Created attachment 802156 [details] engine log of edit action Description of problem: When trying to configure cluster compatibility version from 3.2 to 3.3 while Host is assigned to cluster (in 'Up' or 'Maintanance' state) action fails on Internal Engine Error full message: Error while executing action Edit Cluster properties: Internal Engine Error Version-Release number of selected component (if applicable): is15 How reproducible: 100% Steps to Reproduce: 1. Add DC with 3.2 compatibility version 2. Add Cluster with 3.2 compatibility version 3. Add Host to cluster 4. Try editting cluster to 3.3 compatibility version Additional info: engine stops action on NullPointerException: UpdateVdsGroupCommand throw exception: java.lang.NullPointerException attaching engine.log of action
*** This bug has been marked as a duplicate of bug 1011435 ***