[HBASE-15852] Backport HBASE-15125 'HBaseFsck's adoptHdfsOrphan function creates region with wrong end key boundary' to Apache HBase 1.1

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.1.5
• Fix Version/s: 1.1.6
• Component/s: hbck
• Assignee: Stephen Yuan Jiang
• Reporter: Stephen Yuan Jiang
• Created: 18/May/16 14:20
• Updated: 18/May/16 16:43
• Resolved: 18/May/16 16:43

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 HBASE-15125 to branch-1.1. HBASE-15827 could not do it due to a bug in TestHBaseFsck test suite (see HBASE-15850)

Issue Links

• is blocked by: HBASE-15850 Localize the configuration change in testCheckTableLocks to reduce flakiness of TestHBaseFsck test suite
• relates to: HBASE-15827 Backport HBASE-15125 'HBaseFsck's adoptHdfsOrphan function creates region with wrong end key boundary' to 1.2
• requires: HBASE-15125 HBaseFsck's adoptHdfsOrphan function creates region with wrong end key boundary