[HBASE-28457] Introduce a version field in file based tracker record

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.6.0, 3.0.0-beta-2, 2.5.9
• Component/s: HFile
• Labels: pull-request-available
• Hadoop Flags: Reviewed
• Release Note: Introduce a 'version' field in file based tracker record, so while downgrading, we will know that we are reading a new version of file tracker file and fail with explicit message instead of failing silently and causing possible data loss.
• Assignee: Duo Zhang
• Reporter: Duo Zhang
• Created: 26/Mar/24 14:43
• Updated: 08/Apr/24 21:32
• Resolved: 07/Apr/24 10:39

Description

Per the discussion around HBASE-27826 and the related design doc, we all agree that we should add version field to store file tracker, so when downgrading, we will know that we will miss something when reading a tracker file with higher version and fail the initialization, instead of ignore it silently and may cause data loss.

Issue Links

• links to: GitHub Pull Request #5784