mapleFU commented on code in PR #41335:
URL: https://github.com/apache/arrow/pull/41335#discussion_r1581424142
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cpp/src/arrow/acero/query_context.cc:
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@@ -23,6 +23,36 @@ namespace arrow {
using arrow::internal::CpuInfo;
namespace acero {
+namespace internal {
+
+int64_t GetTempStackSizeFromEnvVar() {
+ auto maybe_env_value = arrow::internal::GetEnvVar(kTempStackSizeEnvVar);
+ if (!maybe_env_value.ok()) {
+ return kDefaultTempStackSize;
+ }
+ auto env_value = *std::move(maybe_env_value);
+ if (env_value.empty()) {
+ return kDefaultTempStackSize;
+ }
+
+ int64_t temp_stack_size = 0;
+ size_t length = 0;
+ bool exception = false;
+ try {
+ temp_stack_size = std::stoll(env_value.c_str(), &length);
+ } catch (const std::exception&) {
+ exception = true;
+ }
+ if (length != env_value.length() || exception || temp_stack_size <= 0) {
+ ARROW_LOG(WARNING) << "Invalid temp stack size provided in " <<
kTempStackSizeEnvVar
+ << ". Using default temp stack size: " <<
kDefaultTempStackSize;
+ return kDefaultTempStackSize;
+ }
+ return temp_stack_size;
Review Comment:
Should that fill better only in debug mode?
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