What does RegionSplit mean in HBase?

8 months ago

Noah Thompson

2 minutes

In HBase, a RegionSplit refers to a logical division unit of an HBase table when stored in a distributed manner on HDFS, with each RegionSplit corresponding to an HFile on HDFS. as a table’s data volume grows, the system will partition the data into multiple RegionSplits based on predefined rules to enable distributed storage and concurrent access. The division of RegionSplits is primarily based on the sorting order of the RowKey, with adjacent RowKeys being placed in the same RegionSplit to enhance read and write efficiency. Each RegionSplit is managed by a Region Server, which handles read and write requests for the data within that RegionSplit. Through the partitioning of RegionSplits, HBase can achieve horizontal scaling and parallel processing, ultimately improving system performance and capacity.