-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Bjorn Tillenius wrote: > My question would be, why do you need to run Jobs on demand; what's the > end-user visible change here?
The end-user visible change is that there is no lag between them requesting an operation and the operation starting. For a merge proposal, the ideal is that when they propose the merge, a diff appears on the next page immediately, despite the fact that the diff is generated on a separate machine. We can use AJAX to get close to that. For upgrading a branch, the ideal is that it starts upgrading immediately. > When we know that, is there maybe some > other change we can do, instead of bringing in yet another moving part > to Launchpad? I don't think so. It's no coincidence that Muharem presented a Job system as a use case at the Epic. Polling will never be as responsive or efficient as messaging. > For example, how often do you poll today? Can we increase the frequency, > so that it is like on-demand. I believe we usually poll every 5 minutes. With bzr send handling, we need two scripts to run, so the time is cumulative. For update_preview_diff, we're polling every minute. I think that polling more frequently would not be a responsible use of resources. These scripts take about 10 seconds to start up, so 10 seconds is the lower bound for polling. > Also, I don't know that much how RabbitMQ works. If you have that, how > will RabbitMQ start the right Job? There are a number of options: - - We can specify the job type in the message - - We can have a separate channel for each script - - The job system can be updated so that it can run any Job. Aaron -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iEYEARECAAYFAkrOV8wACgkQ0F+nu1YWqI27mgCfZC96cXPSb4nTRvh06XkY1y39 UM4AoIdYoHJIzK/2VxvuUbC/IRWGXPHH =lwS7 -----END PGP SIGNATURE----- _______________________________________________ Mailing list: https://launchpad.net/~launchpad-dev Post to : [email protected] Unsubscribe : https://launchpad.net/~launchpad-dev More help : https://help.launchpad.net/ListHelp
