Tracing (Pinot Service Provider Interface 0.12.1 API)

java.lang.Object
- org.apache.pinot.spi.trace.Tracing

```
public class Tracing
extends Object
```
Global registration for tracing and thread accounting implementations

Nested Class Summary

Nested Classes
Modifier and Type	Class	Description
`static class`	`Tracing.DefaultThreadResourceUsageAccountant`	Default accountant that is used to enable worker thread cancellation upon runner thread's interruption
`static class`	`Tracing.ThreadAccountantOps`	Accountant related Ops util class

Method Summary

Modifier and Type	Method	Description
`static InvocationRecording`	`activeRecording()`	Get the active recording on the current thread to write values into.
`static ThreadResourceUsageAccountant`	`getThreadAccountant()`
`static Tracer`	`getTracer()`
`static boolean`	`register(ThreadResourceUsageAccountant threadResourceUsageAccountant)`	Registration point to allow customization of thread accounting behavior.
`static boolean`	`register(Tracer tracer)`	User once registration point to allow customization of tracing behaviour.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Method Detail
  - register
```
public static boolean register(Tracer tracer)
```
    User once registration point to allow customization of tracing behaviour. Registration will be successful if this was the first attempt to register and registration happened before first use of the tracer.
    
    Parameters:
    
    tracer - the tracer implementation
    
    Returns:
    
    true if the registration was successful.
  - register
```
public static boolean register(ThreadResourceUsageAccountant threadResourceUsageAccountant)
```
    Registration point to allow customization of thread accounting behavior. Registration will be successful if this was the first attempt to register and registration happened before first use of the thread accountant.
    
    Parameters:
    
    threadResourceUsageAccountant - the threadAccountant implementation
    
    Returns:
    
    true if the registration was successful.
  - getTracer
```
public static Tracer getTracer()
```
    Returns:
    
    the registered tracer.
  - getThreadAccountant
```
public static ThreadResourceUsageAccountant getThreadAccountant()
```
    Returns:
    
    the registered threadAccountant.
  - activeRecording
```
public static InvocationRecording activeRecording()
```
    Get the active recording on the current thread to write values into.
    
    Returns:
    
    the active recording