Scan HTable rows for specific column value using HBase shell

Question

I want to scan rows in a HTable from hbase shell where a column family (i.e., Tweet) has a particular value (i.e., user_id).

Now I want to find all

Answer 1

Nishu, here is solution I periodically use. It is actually much more powerful than you need right now but I think you will use it's power some day. Yes, it is for HBase shell.

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

scan 'yourTable', {LIMIT => 10, FILTER => SingleColumnValueFilter.new(Bytes.toBytes('family'), Bytes.toBytes('field'), CompareFilter::CompareOp.valueOf('EQUAL'), Bytes.toBytes('AAA')), COLUMNS => 'family:field' }

Only family:field column is returned with filter applied. This filter could be improved to perform more complicated comparisons.

Here are also hints for you that I consider most useful:

• http://hadoop-hbase.blogspot.com/2012/01/hbase-intra-row-scanning.html - Intra-row scanning explanation (Java API).
• https://hbase.apache.org/devapidocs/org/apache/hadoop/hbase/filter/FilterBase.html - JavaDoc for FilterBase class with links to descendants which actually can be used the same style. OK, shell syntax will be slightly different but having example above you can use this.