Nginx Server...:[emerg]: zero size shared memory zone "uploads"

[linuxgeneral]

I just did an upgrade of the latest commit:
http://github.com/omega8cc/nginx-for-drupal/commit/af46822e8fe5d220219a3c629beb3bd8dd23a8d4

The webserver went down and restarting nginx gives this error:
Stopping Nginx Server...: failed!
Starting Nginx Server...:[emerg]: zero size shared memory zone "uploads"

Rebooting did not resolve the problem, I am restoring from a backup now. let me know if you need any log files from the failed image.

[linuxgeneral]

I found this related closed issue and I deleted 2 hostmaster servers created but not in use. Server is restored from a backup with the failed image mounted to mounted if you need additional info:

http://github.com/omega8cc/nginx-for-drupal/issues/closed/?authenticity_token=ad466404266c1e71e09e02f6fe6e010f8f16c268#issue/81

[omega8cc]

You are too fast probably. After the hostmaster upgrade you should wait a minute so it will have a time to copy all modified config files, since it is copied on server verify which happens always on upgrade. There is a change introduced, so upload progress is now in the main Nginx config file and not included.

[omega8cc]

When you tried to upgrade the Hostmaster did you notice any errors, like "UPGRADE INFO: ERROR: Something is wrong, trying to re-install Hostmaster.."?

[omega8cc]

At any rate, it was related to failed for some reason migration form conf.d to pre.d directory. To fix this you don't need to revert to backup, only run cd /var/aegir/config/server_master/nginx; cp -a pre.d conf.d and then use the latest version of Barracuda.

[linuxgeneral]

I did have that "Something is wrong, trying to re-install Hostmaster." error but that started a few upgrades ago and on the core hostmaster

[omega8cc]

I was able to reproduce it with some older install. We added now a more secure upgrade path from conf.d to pre.d. It helped in our tests.

[netivajak]

Not sure if I should had this here since I may have used a different version of the script, but I had a similar issue with A14.B.dev8 installing alpha14. I also did not have a pre.d folder created, but I don't know if that's relevant.

Adding

upload_progress uploads 1m;

to a new file, custom_nginx.conf in the /var/aegir/config/server_master/nginx/conf.d directory allows nginx to start and seems to work.

This is similar to http://groups.drupal.org/node/84074#comment-282954

Fresh install of Ubuntu 10.4 LTS on a new vps.

[omega8cc]

Don't use alpha14, it is already outdated here.