FailoverStrategy (Flink : Runtime 2.1.1 API)

All Known Implementing Classes:

RestartAllFailoverStrategy, RestartPipelinedRegionFailoverStrategy
```
public interface FailoverStrategy
```
New interface for failover strategies.

Nested Class Summary

Nested Classes
Modifier and Type Interface Description

static interface FailoverStrategy.Factory
The factory to instantiate FailoverStrategy.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`Set<ExecutionVertexID>`	`getTasksNeedingRestart(ExecutionVertexID executionVertexId, Throwable cause)`	Returns a set of IDs corresponding to the set of vertices that should be restarted.

- Method Detail
  - getTasksNeedingRestart
```
Set<ExecutionVertexID> getTasksNeedingRestart(ExecutionVertexID executionVertexId,
                                              Throwable cause)
```
    Returns a set of IDs corresponding to the set of vertices that should be restarted.
    
    Parameters:
    
    executionVertexId - ID of the failed task
    
    cause - cause of the failure
    
    Returns:
    
    set of IDs of vertices to restart