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Posted to dev@hbase.apache.org by "ramkrishna.s.vasudevan (JIRA)" <ji...@apache.org> on 2014/03/14 11:29:47 UTC
[jira] [Created] (HBASE-10749) CellComparator.compareStatic()
compares type wrongly
ramkrishna.s.vasudevan created HBASE-10749:
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Summary: CellComparator.compareStatic() compares type wrongly
Key: HBASE-10749
URL: https://issues.apache.org/jira/browse/HBASE-10749
Project: HBase
Issue Type: Bug
Affects Versions: 0.96.1.1, 0.98.1, 0.99.0
Reporter: ramkrishna.s.vasudevan
Assignee: ramkrishna.s.vasudevan
Priority: Critical
Fix For: 0.98.1, 0.99.0
CellComparator.compareStatic(Cell a, Cell b) compares type wrongly.
{code}
//type
c = (0xff & a.getTypeByte()) - (0xff & b.getTypeByte());
if (c != 0) return c;
{code}
In the normal case it should be the other way
{code}
// Compare types. Let the delete types sort ahead of puts; i.e. types
// of higher numbers sort before those of lesser numbers. Maximum (255)
// appears ahead of everything, and minimum (0) appears after
// everything.
return (0xff & rtype) - (0xff & ltype);
{code}
Found this issue while replacing KVComparator to use CellComparator.
[~mcorgan]
Could you confirm this once? Currently PrefixTree code path uses this compareStatic method.
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