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[英]Aws Elastic Cache (Redis) failed to connect (jedis connection error) when acessed locally through spring boot java
[英]Deploying a Spring boot Application with Redis in Kubernetes--Jedis Connection Refused Error
部署到kubernetes時,由於jedis連接被拒絕錯誤,redis連接無法建立連接。
"message": "Cannot get Jedis connection; nested exception is
redis.clients.jedis.exceptions.JedisConnectionException:
java.net.ConnectException: Connection refused (Connection refused)",
部署yaml文件:
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
name: redis-master
spec:
selector:
matchLabels:
app: redis
replicas: 1
template:
metadata:
labels:
app: redis
spec:
containers:
- name: redis-master
image: gcr.io/google_containers/redis:e2e
ports:
- containerPort: 6379
volumeMounts:
- name: redis-storage
mountPath: /data/redis
volumes:
- name: redis-storage
---
apiVersion: v1
kind: Service
metadata:
name: redis-master
labels:
app: redis
spec:
ports:
- port: 6379
selector:
app: redis
---在項目中使用的Jedis示例代碼:
JedisConnectionFactory jedisConnectionFactoryUpdated() {
RedisStandaloneConfiguration redisStandaloneConfiguration = new RedisStandaloneConfiguration();
redisStandaloneConfiguration.setHostName("redis-master");
redisStandaloneConfiguration.setPort(6379);
JedisClientConfigurationBuilder jedisClientConfiguration = JedisClientConfiguration.builder();
jedisClientConfiguration.connectTimeout(Duration.ofSeconds(60));// 60s connection timeout
JedisConnectionFactory jedisConFactory = new JedisConnectionFactory(redisStandaloneConfiguration,
jedisClientConfiguration.build());
return jedisConFactory;
}
有人克服了這個問題嗎? TIA。
您需要先更新您的服務以反映:
apiVersion: v1
kind: Service
metadata:
name: redis-master
labels:
app: redis
spec:
ports:
- port: 6379
targetPort: 6379
selector:
app: redis
完成此操作后,您可以檢查您的Redis服務是否已啟動並使用nmap進行響應。 這是使用我的nmap圖像的示例:
kubectl run --image=appsoa/docker-alpine-nmap --rm -i -t nm -- -Pn 6379 redis-master
另外,請確保將Redis和Spring Boot應用程序都部署到相同的名稱空間。 如果不是,則需要使用明確定義主機名。 (即:“ redis-master.mynamespace”)。
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