObject<T> commandObject) {
       } catch (JedisClusterOperationException jnrcne) {
         throw jnrcne;
       } catch (JedisConnectionException jce) {
-        lastException = jce;
+        lastException = new JedisConnectionException(
+            "Cluster retry failed to " + (connection != null ? connection.toString() : ""), jce);
         ++consecutiveConnectionFailures;
         log.debug("Failed connecting to Redis: {}", connection, jce);
         // "- 1" because we just did one, but the attemptsLeft counter hasn't been decremented yet
@@ -122,7 +123,9 @@ public final <T> T executeCommand(CommandObject<T> commandObject) {
         IOUtils.closeQuietly(connection);
       }
       if (Instant.now().isAfter(deadline)) {
-        throw new JedisClusterOperationException("Cluster retry deadline exceeded.");
+        throw new JedisClusterOperationException(
+            "Cluster retry to " + (connection != null ? connection.toString() : "")
+                + " deadline exceeded.");
       }
     }
 

src/main/java/redis/clients/jedis/executors/RetryableCommandExecutor.java

@@ -48,7 +48,8 @@ public final <T> T executeCommand(CommandObject<T> commandObject) {
         return execute(connection, commandObject);
 
       } catch (JedisConnectionException jce) {
-        lastException = jce;
+        lastException = new JedisConnectionException(
+            "Retry failed to " + (connection != null ? connection.toString() : ""), jce);
         ++consecutiveConnectionFailures;
         log.debug("Failed connecting to Redis: {}", connection, jce);
         // "- 1" because we just did one, but the attemptsLeft counter hasn't been decremented yet
@@ -62,7 +63,8 @@ public final <T> T executeCommand(CommandObject<T> commandObject) {
         }
       }
       if (Instant.now().isAfter(deadline)) {
-        throw new JedisException("Retry deadline exceeded.");
+        throw new JedisException("Retry to " + (connection != null ? connection.toString() : "")
+            + " deadline exceeded.");
       }
     }