> For the complete documentation index, see [llms.txt](https://jinhoko.gitbook.io/apache-spark-assembly/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://jinhoko.gitbook.io/apache-spark-assembly/core-operation-related.md).

# Core - Operation related

- [SparkContext](https://jinhoko.gitbook.io/apache-spark-assembly/core-operation-related/sparkcontext.md)
- [SparkConf](https://jinhoko.gitbook.io/apache-spark-assembly/core-operation-related/sparkconf.md)
- [SparkEnv](https://jinhoko.gitbook.io/apache-spark-assembly/core-operation-related/sparkenv.md)
- [Heartbeat](https://jinhoko.gitbook.io/apache-spark-assembly/core-operation-related/heartbeat.md)
- [HeartbeatReceiver](https://jinhoko.gitbook.io/apache-spark-assembly/core-operation-related/heartbeat/heartbeatreceiver.md)
- [Untitled](https://jinhoko.gitbook.io/apache-spark-assembly/core-operation-related/heartbeat/untitled-1.md)
- [Scheduler](https://jinhoko.gitbook.io/apache-spark-assembly/core-operation-related/scheduler.md)