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Exa-Networks / exabgp

The BGP swiss army knife of networking
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ExaBGP lost the helper process for this peer #1019

Closed ZhiYiFang closed 3 years ago

ZhiYiFang commented 3 years ago

I downloaded the project on my mac computer and ran the example below etc. It can run normally, but I run the same example on my server and it will report an error 12:49:50 | 14940 | welcome | Thank you for using ExaBGP 12:49:50 | 14940 | version | 4.2.11 12:49:50 | 14940 | interpreter | 3.5.3 (default, Nov 18 2020, 21:09:16) [GCC 6.3.0 20170516] ...... 12:49:50 | 14940 | cli control | - /run/exabgp/ 12:49:50 | 14940 | cli control | - /run/0/ 12:49:50 | 14940 | cli control | - /run/ 12:49:50 | 14940 | cli control | - /var/run/exabgp/ 12:49:50 | 14940 | cli control | - /var/run/0/ 12:49:50 | 14940 | cli control | - /var/run/ 12:49:50 | 14940 | cli control | - /usr/local/run/exabgp/ 12:49:50 | 14940 | cli control | - /usr/local/run/0/ 12:49:50 | 14940 | cli control | - /usr/local/run/ 12:49:50 | 14940 | cli control | - /usr/local/var/run/exabgp/ 12:49:50 | 14940 | cli control | - /usr/local/var/run/0/ 12:49:50 | 14940 | cli control | - /usr/local/var/run/ 12:49:50 | 14940 | cli control | please make them in one of the folder with the following commands: 12:49:50 | 14940 | cli control | > mkfifo /root/exabgp/etc/exabgp/run/exabgp.{in,out} 12:49:50 | 14940 | cli control | > chmod 600 /root/exabgp/etc/exabgp/run/exabgp.{in,out} 12:49:50 | 14940 | configuration | performing reload of exabgp 4.2.11 12:49:50 | 14940 | reactor | loaded new configuration successfully 12:49:50 | 14940 | process | ExaBGP lost the helper process for this peer - stopping The os on the server is Debian.

thomas-mangin commented 3 years ago

ExaBGP just told you what is wrong: "ExaBGP lost the helper process for this peer". I wish you good luck finding out why .. this is not a bug with ExaBGP.

ZhiYiFang commented 3 years ago

I have solved the problem. Running exabgp with root privileges will produce this problem. We can change the environment to solve the problem.

  1. Create a file : /usr/local/etc/exabgp/exabgp.env
  2. Execute : exabgp --fi > /usr/local/etc/exabgp/exabgp.env
  3. Edit the /usr/local/etc/exabgp/exabgp.env and change user = 'nobody' to user = 'root' Finally, exabgp will run with this environment file. If you also execute exabgp with root privileges, you can solve the problems by these steps. Hope it can help others.
markusju commented 1 year ago

Thanks, @ZhiYiFang Thank you, you left a helpful comment here :)

@thomas-mangin This is a kind of a default configuration setting issue in my view. Also it seems distribution packages put "exabgp" in /usr/sbin/ which makes this issue worse, as users are tempted to run exabgp as root with these default settings.