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https://issues.apache.org/jira/browse/HBASE-4371?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13102360#comment-13102360
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Jonathan Hsieh commented on HBASE-4371:
---------------------------------------
I think something isn't correct in KeyValue.MetaComparator. Here's a test case
that passes that seems incorrect. Why are these keys equal?
public void testMetaComparatorTableOnlyOk() {
MetaComparator c = new KeyValue.MetaComparator();
long now = System.currentTimeMillis();
// A users can enter arbitrary values from shell when scanning meta.
KeyValue a = new KeyValue(Bytes.toBytes("table1"), now);
KeyValue b = new KeyValue(Bytes.toBytes("table2"), now);
// This is seems wrong.
assertTrue(c.compare(a, b) == 0);
}
> When scanning .META., STARTROW with only table name ignores table.
> -------------------------------------------------------------------
>
> Key: HBASE-4371
> URL: https://issues.apache.org/jira/browse/HBASE-4371
> Project: HBase
> Issue Type: Bug
> Reporter: Jonathan Hsieh
>
> When writing unit tests for HBASE-4325, I noticed this:
> create 'table0', 'f1','f2'
> create 'table1', 'f1','f2'
> create 'table2', 'f1','f2'
> scan '.META.', { STARTROW=> 'table2' }
> Which outputs table1 which is < table2.
> hbase(main):007:0> scan '.META.', { STARTROW => 'table2' }
> ROW COLUMN+CELL
>
>
>
> table0,,1315776873140.ddc11620ad6d62eb6840853ecca46f39.
> column=info:regioninfo, timestamp=1315776873202, value=REGION => {NAME =>
> 'table0,,1315776873140.ddc11620ad6d62eb6840853ecca46f39.', TableName =>
> 'table0', STARTKEY => '', END
> KEY => '',
> ENCODED => ddc11620ad6d62eb6840853ecca46f39,}
>
>
> table0,,1315776873140.ddc11620ad6d62eb6840853ecca46f39.
> column=info:server, timestamp=1315776873233, value=grimlock:44226
>
>
> table0,,1315776873140.ddc11620ad6d62eb6840853ecca46f39.
> column=info:serverstartcode, timestamp=1315776873233, value=1315776026457
>
>
> table1,,1315776052776.dfbfdd038b1e42d38eff46e8282a15e5.
> column=info:regioninfo, timestamp=1315776052829, value=REGION => {NAME =>
> 'table1,,1315776052776.dfbfdd038b1e42d38eff46e8282a15e5.', TableName =>
> 'table1', STARTKEY => '', END
> KEY => '',
> ENCODED => dfbfdd038b1e42d38eff46e8282a15e5,}
>
>
> table1,,1315776052776.dfbfdd038b1e42d38eff46e8282a15e5.
> column=info:server, timestamp=1315776052871, value=grimlock:44226
>
>
> table1,,1315776052776.dfbfdd038b1e42d38eff46e8282a15e5.
> column=info:serverstartcode, timestamp=1315776052871, value=1315776026457
>
>
> table2,,1315776057157.5c6df57acb426b02660315e97bff80ff.
> column=info:regioninfo, timestamp=1315776057207, value=REGION => {NAME =>
> 'table2,,1315776057157.5c6df57acb426b02660315e97bff80ff.', TableName =>
> 'table2', STARTKEY => '', END
> KEY => '',
> ENCODED => 5c6df57acb426b02660315e97bff80ff,}
>
>
> table2,,1315776057157.5c6df57acb426b02660315e97bff80ff.
> column=info:server, timestamp=1315776057232, value=grimlock:44226
>
>
> table2,,1315776057157.5c6df57acb426b02660315e97bff80ff.
> column=info:serverstartcode, timestamp=1315776057232, value=1315776026457
>
>
> 3 row(s) in 0.0370 seconds
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