Omega359 commented on code in PR #18408:
URL: https://github.com/apache/datafusion/pull/18408#discussion_r2487247780
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datafusion/core/src/execution/context/mod.rs:
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@@ -1134,6 +1170,40 @@ impl SessionContext {
Ok(())
}
+ fn reset_runtime_variable(&self, variable: &str) -> Result<()> {
+ let key = variable.strip_prefix("datafusion.runtime.").unwrap();
+
+ let mut state = self.state.write();
+
+ let mut builder =
RuntimeEnvBuilder::from_runtime_env(state.runtime_env());
+ match key {
+ "memory_limit" => {
+ builder.memory_pool = None;
+ }
+ "max_temp_directory_size" => {
+ // default is 100 GB
+ const DEFAULT_MAX_TEMP_DIRECTORY_SIZE: u64 = 100 * 1024 * 1024
* 1024;
+ builder =
+
builder.with_max_temp_directory_size(DEFAULT_MAX_TEMP_DIRECTORY_SIZE);
+ }
+ "temp_directory" => {
+ builder.disk_manager_builder =
Some(DiskManagerBuilder::default());
+ }
+ "metadata_cache_limit" => {
+ // default is 50 MB
+ const DEFAULT_METADATA_CACHE_LIMIT: usize = 50 * 1024 * 1024;
+ builder =
builder.with_metadata_cache_limit(DEFAULT_METADATA_CACHE_LIMIT);
Review Comment:
Same here in cache_manager.rs
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