HBase column families have a time-to-live (TTL) property which, by default, is set to FOREVER. If you wanted to delete the HBase cell values a week after being inserted, you could set the TTL to 604800 (which is the number of seconds in a week: 60 * 60 * 24 * 7).
Here's an example:
Create a table where the column family has a TTL of 10 seconds: hbase(main):001:0> create 'test', {'NAME' => 'cf1', 'TTL' => 10}
0 row(s) in 2.5940 seconds
Put a record into that table: hbase(main):002:0> put 'test', 'my-row-key', 'cf1:my-col', 'my-value'
0 row(s) in 0.1420 seconds If we scan the table right away, we can see the record: hbase(main):003:0> scan 'test'
ROW COLUMN+CELL
my-row-key column=cf1:my-col, timestamp=1481650256841, value=my-value
1 row(s) in 0.0260 seconds 10 seconds later, the record has disappeared: hbase(main):004:0> scan 'test'
ROW COLUMN+CELL
0 row(s) in 0.0130 seconds So, perhaps you could use TTL to manage your data retention.
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