One builder is distconnetcted when building

[Mike McLean]

On 03/02/2010 12:21 AM, lixiao at nudt.edu.cn wrote:
> One builder is distconnetcted when building,then our packages in this builder are
> missing.What methods can koji do to deal with it?Can I do someting to move these
> packages to another builder?Thanks.

Your question is a bit unclear. In the future please help us help you by 
providing more detail and background.

I'm guessing that during a build in your koji system, one of your 
builders was reset or went offline for some reason. I assume that by 
"packages in this builder are missing" you mean that one of the 
buildArch subtasks is stalled out in an incomplete state.

All the advice that follows is based on this reading of your question. 
If I have misinterpreted, then please explain your question in more detail.

So....

First of all you'll want to deal with that stalled builder. If the task 
has been stalled for long time, then you may need to restart kojid on 
that host. When the kojid task restarts, it should free all the open 
tasks for that host which should allow other builders (or itself) to 
pick them up again.

Should there be any issues restarting the builder, you can just free the 
stalled subtask manually. You can use the 'koji free-task' command. Note 
the terminology: there is no "package" moving to another builder, it is 
a task that is moving.

In my experience stalled tasks happen for one of two reasons:
1. a stall within the build itself (typically infinite loop or deadlock)
2. a dropped packet on the network

Problem 1 is outside the scope of Koji. Though Koji does configure mock 
to time out after 24hrs.
Problem 2 is ultimately a network problem. While Koji tries to be 
tolerant of network errors, there are certain scenarios that it can't do 
much about.