[HBASE-10366] 0.94 filterRow() may be skipped in 0.96(or onwards) code

• Type: Bug
• Status: Closed
• Priority: Critical
• Resolution: Fixed
• Fix Version/s: 0.98.0, 0.96.2
• Component/s: Filters
• Hadoop Flags: Reviewed
• Release Note: Thanks for the reviews! I've integrated the v1 patch into trunk, 0.98 & 0.96 branches.
• Tags: Phoenix
• Assignee: Jeffrey Zhong
• Reporter: Jeffrey Zhong
• Created: 16/Jan/14 22:43
• Updated: 20/Nov/15 11:55
• Resolved: 19/Jan/14 18:57

Description

HBASE-6429 combines both filterRow & filterRow(List<KeyValue> kvs) functions in Filter.
While 0.94 code or older, it may not implement hasFilterRow as HBase-6429 expected because 0.94(old) hasFilterRow only returns true when filterRow(List<KeyValue> kvs) is overridden not the filterRow(). Therefore, the filterRow() will be skipped.

Since we don't ask 0.94 users to update their existing filter code, the issue will cause scan returns unexpected keyvalues and break the backward compatibility.