springboot redis為何不斷在顯示打開(kāi)關(guān)閉連接？

2018-02-12 11:51:57 [http-nio-1920-exec-7] DEBUG org.springframework.data.redis.core.RedisConnectionUtils - Closing Redis Connection
2018-02-12 11:51:57 [http-nio-1920-exec-7] DEBUG org.springframework.data.redis.core.RedisConnectionUtils - Opening RedisConnection
2018-02-12 11:51:57 [http-nio-1920-exec-7] DEBUG org.springframework.data.redis.core.RedisConnectionUtils - Closing Redis Connection
2018-02-12 11:51:57 [http-nio-1920-exec-7] DEBUG org.springframework.data.redis.core.RedisConnectionUtils - Opening RedisConnection
2018-02-12 11:51:57 [http-nio-1920-exec-7] DEBUG org.springframework.data.redis.core.RedisConnectionUtils - Closing Redis Connection
2018-02-12 11:51:57 [http-nio-1920-exec-7] DEBUG org.springframework.data.redis.core.RedisConnectionUtils - Opening RedisConnection
2018-02-12 11:51:57 [http-nio-1920-exec-7] DEBUG org.springframework.data.redis.core.RedisConnectionUtils - Closing Redis Connection
2018-02-12 11:51:57 [http-nio-1920-exec-7] DEBUG org.springframework.data.redis.core.RedisConnectionUtils - Opening RedisConnection
2018-02-12 11:51:57 [http-nio-1920-exec-7] DEBUG org.springframework.data.redis.core.RedisConnectionUtils - Closing Redis Connection
2018-02-12 11:52:00 [pool-2-thread-1] DEBUG org.springframework.session.data.redis.RedisSessionExpirationPolicy - Cleaning up sessions expiring at Mon Feb 12 11:52:00 CST 2018
2018-02-12 11:52:00 [pool-2-thread-1] DEBUG org.springframework.data.redis.core.RedisConnectionUtils - Opening RedisConnection
2018-02-12 11:52:00 [pool-2-thread-1] DEBUG org.springframework.data.redis.core.RedisConnectionUtils - Closing Redis Connection
2018-02-12 11:52:00 [pool-2-thread-1] DEBUG org.springframework.data.redis.core.RedisConnectionUtils - Opening RedisConnection
2018-02-12 11:52:00 [pool-2-thread-1] DEBUG org.springframework.data.redis.core.RedisConnectionUtils - Closing Redis Connection

剛配置好基本框架，但是看日志，發(fā)現(xiàn)啥也不干，基本是每5，6秒就打開(kāi)關(guān)閉，會(huì)不會(huì)對(duì)性能有影響？