io.trino.execution.executor.scheduler.FairScheduler

@ThreadSafe public final class FairScheduler extends Object implements AutoCloseable

Implementation nodes

The TaskControl state machine is only modified by the task executor thread (i.e., from within runTask(Schedulable, TaskControl) )}). Other threads can indirectly affect what the task executor thread does by marking the task as ready or cancelled and unblocking the task executor thread, which will then act on that information.

Field Details
- QUANTUM_NANOS
  
  public static final long QUANTUM_NANOS
Constructor Details
- FairScheduler
  
  public FairScheduler(int maxConcurrentTasks, String threadNameFormat, com.google.common.base.Ticker ticker)
Method Details
- newInstance
  
  public static FairScheduler newInstance(int maxConcurrentTasks)
- newInstance
  
  public static FairScheduler newInstance(int maxConcurrentTasks, com.google.common.base.Ticker ticker)
- start
  
  public void start()
- pause
  
  public void pause()
- resume
  
  public void resume()
- close
  
  public void close()
  
  Specified by:
  
  close in interface AutoCloseable
- createGroup
  
  public Group createGroup(String name)
- removeGroup
  
  public void removeGroup(Group group)
- getTasks
  
  public Set<Integer> getTasks(Group group)
- submit
  
  public com.google.common.util.concurrent.ListenableFuture<Void> submit(Group group, int id, Schedulable runner)
- diagnostics
  
  public String diagnostics()
- toString
  
  public String toString()
  
  Overrides:
  
  toString in class Object

Class FairScheduler