{"id":"logging-architecture-three-tier-evolution","text":"OpenShift logging follows a three-tier evolutionary architecture: three log categories (infrastructure/application/audit) flow through Vector (replacing Fluentd) into Loki (replacing Elasticsearch in 6.x), with the 5.x→6.x transition requiring manual migration — not automatic upgrade.","truth_value":"IN","source":"","source_url":"","source_hash":"","justifications":[{"type":"SL","antecedents":["logging-three-log-categories","vector-default-log-collector","logging-6x-uses-loki-not-elasticsearch","logging-5-to-6-upgrade-not-automatic"],"outlist":[],"label":"Groups four base logging beliefs into a coherent architectural evolution model"}],"dependents":[],"metadata":{},"explanation":{"steps":[{"node":"logging-architecture-three-tier-evolution","truth_value":"IN","reason":"SL justification valid","antecedents":["logging-three-log-categories","vector-default-log-collector","logging-6x-uses-loki-not-elasticsearch","logging-5-to-6-upgrade-not-automatic"],"label":"Groups four base logging beliefs into a coherent architectural evolution model"},{"node":"logging-three-log-categories","truth_value":"IN","reason":"premise"},{"node":"vector-default-log-collector","truth_value":"IN","reason":"premise"},{"node":"logging-6x-uses-loki-not-elasticsearch","truth_value":"IN","reason":"premise"},{"node":"logging-5-to-6-upgrade-not-automatic","truth_value":"IN","reason":"premise"}]}}