ruby TCPServer 错误：地址已被使用 - bind(2)
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TCPServer Error: Address already in use - bind(2)
提问by Omnipresent
Jekyll was working fine for me few weeks back but now all of a sudden it gives me the following error:
几周前 Jekyll 对我来说工作正常，但现在突然间它给了我以下错误：
TCPServer Error: Address already in use - bind(2)
INFO WEBrick::HTTPServer#start: pid=7300 port=4000
% lsof -i :4000
<fetches nothing>
Even though nothing is running on the port. Below are the details:
即使端口上没有运行任何东西。以下是详细信息：
% jekyll --version
Jekyll 0.11.2
% where jekyll
/home/bhaarat/.rvm/gems/ruby-1.9.2-p290/bin/jekyll
/usr/bin/jekyll
% ruby --version
ruby 1.9.2p290 (2011-07-09 revision 32553) [i686-linux]
% rvm --version
rvm 1.10.0
Here is the output
这是输出
% jekyll --server
Configuration from /home/bhaarat/blog/omnipresent.github.com/_config.yml
Auto-regenerating enabled: /home/bhaarat/blog/omnipresent.github.com -> /home/bhaarat/blog/omnipresent.github.com/_site
[2012-04-21 13:46:40] regeneration: 38 files changed
[2012-04-21 13:46:40] INFO WEBrick 1.3.1
[2012-04-21 13:46:40] INFO ruby 1.9.2 (2011-07-09) [i686-linux]
[2012-04-21 13:46:40] WARN TCPServer Error: Address already in use - bind(2)
[2012-04-21 13:46:40] INFO WEBrick::HTTPServer#start: pid=7382 port=4000
I know the address isn't in use and jekyll is probably breaking for some other reason but throwing that error. What are my options? I've tried re-installing as well.
我知道该地址未在使用中，并且 jekyll 可能由于其他原因而中断，但抛出了该错误。我有哪些选择？我也试过重新安装。
回答by Naoise Golden
Type this in your terminal to find out the PID of the process that's using the 3000 port:
在终端中输入以下内容以找出使用 3000 端口的进程的 PID：
$ lsof -wni tcp:3000
Then, use the number in the PID column to kill the process:
然后，使用 PID 列中的数字来终止进程：
$ kill -9 PID
回答by Fonzie
I was not qualified to post comment. So I added a new answer.
我没有资格发表评论。所以我添加了一个新的答案。
I encountered this problem on Mac OS X 10.10.3. And I had never installed/used Jekyll before. I was not able to start jekyll server with its default port number 4000. The reason was that the port was the same as what NoMachine used. With
我在 Mac OS X 10.10.3 上遇到了这个问题。而且我之前从未安装/使用过 Jekyll。我无法使用默认端口号 4000 启动 jekyll 服务器。原因是该端口与 NoMachine 使用的端口相同。和
$ sudo lsof -wni tcp:4000
Note: Running this command without sudowill have no output.
注意：sudo在没有的情况下运行此命令将没有输出。
I saw this output:
我看到了这个输出：
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
nxd 449 nx 3u IPv4 0x8d22************ 0t0 TCP *:terabase (LISTEN)
nxd 449 nx 4u IPv6 0x8d22************ 0t0 TCP *:terabase (LISTEN)
The port 4000 was occupied by nxd, which was the process started by NoMachine. And
4000端口被 占用nxd，是NoMachine启动的进程。和
$ sudo kill -9 449
would not work, because NoMachine's nxd process would keep restarting, with a new PID.
不会工作，因为 NoMachine 的 nxd 进程会不断重新启动，并使用新的 PID。
Therefore, I had to either:
因此，我不得不：
Changed my jekyll server port in the site
_config.ymlto another spared one. I appended the line below to_config.ymland it worked.port: 3000 # change server port to 3000
将站点中的 jekyll 服务器端口更改
_config.yml为另一个备用端口。我将下面的行附加到_config.yml它的工作。port: 3000 # change server port to 3000
or
或者
- Changed NoMachine's default nxd port, or Uninstall NoMachine
- 更改了 NoMachine 的默认 nxd 端口，或卸载 NoMachine
回答by kevin
Ctrl-Zdoesn't terminate a program, but rather suspends it and sends it to the background. You can resume the program with the "fg" command. To actually terminate it, use Ctrl-C.
Ctrl-Z不会终止程序，而是挂起它并将其发送到后台。您可以使用“fg”命令恢复程序。要实际终止它，请使用Ctrl-C.
The actual error message seems to be bogus and can be ignored. I am getting the same error message "address in use" but jekyll works fine anyway at the expected port.
实际的错误消息似乎是假的，可以忽略。我收到相同的错误消息“正在使用的地址”，但无论如何 jekyll 在预期的端口上都可以正常工作。
回答by wfwei
I have met this problem recently.
我最近遇到了这个问题。
I tried out all the method mentioned above, and even restarted my computer, but still couldn't solve it!!! Then I removed the jekyll and installed a new version, it just worked.
上面的方法我都试过了，甚至重启了电脑，还是解决不了！！！然后我删除了 jekyll 并安装了一个新版本，它正常工作。
gem uninstall jekyll & gem install jekyll(maybe you need super user priviledge).
gem uninstall jekyll & gem install jekyll（也许您需要超级用户权限）。
If you really get annoyed with similar bugs, this sb method is worth a try...
如果你真的对类似的 bug 感到恼火，这个 sb 方法值得一试......
回答by Manoj Datt
First you need to find PID of the process that's using the 3000 port:
首先，您需要找到使用 3000 端口的进程的 PID：
$ps -ef
Output Like this:
输出像这样：
1003 4953 2614 0 08:51 pts/0 00:00:00 -bash
1003 5634 1 0 08:56 pts/0 00:00:00 spring server | moviestore | started 2 hours ago
1003 5637 5634 0 08:56 ? 00:00:01 spring app | moviestore | started 2 hours ago | development mode
1003 6078 4953 0 09:03 pts/0 00:00:03 puma 3.6.0 (tcp://localhost:3000) [moviestore]
1003 6117 2614 0 09:03 pts/1 00:00:00 -bash
root 6520 2 0 09:57 ? 00:00:00 [kworker/u8:2]
root 6936 1225 0 11:09 ? 00:00:00 [lightdm] <defunct>
1003 7084 1 0 11:09 ? 00:00:00 /usr/bin/python /usr/share/apport/apport-gtk
1003 7475 1 0 11:10 ? 00:00:00 /usr/bin/python /usr/share/apport/apport-gtk
root 8739 1225 1 11:29 tty8 00:00:11 /usr/bin/X :1 -auth /var/run/lightdm/root/:1 -nolisten tcp vt8 -novtswitch
root 8853 1225 0 11:29 ? 00:00:00 lightdm --session-child 13 22
1002 8943 1 0 11:30 ? 00:00:00 /usr/bin/gnome-keyring-daemon --daemonize --login
1002 8954 8853 0 11:30 ? 00:00:00 gnome-session --session=ubuntu
1002 8992 8954 0 11:30 ? 00:00:00 /usr/bin/ssh-agent /usr/bin/dbus-launch --exit-with-session gnome-session --session=ubuntu
1002 8995 1 0 11:30 ? 00:00:00 /usr/bin/dbus-launch --exit-with-session gnome-session --session=ubuntu
1002 8996 1 0 11:30 ? 00:00:00 //bin/dbus-daemon --fork --print-pid 5 --print-address 7 --session
1002 9007 8954 0 11:30 ? 00:00:00 /usr/lib/gnome-settings-daemon/gnome-settings-daemon
1002 9015 1 0 11:30 ? 00:00:00 /usr/lib/gvfs/gvfsd
1002 9018 8954 1 11:30 ? 00:00:07 compiz
1002 9021 1 0 11:30 ? 00:00:00 /usr/lib/x86_64-linux-gnu/gconf/gconfd-2
1002 9028 8954 0 11:30 ? 00:00:00 /usr/lib/policykit-1-gnome/polkit-gnome-authentication-agent-1
1002 9029 8954 0 11:30 ? 00:00:01 nautilus -n
1002 9030 8954 0 11:30 ? 00:00:00 /usr/lib/gnome-settings-daemon/gnome-fallback-mount-helper
1002 9031 8954 0 11:30 ? 00:00:00 nm-applet
1002 9032 8954 0 11:30 ? 00:00:02 /opt/mTrac/mTrac
1002 9033 8954 0 11:30 ? 00:00:00 bluetooth-applet
1002 9045 9032 0 11:30 ? 00:00:00 /opt/mTrac/mTrac --type=zygote --no-sandbox
1002 9050 1 0 11:30 ? 00:00:00 /usr/lib/gvfs/gvfs-gdu-volume-monitor
1002 9054 1 0 11:30 ? 00:00:00 /usr/bin/pulseaudio --start --log-target=syslog
1002 9057 1 0 11:30 ? 00:00:00 /usr/lib/gvfs/gvfs-gphoto2-volume-monitor
1002 9062 1 0 11:30 ? 00:00:00 /usr/lib/gvfs/gvfs-afc-volume-monitor
here you can see :
在这里你可以看到：
1003 6078 4953 0 09:03 pts/0 00:00:03 puma 3.6.0 (tcp://localhost:3000) [moviestore]
localhost:3000 have pid: 6078
本地主机:3000 有 pid: 6078
kill that process by
杀死该进程
$sudo kill 6078
then run
然后运行
$rails s
回答by Avinash Kumar Singh
we can user fuser command
我们可以使用 fuser 命令
fuser -k 3000/tcp
fuser -k 3000/tcp
回答by harvey
Check that you don't have another terminal open where you are already running a server. If that is the case, do a CTRL-Cto shutdown the server, and that will free the port/address.
检查您没有打开另一个终端，您已经在运行服务器。如果是这种情况，请执行CTRL-C以关闭服务器，这将释放端口/地址。
回答by Arvind
work around
解决
in /_siterun: python -m SimpleHTTPServer 8080
在/_site运行：python -m SimpleHTTPServer 8080
