Huaxiang Sun created HBASE-24376:
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Summary: MergeNormalizer is merging non-adjacent regions and
causing region overlaps/holes.
Key: HBASE-24376
URL: https://issues.apache.org/jira/browse/HBASE-24376
Project: HBase
Issue Type: Bug
Components: master
Affects Versions: 2.3.0
Reporter: Huaxiang Sun
Assignee: Huaxiang Sun
Currently, we found normalizer was merging regions which are non-adjacent, it
will cause inconsistencies in the cluster.
{code:java}
439055 2020-05-08 17:47:09,814 INFO
org.apache.hadoop.hbase.master.normalizer.MergeNormalizationPlan: Executing
merging normalization plan: MergeNormalizationPlan{firstRegion={ENCODED =>
47fe236a5e3649ded95cb64ad0c08492, NAME =>
'TABLE,\x03\x01\x05\x01\x04\x02,1554838974870.47fe236a5e3649ded95cb64ad
0c08492.', STARTKEY => '\x03\x01\x05\x01\x04\x02', ENDKEY =>
'\x03\x01\x05\x01\x04\x02\x01\x02\x02201904082200\x00\x00\x03Mac\x00\x00\x00\x00\x00\x00\x00\x00\x00iMac13,1\x00\x00\x00\x00\x00\x049.3-14E260\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x05'},
secondRegion={ENCODED => 0c0f2aa67f4329d5c4 8ba0320f173d31, NAME =>
'TABLE,\x03\x01\x05\x02\x01\x01,1554830735526.0c0f2aa67f4329d5c48ba0320f173d31.',
STARTKEY => '\x03\x01\x05\x02\x01\x01', ENDKEY => '\x03\x01\x05\x02\x01\x02'}}
439056 2020-05-08 17:47:11,438 INFO org.apache.hadoop.hbase.ScheduledChore:
CatalogJanitor-*****:16000 average execution time: 1676219193 ns.
439057 2020-05-08 17:47:11,730 INFO org.apache.hadoop.hbase.master.HMaster:
Client=null/null merge regions [47fe236a5e3649ded95cb64ad0c08492],
[0c0f2aa67f4329d5c48ba0320f173d31]
{code}
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