milenkovicm opened a new issue, #1104:
URL: https://github.com/apache/datafusion-ballista/issues/1104
**Is your feature request related to a problem or challenge? Please describe
what you are trying to do.**
I would like to propose to trim down `BallistaConfig`, make `SessionConfig`
as main way to configure Ballista and make `BallistaConfig` just a part of it,
with ballista specific configurations
**Describe the solution you'd like**
merge following configuration:
```
+-------------------------------------------------------------------------+---------------------------+
| name |
value |
+-------------------------------------------------------------------------+---------------------------+
| ballista.batch.size |
8192 |
| datafusion.execution.batch_size |
8192 |
| ballista.collect_statistics |
false |
| datafusion.execution.collect_statistics |
false |
| ballista.optimizer.hash_join_single_partition_threshold |
1048576 |
| datafusion.optimizer.hash_join_single_partition_threshold |
1048576 |
| ballista.parquet.pruning |
true |
| datafusion.execution.parquet.pruning |
true |
| ballista.repartition.aggregations |
true |
| datafusion.optimizer.repartition_aggregations |
true |
| ballista.repartition.joins |
true |
| datafusion.optimizer.repartition_joins |
true |
| ballista.repartition.windows |
true |
| datafusion.optimizer.repartition_windows |
true |
| ballista.with_information_schema |
false |
| datafusion.catalog.information_schema |
true |
| ballista.shuffle.partitions |
16 |
| datafusion.execution.target_partitions |
8 |
| ballista.standalone.parallelism |
8 |
| datafusion.execution.target_partitions |
8 |
+-------------------------------------------------------------------------+---------------------------+
```
If we check `/ballista/scheduler/src/state/session_manager.rs`
```rust
pub fn create_datafusion_context(
ballista_config: &BallistaConfig,
session_builder: SessionBuilder,
) -> Arc<SessionContext> {
let config =
SessionConfig::from_string_hash_map(&ballista_config.settings().clone()).unwrap();
let config = config
.with_target_partitions(ballista_config.default_shuffle_partitions())
.with_batch_size(ballista_config.default_batch_size())
.with_repartition_joins(ballista_config.repartition_joins())
.with_repartition_aggregations(ballista_config.repartition_aggregations())
.with_repartition_windows(ballista_config.repartition_windows())
.with_collect_statistics(ballista_config.collect_statistics())
.with_parquet_pruning(ballista_config.parquet_pruning())
.set_usize(
"datafusion.optimizer.hash_join_single_partition_threshold",
ballista_config.hash_join_single_partition_threshold(),
)
.set_bool("datafusion.optimizer.enable_round_robin_repartition",
false);
let session_state = session_builder(config);
Arc::new(SessionContext::new_with_state(session_state))
}
```
ballista specific configuration, which should be preserved:
```
+-------------------------------------------------------------------------+---------------------------+
| name |
value |
+-------------------------------------------------------------------------+---------------------------+
| ballista.grpc_client_max_message_size |
16777216 |
| ballista.job.name |
|
+-------------------------------------------------------------------------+---------------------------+
```
we can see that configuration map 1 to 1 to datafusion configuration
Note: `datafusion.optimizer.enable_round_robin_repartition` has to be false
`false` ;
**Describe alternatives you've considered**
keep `BallistaConfig` but at the moment i see no benefit of keeping it or
scenarios which `SessionConfig` cant support
**Additional context**
As it stands with introduction of `SessionContextExt`, `BallistaConfig` has
been removed from all public interfaces, with this change `BallistaConfig`
will probably be removed from most internal interfaces as well.
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