Have you looked at hbase-examples/src/main/java/org/apache/hadoop/hbase/coprocessor/example/BulkDeleteEndpoint.java to see if it fits your need ?
Cheers On Wed, Dec 24, 2014 at 1:34 PM, Devaraja Swami <devarajasw...@gmail.com> wrote: > Are there any plans for including a Filter for Delete? > Currently, the only way seems to be via checkAndDelete in HTable/Table. > This is helpful but does not cover all use cases. > > For e.g., I use column qualifier prefixes as a sort of poor man's 2rd level > of indexing (i.e, 3 levels of indexing comprising row key --> column > qualifier prefix --> column qualifier suffix). This works well for Get and > Scan, since I can use a prefix column qualifier filter for the 2nd indexing > level. > However, I am not able to specify that an entire set of column qualifiers > sharing the same prefix should be deleted, without doing a Get first to > identify all the full column qualifier values with the same prefix, and > then adding those qualifiers to the Delete. This is obviously highly > inefficient. > > checkAndDelete doesn't help here since it does not support prefix tests. > Moreover, I cannot just add a new column family for every unique column > qualifier prefix I need in my data model. In general, using just one column > family per table seems to be most efficient. > > I can think of other use cases where one would need to delete a lot of > columns that match one of the available HBase filters, but whose exact > column qualifier values are not known at deletion time at the client. > > All these uses cases can be taken care of by allowing Delete to support a > setFilter method, exactly as in the case of Get and Scan. >
