[SPARK-54116][SQL] Add off-heap mode support for LongHashedRelation #52817
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cloud-fan
pushed a commit
that referenced
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Nov 3, 2025
…nSuite
### What changes were proposed in this pull request?
Add the following code in `HashedRelationSuite`, to cover the API `HashedRelation#close` in the test suite.
```scala
protected override def afterEach(): Unit = {
super.afterEach()
assert(umm.executionMemoryUsed === 0)
}
```
### Why are the changes needed?
Doing this will:
1. Ensure `HashedRelation#close` is called in test code, to lower memory footprint and avoid memory leak when executing tests.
2. Ensure implementations of `HashedRelation#close` free the allocated memory blocks correctly.
It's an individual effort to improve the test quality, but also a prerequisite task for #52817.
### Does this PR introduce _any_ user-facing change?
No.
### How was this patch tested?
It's a test PR.
### Was this patch authored or co-authored using generative AI tooling?
No.
Closes #52830 from zhztheplayer/wip-54132.
Authored-by: Hongze Zhang <[email protected]>
Signed-off-by: Wenchen Fan <[email protected]>
cloud-fan
pushed a commit
that referenced
this pull request
Nov 3, 2025
…nSuite
### What changes were proposed in this pull request?
Add the following code in `HashedRelationSuite`, to cover the API `HashedRelation#close` in the test suite.
```scala
protected override def afterEach(): Unit = {
super.afterEach()
assert(umm.executionMemoryUsed === 0)
}
```
### Why are the changes needed?
Doing this will:
1. Ensure `HashedRelation#close` is called in test code, to lower memory footprint and avoid memory leak when executing tests.
2. Ensure implementations of `HashedRelation#close` free the allocated memory blocks correctly.
It's an individual effort to improve the test quality, but also a prerequisite task for #52817.
### Does this PR introduce _any_ user-facing change?
No.
### How was this patch tested?
It's a test PR.
### Was this patch authored or co-authored using generative AI tooling?
No.
Closes #52830 from zhztheplayer/wip-54132.
Authored-by: Hongze Zhang <[email protected]>
Signed-off-by: Wenchen Fan <[email protected]>
(cherry picked from commit a5e866f)
Signed-off-by: Wenchen Fan <[email protected]>
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What changes were proposed in this pull request?
The PR adds off-heap memory mode support for LongHashedRelation.
Why are the changes needed?
To avoid on-heap OOMs when user sets
spark.memory.offHeap.enabled=true, and configures JVM with a comparatively small heap size.Does this PR introduce any user-facing change?
When
spark.memory.offHeap.enabled=trueis set:How was this patch tested?
WIP
Was this patch authored or co-authored using generative AI tooling?
No.