MutableIOMetrics (Flink : Runtime 2.1.1 API)

java.lang.Object
- org.apache.flink.runtime.executiongraph.IOMetrics
- - org.apache.flink.runtime.rest.handler.util.MutableIOMetrics

All Implemented Interfaces:

Serializable
```
public class MutableIOMetrics
extends IOMetrics
```
This class is a mutable version of the IOMetrics class that allows adding up IO-related metrics.
For finished jobs these metrics are stored in the ExecutionGraph as another IOMetrics. For running jobs these metrics are retrieved using the MetricFetcher.
This class provides a common interface to handle both cases, reducing complexity in various handlers (like the JobVertexDetailsHandler).

See Also:

Serialized Form

Field Summary
- Fields inherited from class org.apache.flink.runtime.executiongraph.IOMetrics
  accumulateBackPressuredTime, accumulateBusyTime, accumulateIdleTime, numBytesIn, numBytesOut, numRecordsIn, numRecordsOut, resultPartitionBytes

Constructor Summary

Constructors
Constructor Description

MutableIOMetrics()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`addIOMetrics(AccessExecution attempt, MetricFetcher fetcher, String jobID, String taskID)`	Adds the IO metrics for the given attempt to this object.
`boolean`	`isNumBytesInComplete()`
`boolean`	`isNumBytesOutComplete()`
`boolean`	`isNumRecordsInComplete()`
`boolean`	`isNumRecordsOutComplete()`

Methods inherited from class org.apache.flink.runtime.executiongraph.IOMetrics
getAccumulateBackPressuredTime, getAccumulateBusyTime, getAccumulateIdleTime, getNumBytesIn, getNumBytesOut, getNumRecordsIn, getNumRecordsOut, getResultPartitionBytes

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

- Constructor Detail
  - MutableIOMetrics
```
public MutableIOMetrics()
```
- Method Detail
  - isNumBytesInComplete
```
public boolean isNumBytesInComplete()
```
  - isNumBytesOutComplete
```
public boolean isNumBytesOutComplete()
```
  - isNumRecordsInComplete
```
public boolean isNumRecordsInComplete()
```
  - isNumRecordsOutComplete
```
public boolean isNumRecordsOutComplete()
```
  - addIOMetrics
```
public void addIOMetrics(AccessExecution attempt,
                         @Nullable
                         MetricFetcher fetcher,
                         String jobID,
                         String taskID)
```
    Adds the IO metrics for the given attempt to this object. If the AccessExecution is in a terminal state the contained IOMetrics object is added. Otherwise the given MetricFetcher is used to retrieve the required metrics.
    
    Parameters:
    
    attempt - Attempt whose IO metrics should be added
    
    fetcher - MetricFetcher to retrieve metrics for running jobs
    
    jobID - JobID to which the attempt belongs
    
    taskID - TaskID to which the attempt belongs