chzhoo opened a new pull request, #626:
URL: https://github.com/apache/geaflow/pull/626
### What changes were proposed in this pull request?
I simulated the automatic failover capability of the container module by
randomly killing threads inside the container and discovered that the driver
module has an infinite crash issue. The crash stack is as follows:
```
2025-09-24 15:02:22,569 [driver-executor-0] ERROR Driver:154 - driver
exception
java.lang.ClassCastException:
org.apache.geaflow.runtime.core.scheduler.PipelineCycleScheduler cannot be cast
to org.apache.geaflow.runtime.core.scheduler.ExecutionGraphCycleScheduler
at
org.apache.geaflow.runtime.pipeline.runner.PipelineRunner.executePipelineGraph(PipelineRunner.java:80)
at
org.apache.geaflow.runtime.pipeline.runner.PipelineRunner.runPipelineGraph(PipelineRunner.java:87)
at
org.apache.geaflow.runtime.pipeline.task.PipelineTaskExecutor.execute(PipelineTaskExecutor.java:54)
at
org.apache.geaflow.runtime.pipeline.executor.PipelineExecutor.runPipelineTask(PipelineExecutor.java:76)
at
org.apache.geaflow.cluster.driver.Driver.executePipelineInternal(Driver.java:136)
at
org.apache.geaflow.cluster.driver.Driver.lambda$init$0(Driver.java:92)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:750)
```
The reason for the issue is that `CycleSchedulerFactory.create()` may return
either a `PipelineCycleScheduler` type or an `ExecutionGraphCycleScheduler`
type, but the
[code](https://github.com/apache/geaflow/blob/817bdd9306b77d83e0bf475c6dbf0f8d28494589/geaflow/geaflow-core/geaflow-runtime/geaflow-pipeline/src/main/java/org/apache/geaflow/runtime/pipeline/runner/PipelineRunner.java#L80)
only accounts for the `ExecutionGraphCycleScheduler` scenario.
### How was this PR tested?
- [ ] Tests have Added for the changes
- [ ] Production environment verified
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