Vladimir Rodionov created HBASE-14782: -----------------------------------------
Summary: FuzzyRowFilter skips valid rows Key: HBASE-14782 URL: https://issues.apache.org/jira/browse/HBASE-14782 Project: HBase Issue Type: Bug Affects Versions: 2.0.0 Reporter: Vladimir Rodionov Assignee: Vladimir Rodionov The issue may affect not only master branch, but previous releases as well. This is from one of our customers: {quote} We are experiencing a problem with the FuzzyRowFilter for HBase scan. We think that it is a bug. Fuzzy filter should pick a row if it matches filter criteria irrespective of other rows present in table but filter is dropping a row depending on some other row present in table. Details/Step to reproduce/Sample outputs below: Missing row key: \x9C\x00\x044\x00\x00\x00\x00 Causing row key: \x9C\x00\x03\xE9e\xBB{X\x1Fwts\x1F\x15vRX Prerequisites 1. Create a test table. HBase shell command -- create 'fuzzytest','d' 2. Insert some test data. HBase shell commands: • put 'fuzzytest',"\x9C\x00\x044\x00\x00\x00\x00",'d:a','junk' • put 'fuzzytest',"\x9C\x00\x044\x01\x00\x00\x00",'d:a','junk' • put 'fuzzytest',"\x9C\x00\x044\x00\x01\x00\x00",'d:a','junk' • put 'fuzzytest',"\x9C\x00\x044\x00\x00\x01\x00",'d:a','junk' • put 'fuzzytest',"\x9C\x00\x044\x00\x01\x00\x01",'d:a','junk' • put 'fuzzytest',"\x9B\x00\x044e\xBB\xB2\xBB",'d:a','junk' • put 'fuzzytest',"\x9D\x00\x044e\xBB\xB2\xBB",'d:a','junk' Now when you run the code, you will find \x9C\x00\x044\x00\x00\x00\x00 in output because it matches filter criteria. (Refer how to run code below) Insert the row key causing bug: HBase shell command: put 'fuzzytest',"\x9C\x00\x03\xE9e\xBB{X\x1Fwts\x1F\x15vRX",'d:a','junk' Now when you run the code, you will not find \x9C\x00\x044\x00\x00\x00\x00 in output even though it still matches filter criteria. {quote} Verified the issue on master. -- This message was sent by Atlassian JIRA (v6.3.4#6332)