Hi Eran,

The error you get means you reached the maximum number of branches per transactions. Branches are created during parallel or serial forking and there are max 12 configured in OpenSIPS.

So, check your script, maybe you have a run-away forking creating more than 12 branches.

Regards,

Bogdan-Andrei Iancu

OpenSIPS Founder and Developer
  https://www.opensips-solutions.com
  https://www.siphub.com

On 08.05.2024 20:27, Eran Leshem wrote:
Hi,
After a few calls, I am getting in the log the following error message:
ERROR:core:append_branch: max nr of branches exceeded
ERROR:core:push_branch: failed to append a branch

What can I do to prevent this?

In opensips.cfg:
udp_workers=2
open_files_limit=600

In /etc/default/opensips:
S_MEMORY=3200
P_MEMORY=200

My machine:
- Linux Mint 21.3 which is based on Ubuntu 22.04 LTS (Jammy Jellyfish),
- 16 GB memory,
- OpenSIPS version 3.4

Thanks,
Eran L.

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