无法在ubuntu 18.04上安装redis服务器

我已经从17.10升级到ubuntu 18.04。无法完全安装redis服务器包。我看了一下/var/log/syslog，它说

==> /var/log/syslog <==
Jun  3 13:04:10 qaz-mko systemd[1]: redis-server.service: Can't open PID file /var/run/redis/redis-server.pid (yet?) after start: No such file or directory
Jun  3 13:05:01 qaz-mko CRON[3429]: (root) CMD (command -v debian-sa1 > /dev/null && debian-sa1 1 1)
Jun  3 13:05:40 qaz-mko systemd[1]: redis-server.service: Start operation timed out. Terminating.
Jun  3 13:05:40 qaz-mko systemd[1]: redis-server.service: Failed with result 'timeout'.
Jun  3 13:05:40 qaz-mko systemd[1]: Failed to start Advanced key-value store.
Jun  3 13:05:40 qaz-mko systemd[1]: redis-server.service: Service hold-off time over, scheduling restart.
Jun  3 13:05:40 qaz-mko systemd[1]: redis-server.service: Scheduled restart job, restart counter is at 13.
Jun  3 13:05:40 qaz-mko systemd[1]: Stopped Advanced key-value store.
Jun  3 13:05:40 qaz-mko systemd[1]: Starting Advanced key-value store...
Jun  3 13:05:40 qaz-mko systemd[1]: redis-server.service: Can't open PID file /var/run/redis/redis-server.pid (yet?) after start: No such file or directory

==> /var/log/redis/redis-server.log <==
3416:C 03 Jun 13:02:39.637 # Configuration loaded
3417:M 03 Jun 13:02:39.639 # Creating Server TCP listening socket ::1:6379: bind: Cannot assign requested address
3423:C 03 Jun 13:04:10.121 # oO0OoO0OoO0Oo Redis is starting oO0OoO0OoO0Oo
3423:C 03 Jun 13:04:10.121 # Redis version=4.0.9, bits=64, commit=00000000, modified=0, pid=3423, just started
3423:C 03 Jun 13:04:10.122 # Configuration loaded
3424:M 03 Jun 13:04:10.124 # Creating Server TCP listening socket ::1:6379: bind: Cannot assign requested address
3435:C 03 Jun 13:05:40.602 # oO0OoO0OoO0Oo Redis is starting oO0OoO0OoO0Oo
3435:C 03 Jun 13:05:40.602 # Redis version=4.0.9, bits=64, commit=00000000, modified=0, pid=3435, just started
3435:C 03 Jun 13:05:40.602 # Configuration loaded
3436:M 03 Jun 13:05:40.604 # Creating Server TCP listening socket ::1:6379: bind: Cannot assign requested address

---

我找到了罪犯。不久前我禁用了ipv6。我重新打开它，它安装良好，启动良好。如果redis.conf文件仅支持IPv4模式，您可能会更改该文件以强制其使用IPv4，然后您可能会在不使用IPv6的情况下运行该文件。

即使禁用IPv6，也可以让redis服务器运行

只需从

bind

config选项（默认位于

/etc/redis/redis.conf

）中删除

：：1

IPv6环回地址：

---

现在redis不会尝试使用IPv6网络。

好吧，我刚从Ubuntu 16.04升级到18.04时遇到了类似的问题。上面的解决方案（禁用ipv6）在这里没有帮助。很可能是我，但我也不明白为什么会有帮助，因为错误的重要部分似乎是

Jun  3 13:05:40 qaz-mko systemd[1]: redis-server.service: Can't open PID file /var/run/redis/redis-server.pid (yet?) after start: No such file or directory

显然，创建文件本身并不一定能解决这个问题。但是，帮助的是创建目录并授予它必要的权限：

mkdir -p /var/run/redis
chown redis:redis /var/run/redis

---

它不会在重新启动时持续存在。虽然我仍在试图找出解决方案，但快速而肮脏的解决方法是将上述行放入rc。local

请接受此答案，因为这个问题不再需要关注。这对我也起到了作用。在我的例子中，我编辑了

/etc/sysctl.conf

文件并删除了以下行：

net.ipv6.conf.all.disable\u ipv6=1

这是正确的答案。调整redis以适应周围环境，而不是相反。

- bind 127.0.0.1 ::1
+ bind 127.0.0.1

Jun  3 13:05:40 qaz-mko systemd[1]: redis-server.service: Can't open PID file /var/run/redis/redis-server.pid (yet?) after start: No such file or directory

mkdir -p /var/run/redis
chown redis:redis /var/run/redis