Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

Tuning unit file for medium sized setups #4958

Merged
merged 2 commits into from
Mar 6, 2017
Merged

Tuning unit file for medium sized setups #4958

merged 2 commits into from
Mar 6, 2017

Commits on Jan 31, 2017

  1. Tuning unit file for medium sized setups 

    We would propose to introduce the TasksMax setting in the unit file. The default value of 512 seems too low, at least for our setup. In addition, if present in the unit file, people will be aware of it.

LimitNOFILE seems also a little bit low.

Our setup consists of 8 DNS backend servers. Each Server with 5 IPv4 and 5 IPv6 addresses. That means dnsdist has to deal with 80 backends. For this setup TasksMax=512 (default) was too low and dnsdist stopped working correctly. We saw many of these messages:

Error creating a TCP thread: Resource temporarily unavailable
Had an error accepting new webserver connection: Resource temporarily unavailable
    @paddg
    paddg committed Jan 31, 2017
    Configuration menu
    Copy the full SHA
    6e7a865 View commit details
    Browse the repository at this point in the history

Commits on Feb 21, 2017

  1. dnsdist: Set TasksMax to 8192, recent distros default to more than 4k

    @rgacogne
    rgacogne committed Feb 21, 2017
    Configuration menu
    Copy the full SHA
    df7c7db View commit details
    Browse the repository at this point in the history