kafka的AdminClient有哪些api
时间: 2024-03-20 20:44:34 浏览: 51
Kafka的AdminClient提供了许多API,可以管理Kafka集群中的topics、brokers、ACLs等。以下是一些AdminClient API的示例:
1. 创建topic:
```
NewTopic newTopic = new NewTopic("my-topic", numPartitions, replicationFactor);
CreateTopicsResult createTopicsResult = adminClient.createTopics(Collections.singleton(newTopic));
createTopicsResult.values().get("my-topic").get();
```
2. 删除topic:
```
DeleteTopicsResult deleteTopicsResult = adminClient.deleteTopics(Collections.singleton("my-topic"));
deleteTopicsResult.values().get("my-topic").get();
```
3. 列出topic:
```
ListTopicsResult listTopicsResult = adminClient.listTopics();
Set<String> topicNames = listTopicsResult.names().get();
```
4. 修改topic配置:
```
ConfigResource resource = new ConfigResource(ConfigResource.Type.TOPIC, "my-topic");
ConfigEntry entry = new ConfigEntry("cleanup.policy", "compact");
Config config = new Config(Collections.singleton(entry));
Map<ConfigResource, Config> configs = Collections.singletonMap(resource, config);
adminClient.alterConfigs(configs).all().get();
```
5. 查询broker信息:
```
DescribeClusterResult describeClusterResult = adminClient.describeCluster();
Collection<Node> nodes = describeClusterResult.nodes().get();
```
等等。这些API可以通过AdminClient来调用,以进行各种Kafka管理任务。