0% [连接到 in.archive.ubuntu.com 需要很长时间

Question

每当我运行必须连接到 archive.ubuntu.com 的命令时，该命令需要很长时间才能完成它的任务。

sudo apt install oracle-java8-installer -y
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following additional packages will be installed:
  gsfonts-x11 java-common oracle-java8-set-default
Suggested packages:
  binfmt-support visualvm ttf-baekmuk | ttf-unfonts | ttf-unfonts-core ttf-kochi-gothic | ttf-sazanami-gothic ttf-kochi-mincho
  | ttf-sazanami-mincho ttf-arphic-uming
The following NEW packages will be installed:
  gsfonts-x11 java-common oracle-java8-installer oracle-java8-set-default
0 upgraded, 4 newly installed, 0 to remove and 29 not upgraded.
Need to get 54.7 kB of archives.
After this operation, 272 kB of additional disk space will be used.
Get:1 http://ppa.launchpad.net/webupd8team/java/ubuntu artful/main amd64 oracle-java8-installer all 8u171-1~webupd8~0 [33.3 kB]
Get:2 http://ppa.launchpad.net/webupd8team/java/ubuntu artful/main amd64 oracle-java8-set-default all 8u171-1~webupd8~0 [6,846 B]
0% [Connecting to in.archive.ubuntu.com (2001:67c:1360:8001::21)]

平 8.8.8.8 ：

ping 8.8.8.8
PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data.
64 bytes from 8.8.8.8: icmp_seq=1 ttl=56 time=62.1 ms
64 bytes from 8.8.8.8: icmp_seq=2 ttl=56 time=51.9 ms
64 bytes from 8.8.8.8: icmp_seq=3 ttl=56 time=67.5 ms
64 bytes from 8.8.8.8: icmp_seq=4 ttl=56 time=58.4 ms
64 bytes from 8.8.8.8: icmp_seq=5 ttl=56 time=71.9 ms
64 bytes from 8.8.8.8: icmp_seq=6 ttl=56 time=71.0 ms
64 bytes from 8.8.8.8: icmp_seq=7 ttl=56 time=60.5 ms
64 bytes from 8.8.8.8: icmp_seq=8 ttl=56 time=49.0 ms
^C
--- 8.8.8.8 ping statistics ---
8 packets transmitted, 8 received, 0% packet loss, time 7005ms
rtt min/avg/max/mdev = 49.028/61.584/71.951/7.865 ms

从上面可以看出我的速度并不慢。

请帮助我避免这个问题。每次我都卡住了，必须等到任务完成。

Answer 1

您的问题可能在于包管理器尝试通过 ipv6 连接到存储库。

从您提供的日志中查看此行：

0% [连接到 in.archive.ubuntu.com ( 2001:67c:1360:8001::21 )]

我以前也遇到过同样的问题，我通过强制 pm 使用 ipv4 来解决它。

-o Acquire::ForceIPv4=true运行时添加apt-get。

如果你想让这个设置预先存在，你应该创建/etc/apt/apt.conf.d/99force-ipv4并放入Acquire::ForceIPv4 "true";它：

echo 'Acquire::ForceIPv4 "true";' | sudo tee /etc/apt/apt.conf.d/99force-ipv4

也可以看看