[HBASE-20649] Validate HFiles do not have PREFIX_TREE DataBlockEncoding

• Type: New Feature
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 3.0.0-alpha-1, 2.2.0, 2.1.1, 2.0.2
• Component/s: Operability, tooling
• Hadoop Flags: Reviewed

Release Note

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Users who have previously made use of prefix tree encoding can now check that their existing HFiles no longer contain data that uses it with an additional preupgrade check command.

```
hbase pre-upgrade validate-hfile
```

Please see the "HFile Content validation" section of the ref guide's coverage of the pre-upgrade validator tool for usage details.

• Assignee: Balazs Meszaros
• Reporter: Peter Somogyi
• Created: 25/May/18 13:19
• Updated: 04/Oct/19 14:59
• Resolved: 28/Aug/18 14:10

Description

HBASE-20592 adds a tool to check column families on the cluster do not have PREFIX_TREE encoding.

Since it is possible that DataBlockEncoding was already changed but HFiles are not rewritten yet we would need a tool that can verify the content of hfiles in the cluster.

Issue Links

• is related to: HBASE-20592 Create a tool to verify tables do not have prefix tree encoding
• links to: Review Board