Hi,

I noticed alot of Gantt chart issues but never one quite like this. The gantt charts work great with a small amount of tasks. However, for my project of 67 tasks I can't view the Gantt chart.

I'm running dotProject on fedora core 1 with kernel 2.4 with plenty of ram and hard disk space. Also the phpinfo page looks right. Can somebody help me or point me to some good places to look at the code?

Thanks


EDIT: I forgot to mention that even though I have debug set to true in config.php I am not getting any errors displayed in the error log.

I have the same problem too with a project with 69 task. If anyone has a solution please help.

One thing you might want to check is the maximum execution time allowed for a PHP program. This is in PHP.INI and is max_execution_time. By default it is set to something 30 seconds, which may be a little short for all of the graphics processing. The other item you might want to play with is the memory_limit.

A couple of observations. According to the release note of JpGraph, currently on version 1.16 (dotproject uses 1.1. from 2002) does JpGraph now supports caching (with timeout) of generated graphs to lessen burden of a HTTP server.
Could an upgrade of JpGraph sole the above problem.
We are currently evaluating dotproject and have typically 200-300 tasks in a project.

If you cannot generate the graph once, then caching it is unlikely to help, although in the longer term it is a good idea. Typically it will be a resource issue, we need to track down what it is first. Sure, upgrading JpGraph is a good idea, and will be scheduled in.