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HBASE-27251 Rolling back from 2.5.0-SNAPSHOT to 2.4.13 fails due to '… #4663

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Jul 28, 2022
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HBASE-27251 Rolling back from 2.5.0-SNAPSHOT to 2.4.13 fails due to '… #4663

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8 changes: 5 additions & 3 deletions hbase-server/src/main/java/org/apache/hadoop/hbase/master/region/MasterRegion.java
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Original file line number Diff line number Diff line change
Expand Up @@ -225,9 +225,11 @@ private static HRegion open(Configuration conf, TableDescriptor td, FileSystem f
FileSystem walFs, Path walRootDir, WALFactory walFactory, MasterRegionWALRoller walRoller,
String serverName) throws IOException {
Path tableDir = CommonFSUtils.getTableDir(rootDir, td.getTableName());
Path regionDir =
fs.listStatus(tableDir, p -> RegionInfo.isEncodedRegionName(Bytes.toBytes(p.getName())))[0]
.getPath();
// on branch-2, the RegionInfo.isEncodedRegionName will returns true for .initializing and
// .initialized, see HBASE-25368. Since RegionInfo is IA.Public, changing the implementation may
// raise compatibility concerns, so here we just skip them by our own.
Path regionDir = fs.listStatus(tableDir, p -> !p.getName().startsWith(".")
&& RegionInfo.isEncodedRegionName(Bytes.toBytes(p.getName())))[0].getPath();
RegionInfo regionInfo = HRegionFileSystem.loadRegionInfoFileContent(fs, regionDir);

Path walRegionDir = FSUtils.getRegionDirFromRootDir(walRootDir, regionInfo);
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