[HBASE-15827] Backport HBASE-15125 'HBaseFsck's adoptHdfsOrphan function creates region with wrong end key boundary' to 1.2

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.2.2
• Hadoop Flags: Reviewed
• Assignee: Ted Yu
• Reporter: Ted Yu
• Created: 13/May/16 21:52
• Updated: 23/Jun/16 03:35
• Resolved: 17/May/16 08:26

Description

There is a bug in HBaseFsck's adoptHdfsOrphan function.At the last of this function will create a region,which want to cover all the orphan regions.But the end key of this new region was set incorrectly.Correct region's boundary should be [startKey,endKey),but this function create a region with boundary of [startKey,endKey],this bug will leads to scan operation omit some data.
I think we should create the region like bellow,

    // create new region on hdfs. move data into place.
    HRegionInfo hri = new HRegionInfo(template.getTableName(), orphanRegionRange.getFirst(),
        Bytes.add(orphanRegionRange.getSecond(), new byte[1]));

This is to backport to branch-1.2

Issue Links

• depends upon: HBASE-15125 HBaseFsck's adoptHdfsOrphan function creates region with wrong end key boundary
• is related to: HBASE-15852 Backport HBASE-15125 'HBaseFsck's adoptHdfsOrphan function creates region with wrong end key boundary' to Apache HBase 1.1