Ted Yu created HBASE-14987:
------------------------------
Summary: HBaseFsck#mergeRegionDirs() need to handle compaction
marker in recovered edits
Key: HBASE-14987
URL: https://issues.apache.org/jira/browse/HBASE-14987
Project: HBase
Issue Type: Bug
Reporter: Ted Yu
One customer encountered the following error when replaying recovered edits,
leading to region open failure:
{code}
region=table1,d6b-2282-9223370590058224807-U-9856557-
EJ452727-16313786400171,1449616291799.fa8a526f2578eb3630bb08a4b1648f5d.,
starting to roll back the global memstore size.
org.apache.hadoop.hbase.regionserver.WrongRegionException: Compaction marker
from WAL table_name: "table1"
encoded_region_name: "d389c70fde9ec07971d0cfd20ef8f575"
...
region_name:
"table1,d6b-2282-9223370590058224807-U-9856557-EJ452727-16313786400171,1449089609367.d389c70fde9ec07971d0cfd20ef8f575."
targetted for region d389c70fde9ec07971d0cfd20ef8f575 does not match this
region: {ENCODED => fa8a526f2578eb3630bb08a4b1648f5d, NAME => 'table1,d6b-2282-
9223370590058224807-U-9856557-EJ452727-16313786400171,1449616291799.fa8a526f2578eb3630bb08a4b1648f5d.',
STARTKEY => 'd6b-2282-9223370590058224807-U-9856557-EJ452727-
16313786400171', ENDKEY =>
'd76-2553-9223370588576178807-U-7416904-EK875822-17662180600000'}
at
org.apache.hadoop.hbase.regionserver.HRegion.checkTargetRegion(HRegion.java:4592)
at
org.apache.hadoop.hbase.regionserver.HRegion.replayWALCompactionMarker(HRegion.java:3831)
at
org.apache.hadoop.hbase.regionserver.HRegion.replayRecoveredEdits(HRegion.java:3747)
at
org.apache.hadoop.hbase.regionserver.HRegion.replayRecoveredEditsIfAny(HRegion.java:3601)
at
org.apache.hadoop.hbase.regionserver.HRegion.initializeRegionStores(HRegion.java:911)
at
org.apache.hadoop.hbase.regionserver.HRegion.initializeRegionInternals(HRegion.java:789)
at org.apache.hadoop.hbase.regionserver.HRegion.initialize(HRegion.java:762)
at org.apache.hadoop.hbase.regionserver.HRegion.openHRegion(HRegion.java:5774)
at org.apache.hadoop.hbase.regionserver.HRegion.openHRegion(HRegion.java:5744)
{code}
This was likely caused by the following action of hbck:
{code}
15/12/08 18:11:34 INFO util.HBaseFsck: [hbasefsck-pool1-t37] Moving files from
hdfs://Zealand/hbase/data/default/table1/d389c70fde9ec07971d0cfd20ef8f575/recovered.edits
into containing region
hdfs://Zealand/hbase/data/default/table1/fa8a526f2578eb3630bb08a4b1648f5d/recovered.edits
{code}
The recovered.edits for d389c70fde9ec07971d0cfd20ef8f575 contained compaction
marker which couldn't be replayed against fa8a526f2578eb3630bb08a4b1648f5d
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