Smotrov commented on issue #10897:
URL: https://github.com/apache/datafusion/issues/10897#issuecomment-2173801556
Thank you @alamb
This is what I actually did.
```RUST
const MEMORY_LIMIT: usize = 8 * 1024 * 1024 * 1024; // 8GB
fn create_context() -> Result<SessionContext> {
// Create a memory pool with a limit
let memory_pool = Arc::new(FairSpillPool::new(MEMORY_LIMIT));
// Configure the runtime environment to use the memory pool
let rt_config = RuntimeConfig::new()
.with_memory_pool(memory_pool)
.with_temp_file_path(PathBuf::from("./tmp"));
let runtime_env = Arc::new(RuntimeEnv::new(rt_config)?);
// Configure the session context to use the runtime environment
let session_config = SessionConfig::new();
let ctx = SessionContext::new_with_config_rt(session_config,
runtime_env);
Ok(ctx)
}
```
However it easily takes 20..30GB of RAM and what is interesting, the CPU
load stays relatively small. Like 20...30%.
The memory consumption is that high when I set at lease 4 target partitions.
```RUST
// Define the partitioned Listing Table
let listing_options = ListingOptions::new(file_format)
.with_table_partition_cols(part)
.with_target_partitions(4)
.with_file_extension(".ndjson.zst");
```
Would be grate if it would be possible to set an actual limit for the memory
otherwise I can't use it on docker :-(
Full utilization of all CPU cores would also be cool if possible.
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