Question

在过去的几个小时里，我的Kafka Streams工作尝试启动但是被Updated cluster metadata version占用了一个非常大的主题：

2018-01-03T13:30:56.871 DEBUG [org.apache.kafka.clients.consumer.KafkaConsumer] - Starting the Kafka consumer
2018-01-03T13:30:56.882 DEBUG [org.apache.kafka.clients.Metadata] - Updated cluster metadata version 1 to Cluster(id = null, nodes = [node2:9092 (id: -2 rack: null), 
  node3:9092 (id: -3 rack: null), node1:9092 (id: -1 rack: null)], partitions = [])
...
2018-01-04T10:10:27.945 DEBUG [org.apache.kafka.clients.NetworkClient] - Sending metadata request (type=MetadataRequest, topics=<ALL>) to node node3:9092 (id: 3 rack: null)
2018-01-04T10:10:27.952 DEBUG [org.apache.kafka.clients.Metadata] - Updated cluster metadata version 704157 to Cluster(id = DmwzpJYRTEGrm8MfjcpXLw, nodes = [node3:9092 (id: 3 rack: null), 
  node1:9092 (id: 1 rack: null), node2:9092 (id: 2 rack: null)], partitions = [Partition(topic = raw-messages, partition = 9, leader = 3, replicas = [3], isr = [3]), 
  Partition(topic = raw-messages, partition = 8, leader = none, replicas = [2], isr = []), 
  Partition(topic = raw-messages, partition = 7, leader = 1, replicas = [1], isr = [1]), 
  Partition(topic = raw-messages, partition = 6, leader = 3, replicas = [3], isr = [3]), 
  Partition(topic = raw-messages, partition = 5, leader = none, replicas = [2], isr = []), 
  Partition(topic = raw-messages, partition = 4, leader = 1, replicas = [1], isr = [1]), 
  Partition(topic = raw-messages, partition = 3, leader = 3, replicas = [3], isr = [3]), 
  Partition(topic = raw-messages, partition = 2, leader = none, replicas = [2], isr = []), 
  Partition(topic = raw-messages, partition = 1, leader = 1, replicas = [1], isr = [1]), 
  Partition(topic = raw-messages, partition = 0, leader = 3, replicas = [3], isr = [3])])

这是一个新的Kafka Streams作业，它有一个新的应用程序ID，它应该从一开始就开始（offset = 0）。

有几个事件可能导致此行为：

我们从Confluent Platform 3.2.0迁移到Confluent Platform 4.0.0
由于数据中心停电，Kafka集群严重崩溃

我的问题是，我应该让它运行吗？目前，作业位于metadata version 704157，我可以找出或估算版本总数吗？

Kafka Streams：“更新的群集元数据版本”运行了很长时间

0 个答案: