Post upgrade the Service logs UI was not showing any logs

Logstash pipeline responsible for ingesting logs from all services, ran into exceptions due to some out-of-context (older timestamp) log entries from some of the services.

Solution

1. Delete the logstash indices, using command:

   kubectl exec -it elasticsearch-master-0 -n tcsa-system -c opensearch -- curl -XDELETE -ku admin:admin https://elasticsearch:9200/logstash-.*

2. Restart logstash pods:

   kubectl delete pod -n tcsa-system logstash-0 logstash-1