XuanYang-cn opened a new issue #13852:
URL: https://github.com/apache/pulsar/issues/13852


   **Describe the bug**
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   **To Reproduce**
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   4. See error
   
   **Expected behavior**
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   **Additional context**
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   ```
    5169 18:57:44.834 [Thread-178] INFO  
org.apache.pulsar.broker.service.ServerCnx - [/10.244.0.61:52130] Created new 
producer: 
Producer{topic=PersistentTopic{topic=persistent://public/default/by-dev-rootcoord-dml_45},
 client=/10.244.0.61:52130, producerName=test-pulsar-pod      -kill-3-25, 
producerId=25}
    5170 18:57:48.642 [pulsar-load-manager-1-1] INFO  
org.apache.pulsar.broker.loadbalance.impl.ModularLoadManagerImpl - Writing 
local data to ZooKeeper because maximum change 33235.83459104782% exceeded 
threshold 10%; time since last report written is 15.0 seconds
    5171 18:57:48.649 [pulsar-ordered-OrderedExecutor-4-0-EventThread] INFO  
org.apache.pulsar.zookeeper.ZooKeeperDataCache - [State:CONNECTED Timeout:30000 
sessionid:0x100000a69f50002 local:/10.244.0.59:56396 
remoteserver:test-pulsar-pod-kill-zookeeper-ca/10.96.26.160:2181       
lastZxid:9946 xid:848 sent:848 recv:873 queuedpkts:0 pendingresp:1 
queuedevents:0] Received ZooKeeper watch event: WatchedEvent 
state:SyncConnected type:NodeDataChanged 
path:/loadbalance/brokers/10.244.0.59:8080
    5172 18:57:53.416 [pulsar-load-manager-1-1] INFO  
org.apache.pulsar.broker.loadbalance.impl.ModularLoadManagerImpl - Only 1 
broker available: no load shedding will be performed 
    5173 18:58:00.902 [pulsar-client-io-43-1] INFO  
org.apache.pulsar.client.impl.ConsumerStatsRecorderImpl - Starting Pulsar 
consumer status recorder with config: {                                         
                                                                     
    5174   "topicNames" : [ 
"persistent://pulsar/test-pulsar-pod-kill/10.244.0.59:8080/healthcheck" ],   
   ```
   
   Should I be worried about the L:5170?  It's really slow and reports a  
`maximum change 33235.83459104782% exceeded threshold 10%`
   
   What's the meaning of the log anyway?
   And this is the log 15s ago:
   ```
    5105 18:57:33.642 [pulsar-load-manager-1-1] INFO  
org.apache.pulsar.broker.loadbalance.impl.ModularLoadManagerImpl - Writing 
local data to ZooKeeper because maximum change 11.047309637069702% exceeded 
threshold 10%; time since last report written is 45.0 seconds
   ```
   
   Is it realistic to accelerate from 11% to 33235% in just 15s?


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