Gourab Taparia created HBASE-28447:
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Summary: New configuration to configure with hfile specific
blocksize
Key: HBASE-28447
URL: https://issues.apache.org/jira/browse/HBASE-28447
Project: HBase
Issue Type: Improvement
Reporter: Gourab Taparia
Right now there is no config attached to the HFile block size by which we can
override the default. The default is set to 64 KB in
HConstants.DEFAULT_BLOCKSIZE . We need a new config which can control this
value.
Since the BLOCKSIZE is tracked at the column family level - we will need to
respect the CFD value first. Also, configuration settings are also something
that can be set in schema, at the column or table level, and will override the
relevant values from the site file. Below is the precedence order we can use to
get the final blocksize value :
ColumnFamilyDescriptor.BLOCKSIZE > schema level site configuration overrides >
site configuration > HConstants.DEFAULT_BLOCKSIZE
PS: There is one related config “hbase.mapreduce.hfileoutputformat.blocksize”
however that is specific to map-reduce jobs.
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