启动时报的警告:
1、Warning: no config file specified, using the default config. In order to specify a config file use ./src/redis-server /path/to/redis.conf
就因为这个原因,无法连接到远程redis:Unable to connect to 192.168.163.131:6379
解决:
[root@cent7-zuoys src]# ./redis-server ../redis.conf
2、
WARNING overcommit_memory is set to 0! Background save may fail under low memory condition. To fix this issue add ‘vm.overcommit_memory = 1’ to /etc/sysctl.conf and then reboot or run the command ‘sysctl vm.overcommit_memory=1’ for this to take effect.
解决:
编辑/etc/sysctl.conf ,改vm.overcommit_memory=1,然后sysctl -p 使配置文件生效
3、The TCP backlog setting of 511 cannot be enforced because /proc/sys/net/core/somaxconn is set to the lower value of 128.
解决:
在/etc/sysctl.conf中添加:net.core.somaxconn = 2048,然后在终端中执行sysctl -p
4、
you have Transparent Huge Pages (THP) support enabled in your kernel.?This will create latency and memory usage issues with Redis.?To fix thisissue run the?command ‘echo never > /sys/kernel/mm/transparent_hugepage/enabled’ as root,?and add it to your /etc/rc.local in order to retain thesetting after a reboot.?Redis must be restarted after THP is disabled.
解决:
临时解决方法: echo never > /sys/kernel/mm/transparent_hugepage/enabled。 永久解决方法: 将其写入/etc/rc.local文件中。
远程访问redis报错:
org.springframework.data.redis.RedisConnectionFailureException: Unable to connect to Redis; nested exception is io.lettuce.core.RedisConnectionException: Unable to connect to 10.134.253.30:6379
解决:
vi redis.conf
1、注释掉 bind 127.0.0.1,即可让所有ip访问 2、protected-mode no