0%[连接in.archive.ubuntu.com花费的时间太长

每当我运行必须连接到archive.ubuntu.com的命令时，该命令花费的时间太长，无法完成它的任务

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)]

ping 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

我们可以看到上面我的速度并不慢

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请帮助我避免此问题。每次我遇到问题，必须等待任务完成。

您的问题可能在于包管理器试图通过ipv6连接到存储库

查看您提供的日志中的这一行：0%[连接到in.archive.ubuntu.com（2001:67c:1360:8001:：21）]

0% [Connecting to 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解决了这个问题

运行apt get时添加

-o Acquire:：ForceIPv4=true

如果要使此设置成为临时设置，应创建

/etc/apt/apt.conf.d/99force-ipv4

，并将

Acquire:：ForceIPv4设置为“true”；

：

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

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您可以强制apt使用IPV4，如下所示

apt-get -o Acquire::ForceIPv4=true update
apt-get -o Acquire::ForceIPv4=true upgrade

至少对于Ubuntu 16来说仍然是正确的。要避免使用IPv6（这很可能会导致问题），并强制使用IPv4，只需打开文件：

sudo nano /etc/gai.conf

和取消注释行

precedence ::ffff:0:0/96  100

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这个问题与编程无关。它更适合于