Question

我们正在使用Avro运行开源Kafka Confluent 5.2.1，以对消息进行编码/解码。当我们构建一个新集群并向其发布模式时，我们的__consumer_offsets主题具有以下配置：

$shell> kafka-topics --zookeeper localhost:2181/apps/kafka_cluster --describe --topic __consumer_offsets
Topic:__consumer_offsets        PartitionCount:50       ReplicationFactor:1     Configs:compression.type=producer,cleanup.policy=compact,segment.bytes=104857600
        Topic: __consumer_offsets       Partition: 0    Leader: 101     Replicas: 101   Isr: 101
        Topic: __consumer_offsets       Partition: 1    Leader: 102     Replicas: 102   Isr: 102
        Topic: __consumer_offsets       Partition: 2    Leader: 101     Replicas: 101   Isr: 101
        Topic: __consumer_offsets       Partition: 3    Leader: 102     Replicas: 102   Isr: 102
...
        Topic: __consumer_offsets       Partition: 48   Leader: 101     Replicas: 101   Isr: 101
        Topic: __consumer_offsets       Partition: 49   Leader: 102     Replicas: 102   Isr: 102

然后我使用以下JSON文件重新分配分区：

{"version":1, "partitions":[
  {"topic":"__consumer_offsets","partition":0,"replicas":[101,102,103]},
  {"topic":"__consumer_offsets","partition":1,"replicas":[102,103,101]},
  {"topic":"__consumer_offsets","partition":2,"replicas":[103,101,102]},
...
  {"topic":"__consumer_offsets","partition":45,"replicas":[101,102,103]},
  {"topic":"__consumer_offsets","partition":46,"replicas":[102,103,101]},
  {"topic":"__consumer_offsets","partition":47,"replicas":[103,101,102]},
  {"topic":"__consumer_offsets","partition":48,"replicas":[101,102,103]},
  {"topic":"__consumer_offsets","partition":49,"replicas":[102,103,101]}
]}

最终结果是副本已更改，但是同步副本有时会更改，而有时却没有：

$shell> kafka-topics --zookeeper bigdevmq02c:2181/apps/kafka_cluster --describe --topic __consumer_offsets                Topic:__consumer_offsets        PartitionCount:50       ReplicationFactor:3     Configs:compression.type=producer,cleanup.policy=compact,segment.bytes=104857600
        Topic: __consumer_offsets       Partition: 0    Leader: 101     Replicas: 101,102,103   Isr: 101
        Topic: __consumer_offsets       Partition: 1    Leader: 102     Replicas: 102,103,101   Isr: 102,103,101
        Topic: __consumer_offsets       Partition: 2    Leader: 101     Replicas: 103,101,102   Isr: 101
        Topic: __consumer_offsets       Partition: 3    Leader: 102     Replicas: 101,102,103   Isr: 102,103,101
...
        Topic: __consumer_offsets       Partition: 48   Leader: 101     Replicas: 101,102,103   Isr: 101
        Topic: __consumer_offsets       Partition: 49   Leader: 102     Replicas: 102,103,101   Isr: 102,103,101

我希望同步副本与副本匹配，然后根据副本的第一个成员运行领导者选举，如下所示：

$shell> kafka-preferred-replica-election --bootstrap-server localhost:9092

，但是当前失败。我做错了什么以及如何纠正？

非常感谢您的帮助。

更新

我运行了一个验证，在2.5小时后的一个空群集上，它仍然显示为不完整：

$shell> kafka-reassign-partitions --zookeeper localhost:2181/apps/kafka_cluster --reassignment-json-file dev.json --verify
Status of partition reassignment:
Reassignment of partition __consumer_offsets-22 is still in progress
Reassignment of partition __consumer_offsets-30 is still in progress
Reassignment of partition __consumer_offsets-8 is still in progress
Reassignment of partition __consumer_offsets-21 completed successfully

Answer 1

环顾了一会后，我们注意到集群中有一个节点正在运行5.2.1版的Kafka，其余节点正在运行5.3.1版。将在该节点上运行的版本更改为5.3.1可以解决此问题。

更改Kafka同步副本

1 个答案: