Hi All,

We had an issue here that I would like to mention. I did not have time to 
sort out the exact details, so I will just have some vague info and 
suspicion. Maybe it rings a bell for someone to act on it. 

   - The first thing we noticed was that our main build was not producing 
   any deliverables anymore, even on green builds.
   - Investigation showed that all the post build actions had vanished...
   - I checked the actual config.xml file on the disk: it contained the 
   post build actions as expected, no problem
   - huh, so jenkins did not read the config correctly?
   - restart jenkins.... still no post build actions in the web interface
   - I dug out that same config from backups over the past few days
   - I noticed it had exploded from 11k to 324k a few days back
   - a quick diff showed that the hue-light plugin had dumped a shedload of 
   xml in my config file
   - huh, more then 300k of config xml to just turn on a light?!?
   - one of my colleagues had been playing around with some hue lights for 
   some weeks but that seemed to work correctly
   - and the xml config explosion was only a few days back
   - I checked the config history from the backup, the hue plugin section 
   in the config was first a modest 9 lines and then suddenly exploded to a 
   whopping 5000 lines
   - a massive "<lightController>" entry was added to the config of the hue 
   plugin.
   - as far as we know there was no manual action at the time of the 
   confg.xml explosion
   - what else could re-write the config.xml file?

The result was that jenkins got lost in the massive xml (or there was an 
xml error in there, I did not check all 5000 lines!) and jenkins was 
missing all of our post actions.

We needed to get the system in good order again quickly, so I restored a 
config.xml from a recent backup and restarted jenkins. The post actions 
have returned and life is good again (without the hue light feedback of 
course :-(....).

Any bells ringing for anyone?

We will probably try the hue plugin once again, carefully... 
I will keep this list posted with further experiences.

Cheers,
Tom

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