{
  "checks": {
    "checkpoint_advanced": true,
    "compatibility_probe_rejected_type_change": true,
    "connector_running_after_rejection": true,
    "consumer_uses_registry_avro": true,
    "flink_job_running_after_rejection": true,
    "global_compatibility_backward": true,
    "kafka_lag_zero": true,
    "key_subject_backward": true,
    "latest_schema_unchanged": true,
    "post_rejection_event_visible": true,
    "post_rejection_source_iceberg_diff_zero": true,
    "producer_uses_registry_avro": true,
    "registration_rejected_http_409": true,
    "subject_versions_unchanged": true,
    "value_subject_backward": true
  },
  "claim_boundary": "Schema Registry rejection and uninterrupted old-schema flow only; no broker-failure claim.",
  "command": "make broker-verify ARGS=\"--phase contracts --baseline-events 2 --seed 211\"",
  "consumer": {
    "deserializer_class": "com.p1.reliability.cdc.KafkaDebeziumAvroRecordDeserializationSchema",
    "job_class": "com.p1.reliability.cdc.KafkaToIcebergJob",
    "job_id": "7e1fed4876a2e69a8d6dec83f528ea63",
    "schema_registry_url": "http://schema-registry:8081",
    "wire_resolution_evidence": "The only configured Path B deserializer resolved Confluent-wire Avro records through the captured value subject; baseline and post-rejection rows both reconciled to Iceberg."
  },
  "contracts": {
    "consumer_projection_fixtures": [
      {
        "path": "contracts/avro/order-change-v1.avsc",
        "sha256": "86f8e48210663876aca293e776ce2c70bbeae3539eb88d363b0bd5499ebd1d15"
      },
      {
        "path": "contracts/avro/order-change-compatible-add-v2.avsc",
        "sha256": "c793e89d96e3ef5502c2e22444bae71edbaac63a30f79fc33b1005bdf533e2d8"
      },
      {
        "path": "contracts/avro/order-change-incompatible-remove-v2.avsc",
        "sha256": "9a4e947e63e1049e7d76dfad3c0ab54ca432321a9cda603180677e91eebcda04"
      },
      {
        "path": "contracts/avro/order-change-incompatible-type-v2.avsc",
        "sha256": "bc4be7475a9f69c7c8f68face7bb135d8b55e62b25b1c16a59816a156bb1633c"
      }
    ],
    "format": "AVRO",
    "global_compatibility": "BACKWARD",
    "key": {
      "compatibility": "BACKWARD",
      "id": 1,
      "schema": {
        "connect.name": "broker.cdc_lab.orders.Key",
        "fields": [
          {
            "name": "order_id",
            "type": "long"
          }
        ],
        "name": "Key",
        "namespace": "broker.cdc_lab.orders",
        "type": "record"
      },
      "schema_sha256": "0e563c8446032b80592e043f9b839bd3732778403f2f9ba3e5509fda51e0bec9",
      "schema_type": "AVRO",
      "subject": "broker.cdc_lab.orders-key",
      "version": 1
    },
    "value": {
      "compatibility": "BACKWARD",
      "id": 2,
      "schema": {
        "connect.name": "broker.cdc_lab.orders.Envelope",
        "connect.version": 2,
        "fields": [
          {
            "default": null,
            "name": "before",
            "type": [
              "null",
              {
                "connect.name": "broker.cdc_lab.orders.Value",
                "fields": [
                  {
                    "name": "order_id",
                    "type": "long"
                  },
                  {
                    "name": "business_key",
                    "type": "string"
                  },
                  {
                    "name": "event_id",
                    "type": "long"
                  },
                  {
                    "name": "customer_id",
                    "type": "long"
                  },
                  {
                    "name": "status",
                    "type": "string"
                  },
                  {
                    "name": "amount_cents",
                    "type": "long"
                  },
                  {
                    "name": "updated_at",
                    "type": {
                      "connect.name": "io.debezium.time.Timestamp",
                      "connect.version": 1,
                      "type": "long"
                    }
                  },
                  {
                    "name": "seed",
                    "type": "int"
                  }
                ],
                "name": "Value",
                "type": "record"
              }
            ]
          },
          {
            "default": null,
            "name": "after",
            "type": [
              "null",
              "Value"
            ]
          },
          {
            "name": "source",
            "type": {
              "connect.name": "io.debezium.connector.mysql.Source",
              "connect.version": 1,
              "fields": [
                {
                  "name": "version",
                  "type": "string"
                },
                {
                  "name": "connector",
                  "type": "string"
                },
                {
                  "name": "name",
                  "type": "string"
                },
                {
                  "name": "ts_ms",
                  "type": "long"
                },
                {
                  "default": "false",
                  "name": "snapshot",
                  "type": [
                    {
                      "connect.default": "false",
                      "connect.name": "io.debezium.data.Enum",
                      "connect.parameters": {
                        "allowed": "true,first,first_in_data_collection,last_in_data_collection,last,false,incremental"
                      },
                      "connect.version": 1,
                      "type": "string"
                    },
                    "null"
                  ]
                },
                {
                  "name": "db",
                  "type": "string"
                },
                {
                  "default": null,
                  "name": "sequence",
                  "type": [
                    "null",
                    "string"
                  ]
                },
                {
                  "default": null,
                  "name": "ts_us",
                  "type": [
                    "null",
                    "long"
                  ]
                },
                {
                  "default": null,
                  "name": "ts_ns",
                  "type": [
                    "null",
                    "long"
                  ]
                },
                {
                  "default": null,
                  "name": "table",
                  "type": [
                    "null",
                    "string"
                  ]
                },
                {
                  "name": "server_id",
                  "type": "long"
                },
                {
                  "default": null,
                  "name": "gtid",
                  "type": [
                    "null",
                    "string"
                  ]
                },
                {
                  "name": "file",
                  "type": "string"
                },
                {
                  "name": "pos",
                  "type": "long"
                },
                {
                  "name": "row",
                  "type": "int"
                },
                {
                  "default": null,
                  "name": "thread",
                  "type": [
                    "null",
                    "long"
                  ]
                },
                {
                  "default": null,
                  "name": "query",
                  "type": [
                    "null",
                    "string"
                  ]
                }
              ],
              "name": "Source",
              "namespace": "io.debezium.connector.mysql",
              "type": "record"
            }
          },
          {
            "default": null,
            "name": "transaction",
            "type": [
              "null",
              {
                "connect.name": "event.block",
                "connect.version": 1,
                "fields": [
                  {
                    "name": "id",
                    "type": "string"
                  },
                  {
                    "name": "total_order",
                    "type": "long"
                  },
                  {
                    "name": "data_collection_order",
                    "type": "long"
                  }
                ],
                "name": "block",
                "namespace": "event",
                "type": "record"
              }
            ]
          },
          {
            "name": "op",
            "type": "string"
          },
          {
            "default": null,
            "name": "ts_ms",
            "type": [
              "null",
              "long"
            ]
          },
          {
            "default": null,
            "name": "ts_us",
            "type": [
              "null",
              "long"
            ]
          },
          {
            "default": null,
            "name": "ts_ns",
            "type": [
              "null",
              "long"
            ]
          }
        ],
        "name": "Envelope",
        "namespace": "broker.cdc_lab.orders",
        "type": "record"
      },
      "schema_sha256": "e6635b92931f4b0c9c417436592b9e69608150a494d81ccafeaf22af3e30284d",
      "schema_type": "AVRO",
      "subject": "broker.cdc_lab.orders-value",
      "version": 1
    }
  },
  "environment": {
    "architecture": "x86_64",
    "cpu": {
      "logical_count": 8,
      "model": "AMD EPYC"
    },
    "docker_version": "29.7.2",
    "execution": "dedicated Docker-capable Linux VM; CPU-only; no GPU or co-tenant workloads",
    "hostname": "iZbp168wqbln65rhx2chs0Z",
    "kernel": "6.8.0-137-generic",
    "load_average_at_capture": [
      2.31005859375,
      1.46484375,
      1.2861328125
    ],
    "os": "Ubuntu 24.04.4 LTS",
    "ram_bytes": 32687382528
  },
  "finished_at": "2026-08-20T12:01:04Z",
  "flow_continuity": {
    "after_rejection": {
      "flink_checkpoint": {
        "external_path": "file:/opt/flink/checkpoints/7e1fed4876a2e69a8d6dec83f528ea63/chk-7",
        "id": 7,
        "status": "COMPLETED"
      },
      "iceberg_row_count": 3,
      "iceberg_snapshot_ids": {
        "orders_changelog": 586061360462331993,
        "orders_current": 2146546763942028331
      },
      "kafka_offsets": [
        {
          "current_offset": 1,
          "lag": 0,
          "log_end_offset": 1,
          "partition": 0
        },
        {
          "current_offset": 2,
          "lag": 0,
          "log_end_offset": 2,
          "partition": 1
        },
        {
          "current_offset": 0,
          "lag": 0,
          "log_end_offset": 0,
          "partition": 2
        }
      ],
      "orders_changelog_row_count": 3,
      "post_event_event_id": 19000211,
      "post_event_order_id": 9000211,
      "post_event_visible": true,
      "source_iceberg_diff": {
        "missing_from_actual": [],
        "unexpected_in_actual": []
      },
      "source_iceberg_diff_count": 0,
      "source_row_count": 3
    },
    "before_rejection": {
      "flink_checkpoint_id": 5,
      "iceberg_row_count": 2,
      "kafka_offsets": [
        {
          "current_offset": 1,
          "lag": 0,
          "log_end_offset": 1,
          "partition": 0
        },
        {
          "current_offset": 1,
          "lag": 0,
          "log_end_offset": 1,
          "partition": 1
        },
        {
          "current_offset": 0,
          "lag": 0,
          "log_end_offset": 0,
          "partition": 2
        }
      ],
      "source_iceberg_diff_count": 0,
      "source_row_count": 2
    }
  },
  "git_sha": "17efb81fbeaa",
  "incompatible_schema_attempt": {
    "candidate_schema_sha256": "2e4885c50aca4f57afac29724e980ef9986928c5cd8d0520a67520ab68a8fb9a",
    "compatibility_check": {
      "http_status": 200,
      "is_compatible": false,
      "messages": [
        "{errorType:'MISSING_UNION_BRANCH', description:'The new schema is missing a type inside a union field at path '/fields/0/type/1' in the old schema', additionalInfo:'reader union lacking writer type: RECORD'}",
        "{errorType:'MISSING_UNION_BRANCH', description:'The new schema is missing a type inside a union field at path '/fields/1/type/1' in the old schema', additionalInfo:'reader union lacking writer type: RECORD'}",
        "{oldSchemaVersion: 1}",
        "{oldSchema: '{\"type\":\"record\",\"name\":\"Envelope\",\"namespace\":\"broker.cdc_lab.orders\",\"fields\":[{\"name\":\"before\",\"type\":[\"null\",{\"type\":\"record\",\"name\":\"Value\",\"fields\":[{\"name\":\"order_id\",\"type\":\"long\"},{\"name\":\"business_key\",\"type\":\"string\"},{\"name\":\"event_id\",\"type\":\"long\"},{\"name\":\"customer_id\",\"type\":\"long\"},{\"name\":\"status\",\"type\":\"string\"},{\"name\":\"amount_cents\",\"type\":\"long\"},{\"name\":\"updated_at\",\"type\":{\"type\":\"long\",\"connect.version\":1,\"connect.name\":\"io.debezium.time.Timestamp\"}},{\"name\":\"seed\",\"type\":\"int\"}],\"connect.name\":\"broker.cdc_lab.orders.Value\"}],\"default\":null},{\"name\":\"after\",\"type\":[\"null\",\"Value\"],\"default\":null},{\"name\":\"source\",\"type\":{\"type\":\"record\",\"name\":\"Source\",\"namespace\":\"io.debezium.connector.mysql\",\"fields\":[{\"name\":\"version\",\"type\":\"string\"},{\"name\":\"connector\",\"type\":\"string\"},{\"name\":\"name\",\"type\":\"string\"},{\"name\":\"ts_ms\",\"type\":\"long\"},{\"name\":\"snapshot\",\"type\":[{\"type\":\"string\",\"connect.version\":1,\"connect.parameters\":{\"allowed\":\"true,first,first_in_data_collection,last_in_data_collection,last,false,incremental\"},\"connect.default\":\"false\",\"connect.name\":\"io.debezium.data.Enum\"},\"null\"],\"default\":\"false\"},{\"name\":\"db\",\"type\":\"string\"},{\"name\":\"sequence\",\"type\":[\"null\",\"string\"],\"default\":null},{\"name\":\"ts_us\",\"type\":[\"null\",\"long\"],\"default\":null},{\"name\":\"ts_ns\",\"type\":[\"null\",\"long\"],\"default\":null},{\"name\":\"table\",\"type\":[\"null\",\"string\"],\"default\":null},{\"name\":\"server_id\",\"type\":\"long\"},{\"name\":\"gtid\",\"type\":[\"null\",\"string\"],\"default\":null},{\"name\":\"file\",\"type\":\"string\"},{\"name\":\"pos\",\"type\":\"long\"},{\"name\":\"row\",\"type\":\"int\"},{\"name\":\"thread\",\"type\":[\"null\",\"long\"],\"default\":null},{\"name\":\"query\",\"type\":[\"null\",\"string\"],\"default\":null}],\"connect.version\":1,\"connect.name\":\"io.debezium.connector.mysql.Source\"}},{\"name\":\"transaction\",\"type\":[\"null\",{\"type\":\"record\",\"name\":\"block\",\"namespace\":\"event\",\"fields\":[{\"name\":\"id\",\"type\":\"string\"},{\"name\":\"total_order\",\"type\":\"long\"},{\"name\":\"data_collection_order\",\"type\":\"long\"}],\"connect.version\":1,\"connect.name\":\"event.block\"}],\"default\":null},{\"name\":\"op\",\"type\":\"string\"},{\"name\":\"ts_ms\",\"type\":[\"null\",\"long\"],\"default\":null},{\"name\":\"ts_us\",\"type\":[\"null\",\"long\"],\"default\":null},{\"name\":\"ts_ns\",\"type\":[\"null\",\"long\"],\"default\":null}],\"connect.version\":2,\"connect.name\":\"broker.cdc_lab.orders.Envelope\"}'}",
        "{validateFields: 'false', compatibility: 'BACKWARD'}"
      ]
    },
    "latest_schema_unchanged": true,
    "mutated_field_occurrences": 1,
    "mutation": "nested event_id field type long -> string",
    "registration": {
      "http_status": 409,
      "rejected": true,
      "response": {
        "error_code": 409,
        "message": "Schema being registered is incompatible with an earlier schema for subject \"broker.cdc_lab.orders-value\", details: [{errorType:'MISSING_UNION_BRANCH', description:'The new schema is missing a type inside a union field at path '/fields/0/type/1' in the old schema', additionalInfo:'reader union lacking writer type: RECORD'}, {errorType:'MISSING_UNION_BRANCH', description:'The new schema is missing a type inside a union field at path '/fields/1/type/1' in the old schema', additionalInfo:'reader union lacking writer type: RECORD'}, {oldSchemaVersion: 1}, {oldSchema: '{\"type\":\"record\",\"name\":\"Envelope\",\"namespace\":\"broker.cdc_lab.orders\",\"fields\":[{\"name\":\"before\",\"type\":[\"null\",{\"type\":\"record\",\"name\":\"Value\",\"fields\":[{\"name\":\"order_id\",\"type\":\"long\"},{\"name\":\"business_key\",\"type\":\"string\"},{\"name\":\"event_id\",\"type\":\"long\"},{\"name\":\"customer_id\",\"type\":\"long\"},{\"name\":\"status\",\"type\":\"string\"},{\"name\":\"amount_cents\",\"type\":\"long\"},{\"name\":\"updated_at\",\"type\":{\"type\":\"long\",\"connect.version\":1,\"connect.name\":\"io.debezium.time.Timestamp\"}},{\"name\":\"seed\",\"type\":\"int\"}],\"connect.name\":\"broker.cdc_lab.orders.Value\"}],\"default\":null},{\"name\":\"after\",\"type\":[\"null\",\"Value\"],\"default\":null},{\"name\":\"source\",\"type\":{\"type\":\"record\",\"name\":\"Source\",\"namespace\":\"io.debezium.connector.mysql\",\"fields\":[{\"name\":\"version\",\"type\":\"string\"},{\"name\":\"connector\",\"type\":\"string\"},{\"name\":\"name\",\"type\":\"string\"},{\"name\":\"ts_ms\",\"type\":\"long\"},{\"name\":\"snapshot\",\"type\":[{\"type\":\"string\",\"connect.version\":1,\"connect.parameters\":{\"allowed\":\"true,first,first_in_data_collection,last_in_data_collection,last,false,incremental\"},\"connect.default\":\"false\",\"connect.name\":\"io.debezium.data.Enum\"},\"null\"],\"default\":\"false\"},{\"name\":\"db\",\"type\":\"string\"},{\"name\":\"sequence\",\"type\":[\"null\",\"string\"],\"default\":null},{\"name\":\"ts_us\",\"type\":[\"null\",\"long\"],\"default\":null},{\"name\":\"ts_ns\",\"type\":[\"null\",\"long\"],\"default\":null},{\"name\":\"table\",\"type\":[\"null\",\"string\"],\"default\":null},{\"name\":\"server_id\",\"type\":\"long\"},{\"name\":\"gtid\",\"type\":[\"null\",\"string\"],\"default\":null},{\"name\":\"file\",\"type\":\"string\"},{\"name\":\"pos\",\"type\":\"long\"},{\"name\":\"row\",\"type\":\"int\"},{\"name\":\"thread\",\"type\":[\"null\",\"long\"],\"default\":null},{\"name\":\"query\",\"type\":[\"null\",\"string\"],\"default\":null}],\"connect.version\":1,\"connect.name\":\"io.debezium.connector.mysql.Source\"}},{\"name\":\"transaction\",\"type\":[\"null\",{\"type\":\"record\",\"name\":\"block\",\"namespace\":\"event\",\"fields\":[{\"name\":\"id\",\"type\":\"string\"},{\"name\":\"total_order\",\"type\":\"long\"},{\"name\":\"data_collection_order\",\"type\":\"long\"}],\"connect.version\":1,\"connect.name\":\"event.block\"}],\"default\":null},{\"name\":\"op\",\"type\":\"string\"},{\"name\":\"ts_ms\",\"type\":[\"null\",\"long\"],\"default\":null},{\"name\":\"ts_us\",\"type\":[\"null\",\"long\"],\"default\":null},{\"name\":\"ts_ns\",\"type\":[\"null\",\"long\"],\"default\":null}],\"connect.version\":2,\"connect.name\":\"broker.cdc_lab.orders.Envelope\"}'}, {validateFields: 'false', compatibility: 'BACKWARD'}]"
      }
    },
    "subject": "broker.cdc_lab.orders-value",
    "versions_after_rejection": [
      1
    ],
    "versions_before": [
      1
    ],
    "versions_final": [
      1
    ]
  },
  "logs": "showcase/logs/phase-b2-broker-verify-20260820T115942Z.log",
  "phase": "B2",
  "producer": {
    "connector": "p1-orders-connector",
    "converter_config": {
      "key.converter": "io.confluent.connect.avro.AvroConverter",
      "key.converter.enhanced.avro.schema.support": "true",
      "key.converter.schema.registry.url": "http://schema-registry:8081",
      "value.converter": "io.confluent.connect.avro.AvroConverter",
      "value.converter.enhanced.avro.schema.support": "true",
      "value.converter.schema.registry.url": "http://schema-registry:8081"
    },
    "runtime": "single-worker Debezium Connect",
    "state_after_rejection": {
      "connector": {
        "state": "RUNNING",
        "worker_id": "172.18.0.7:8083"
      },
      "name": "p1-orders-connector",
      "tasks": [
        {
          "id": 0,
          "state": "RUNNING",
          "worker_id": "172.18.0.7:8083"
        }
      ],
      "type": "source"
    },
    "state_before": {
      "connector": {
        "state": "RUNNING",
        "worker_id": "172.18.0.7:8083"
      },
      "name": "p1-orders-connector",
      "tasks": [
        {
          "id": 0,
          "state": "RUNNING",
          "worker_id": "172.18.0.7:8083"
        }
      ],
      "type": "source"
    },
    "state_final": {
      "connector": {
        "state": "RUNNING",
        "worker_id": "172.18.0.7:8083"
      },
      "name": "p1-orders-connector",
      "tasks": [
        {
          "id": 0,
          "state": "RUNNING",
          "worker_id": "172.18.0.7:8083"
        }
      ],
      "type": "source"
    }
  },
  "run_id": "20260820T120104Z-7e40acd6",
  "scenario": {
    "baseline_events": 2,
    "checkpoint_interval_ms": 5000,
    "consumer_group": "p1-broker-parity-b1",
    "initial_topic_end_offsets": [
      {
        "log_end_offset": 0,
        "partition": 0
      },
      {
        "log_end_offset": 0,
        "partition": 1
      },
      {
        "log_end_offset": 0,
        "partition": 2
      }
    ],
    "post_rejection_events": 1,
    "seed": 211,
    "topic": "broker.cdc_lab.orders",
    "topic_partitions": 3
  },
  "stack_versions": {
    "broker_serialization": "Confluent Avro with Schema Registry",
    "confluent_avro_converter": "7.9.8",
    "debezium_connect": "3.2.4.Final",
    "flink": "1.20.4",
    "flink_cdc": "3.6.0",
    "flink_kafka_connector": "3.4.0-1.20",
    "iceberg": "1.10.x",
    "jackson": "2.18.6 (BOM)",
    "java": "11",
    "java_avro": "1.12.0 (Flink job)",
    "kafka": "3.9.2 (single-node KRaft)",
    "maven": "3.9",
    "minio": "RELEASE.2025-04-22T22-12-26Z",
    "mysql": "8.0.36",
    "node": "20",
    "python": "3.11",
    "python_avro": "1.12.1",
    "schema_registry": "Confluent 7.9.8",
    "starrocks": "3.3.x (M3+)"
  },
  "started_at": "2026-08-20T11:59:57Z",
  "summary": {
    "incompatible_schema_rejected": true,
    "old_schema_pipeline_continued": true,
    "passed": true
  }
}