doc : update cjdns docs to discourage using onlynet option #35963

1. 
   naiyoma commented at 9:00 AM on August 13, 2026: contributor

   Currently, the number of CJDNS addresses is still very small and may not be sufficient to fill all outbound connection slots. When running with the -cjdnsonly and -cjdnsreachable options, ThreadOpenConnections() repeatedly calls Select(), which returns the same few addresses over and over. The connection attempts may fail, the addresses remain in AddrMan, and the loop continually restarts.

   The documentation does mention running CJDNS alongside other networks, but we should explicitly explain why using only CJDNS is discouraged, since running with these options alone is supported.

2. doc : update cjdns docs to discourage using onlynet option beefda21be
3. 
   DrahtBot commented at 9:00 AM on August 13, 2026: contributor

   <!--e57a25ab6845829454e8d69fc972939a-->

   The following sections might be updated with supplementary metadata relevant to reviewers and maintainers.

   <!--006a51241073e994b41acfe9ec718e94-->

   Code Coverage & Benchmarks

   For details see: https://corecheck.dev/bitcoin/bitcoin/pulls/35963.

   <!--021abf342d371248e50ceaed478a90ca-->

   Reviews

   See the guideline and AI policy for information on the review process.

   Type	Reviewers
   ACK	jonatack, hodlinator, achow101, brunoerg

   If your review is incorrectly listed, please copy-paste <code>&lt;!--meta-tag:bot-skip--&gt;</code> into the comment that the bot should ignore.

   <!--5faf32d7da4f0f540f40219e4f7537a3-->

4. DrahtBot added the label CI failed on Aug 13, 2026
5. DrahtBot removed the label CI failed on Aug 13, 2026
6. 
   jonatack commented at 7:02 PM on August 13, 2026: member

   ACK beefda21be3f7904f29bcc81d4cf3e05e8df41df

   Another section from doc/i2p.md that may optionally be worth adapting and adding here:

   Another consideration with `onlynet` is that the initial blocks download
   phase when syncing up a new node can be very slow. This phase can be sped up by
   using other networks, for instance `onlynet=onion`, at the same time.
   

7. in doc/cjdns.md:1 in beefda21be

   ---

   ---

   

   hodlinator commented at 8:39 AM on August 17, 2026:

   nit in commit message & PR title:

   If you touch again, could adjust title to be more uniform:

   -doc : update ...
   +doc: update ...
   

   Tools may otherwise not match correctly, see: https://github.com/maflcko/DrahtBot/blob/98c1b4e52e0870a3b800c4f5890819702aa11972/webhook_features/config.yml#L104

8. hodlinator approved
9. 
   hodlinator commented at 8:41 AM on August 17, 2026: contributor

   ACK beefda21be3f7904f29bcc81d4cf3e05e8df41df

10. DrahtBot requested review from jonatack on Aug 17, 2026
11. 
    brunoerg commented at 12:41 PM on August 17, 2026: contributor

    Concept ACK

12. 
    achow101 commented at 10:39 PM on August 17, 2026: member

    ACK beefda21be3f7904f29bcc81d4cf3e05e8df41df

13. DrahtBot requested review from brunoerg on Aug 17, 2026
14. 
    brunoerg commented at 11:43 PM on August 17, 2026: contributor

    ACK beefda21be3f7904f29bcc81d4cf3e05e8df41df

15. fanquake merged this on Aug 18, 2026
16. fanquake closed this on Aug 18, 2026

    ---

Review Requested
jonatack