More information about hung Jenkins builds

Stephan Bergmann sbergman at
Thu Sep 3 07:49:04 UTC 2020

On 30/06/2020 11:38, Stephan Bergmann wrote:
> On 19/06/2020 14:51, Stephan Bergmann wrote:
>> On 28/05/2020 22:19, Stephan Bergmann wrote:
>>> For now, I have updated 
>>> <> to use 
>>> the new kill-wrapper timeout feature instead of Jenkins' "Abort the 
>>> build if it's stuck" option.  (And am planning to roll it out to 
>>> other Linux Jenkins jobs that could benefit from it, once it has 
>>> proven sufficiently stable.)
>> I have rolled out the kill-wrapper and its timeout feature now also 
>> for 
>> <>, 
>> <>, and 
>> <>.
> Just to note down the semi-obvious somewhere:  One scenario that 
> kill-wrapper apparently doesn't prevent is leftover processes after 
> Jenkins "has lost the connection" (for whatever reason, maybe a bug in 
> Jenkins itself?).
> <> had 
> gone down with
> [...]
>> [build JUT] linguistic_unoapi
>> FATAL: command execution failed
>>     at 

That issue now hit again on tb79, where 
<> "lost 
the connection" and left behind zombies that then broke later builds. 
(And which I manually killed now.)

I don't know how such lost connection issues get fixed, do they 
magically self-heal within the Jenkins framework, or does it involve 
manual intervention?  If the latter, would it be possible to include a 
step that removes such leftover zombie processes?

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