Tag: Replication
Replication failures, lag, or divergence in stateful systems.
ID | Title | Description | Category | Technology | Tags |
---|---|---|---|---|---|
CRE-2025-0020 High Impact: 10/10 Mitigation: 6/10 | Self-hosted PostgreSQL HA: WAL Streaming & HA Controller Crisis (Replication Slot Loss, Disk Full, Etcd Quorum Failure) | Detects high-severity failures in self-hosted PostgreSQL high-availability clusters managed by Patroni, Zalando, or similar HA controllers.This rule targets catastrophic conditions that break replication or cluster consensus:
| PostgreSQL High Availability | postgresql | High AvailabilityPatroniZalandoEtcdReplicationWALStorageQuorumCrashData LossTimeout |
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, causingpartition leadership changes and In-Sync Replica (ISR) shrinkage across multiple topics. | Message Queue Problems | kafka | KafkaReplicationData LossHigh AvailabilityBroker FailureCluster Degradation |