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Kafka Sarama Go Fetch Metadta Write Broken Pipe

exfly
   约 5405 字   预计阅读 11 分钟 

文章简介：一次 sarama 访问 kafka 报错 client/metadata got error from broker 1002 while fetching metadata: write tcp x.x.x.x:49749->x.x.x.x:9092: write: broken pipe 问题排查

问题现象

生产环境部署了 3 节点 kafka 集群，用 golang 使用 IBM/sarama 的 consumergroup 消费 kafka 数据，规律性的报错：

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2024-04-01T19:20:08.341+0800 ERROR [Input] [Kafka-Sarama] client/metadata got error from broker 1002 while fetching metadata: write tcp myclient:57096->myserver:9092: write: broken pipe
...
2024-04-01T21:29:07.462+0800 ERROR [Input] [Kafka-Sarama] client/metadata got error from broker 1002 while fetching metadata: EOF

sarama 的配置见：

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config := sarama.NewConfig()
 // Kafka broker 版本号
version, err := sarama.ParseKafkaVersion("2.0.0")
if err != nil {
  return err
 }

config.Version = version
config.Net.KeepAlive = time.Second * 5
config.ClientID = i.Name + "test-abc"
config.Metadata.RefreshFrequency = 1 * time.Minute
config.Metadata.Retry.Max = 9999999
config.Metadata.Retry.BackoffFunc = func(retries, maxRetries int) time.Duration {
  if retries >= maxRetries {
    return 0
  }
  log.Info("[Input] [Kafka] Metadata Has Anomalies, Please Handle It")
  return 20 * time.Second
}

config.Consumer.Offsets.Initial = -1
config.Consumer.Group.Heartbeat.Interval = time.Second * 3

详细日志见

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2024-04-01T19:05:11.132+0800 DEBUG [Input] [Kafka-Sarama] consumer/broker/1001 added subscription to test4/0
2024-04-01T19:06:08.015+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T19:07:07.995+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T19:08:07.857+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T19:09:07.548+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T19:10:07.793+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T19:11:07.849+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg42:9092
2024-04-01T19:12:09.010+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T19:13:08.559+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T19:14:07.847+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T19:15:07.692+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T19:16:08.470+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T19:17:08.396+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T19:18:08.160+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T19:19:07.845+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T19:20:08.341+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg41:9092
2024-04-01T19:20:08.341+0800 ERROR [Input] [Kafka-Sarama] client/metadata got error from broker 1002 while fetching metadata: write tcp myclient:57096->myserver:9092: write: broken pipe
2024-04-01T19:20:08.341+0800 DEBUG [Input] [Debug] [Kafka-Sarama] Closed connection to broker bg41:9092
2024-04-01T19:20:08.341+0800 DEBUG [Input] [Kafka-Sarama] client/brokers deregistered broker #1002 at bg41:9092
2024-04-01T19:20:09.476+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg42:9092
2024-04-01T19:20:09.506+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/brokers registered new broker #1002 at bg41:9092
2024-04-01T19:21:08.197+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T19:22:08.263+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T19:23:08.375+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T19:24:08.396+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg42:9092
2024-04-01T19:25:07.778+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T19:26:08.305+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T19:27:08.364+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg42:9092
2024-04-01T19:28:07.951+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg41:9092
2024-04-01T19:28:07.982+0800 DEBUG [Input] [Debug] [Kafka-Sarama] Connected to broker at bg41:9092 (registered as #1002)
2024-04-01T19:29:08.243+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T19:30:07.863+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T19:31:08.183+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg42:9092
2024-04-01T19:32:08.338+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T19:33:08.539+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T19:34:07.895+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg42:9092
2024-04-01T19:35:08.086+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T19:36:07.886+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T19:37:07.624+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T19:38:07.890+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T19:39:08.231+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T19:40:08.322+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T19:41:07.793+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T19:42:08.141+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg41:9092
2024-04-01T19:42:08.143+0800 ERROR [Input] [Kafka-Sarama] client/metadata got error from broker 1002 while fetching metadata: write tcp myclient:58018->myserver:9092: write: broken pipe
2024-04-01T19:42:08.143+0800 DEBUG [Input] [Debug] [Kafka-Sarama] Closed connection to broker bg41:9092
2024-04-01T19:42:08.143+0800 DEBUG [Input] [Kafka-Sarama] client/brokers deregistered broker #1002 at bg41:9092
2024-04-01T19:42:08.758+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg42:9092
2024-04-01T19:42:08.780+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/brokers registered new broker #1002 at bg41:9092
2024-04-01T19:43:08.086+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T19:44:07.896+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg42:9092
2024-04-01T19:45:08.248+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T19:46:08.232+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T19:47:08.476+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T19:48:07.919+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T19:49:08.128+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg41:9092
2024-04-01T19:49:08.153+0800 DEBUG [Input] [Debug] [Kafka-Sarama] Connected to broker at bg41:9092 (registered as #1002)
2024-04-01T19:50:08.325+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T19:51:07.816+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T19:52:09.125+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T19:53:08.397+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T19:54:07.807+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T19:55:08.407+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T19:56:07.851+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T19:57:07.815+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T19:58:08.498+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T19:59:07.798+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T20:00:08.379+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T20:01:07.887+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T20:02:07.937+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg42:9092
2024-04-01T20:03:07.975+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T20:04:08.022+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T20:05:07.596+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg42:9092
2024-04-01T20:06:07.609+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T20:07:08.214+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg42:9092
2024-04-01T20:08:07.775+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T20:09:07.784+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T20:09:27.375+0800 DEBUG [Input] [Kafka-Sarama] consumer/broker/1001 abandoned subscription to test4/0 because consuming was taking too long
2024-04-01T20:09:46.097+0800 DEBUG [Input] [Kafka-Sarama] consumer/broker/1001 accumulated 1 new subscriptions
2024-04-01T20:09:46.097+0800 DEBUG [Input] [Kafka-Sarama] consumer/broker/1001 added subscription to test4/0
2024-04-01T20:09:46.100+0800 DEBUG [Input] [Kafka-Sarama] consumer/broker/1001 abandoned subscription to test4/0 because consuming was taking too long
2024-04-01T20:10:07.410+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T20:10:16.126+0800 DEBUG [Input] [Kafka-Sarama] consumer/broker/1001 accumulated 1 new subscriptions
2024-04-01T20:10:16.126+0800 DEBUG [Input] [Kafka-Sarama] consumer/broker/1001 added subscription to test4/0
2024-04-01T20:10:16.133+0800 DEBUG [Input] [Kafka-Sarama] consumer/broker/1001 abandoned subscription to test4/0 because consuming was taking too long
2024-04-01T20:11:07.426+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T20:11:46.147+0800 DEBUG [Input] [Kafka-Sarama] consumer/broker/1001 accumulated 1 new subscriptions
2024-04-01T20:11:46.147+0800 DEBUG [Input] [Kafka-Sarama] consumer/broker/1001 added subscription to test4/0
2024-04-01T20:11:46.152+0800 DEBUG [Input] [Kafka-Sarama] consumer/broker/1001 abandoned subscription to test4/0 because consuming was taking too long
2024-04-01T20:12:07.424+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T20:13:07.425+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T20:13:46.164+0800 DEBUG [Input] [Kafka-Sarama] consumer/broker/1001 accumulated 1 new subscriptions
2024-04-01T20:13:46.164+0800 DEBUG [Input] [Kafka-Sarama] consumer/broker/1001 added subscription to test4/0
2024-04-01T20:14:07.843+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T20:15:08.167+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T20:15:09.352+0800 DEBUG [Input] [Kafka-Sarama] consumer/broker/1001 abandoned subscription to test4/0 because consuming was taking too long
2024-04-01T20:15:09.453+0800 DEBUG [Input] [Kafka-Sarama] consumer/broker/1001 accumulated 1 new subscriptions
2024-04-01T20:15:09.453+0800 DEBUG [Input] [Kafka-Sarama] consumer/broker/1001 added subscription to test4/0
2024-04-01T20:15:19.351+0800 DEBUG [Input] [Kafka-Sarama] consumer/broker/1001 abandoned subscription to test4/0 because consuming was taking too long
2024-04-01T20:15:19.453+0800 DEBUG [Input] [Kafka-Sarama] consumer/broker/1001 accumulated 1 new subscriptions
2024-04-01T20:15:19.453+0800 DEBUG [Input] [Kafka-Sarama] consumer/broker/1001 added subscription to test4/0
2024-04-01T20:15:29.352+0800 DEBUG [Input] [Kafka-Sarama] consumer/broker/1001 abandoned subscription to test4/0 because consuming was taking too long
2024-04-01T20:15:29.453+0800 DEBUG [Input] [Kafka-Sarama] consumer/broker/1001 accumulated 1 new subscriptions
2024-04-01T20:15:29.453+0800 DEBUG [Input] [Kafka-Sarama] consumer/broker/1001 added subscription to test4/0
2024-04-01T20:15:39.368+0800 DEBUG [Input] [Kafka-Sarama] consumer/broker/1001 abandoned subscription to test4/0 because consuming was taking too long
2024-04-01T20:15:46.175+0800 DEBUG [Input] [Kafka-Sarama] consumer/broker/1001 accumulated 1 new subscriptions
2024-04-01T20:15:46.175+0800 DEBUG [Input] [Kafka-Sarama] consumer/broker/1001 added subscription to test4/0
2024-04-01T20:15:49.845+0800 DEBUG [Input] [Kafka-Sarama] consumer/broker/1001 abandoned subscription to test4/0 because consuming was taking too long
2024-04-01T20:16:07.424+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T20:16:16.179+0800 DEBUG [Input] [Kafka-Sarama] consumer/broker/1001 accumulated 1 new subscriptions
2024-04-01T20:16:16.180+0800 DEBUG [Input] [Kafka-Sarama] consumer/broker/1001 added subscription to test4/0
2024-04-01T20:16:16.205+0800 DEBUG [Input] [Kafka-Sarama] consumer/broker/1001 abandoned subscription to test4/0 because consuming was taking too long
2024-04-01T20:16:46.182+0800 DEBUG [Input] [Kafka-Sarama] consumer/broker/1001 accumulated 1 new subscriptions
2024-04-01T20:16:46.182+0800 DEBUG [Input] [Kafka-Sarama] consumer/broker/1001 added subscription to test4/0
2024-04-01T20:16:46.188+0800 DEBUG [Input] [Kafka-Sarama] consumer/broker/1001 abandoned subscription to test4/0 because consuming was taking too long
2024-04-01T20:17:07.425+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T20:18:07.423+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T20:19:07.426+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T20:19:16.196+0800 DEBUG [Input] [Kafka-Sarama] consumer/broker/1001 accumulated 1 new subscriptions
2024-04-01T20:19:16.197+0800 DEBUG [Input] [Kafka-Sarama] consumer/broker/1001 added subscription to test4/0
2024-04-01T20:19:16.207+0800 DEBUG [Input] [Kafka-Sarama] consumer/broker/1001 abandoned subscription to test4/0 because consuming was taking too long
2024-04-01T20:20:07.424+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T20:21:07.424+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T20:22:07.424+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T20:23:07.424+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T20:24:07.423+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T20:25:07.446+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg41:9092
2024-04-01T20:25:07.448+0800 ERROR [Input] [Kafka-Sarama] client/metadata got error from broker 1002 while fetching metadata: write tcp myclient:58795->myserver:9092: write: broken pipe
2024-04-01T20:25:07.449+0800 DEBUG [Input] [Debug] [Kafka-Sarama] Closed connection to broker bg41:9092
2024-04-01T20:25:07.449+0800 DEBUG [Input] [Kafka-Sarama] client/brokers deregistered broker #1002 at bg41:9092
2024-04-01T20:25:07.449+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T20:25:07.491+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/brokers registered new broker #1002 at bg41:9092
2024-04-01T20:26:07.476+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg41:9092
2024-04-01T20:26:07.525+0800 DEBUG [Input] [Debug] [Kafka-Sarama] Connected to broker at bg41:9092 (registered as #1002)
2024-04-01T20:26:46.283+0800 DEBUG [Input] [Kafka-Sarama] consumer/broker/1001 accumulated 1 new subscriptions
2024-04-01T20:26:46.283+0800 DEBUG [Input] [Kafka-Sarama] consumer/broker/1001 added subscription to test4/0
2024-04-01T20:26:46.326+0800 DEBUG [Input] [Kafka-Sarama] consumer/broker/1001 abandoned subscription to test4/0 because consuming was taking too long
2024-04-01T20:27:07.472+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T20:28:07.471+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg41:9092
2024-04-01T20:29:07.473+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T20:30:07.494+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T20:31:07.473+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T20:32:07.475+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T20:33:07.475+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T20:34:07.475+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T20:35:07.475+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T20:36:07.476+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T20:37:07.476+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T20:38:07.477+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T20:39:07.477+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T20:40:07.476+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg41:9092
2024-04-01T20:40:07.477+0800 ERROR [Input] [Kafka-Sarama] client/metadata got error from broker 1002 while fetching metadata: write tcp myclient:60223->myserver:9092: write: broken pipe
2024-04-01T20:40:07.477+0800 DEBUG [Input] [Debug] [Kafka-Sarama] Closed connection to broker bg41:9092
2024-04-01T20:40:07.477+0800 DEBUG [Input] [Kafka-Sarama] client/brokers deregistered broker #1002 at bg41:9092
2024-04-01T20:40:07.477+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T20:40:07.500+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/brokers registered new broker #1002 at bg41:9092
2024-04-01T20:41:07.474+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg42:9092
2024-04-01T20:42:07.472+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T20:43:07.472+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T20:44:07.473+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T20:45:07.473+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg42:9092
2024-04-01T20:46:07.473+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T20:47:07.475+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T20:48:07.476+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T20:49:07.476+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T20:49:16.417+0800 DEBUG [Input] [Kafka-Sarama] consumer/broker/1001 accumulated 1 new subscriptions
2024-04-01T20:49:16.417+0800 DEBUG [Input] [Kafka-Sarama] consumer/broker/1001 added subscription to test4/0
2024-04-01T20:49:16.479+0800 DEBUG [Input] [Kafka-Sarama] consumer/broker/1001 abandoned subscription to test4/0 because consuming was taking too long
2024-04-01T20:50:07.476+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T20:51:07.479+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T20:52:07.477+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg42:9092
2024-04-01T20:53:07.475+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg42:9092
2024-04-01T20:54:07.478+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T20:55:07.469+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T20:56:07.446+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T20:57:07.446+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T20:58:07.444+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg42:9092
2024-04-01T20:59:07.446+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T21:00:07.444+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T21:01:07.444+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T21:02:07.445+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T21:03:07.446+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T21:04:07.445+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T21:05:07.445+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T21:06:07.445+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T21:07:07.445+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg41:9092
2024-04-01T21:07:07.469+0800 DEBUG [Input] [Debug] [Kafka-Sarama] Connected to broker at bg41:9092 (registered as #1002)
2024-04-01T21:08:07.445+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg41:9092
2024-04-01T21:09:07.445+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T21:10:07.446+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg41:9092
2024-04-01T21:11:07.445+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T21:12:07.446+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T21:13:07.446+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T21:14:07.445+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T21:15:07.445+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg42:9092
2024-04-01T21:16:07.445+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T21:17:07.445+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T21:18:07.445+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg41:9092
2024-04-01T21:19:07.445+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T21:20:07.444+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg42:9092
2024-04-01T21:21:07.445+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T21:22:07.445+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T21:23:07.443+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T21:24:07.445+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T21:25:07.444+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg42:9092
2024-04-01T21:26:07.459+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg42:9092
2024-04-01T21:27:07.459+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T21:28:07.460+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T21:29:07.461+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg41:9092
2024-04-01T21:29:07.462+0800 ERROR [Input] [Kafka-Sarama] client/metadata got error from broker 1002 while fetching metadata: EOF
2024-04-01T21:29:07.462+0800 DEBUG [Input] [Debug] [Kafka-Sarama] Closed connection to broker bg41:9092
2024-04-01T21:29:07.463+0800 DEBUG [Input] [Kafka-Sarama] client/brokers deregistered broker #1002 at bg41:9092
2024-04-01T21:29:07.463+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg42:9092
2024-04-01T21:29:07.478+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/brokers registered new broker #1002 at bg41:9092
2024-04-01T21:30:07.461+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg41:9092
2024-04-01T21:30:07.485+0800 DEBUG [Input] [Debug] [Kafka-Sarama] Connected to broker at bg41:9092 (registered as #1002)
2024-04-01T21:31:07.460+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T21:32:07.461+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T21:33:07.461+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T21:34:07.462+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T21:35:07.460+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T21:36:07.461+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T21:37:07.462+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T21:38:07.462+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T21:39:07.462+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg41:9092
2024-04-01T21:40:07.462+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T21:41:07.439+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg42:9092
2024-04-01T21:42:07.438+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg41:9092
2024-04-01T21:43:07.438+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T21:44:07.437+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T21:45:07.437+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg42:9092
2024-04-01T21:46:07.437+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg41:9092
2024-04-01T21:47:07.438+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T21:48:07.438+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T21:49:07.438+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T21:50:07.437+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T21:51:07.438+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T21:52:07.437+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T21:53:07.436+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T21:54:07.437+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T21:55:07.437+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T21:56:07.442+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T21:56:46.749+0800 DEBUG [Input] [Kafka-Sarama] consumer/broker/1001 accumulated 1 new subscriptions
2024-04-01T21:56:46.750+0800 DEBUG [Input] [Kafka-Sarama] consumer/broker/1001 added subscription to test4/0
2024-04-01T21:56:46.799+0800 DEBUG [Input] [Kafka-Sarama] consumer/broker/1001 abandoned subscription to test4/0 because consuming was taking too long
2024-04-01T21:57:07.442+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg42:9092
2024-04-01T21:58:07.442+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T21:59:07.445+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T22:00:07.443+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T22:01:07.442+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg42:9092
2024-04-01T22:02:07.442+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T22:03:07.442+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T22:04:07.444+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg41:9092
2024-04-01T22:04:07.444+0800 ERROR [Input] [Kafka-Sarama] client/metadata got error from broker 1002 while fetching metadata: write tcp myclient:62648->myserver:9092: write: broken pipe
2024-04-01T22:04:07.444+0800 DEBUG [Input] [Debug] [Kafka-Sarama] Closed connection to broker bg41:9092
2024-04-01T22:04:07.445+0800 DEBUG [Input] [Kafka-Sarama] client/brokers deregistered broker #1002 at bg41:9092
2024-04-01T22:04:07.445+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T22:04:07.454+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/brokers registered new broker #1002 at bg41:9092
2024-04-01T22:05:07.441+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T22:06:07.442+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg41:9092
2024-04-01T22:06:07.474+0800 DEBUG [Input] [Debug] [Kafka-Sarama] Connected to broker at bg41:9092 (registered as #1002)
2024-04-01T22:07:07.440+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg42:9092
2024-04-01T22:08:07.440+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T22:09:07.442+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T22:10:07.442+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T22:11:07.464+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T22:12:07.466+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg41:9092
2024-04-01T22:13:07.467+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T22:14:07.466+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg41:9092
2024-04-01T22:15:07.467+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg42:9092
2024-04-01T22:16:07.466+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T22:17:07.468+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T22:18:07.468+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T22:19:07.467+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T22:20:07.468+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T22:21:07.468+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T22:22:07.468+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T22:23:07.472+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg41:9092
2024-04-01T22:24:07.469+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T22:25:07.469+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T22:26:07.493+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T22:27:07.496+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T22:28:07.495+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T22:29:07.497+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg42:9092
2024-04-01T22:30:07.497+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg41:9092
2024-04-01T22:31:07.497+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg41:9092
2024-04-01T22:32:07.499+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg42:9092
2024-04-01T22:33:07.498+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T22:34:07.500+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T22:35:07.499+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T22:36:07.500+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg41:9092
2024-04-01T22:37:07.500+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T22:38:07.500+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T22:39:07.502+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T22:40:07.502+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg42:9092
2024-04-01T22:41:07.471+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T22:42:07.468+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T22:43:07.469+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T22:44:07.469+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T22:45:07.468+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg42:9092
2024-04-01T22:46:07.468+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T22:47:07.469+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T22:48:07.469+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T22:49:07.469+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg42:9092
2024-04-01T22:50:07.470+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T22:51:07.470+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T22:52:07.468+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T22:53:07.469+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T22:54:07.469+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg41:9092
2024-04-01T22:54:07.471+0800 ERROR [Input] [Kafka-Sarama] client/metadata got error from broker 1002 while fetching metadata: write tcp myclient:63971->myserver:9092: write: broken pipe
2024-04-01T22:54:07.471+0800 DEBUG [Input] [Debug] [Kafka-Sarama] Closed connection to broker bg41:9092
2024-04-01T22:54:07.472+0800 DEBUG [Input] [Kafka-Sarama] client/brokers deregistered broker #1002 at bg41:9092
2024-04-01T22:54:07.472+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T22:54:07.486+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/brokers registered new broker #1002 at bg41:9092
2024-04-01T22:55:07.470+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg43:9092
2024-04-01T22:56:07.505+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg41:9092
2024-04-01T22:56:07.552+0800 DEBUG [Input] [Debug] [Kafka-Sarama] Connected to broker at bg41:9092 (registered as #1002)

解决办法

sarama 的 keepalive 及 heatbeat 机制问题，并非对所有节点都有可靠的 heatbeat，请求闲置时间超过阈值连接被 kafka server 主动 close，sarama 使用了这个坏的连接导致 write: broken pipe 或 EOF

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+       // manual heatbeat
+       go func() {
+               for range time.NewTicker(time.Minute).C {
+                       fmt.Printf("manual heatbeat\n")
+                       for _, one := range client.Brokers() {
+                               _, err := one.Heartbeat(&sarama.HeartbeatRequest{})
+                               if err != nil {
+                                       fmt.Printf("%v %v\n", one.Addr(), err)
+                               }
+                       }
+               }
+       }()
+

TL;DR

why kafka close conn?

看到 write: broken pipe 首先从底层分析，可能来源为服务端主动 close。kafka 主动 close 可能来源为两处

  1. tcp keepalive
  2. 应用层超过了 connections.max.idle.ms

TCP keepalive

先看第一种情况，TCP keepalive

/kafka-sarama-go-fetch-metadta-write-broken-pipe/images/tcp-keepalive.png

图中高亮的一个包是第一次开始 TCP keepalive 的地方，每个 tcp keepalive 间隔 5s 左右，恰好与代码中的配置 config.Net.KeepAlive = time.Second * 5 匹配。说明 tcp keepalive 参数已经按照预期工作了。

kafka connections.max.idle.ms

查看配置，发现默认的 connections.max.idle.ms 10 分钟，session.timeout.ms 为 45s，而每次到 client/metadata fetching metadata for all topics from broker bg41:9092 到 write: broken pipe 的最小间隔时间都超过了 10min，日志中一个例子如下，间隔为 18min：

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2024-04-01T21:46:07.437+0800 DEBUG [Input] [Debug] [Kafka-Sarama] client/metadata fetching metadata for all topics from broker bg41:9092
2024-04-01T22:04:07.444+0800 ERROR [Input] [Kafka-Sarama] client/metadata got error from broker 1002 while fetching metadata: write tcp myclient:62648->myserver:9092: write: broken pipe

在 tcpdump 中看到一次 fetch medadate 到 write broken pipe 经历了 (2447-1756)/60 = 11.51min。

既然是超过了最大空闲时间，想到使用跟 kafka 交互最轻量的操作 heartbeat 试试看是否可以修复。按照上文的 解决办法 修复后，便不再出现 write: broken pipe 错误，至此，可以完全确认是 sarama 触发了 kafka 的最大空闲时间 (connections.max.idle.ms) 导致的。

为什么会这样呢？

sarama 的 heatbeat 是怎么工作的

TODO: 详细的分析一下 kafka 机制及 sasrama 的工作过程，分析一下出现此问题出现过程 TODO: 翻代码，查看 sarama 的 heatbeat 的实现找原因

是否可以修复一下

TODO: 尝试看是否提 pr 修复掉这个问题

更新于 2024-04-17  996a4a7
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