baibaichen commented on code in PR #11493:
URL:
https://github.com/apache/incubator-gluten/pull/11493#discussion_r2732572286
##########
cpp/velox/memory/VeloxMemoryManager.cc:
##########
@@ -327,22 +330,17 @@ int64_t
shrinkVeloxMemoryPool(velox::memory::MemoryManager* mm, velox::memory::M
std::shared_ptr<arrow::MemoryPool>
VeloxMemoryManager::getOrCreateArrowMemoryPool(const std::string& name) {
std::lock_guard<std::mutex> l(mutex_);
if (const auto it = arrowPools_.find(name); it != arrowPools_.end()) {
- auto pool = it->second.lock();
- VELOX_CHECK_NOT_NULL(pool, "Arrow memory pool {} has been destructed",
name);
- return pool;
+ if (auto pool = it->second.lock()) {
+ return pool;
+ }
+ arrowPools_.erase(name);
}
- auto pool = std::make_shared<ArrowMemoryPool>(
- blockListener_.get(), [this, name](arrow::MemoryPool* pool) {
this->dropMemoryPool(name); });
+
+ auto pool = std::make_shared<ArrowMemoryPool>(blockListener_.get());
Review Comment:
If there aren’t many entries in `arrowPools_`, I think it’s fine to keep
them via `shared_ptr`. A `MemoryPool` object itself shouldn’t take much memory
anyway.
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