[HBASE-24613] Doesn't work SplitPolicy attributs for table

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 1.4.8
• Component/s: Region Assignment
• Assignee: Unassigned
• Reporter: Aleksandr
• Created: 22/Jun/20 15:08
• Updated: 22/Jun/20 15:08

Description

Doesn't work SplitPolicy settings at the table level. Regions are splits to very low size.

Table describe: 

 

test_split, {TABLE_ATTRIBUTES => {MAX_FILESIZE => '2147483648', METADATA => {'SPLIT_POLICY' => 'org.apache.hadoop.hbase.regionserver.ConstantSizeRegionSplitPolicy'}} COLUMN FAMILIES DESCRIPTION {NAME => 'data', BLOOMFILTER => 'ROW', VERSIONS => '1', IN_MEMORY => 'false', KEEP_DELETED_CELLS => 'FALSE', DATA_BLOCK_ENCODING => 'NONE', TTL => 'FOREVER', COMPRESSION => 'NONE', MIN_VERSIONS => '0', BLOCKCACHE => 'true', BLOCKSIZE => '65536', REPLICATION_SCOPE => '0'} {NAME => 'number', BLOOMFILTER => 'ROW', VERSIONS => '1', IN_MEMORY => 'false', KEEP_DELETED_CELLS => 'FALSE', DATA_BLOCK_ENCODING => 'NONE', TTL => 'FOREVER', COMPRESSION => 'NONE', MIN_VERSIONS => '0', BLOCKCACHE => 'true', BLOCKSIZE => '65536', REPLICATION_SCOPE => '0'} {NAME => 'uuid', BLOOMFILTER => 'ROW', VERSIONS => '1', IN_MEMORY => 'false', KEEP_DELETED_CELLS => 'FALSE', DATA_BLOCK_ENCODING => 'NONE', TTL => 'FOREVER', COMPRESSION => 'NONE', MIN_VERSIONS => '0', BLOCKCACHE => 'true', BLOCKSIZE => '65536', REPLICATION_SCOPE => '0'}

 

Global settings that affect split:

• Maximum Region File Size - 10GB
• Memstore Flush Size - 128MB
• hbase.regionserver.region.split.policy - org.apache.hadoop.hbase.regionserver.ConstantSizeRegionSplitPolicy 

As a result, regions are splits to  400-600MB, but we expecting should region size 2GB. 

Why it happens? This is a bug?