WrongRegionException when setting region online after .META. split
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Key: HBASE-1857
URL: https://issues.apache.org/jira/browse/HBASE-1857
Project: Hadoop HBase
Issue Type: Bug
Components: master
Affects Versions: 0.20.0
Environment: OSX/Linux
Reporter: Cosmin Lehene
Fix For: 0.20.1
After splitting .META. when updating region information in .META. (e.g.
ProcessRegionOpen) the wrong .META. region was retrieved in RegionManager from
onlineMetaRegions map.
This is due to a bug in RegionManager.getFirstMetaRegionForRegion that was
using the wrong key to get data out of the map (the table name instead of the
region name)
return
onlineMetaRegions.get(onlineMetaRegions.headMap(newRegion.getTableDesc().getName()).lastKey());
and when adding the region to the map it was added with
onlineMetaRegions.put(metaRegion.getStartKey(), metaRegion);
so it's supposed to be taken out with:
return
onlineMetaRegions.get(onlineMetaRegions.headMap(newRegion.getRegionName()).lastKey());
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