Issue with starting downstream jobs

[Zoe Slattery]

Hi

I have a problem with downstream jobs not starting (occasionally). I think it is possibly a configuration option that I have missed or something about Jenkins that I don't understand.

I have two jobs, A and B, I always want to start B after A has finished. I am using Jenkins version 1.599, both A and B are build flows (BuildFlow Plugin v0.17)

Here is an example:

Job A (end time)                       Job B (Start time)
17:43                                       17:44
17:27                                       missed
17:18                                       17:19

I have tried

(a) Starting B from A
(b) Having B start itself by waiting for A to finish
(c) As above, but using BuildResultTrigger plugin and polling once a minute.

But there is always an occasional missed job. What have I missed?

Zoe