e90e091b_Apache_Kafka__Description
[Property] log.index.size.max.bytes [Default] 10 * 1024 * 1024 [Description] 
The maximum size in bytes we allow for the offset index for each log segment. Note that we will always pre-allocate a sparse file with this much space and shrink it down when the log rolls. If the index fills up we will roll a new log segment even if we haven't reached the log.segment.bytes limit. This setting can be overridden on a per-topic basis (see the per-topic configuration section).
Apache Kafka
Description