Variable RECORD_BATCH_METADATA_SIZEConst

Size of fixed fields after batchLength: partitionLeaderEpoch(4) + magic(1) + crc(4) + attributes(2) + lastOffsetDelta(4) + baseTimestamp(8) + maxTimestamp(8) + producerId(8) + producerEpoch(2) + baseSequence(4) + recordsCount(4).