Redis问题汇总
启动警告合集
1、WARNING: The TCP backlog setting of 511 cannot be enforced because /proc/sys/net/core/somaxconn is set to the lower value of 128.
TCP积压值过小问题
echo "net.core.somaxconn = 1024" >> /etc/sysctl.conf
sysctl -p2、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.
解决内存方面问题
echo "vm.overcommit_memory = 1" >> /etc/sysctl.conf
sysctl -p3、WARNING you have Transparent Huge Pages (THP) support enabled in your kernel. This will create latency and memory usage issues with Redis. To fix this issue 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 the setting after a reboot. Redis must be restarted after THP is disabled.
echo 'echo never > /sys/kernel/mm/transparent_hugepage/enabled' >> /etc/rc.local内核中启用了透明的大页面THP,reboot重启后生效
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