Redis报错：WARNING: The TCP backlog setting of 511 cannot be enforced because /proc/sys/net/core/somaxconn is set to the lower value of 128

1:C 08 Dec 2023 05:47:33.348 # oO0OoO0OoO0Oo Redis is starting oO0OoO0OoO0Oo
1:C 08 Dec 2023 05:47:33.348 # Redis version=7.0.5, bits=64, commit=00000000, modified=0, pid=1, just started
1:C 08 Dec 2023 05:47:33.348 # Configuration loaded
1:M 08 Dec 2023 05:47:33.349 * monotonic clock: POSIX clock_gettime
1:M 08 Dec 2023 05:47:33.349 * Running mode=standalone, port=16379.
1:M 08 Dec 2023 05:47:33.349 # WARNING: The TCP backlog setting of 511 cannot be enforced because /proc/sys/net/core/somaxconn is set to the lower value of 128.
1:M 08 Dec 2023 05:47:33.349 # Server initialized
1:M 08 Dec 2023 05:47:33.349 # 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.
1:M 08 Dec 2023 05:47:33.350 * Ready to accept connections

WARNING: The TCP backlog setting of 511 cannot be enforced because /proc/sys/net/core/somaxconn is set to the lower value of 128.

# 临时解决方法：（即下次启动还须要修改此值）
echo 511 > /proc/sys/net/core/somaxconn

# 永久解决方法：（即之后启动还须要修改此值）
将其写入/etc/rc.local文件中。

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.

# 添加参数
echo "vm.overcommit_memory=1" >> /etc/sysctl.conf

# 加载
sysctl vm.overcommit_memory=1

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.
意思是：你使用的是透明大页，可能致使redis延迟和内存使用问题。执行 echo never > /sys/kernel/mm/transparent_hugepage/enabled 修复该问题。
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。

Warning: 32 bit instance detected but no memory limit set. Setting 3 GB maxmemory limit with 'noeviction' policy now.
意思是：警告:检测到32位实例，但没有设置内存限制。如今设置3 GB的maxmemory限制。
解决方法：
修改配置文件 redis.conf，将 maxmemory 设置为 maxmemory 751619276