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# Apache DataFusion Ballista 0.8.0 Changelog

[Full Changelog](https://github.com/apache/datafusion-ballista/compare/0.7.0...0.8.0)

**Implemented enhancements:**

- Executor should use all available cores by default [\#218](https://github.com/apache/datafusion-ballista/issues/218)
- Update task status to the task job curator scheduler [\#179](https://github.com/apache/datafusion-ballista/issues/179)
- update datafusion and arrow to 20.0.0 [\#176](https://github.com/apache/datafusion-ballista/issues/176)
- No scheduler logs when deployed to k8s [\#165](https://github.com/apache/datafusion-ballista/issues/165)
- Upgrade to DataFusion 11.0.0 [\#163](https://github.com/apache/datafusion-ballista/issues/163)
- Better encapsulation for ExecutionGraph [\#149](https://github.com/apache/datafusion-ballista/issues/149)
- A stage may act as the input of multiple stages [\#144](https://github.com/apache/datafusion-ballista/issues/144)
- Executor Lost handling [\#143](https://github.com/apache/datafusion-ballista/issues/143)
- Cancel a running query. [\#139](https://github.com/apache/datafusion-ballista/issues/139)
- Ignore the previous job_id inside fill_reservations\(\) [\#138](https://github.com/apache/datafusion-ballista/issues/138)
- Normalize the serialization and deserialization places of protobuf structs [\#137](https://github.com/apache/datafusion-ballista/issues/137)
- Remove revive offer event loop [\#136](https://github.com/apache/datafusion-ballista/issues/136)
- Remove Keyspace::QueuedJobs [\#133](https://github.com/apache/datafusion-ballista/issues/133)
- Spawn a thread for execution plan generation [\#131](https://github.com/apache/datafusion-ballista/issues/131)
- Introduce CuratorTaskManager for make an active job be curated by only one scheduler [\#130](https://github.com/apache/datafusion-ballista/issues/130)
- Using tokio tracing for log file [\#122](https://github.com/apache/datafusion-ballista/issues/122)
- Ballista Executor report plan/operators metrics to Ballista Scheduler when task finish [\#116](https://github.com/apache/datafusion-ballista/issues/116)
- Add timeout settings for Grpc Client [\#114](https://github.com/apache/datafusion-ballista/issues/114)
- Add log level config in ballista [\#102](https://github.com/apache/datafusion-ballista/issues/102)
- Use another channel to update the status of a task set for executor [\#96](https://github.com/apache/datafusion-ballista/issues/96)
- Add config for concurrent_task in executor [\#94](https://github.com/apache/datafusion-ballista/issues/94)
- Ballista should support Arrow FlightSQL [\#92](https://github.com/apache/datafusion-ballista/issues/92)
- Why not include the `ballista-cli` in the member of workspace [\#88](https://github.com/apache/datafusion-ballista/issues/88)
- Upgrade dependency of arrow-datafusion to commit d0d5564b8f689a01e542b8c1df829d74d0fab2b0 [\#84](https://github.com/apache/datafusion-ballista/issues/84)
- Support sled path in config file. [\#79](https://github.com/apache/datafusion-ballista/issues/79)
- Support for multi-scheduler deployments [\#39](https://github.com/apache/datafusion-ballista/issues/39)
- Ballista 0.7.0 Release [\#126](https://github.com/apache/datafusion-ballista/issues/126)
- Improvements to Ballista extensibility [\#8](https://github.com/apache/datafusion-ballista/issues/8)
- Implement Python bindings for BallistaContext [\#15](https://github.com/apache/datafusion-ballista/issues/15)

**Fixed bugs:**

- Run example fails via PushStaged mode [\#214](https://github.com/apache/datafusion-ballista/issues/214)
- Config settings in BallistaContext do not get passed to DataFusion context [\#213](https://github.com/apache/datafusion-ballista/issues/213)
- Start scheduler fails with arguments "-s PushStaged" [\#207](https://github.com/apache/datafusion-ballista/issues/207)
- FlightSQL is broken and CI isn't catching it [\#190](https://github.com/apache/datafusion-ballista/issues/190)
- Query fails with "NULL is invalid as a DataFusion scalar value" [\#180](https://github.com/apache/datafusion-ballista/issues/180)
- Executor doesn't compile, missing `tokio::signal` [\#171](https://github.com/apache/datafusion-ballista/issues/171)
- Unable to build master [\#76](https://github.com/apache/datafusion-ballista/issues/76)