[Java] Memory allocation alignment
- Dominant language
- Java
- Stars
- 94
- Forks
- 152
- Avg merge
- 3d 16h
- Merged PRs (30d)
- 11
Description
### Describe the bug, including details regarding any error messages, version, and platform.
We see memory alignment error when passing arrays allocated using Java arrow to Rust arrow. This is due to strict memory alignment requirement (https://github.com/apache/arrow-rs/issues/4431) at Rust side. I have described the issue there.
So as it looks like it is impossible to access unaligned memory pointers at Rust side. I'm wondering if we could change Java arrow on memory allocation? Could we allocate memory with alignment for arrays in Java arrow so it could be safely sent to other arrow ecosystems?
### Component(s)
Java
Contributor guide
Research direction
Start by reviewing the Java component's memory-allocation path and the linked arrow-rs issue 4431. Determine whether Java Arrow can provide the alignment required for arrays shared with Rust Arrow, and define the allocation behavior and validation needed for the issue to be considered resolved.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- java
- Domain
- data-engineering
- Issue type
- Bug
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100