Querying Kafka Cluster Metadata
Function
This API is used to query Kafka cluster metadata.
Calling Method
For details, see Calling APIs.
URI
GET /v2/{project_id}/instances/{instance_id}/management/cluster
Parameter |
Mandatory |
Type |
Description |
---|---|---|---|
project_id |
Yes |
String |
Project ID. For details about how to obtain it, see Obtaining a Project ID. |
instance_id |
Yes |
String |
Instance ID. |
Request Parameters
None
Response Parameters
Status code: 200
Parameter |
Type |
Description |
---|---|---|
cluster |
cluster object |
Cluster basic information. |
Parameter |
Type |
Description |
---|---|---|
controller |
String |
Controller ID. |
brokers |
Array of brokers objects |
Broker list. |
topics_count |
Integer |
Number of topics. |
partitions_count |
Integer |
Number of partitions. |
online_partitions_count |
Integer |
Number of online partitions. |
replicas_count |
Integer |
Number of replicas. |
isr_replicas_count |
Integer |
Total number of in-sync replicas (ISRs). |
consumers_count |
Integer |
Number of consumer groups. |
Parameter |
Type |
Description |
---|---|---|
host |
String |
Broker IP address. |
port |
Integer |
Port number. |
broker_id |
String |
Broker ID. |
is_controller |
Boolean |
Whether the broker is a controller. |
version |
String |
Server version. |
register_time |
Long |
Broker registration time, which is a Unix timestamp. |
is_health |
Boolean |
Whether Kafka brokers can be connected. |
Example Requests
GET https://{endpoint}/v2/{project_id}/instances/{instance_id}/management/cluster
Example Responses
Status code: 200
Kafka cluster metadata is queried successfully.
{ "cluster" : { "controller" : "2", "brokers" : [ { "host" : "192.168.0.159", "port" : 9093, "broker_id" : "0", "is_controller" : false, "version" : "1.1.0", "register_time" : 1588754647872, "is_health" : true }, { "host" : "192.168.0.48", "port" : 9093, "broker_id" : "1", "is_controller" : false, "version" : "1.1.0", "register_time" : 1588754647653, "is_health" : true }, { "host" : "192.168.0.212", "port" : 9093, "broker_id" : "2", "is_controller" : true, "version" : "1.1.0", "register_time" : 1588754647284, "is_health" : true } ], "topics_count" : 3, "partitions_count" : 9, "online_partitions_count" : 9, "replicas_count" : 27, "isr_replicas_count" : 27, "consumers_count" : 0 } }
SDK Sample Code
The SDK sample code is as follows.
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package com.huaweicloud.sdk.test; import com.huaweicloud.sdk.core.auth.ICredential; import com.huaweicloud.sdk.core.auth.BasicCredentials; import com.huaweicloud.sdk.core.exception.ConnectionException; import com.huaweicloud.sdk.core.exception.RequestTimeoutException; import com.huaweicloud.sdk.core.exception.ServiceResponseException; import com.huaweicloud.sdk.kafka.v2.region.KafkaRegion; import com.huaweicloud.sdk.kafka.v2.*; import com.huaweicloud.sdk.kafka.v2.model.*; public class ShowClusterSolution { public static void main(String[] args) { // The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security. // In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment String ak = System.getenv("CLOUD_SDK_AK"); String sk = System.getenv("CLOUD_SDK_SK"); String projectId = "{project_id}"; ICredential auth = new BasicCredentials() .withProjectId(projectId) .withAk(ak) .withSk(sk); KafkaClient client = KafkaClient.newBuilder() .withCredential(auth) .withRegion(KafkaRegion.valueOf("<YOUR REGION>")) .build(); ShowClusterRequest request = new ShowClusterRequest(); request.withInstanceId("{instance_id}"); try { ShowClusterResponse response = client.showCluster(request); System.out.println(response.toString()); } catch (ConnectionException e) { e.printStackTrace(); } catch (RequestTimeoutException e) { e.printStackTrace(); } catch (ServiceResponseException e) { e.printStackTrace(); System.out.println(e.getHttpStatusCode()); System.out.println(e.getRequestId()); System.out.println(e.getErrorCode()); System.out.println(e.getErrorMsg()); } } } |
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# coding: utf-8 import os from huaweicloudsdkcore.auth.credentials import BasicCredentials from huaweicloudsdkkafka.v2.region.kafka_region import KafkaRegion from huaweicloudsdkcore.exceptions import exceptions from huaweicloudsdkkafka.v2 import * if __name__ == "__main__": # The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security. # In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment ak = os.environ["CLOUD_SDK_AK"] sk = os.environ["CLOUD_SDK_SK"] projectId = "{project_id}" credentials = BasicCredentials(ak, sk, projectId) client = KafkaClient.new_builder() \ .with_credentials(credentials) \ .with_region(KafkaRegion.value_of("<YOUR REGION>")) \ .build() try: request = ShowClusterRequest() request.instance_id = "{instance_id}" response = client.show_cluster(request) print(response) except exceptions.ClientRequestException as e: print(e.status_code) print(e.request_id) print(e.error_code) print(e.error_msg) |
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package main import ( "fmt" "github.com/huaweicloud/huaweicloud-sdk-go-v3/core/auth/basic" kafka "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/kafka/v2" "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/kafka/v2/model" region "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/kafka/v2/region" ) func main() { // The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security. // In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment ak := os.Getenv("CLOUD_SDK_AK") sk := os.Getenv("CLOUD_SDK_SK") projectId := "{project_id}" auth := basic.NewCredentialsBuilder(). WithAk(ak). WithSk(sk). WithProjectId(projectId). Build() client := kafka.NewKafkaClient( kafka.KafkaClientBuilder(). WithRegion(region.ValueOf("<YOUR REGION>")). WithCredential(auth). Build()) request := &model.ShowClusterRequest{} request.InstanceId = "{instance_id}" response, err := client.ShowCluster(request) if err == nil { fmt.Printf("%+v\n", response) } else { fmt.Println(err) } } |
For SDK sample code of more programming languages, see the Sample Code tab in API Explorer. SDK sample code can be automatically generated.
Status Codes
Status Code |
Description |
---|---|
200 |
Kafka cluster metadata is queried successfully. |
Error Codes
See Error Codes.
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