ThreadResourceUsageAccountant (Pinot Service Provider Interface 0.12.1 API)

All Known Implementing Classes:

Tracing.DefaultThreadResourceUsageAccountant
```
public interface ThreadResourceUsageAccountant
```

Method Summary

Modifier and Type	Method	Description
`void`	`clear()`	clear thread accounting info when a task finishes execution on a thread
`void`	`createExecutionContext(String queryId, int taskId, ThreadExecutionContext parentContext)`	Task tracking info
`Exception`	`getErrorStatus()`	get error status if the query is preempted
`ThreadExecutionContext`	`getThreadExecutionContext()`	get the executon context of current thread
`boolean`	`isAnchorThreadInterrupted()`	check if the corresponding anchor thread of current thread is interrupted so that when we preempt a task we only call interrupt on the anchor thread
`void`	`sampleUsage()`	call to sample usage
`void`	`setThreadResourceUsageProvider(ThreadResourceUsageProvider threadResourceUsageProvider)`	set resource usage provider
`void`	`startWatcherTask()`	start the periodical task

- Method Detail
  - clear
```
void clear()
```
    clear thread accounting info when a task finishes execution on a thread
  - isAnchorThreadInterrupted
```
boolean isAnchorThreadInterrupted()
```
    check if the corresponding anchor thread of current thread is interrupted so that when we preempt a task we only call interrupt on the anchor thread
  - createExecutionContext
```
void createExecutionContext(String queryId,
                            int taskId,
                            @Nullable
                            ThreadExecutionContext parentContext)
```
    Task tracking info
    
    Parameters:
    
    queryId - query id string
    
    taskId - a unique task id
    
    parentContext - the parent execution context, null for root(runner) thread
  - getThreadExecutionContext
```
ThreadExecutionContext getThreadExecutionContext()
```
    get the executon context of current thread
  - setThreadResourceUsageProvider
```
void setThreadResourceUsageProvider(ThreadResourceUsageProvider threadResourceUsageProvider)
```
    set resource usage provider
  - sampleUsage
```
void sampleUsage()
```
    call to sample usage
  - startWatcherTask
```
void startWatcherTask()
```
    start the periodical task
  - getErrorStatus
```
Exception getErrorStatus()
```
    get error status if the query is preempted
    
    Returns:
    
    empty string if N/A