0.4-NOTES.md

Release notes for firmament v0.4

Significant changes

• Support for Taints and Toleration policy.
• Please refer the k8s documentation here on Taints and Toleration support.
• Also the firmament/poseidon design documents for Taints and Toleration can be found here
• Support for Pod Affinity/Anti-Affinity symmetry policy.
• Bug fixes and minor performance improvements.

Required Actions

To enable the new CPU-MEM cost model --flow_scheduling_cost_model flag should be set to '10' like shown below

--flow_scheduling_cost_model=10

To enable the Pod Affinity/Anti-Affinity symmetry --pod_affinity_antiaffinity_symmetry flag should be set to 'true' in the firmament config file like show below

firmament_scheduler_cpu_mem.cfg=true

This fix is based above the CPU-MEM cost model. This feature currently are not supported in other cost model.

Highlighted changes

Taints and Toleration support and Pod Affinity/Anti-Affinity Symmetry policy.

Full change list

• Taints and Toleration feature along with simple solver implemtation for Pod Affinity/Anti-Affinity
• Pod Affinity/Anti-Affinity symmetry feature
• Fix for few crash cases
• Placing mutex lock for Schedule service function