e90e091b_Apache_Kafka__Description
[Property] offsets.load.buffer.size [Default] 5242880 [Description] 
An offset load occurs when a broker becomes the offset manager for a set of consumer groups (i.e., when it becomes a leader for an offsets topic partition). This setting corresponds to the batch size (in bytes) to use when reading from the offsets segments when loading offsets into the offset manager's cache.
Apache Kafka
Description