Tag: Cluster Degradation

Problems related to cluster availability

ID	Title	Description	Category	Technology	Tags
CRE-2025-0070 Critical Impact: 10/10 Mitigation: 6/10	Kafka Under-Replicated Partitions Crisis	Critical Kafka cluster degradation detected: Multiple partitions have lost replicas due to broker failure, resulting in an under-replicated state. This pattern indicates a broker has become unavailable, causing partition leadership changes and In-Sync Replica (ISR) shrinkage across multiple topics.	Message Queue Problems	kafka	Kafka Replication Data Loss High Availability Broker Failure Cluster Degradation
CRE-2025-0080 High Impact: 0/10 Mitigation: 9/10	Redpanda High Severity Issues	Detects when Redpanda hits any of these on startup or early runtime: 1. Fails to create its crash_reports directory (POSIX error 13). 2. Heartbeat or node-status RPC failures indicating a broker is down. 3. Raft group failure. 4. Data center failure	Data Streaming Platforms	redpanda	Redpanda Startup Failure Permission Failure RPC Raft Node Down Cluster Degradation Data Availability Database Corruption