Question

Running the following commands in hbase shell, trying to get QualifierFilter working:

import org.apache.hadoop.hbase.filter.CompareFilter
import org.apache.hadoop.hbase.filter.SingleColumnValueFilter
import org.apache.hadoop.hbase.filter.SubstringComparator
import org.apache.hadoop.hbase.util.Bytes
import org.apache.hadoop.hbase.filter.QualifierFilter
import org.apache.hadoop.hbase.filter.BinaryComparator

Got the error below:

hbase(main):011:0>  scan 'test', { FILTER => QualifierFilter.new(CompareFilter.CompareOp.GREATER, 'dummy')}
NoMethodError: undefined method `CompareOp' for Java::OrgApacheHadoopHbaseFilter::CompareFilter:Class

Can somebody share an example how hbase QualifierFilter works in bhase shell.

Answer 1

The HBase console is JRuby-based, you must use :: instead of . for statics reference.

Try that command :

hbase(main):011:0>  scan 'test', { FILTER => QualifierFilter.new(CompareFilter::CompareOp::GREATER, 'dummy')}