How does the Gerrit- trigger plugin in Jenkins works?

plugins jenkins gerrit

The gerrit trigger works like this:

It connects to the gerrit server using ssh and uses the gerrit stream-events command
It then watches this stream as the data comes in
It will try to match the events to triggers that have defined in your projects

Potential pit-falls:

Jenkins user has improper ssh credentials
Jenkins user does not have the stream-events rights

How to check:

Login as jenkins user
ssh -p 29418 jenkins@your.domain.com gerrit stream-events
Push a commit to the server and you should see things on your stream

Problems:

ssh connection failed? setup you ssh key pair
No streaming right? Go to the All-Projects->Access and under Global Capabilities add Stream Events to the Non-Interactive Users group