Tracking Down Bugs in Latest ZeroMQ Code
This morning I was able to track down some problems I've been having with ZeroMQ on Ubuntu. Turns out, it was bugs in the latest code in ZeroMQ off the github master. They had made some changes in the code, not checked them into master, and while they thought the bugs were fixed, they really weren't. So I talked to Sustrik on IRC and he asked me to try a simple test - it was just the simple change on a few lines of code.
Turns out, that cleared up the exception I was getting, as I expected - based on looking at the change, but that didn't solve the problem of getting the messages. Seems there's more to it. WHen I told him of these results, he asked me to make up a little compatibility matrix for the different versions: 2.1.0 (ref)... 2.1.0 with my changes for RECOVERY_IVL (me), and the git master (master). Here's what I found:
| Sender | Recevier | Works? |
| 2.1.0 | 2.1.0 | Yes |
| me | me | Yes |
| master | master | No |
| me | 2.1.0 | Yes |
| me | master | No |
it sure seems like there's a problem in the latest code. Thankfully, the unix admins have built my drop of the code into Ubuntu packages, so we can continue with the project, but I'm going to have to be very careful when we move off this code as it's going to be possibly a significant change.
Just something to consider. I like helping out, and giving back.