无法从池中获取资源（SocketTimeoutException：）

java redis socketexception jedis

2022-09-01 04:38:05

我正在运行多个工作线程（大约10个）来访问来自redis Q的数据。

Jedis jedis = pool.getResource();
jedis.getClient().setTimeoutInfinite();

我仍然收到错误“无法从池中获取资源”。下面给出了堆栈跟踪。

redis.clients.jedis.exceptions.JedisConnectionException: Could not get a resource from the pool
at redis.clients.util.Pool.getResource(Pool.java:22)
at Workers.Worker1.met1(Worker1.java:124)
at Workers.Worker1.work(Worker1.java:108)
at org.gearman.impl.worker.WorkerConnectionController$3.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)  

Caused by: redis.clients.jedis.exceptions.JedisConnectionException: java.net.SocketTimeoutException: connect timed out
at redis.clients.jedis.Connection.connect(Connection.java:124)
at redis.clients.jedis.BinaryClient.connect(BinaryClient.java:54)
at redis.clients.jedis.BinaryJedis.connect(BinaryJedis.java:1657)
at redis.clients.jedis.JedisPool$JedisFactory.makeObject(JedisPool.java:63)
at org.apache.commons.pool.impl.GenericObjectPool.borrowObject(GenericObjectPool.java:1188)
at redis.clients.util.Pool.getResource(Pool.java:20)
... 6 more  

Caused by: java.net.SocketTimeoutException: connect timed out
at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
at java.net.DualStackPlainSocketImpl.socketConnect(Unknown Source)
at java.net.AbstractPlainSocketImpl.doConnect(Unknown Source)
at java.net.AbstractPlainSocketImpl.connectToAddress(Unknown Source)
at java.net.AbstractPlainSocketImpl.connect(Unknown Source)
at java.net.PlainSocketImpl.connect(Unknown Source)
at java.net.SocksSocketImpl.connect(Unknown Source)
at java.net.Socket.connect(Unknown Source)
at redis.clients.jedis.Connection.connect(Connection.java:119)
... 11 more

答案 1

我注意到，如果 Redis 未运行，可以并且将会引发此异常。只是一个抬头。

答案 2

根据Rick Hanlon的回答，如果将Redis与Spring Boot一起使用，也会引发此异常。

如果您使用的是Spring Boot，那么仅依赖Redis是不够的;您还需要从 redis.io 手动下载并安装计算机上的Redis，然后在Bash终端上运行它：

me@my_pc:/path/to/redis/dir$ ./src/redis-server ./redis.conf

运行服务器后，您需要在使用 Redis 的所有应用中添加相关行：

application.properties:

...
spring.redis.host: <yourhost> // usually localhost, but can also be on a LAN
spring.redis.port: <yourport> // usually 6379, but settable in redis.conf

application.yml:

...
spring:
  redis:
    host: <yourhost> // usually localhost, but can also be on a LAN
    port: <yourport> // usually 6379, but settable in redis.conf