On 6 Feb 2018, at 06:13, tor <tor@anondroid.com> wrote:

If anyone wants to disable directory document caching, they can set:
DirPort 0
DirCache 0

This results in the following log entry:

[warn] DirCache is disabled and we are configured as a relay. This may disqualify us from becoming a guard in the future.

That's a bit vague. What's that about?

If you have the CPU, RAM, and disk space, you should leave these settings on.

Will disabling the DirCache affect the Guard flag (today)?

It will affect some client versions' choice of guards:

https://trac.torproject.org/projects/tor/ticket/24312#comment:4