chunhui shen created HBASE-7887:
-----------------------------------
Summary: Support configuring KeyValue Comparator as table
Key: HBASE-7887
URL: https://issues.apache.org/jira/browse/HBASE-7887
Project: HBase
Issue Type: New Feature
Components: regionserver
Affects Versions: 0.96.0
Reporter: chunhui shen
Assignee: chunhui shen
Fix For: 0.96.0
Now, KeyValue Comparator is static by code in HRegionInfo
{code}
public KVComparator getComparator() {
return isRootRegion()? KeyValue.ROOT_COMPARATOR: isMetaRegion()?
KeyValue.META_COMPARATOR: KeyValue.COMPARATOR;
}
{code}
In some user cases, we need a personalized KeyValue Comparator.
e.g. Current ByteArrayComparator couldn't be used to sort number if exists
negative number.(Because the bytes of -1 is bigger than the bytes of any other
number)
I think supporting per-table configuration of KeyValue Comparator would be
useful.
Welcome comments,
I will make the patch tomorrow.
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