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{
  "apiKey": 102,
  "type": "data",
  "name": "DisklessFileCommittedRecord",
  // Version 0 is the initial version.
  "validVersions": "0",
  "flexibleVersions": "0+",
  "fields": [
    { "name": "ObjectKey", "type": "string", "versions": "0+",
      "about": "The object key identifying the file in object storage." },
    { "name": "ObjectFormat", "type": "int8", "versions": "0+",
      "about": "The format of the object (e.g. 1 = WRITE_AHEAD_MULTI_SEGMENT)." },
    { "name": "FileSize", "type": "int64", "versions": "0+",
      "about": "The total size of the file in bytes." },
    { "name": "UploaderBrokerId", "type": "int32", "versions": "0+", "entityType": "brokerId",
      "about": "The broker that uploaded the file." },
    { "name": "OwnerIds", "type": "[]int32", "versions": "0+", "entityType": "brokerId",
      "about": "The list of Diskless Coordinator IDs that share ownership of this file." },
    { "name": "BatchesTopics", "type": "[]DisklessCommittedBatchDisklessCommittedTopic", "versions": "0+",
      "about": "TheEach topic with accepted batches in this file.", "fields": [
      { "name": "MagicTopicId", "type": "int8uuid", "versions": "0+",
        "about": "The recordunique batchtopic magic byteID." },
      { "name": "TopicIdPartitions", "type": "uuid[]DisklessCommittedPartition", "versions": "0+",
        "about": "The topic ID of the partition this batch belongs to." },
Each partition with accepted batches for this topic.", "fields": [
        { "name": "PartitionIndex", "type": "int32", "versions": "0+",
          "about": "The partition index." },
        { "name": "Batches", "type": "[]DisklessCommittedBatch", "versions": "0+",
          "about": "The accepted batches for this partition.", "fields": [
          { "name": "PartitionIndexMagic", "type": "int32int8", "versions": "0+",
            "about": "The partition indexrecord this batch belongsmagic tobyte." },
          { "name": "ByteOffset", "type": "int32", "versions": "0+",
            "about": "The byte offset of this batch within the file." },
          { "name": "ByteSize", "type": "int32", "versions": "0+",
            "about": "The size of the batch in bytes." },
          { "name": "AssignedBaseOffset", "type": "int64", "versions": "0+",
            "about": "The base offset assigned by the coordinator." },
          { "name": "AssignedLastOffset", "type": "int64", "versions": "0+",
            "about": "The last offset assigned by the coordinator." },
          { "name": "LogAppendTimestamp", "type": "int64", "versions": "0+",
            "about": "The log append timestamp assigned by the coordinator." },
          { "name": "BatchMaxTimestamp", "type": "int64", "versions": "0+",
            "about": "The maximum timestamp in the batch." },
          { "name": "TimestampType", "type": "int8", "versions": "0+",
            "about": "The timestamp type (0 = CreateTime, 1 = LogAppendTime)." },
          { "name": "ProducerId", "type": "int64", "versions": "0+",
            "about": "The producer ID, or -1 if not set." },
          { "name": "ProducerEpoch", "type": "int16", "versions": "0+",
            "about": "The producer epoch, or -1 if not set." },
          { "name": "BaseSequence", "type": "int32", "versions": "0+",
            "about": "The base sequence number, or -1 if not set." },
          { "name": "LastSequence", "type": "int32", "versions": "0+",
            "about": "The last sequence number, or -1 if not set." }
        ]}
      ]}
    ]}
  ]
}