Producer can‘t continue sending messages after all brokers are restarted

**Describe the bug**
Pulsar v2.8.1
Pulsar cluster: 3 brokers
Producer can‘t continue sending messages after all brokers are restarted.

**To Reproduce**
Steps to reproduce the behavior:
1. Create producer
```
public class PulsarProducerDemo3 {
// 连接集群 broker
private static String localClusterUrl = "pulsar://127.0.0.1:6650,127.0.0.1:6651,127.0.0.1:6652";

public static void main(String[] args) {
try {
Producer producer = getProducer();

Long start = System.currentTimeMillis();
int i = 0;
while (i < 50000) {
producer.send(i + "");
System.out.println("send msg:" + i + "");
i++;
}
} catch (Exception e) {
System.err.println("send fail:" + e);
}
}

public static Producer getProducer() throws Exception {
PulsarClient client;
Map prop = new HashMap<>();
prop.put("topicName", "persistent://public/default/test-string3");
client = PulsarClient.builder().serviceUrl(localClusterUrl).build();
Producer producer = client.newProducer(Schema.STRING)
.loadConf(prop)
.create();
return producer;
}
}
```
2. Run producer
3. After sending 100 messages, stop all brokers
4. See producer's log
```
[pulsar-timer-5-1] INFO org.apache.pulsar.client.impl.ConnectionHandler - [persistent://public/default/test-string3-partition-2] [pulsar-cluster-10-0] Reconnecting after connection was closed
[pulsar-client-io-1-1] WARN org.apache.pulsar.client.impl.ConnectionPool - Failed to open connection to 127.0.0.1:6650 : org.apache.pulsar.shade.io.netty.channel.AbstractChannel$AnnotatedConnectException: Connection refused: /127.0.0.1:6650
[pulsar-client-io-1-1] WARN org.apache.pulsar.client.impl.ConnectionHandler - [persistent://public/default/test-string3-partition-2] [pulsar-cluster-10-0] Error connecting to broker: org.apache.pulsar.client.api.PulsarClientException: java.util.concurrent.CompletionException: org.apache.pulsar.shade.io.netty.channel.AbstractChannel$AnnotatedConnectException: Connection refused: /127.0.0.1:6650
[pulsar-client-io-1-1] WARN org.apache.pulsar.client.impl.ConnectionHandler - [persistent://public/default/test-string3-partition-2] [pulsar-cluster-10-0] Could not get connection to broker: org.apache.pulsar.client.api.PulsarClientException: java.util.concurrent.CompletionException: org.apache.pulsar.shade.io.netty.channel.AbstractChannel$AnnotatedConnectException: Connection refused: /127.0.0.1:6650 -- Will try again in 1.496 s
[pulsar-timer-5-1] INFO org.apache.pulsar.client.impl.ConnectionHandler - [persistent://public/default/test-string3-partition-2] [pulsar-cluster-10-0] Reconnecting after connection was closed
[pulsar-client-io-1-1] WARN org.apache.pulsar.client.impl.ConnectionPool - Failed to open connection to 172.32.149.123:16650 : org.apache.pulsar.shade.io.netty.channel.AbstractChannel$AnnotatedConnectException: Connection refused: /172.32.149.123:16650
[pulsar-client-io-1-1] WARN org.apache.pulsar.client.impl.ConnectionHandler - [persistent://public/default/test-string3-partition-2] [pulsar-cluster-10-0] Error connecting to broker: org.apache.pulsar.client.api.PulsarClientException: java.util.concurrent.CompletionException: org.apache.pulsar.shade.io.netty.channel.AbstractChannel$AnnotatedConnectException: Connection refused: /127.0.0.1:6651
[pulsar-client-io-1-1] WARN org.apache.pulsar.client.impl.ConnectionHandler - [persistent://public/default/test-string3-partition-2] [pulsar-cluster-10-0] Could not get connection to broker: org.apache.pulsar.client.api.PulsarClientException: java.util.concurrent.CompletionException: org.apache.pulsar.shade.io.netty.channel.AbstractChannel$AnnotatedConnectException: Connection refused: /127.0.0.1:6651 -- Will try again in 3.193 s
[pulsar-timer-5-1] INFO org.apache.pulsar.client.impl.ConnectionHandler - [persistent://public/default/test-string3-partition-1] [pulsar-cluster-11-0] Reconnecting after connection was closed
[pulsar-client-io-1-1] WARN org.apache.pulsar.client.impl.ConnectionPool - Failed to open connection to 127.0.0.1:6652 : org.apache.pulsar.shade.io.netty.channel.AbstractChannel$AnnotatedConnectException: Connection refused: /127.0.0.1:6652
[pulsar-client-io-1-1] WARN org.apache.pulsar.client.impl.ConnectionHandler - [persistent://public/default/test-string3-partition-1] [pulsar-cluster-11-0] Error connecting to broker: org.apache.pulsar.client.api.PulsarClientException: java.util.concurrent.CompletionException: org.apache.pulsar.shade.io.netty.channel.AbstractChannel$AnnotatedConnectException: Connection refused: /127.0.0.1:6652
[pulsar-client-io-1-1] WARN org.apache.pulsar.client.impl.ConnectionHandler - [persistent://public/default/test-string3-partition-1] [pulsar-cluster-11-0] Could not get connection to broker: org.apache.pulsar.client.api.PulsarClientException: java.util.concurrent.CompletionException: org.apache.pulsar.shade.io.netty.channel.AbstractChannel$AnnotatedConnectException: Connection refused: /127.0.0.1:6652 -- Will try again in 2.97 s
```
5. Start all brokers
6. See producer's log
```
[pulsar-client-io-1-1] INFO org.apache.pulsar.client.impl.ConnectionPool - [[id: 0x7fa30072, L:/127.0.0.1:50232 - R:/127.0.0.1:6650]] Connected to server
[pulsar-client-io-1-1] INFO org.apache.pulsar.client.impl.ProducerImpl - [persistent://public/default/test-string3-partition-2] [pulsar-cluster-14-0] Creating producer on cnx [id: 0x7fa30072, L:/127.0.0.1:50232 - R:/127.0.0.1:16651]
[pulsar-timer-5-1] INFO org.apache.pulsar.client.impl.ConnectionHandler - [persistent://public/default/test-string3-partition-0] [pulsar-cluster-14-1] Reconnecting after connection was closed
[pulsar-client-io-1-1] INFO org.apache.pulsar.client.impl.ConnectionPool - [[id: 0xa49808e4, L:/127.0.0.1:58935 - R:/127.0.0.1:6651]] Connected to server
[pulsar-client-io-1-1] INFO org.apache.pulsar.client.impl.ProducerImpl - [persistent://public/default/test-string3-partition-0] [pulsar-cluster-14-1] Creating producer on cnx [id: 0xa49808e4, L:/127.0.0.1:58935 - R:/127.0.0.1:6652]
```
Creating producer success, but producer can‘t continue sending messages after all brokers are restarted.
7. Jstack producer's pid
```

Full thread dump Java HotSpot(TM) 64-Bit Server VM (25.251-b08 mixed mode):

"Attach Listener" #13 daemon prio=9 os_prio=0 tid=0x00007fc510001000 nid=0x4dc2 waiting on condition [0x00000000
00000000]
java.lang.Thread.State: RUNNABLE

"DestroyJavaVM" #12 prio=5 os_prio=0 tid=0x00007fc53c009800 nid=0x4c40 waiting on condition [0x0000000000000000]
java.lang.Thread.State: RUNNABLE

"pulsar-external-listener-3-1" #11 prio=5 os_prio=0 tid=0x00007fc4f40b3800 nid=0x4c95 waiting on condition [0x00
007fc5185f5000]
java.lang.Thread.State: WAITING (parking)
at sun.misc.Unsafe.park(Native Method)
- parking to wait for <0x000000078f4085b8> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$Con
ditionObject)
at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronize
r.java:2039)
at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.ja
va:1081)
at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.ja
va:809)
at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at org.apache.pulsar.shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.
java:30)
at java.lang.Thread.run(Thread.java:748)

"pulsar-timer-5-1" #10 prio=5 os_prio=0 tid=0x00007fc4f4065800 nid=0x4c4c waiting on condition [0x00007fc5192170
00]
java.lang.Thread.State: TIMED_WAITING (sleeping)
at java.lang.Thread.sleep(Native Method)
at org.apache.pulsar.shade.io.netty.util.HashedWheelTimer$Worker.waitForNextTick(HashedWheelTimer.java:5
66)
at org.apache.pulsar.shade.io.netty.util.HashedWheelTimer$Worker.run(HashedWheelTimer.java:462)
at org.apache.pulsar.shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.
java:30)
at java.lang.Thread.run(Thread.java:748)

"pulsar-client-io-1-1" #8 prio=5 os_prio=0 tid=0x00007fc53c40b800 nid=0x4c4b runnable [0x00007fc52c18a000]
java.lang.Thread.State: RUNNABLE
at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:93)
at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86)
- locked <0x000000078f300d50> (a org.apache.pulsar.shade.io.netty.channel.nio.SelectedSelectionKeySet)
- locked <0x000000078f300d68> (a java.util.Collections$UnmodifiableSet)
- locked <0x000000078f300d08> (a sun.nio.ch.EPollSelectorImpl)
at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97)
at org.apache.pulsar.shade.io.netty.channel.nio.SelectedSelectionKeySetSelector.select(SelectedSelection
KeySetSelector.java:62)
at org.apache.pulsar.shade.io.netty.channel.nio.NioEventLoop.select(NioEventLoop.java:814)
at org.apache.pulsar.shade.io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:457)
at org.apache.pulsar.shade.io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExe
cutor.java:986)
at org.apache.pulsar.shade.io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
at org.apache.pulsar.shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.
java:30)
at java.lang.Thread.run(Thread.java:748)

"Service Thread" #7 daemon prio=9 os_prio=0 tid=0x00007fc53c0d4000 nid=0x4c49 runnable [0x0000000000000000]
java.lang.Thread.State: RUNNABLE

"C1 CompilerThread1" #6 daemon prio=9 os_prio=0 tid=0x00007fc53c0b7800 nid=0x4c48 waiting on condition [0x000000
0000000000]
java.lang.Thread.State: RUNNABLE

"C2 CompilerThread0" #5 daemon prio=9 os_prio=0 tid=0x00007fc53c0b4800 nid=0x4c47 waiting on condition [0x000000
0000000000]
java.lang.Thread.State: RUNNABLE

```

**Expected behavior**
Producer can continue sending messages after all brokers are restarted #15559

Start by reproducing the failure with the Java producer example in the issue: send messages while stopping and restarting all three brokers, then inspect the ConnectionHandler logs and producer jstack. Trace the producer reconnection path; done means the producer resumes sending messages after all brokers restart.

Written by the indexing model from the issue text.