Hello Ori Bandel,
Do you mean sudden dip in the "Keep alive" metrics? The "Keep alive" metric in Azure Data Explorer is a key indicator of cluster health, and a dip in this metric suggests a temporary issue with the cluster. It should ideally remain close to 1 for a healthy cluster
Can you check the below?
- Use the
.show diagnostics
command to check if the cluster is healthy and identify any issues. - Monitor the "Keep Alive" metric in the Azure portal, which should be close to 1 for a healthy cluster.
- Review the resource and ingestion metrics listed in cluster metrics and review the recommendations in the metric description column.
Reference document:
https://learn.microsoft.com/en-us/azure/data-explorer/check-cluster-health
I hope this helps.