@YogeshW1

checklist for Pega 24.2.2 after externalizing Kafka and Elasticsearch: 1) connectivity and health: Pega nodes see brokers and SRS/ES, TLS/SASL certs and creds load, startup shows no stream or SRS errors. 2) security: Kafka ACLs per topic and consumer-group, ES auth/roles, IP allowlists, cert rotation drill. 3) data flow: run a sample data flow and real case traffic; verify producers publish, consumers process, lag stays near zero, back-pressure doesn’t spike. 4) topics/config: required Pega topics exist with correct partitions/replication, retention/compaction set, dead-letter topics wired and populated on failure. 5) failure drills: bounce a broker and an ES node, observe client retries, no message loss, auto-rebalance stable. 6) search/indexing: full and incremental reindex; validate case, attachment, and report search results, analyzers/synonyms, and highlighting; check index shard/replica counts. 7) performance: load test; watch CPU/memory, GC, network, Kafka throughput/latency, consumer lag, ES indexing/search latency, slow logs. 8) observability: dashboards/alerts for broker health, topic lag, SRS index health, disk usage, ILM rollover, snapshot/backup jobs. 9) ops hygiene: backup/restore of ES indices and Kafka configs, DR/restore runbook, rolling restart of Pega pods with no downtime, and config-as-code committed for all endpoints and creds.