本地环境redis或者jedis频繁断开连接,timeout

问题,Redis连接超时

记录些问题，这是之前碰见的bug，但是具有参考性，百度无法搜到。故此记录。

Redis 配置如下：

redis，刚起动正常，但是不久之后，就直接报错，断开链接,报错如下。有时甚至无法启动。一开始以为是mac的兼容的问题，导致redis启动存在问题，但是在redis的仓库github上没有相关的关于redis兼容的issue推测是其他原因导致的，报错内容如下:

Caused by: org.springframework.data.redis.RedisConnectionFailureException: Cannot get Jedis connection
	at org.springframework.data.redis.connection.jedis.JedisConnectionFactory.fetchJedisConnector(JedisConnectionFactory.java:271)
	at org.springframework.data.redis.connection.jedis.JedisConnectionFactory.getConnection(JedisConnectionFactory.java:454)
	at org.springframework.data.redis.core.RedisConnectionUtils.fetchConnection(RedisConnectionUtils.java:193)
	at org.springframework.data.redis.core.RedisConnectionUtils.doGetConnection(RedisConnectionUtils.java:144)
	at org.springframework.data.redis.core.RedisConnectionUtils.getConnection(RedisConnectionUtils.java:105)
	at org.springframework.data.redis.core.RedisTemplate.execute(RedisTemplate.java:393)
	at org.springframework.data.redis.core.RedisTemplate.execute(RedisTemplate.java:373)
	at org.springframework.data.redis.core.RedisTemplate.doWithKeys(RedisTemplate.java:785)
	at org.springframework.data.redis.core.RedisTemplate.delete(RedisTemplate.java:588)
	at cn.minfengyu.utils.RedisUtil.delete(RedisUtil.java:68)
	at cn.minfengyu.system.config.AppStartupRunner.putRight(AppStartupRunner.java:38)
	at cn.minfengyu.system.config.AppStartupRunner.run(AppStartupRunner.java:27)
	at org.springframework.boot.SpringApplication.callRunner(SpringApplication.java:760)
	... 5 common frames omitted
Caused by: redis.clients.jedis.exceptions.JedisConnectionException: java.net.SocketTimeoutException: Read timed out
	at redis.clients.jedis.util.RedisInputStream.ensureFill(RedisInputStream.java:208)
	at redis.clients.jedis.util.RedisInputStream.readByte(RedisInputStream.java:46)
	at redis.clients.jedis.Protocol.process(Protocol.java:126)
	at redis.clients.jedis.Protocol.read(Protocol.java:192)
	at redis.clients.jedis.Connection.readProtocolWithCheckingBroken(Connection.java:316)
	at redis.clients.jedis.Connection.getStatusCodeReply(Connection.java:243)
	at redis.clients.jedis.Connection.auth(Connection.java:372)
	at redis.clients.jedis.Connection.initializeFromClientConfig(Connection.java:345)
	at redis.clients.jedis.Connection.<init>(Connection.java:53)
	at redis.clients.jedis.Jedis.<init>(Jedis.java:214)
	at redis.clients.jedis.JedisFactory.makeObject(JedisFactory.java:181)
	at org.apache.commons.pool2.impl.GenericObjectPool.create(GenericObjectPool.java:571)
	at org.apache.commons.pool2.impl.GenericObjectPool.borrowObject(GenericObjectPool.java:298)
	at org.apache.commons.pool2.impl.GenericObjectPool.borrowObject(GenericObjectPool.java:223)
	at redis.clients.jedis.util.Pool.getResource(Pool.java:34)
	at redis.clients.jedis.JedisPool.getResource(JedisPool.java:373)
	at redis.clients.jedis.JedisPool.getResource(JedisPool.java:17)
	at org.springframework.data.redis.connection.jedis.JedisConnectionFactory.fetchJedisConnector(JedisConnectionFactory.java:262)
	... 17 common frames omitted
Caused by: java.net.SocketTimeoutException: Read timed out
	at java.base/sun.nio.ch.NioSocketImpl.timedRead(NioSocketImpl.java:283)
	at java.base/sun.nio.ch.NioSocketImpl.implRead(NioSocketImpl.java:309)
	at java.base/sun.nio.ch.NioSocketImpl.read(NioSocketImpl.java:350)
	at java.base/sun.nio.ch.NioSocketImpl$1.read(NioSocketImpl.java:803)
	at java.base/java.net.Socket$SocketInputStream.read(Socket.java:966)
	at java.base/java.io.InputStream.read(InputStream.java:218)
	at redis.clients.jedis.util.RedisInputStream.ensureFill(RedisInputStream.java:202)
	... 34 common frames omitted

解决办法:

查了许久，发现是Redis连接用的是localhost域名，使用的是域名解析，而我开起了clash For windows客户端，导致域名解析匹配规则交给远端DNS服务器去解析了,远端DNS无法解析localhost域名导致连接失败的：

);

1. 修改localhost=》 127.0.0.1

2. 关闭Clash for windows 客户端

3. 添加clash规则直接将localhost解析为127.0.01.