[HBASE-20530] Composition of backup directory containing namespace when restoring is different from the actual hfile location

• Type: Bug
• Status: Closed
• Priority: Critical
• Resolution: Fixed
• Fix Version/s: 3.0.0-alpha-1
• Hadoop Flags: Reviewed

Release Note

There is a directory layout change (tables with default namespace now get additional level in directory structure of the WALPlayer output) for WALPlayer output in WAL - to- HFile conversion mode, but only when multiple tables are specified (this is case only for backup module). The other tools using WALPLayer are not affected (unless they use multiple tables mode introduced by B&R feature).

• Assignee: Vladimir Rodionov
• Reporter: Ted Yu
• Created: 04/May/18 03:30
• Updated: 01/Jul/22 20:11
• Resolved: 16/May/18 21:21

Description

Here is partial listing of output from incremental backup:

5306 2018-05-04 02:38 hdfs://mycluster/user/hbase/backup_loc/backup_1525401467793/table_almphxih4u/cf1/5648501da7194783947bbf07b172f07e

When restoring, here is what HBackupFileSystem.getTableBackupDir returns:

fileBackupDir=hdfs://mycluster/user/hbase/backup_loc/backup_1525401467793/default/table_almphxih4u

You can see that namespace gets in the way, leading to inability of finding the proper hfile.

Issue Links

• is part of: HBASE-18892 B&R testing