331587 - Dependency Graph for Bug 330700 Crashes Bugzilla

Status: RESOLVED DUPLICATE of bug 102622

(Bugzilla :: Bugzilla-General, defect)

Description

[Mark Bickford]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.7.12) Gecko/20050915 Firefox/1.0.7
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.7.12) Gecko/20050915 Firefox/1.0.7

Bug 330700 (Bugzilla 3.0 Roadmap) has an admittedly complex set of dependencies.  When clicking on the "View Dependency Graph" link, the app spins for several minutes and then crashes with an HTTP 500 Internal Server Error.

Reproducible: Always

Steps to Reproduce:
1. Go to bug 330700 at bugzilla.mozilla.org
2. Click on "View Dependency Chart"
3. Wait for Server Error 500 to eventually appear

Actual Results:  
Throbber spun for several minutes, and then the page crashed.

Expected Results:  
Dependency chart should appear, or else a screen (in a short time, not 5+ minutes) with a notification that the graph would not be able to be presented.

Crash happens in showdependencygraph.cgi.  I'm marking this as Normal rather than Critical since the depth of the dependency tree for this bug may be unusual.

Comment 1

[Max Kanat-Alexander]

I think this may be a bmo-specific problem. I've seen dependency graphs fail somewhat often on bmo. Either that or it's some bug that bmo exposes by being a large installation.

Comment 2

[Dave Miller [:justdave]]

it's the latter.  People have a tendency to create lots of (meaningless?) metabugs, and it causes the dependencygraphs to get downright huge.

The "crash" is because we have a cron job that kills off dot processes that last more than 6 minutes (because the server will die if we don't).

Comment 3

[Frédéric Buclin]

The problem we have here is what myk describes in bug 102622 comment 0.

*** This bug has been marked as a duplicate of 102622 ***