阿里雲服務器安裝redis啓動失敗問題排查

問題描述

安裝redis後, 啓動失敗

排查步驟記錄

0/查看啓動日誌

13519:M 02 Jun 2020 16:47:53.070 # WARNING: The TCP backlog setting of 511 cannot be enforced because /proc/sys/net/core/somaxconn is set to the lower value of 128.
13519:M 02 Jun 2020 16:47:53.070 # Server initialized
13519:M 02 Jun 2020 16:47:53.070 # 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.
13519:M 02 Jun 2020 16:47:53.070 # 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.
13519:M 02 Jun 2020 16:47:53.070 * DB loaded from disk: 0.000 seconds
13519:M 02 Jun 2020 16:47:53.070 * Ready to accept connections
13519:signal-handler (1591088608) Received SIGTERM scheduling shutdown...
13519:M 02 Jun 2020 17:03:28.561 # User requested shutdown...
13519:M 02 Jun 2020 17:03:28.561 * Saving the final RDB snapshot before exiting.
13519:M 02 Jun 2020 17:03:28.563 * DB saved on disk
13519:M 02 Jun 2020 17:03:28.563 * Removing the pid file.
13519:M 02 Jun 2020 17:03:28.563 # Redis is now ready to exit, bye bye...
13585:C 02 Jun 2020 17:04:00.422 # oO0OoO0OoO0Oo Redis is starting oO0OoO0OoO0Oo
13585:C 02 Jun 2020 17:04:00.422 # Redis version=5.0.7, bits=64, commit=00000000, modified=0, pid=13585, just started
13585:C 02 Jun 2020 17:04:00.422 # Configuration loaded
13586:M 02 Jun 2020 17:04:00.425 # Could not create server TCP listening socket 47.244.127.184:6379: bind: Cannot assign requested address
13586:M 02 Jun 2020 17:04:00.425 # Configured to not listen anywhere, exiting.

 

1/修改redis.conf

bind 127.0.0.1

bind 外網ip

啓動失敗, 忽然想起6379端口沒開

2/修改阿里雲服務器安全組, 開放6379端口

啓動依然失敗

3/再次修改redis.conf

經運維朋友提醒, 雲服務器有內網ip和外網ip, 然後再次修改redis.conf

bind 127.0.0.1
bind 雲服務器外網ip
bind 雲服務器內網ip

啓動成功, 遠程連接成功

4/最終測試結果

三個都得放開, 或者都註釋才實現遠程連接redis

 

至此結束, 有問題拍磚.

 

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