[HUDI-5760] Make sure DeleteBlock doesn't use Kryo for serialization to disk

• Type: Bug
• Status: Closed
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: 1.0.0-beta1
• Fix Version/s: 0.14.0
• Component/s: writer-core
• Labels: pull-request-available
• Story Points: 4
• Assignee: Ethan Guo (this is the old account; please use "yihua")
• Reporter: Alexey Kudinkin
• Created: 10/Feb/23 02:50
• Updated: 14/Dec/23 01:43
• Resolved: 14/Dec/23 01:43

Description

The problem is that serialization of the `HoodieDeleteBlock` is generated dynamically by Kryo that could change whenever any class comprising it changes.

We've been bitten by this already twice:

HUDI-5758

HUDI-4959

 

Instead, anything that is persisted on disk have to be serialized using hard-coded methods (same way HoodieDataBlock are serailized)

Issue Links

• causes: HUDI-5758 MOR table w/ delete block in 0.12.2 not readable in 0.13 and also not compactable
• links to: GitHub Pull Request #9315