I'm using the ec2-plugin to launch Windows nodes in EC2. The instances are launched correctly, and the slave.jar is started over WinRM once a WinRM connection was established.

Running a simple freestyle job containing a single batch step (echo TEST) works perfectly fine and finishes immediately.

Running a similar pipeline job (bat 'echo TEST') takes 22 minutes (!!!) to finish. Adding the same node to jenkins manually via JNLP allows this job to also finish immediately. I can consistently reproduce these behaviours.

Here's some log output from the durable step plugin and the winrm package of the ec2-plugin: https://gist.github.com/anonymous/074223af8b5942b0363f

There's more log information available, but it looks mostly the same: A lot of InterruptedExceptions all over the place.

As running the slave over JNLP instead of WinRM seems to work perfectly fine, I believe this to be some weird interaction between the WinRM connection and the Filesystem Monitors in the Durable Task plugin.