Peter Bacsko created YUNIKORN-3131:
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Summary: Improve DaemonSet preemption diagnostic messages
Key: YUNIKORN-3131
URL: https://issues.apache.org/jira/browse/YUNIKORN-3131
Project: Apache YuniKorn
Issue Type: Improvement
Components: core - scheduler
Reporter: Peter Bacsko
Assignee: Peter Bacsko
When the daemonset preemptor cannot find a victim pod, this is only visible in
the state dump.
To enhance supportability, we can:
# Generate a message just like we removed in YUNIKORN-2980, but limit the
amount of message that goes to the console with a rate limited logger (also
print out how many pods are part of a daemon set and how many have higher
priority)
# Send a K8s event to the daemon set pod that preemption does not help.
When the preemption takes place, it makes sense to send a K8s event to the
victim pod. For regular preemption, we already do this (see YUNIKORN-2982).
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