The time increased due to the newly added dedicated resources feature. During regular VM deployment, all dedicated resources are put in avoid list so that they are not considered for deployment.
Now the way to compute the list of dedicated resources is not optimal and performance deteriorates in an environment having lot of pods, clusters and hosts as the logic is to query db. for each suc resource.
The fix is to optimize the logic not to loop through all resources but get the list of each resource type in a single query.
Changes:
- Locking the group and save reservation mechanism done by DPM
- Added admin operation to cleanup VM reservations
- DPM will also cleanup VM reservations on startup
using affinity group even if the zone is dedicated to an account. The check to make sure that
explicit resources are not picked up for non-explicit deployment was present only at the domain
level for zones. Added a check at account level too.
Issues:
In Implicit planner resource usage is fixed to "Dedicated". It should be Dedicated/Shared depending upon the Implict Planner strict/preferred modes and hosts availability.
Fixed:
Issue is fixed by determining the resource usage to be "Dedicated/Shared" depending upon the Implicit strict/preferred mode and the hosts availability for the planner.
Patch 2 for https://reviews.apache.org/r/11379/
Created for files server/src/com/cloud/deploy/DeploymentPlanningManagerImpl.java, server/test/com/cloud/vm/DeploymentPlanningManagerImplTest.java, server/test/org/apache/cloudstack/affinity/AffinityApiUnitTest.java
- Changes merged from planner_reserve branch
- Exposing deploymentplanner as an optional parameter while creating a service offering
- changes to DeploymentPlanningManagerImpl to make sure host reserve-release happens between conflicting planner usages.
Koushik Das
Saksham Srivastava
Prachi Damle
Min Chen
Rajesh Battala
Edison Su