Uses of Interface
org.apache.giraph.worker.WorkerObserver

Packages that use WorkerObserver

Package	Description
org.apache.giraph.bsp	Package of generic bulk synchronous processing objects.
org.apache.giraph.conf	Package of Giraph configuration related things.
org.apache.giraph.utils	Package of all generic utility classes.
org.apache.giraph.worker	Package of all the worker related things

Uses of WorkerObserver in org.apache.giraph.bsp

Methods in org.apache.giraph.bsp that return WorkerObserver

Modifier and Type	Method and Description
WorkerObserver[]	CentralizedServiceWorker.getWorkerObservers() Get the observers for this Worker.

Uses of WorkerObserver in org.apache.giraph.conf

Fields in org.apache.giraph.conf with type parameters of type WorkerObserver

Modifier and Type	Field and Description
static ClassConfOption<WorkerObserver>	GiraphConstants.WORKER_OBSERVER_CLASSES Classes for Worker Observer - optional

Methods in org.apache.giraph.conf that return WorkerObserver

Modifier and Type	Method and Description
WorkerObserver[]	ImmutableClassesGiraphConfiguration.createWorkerObservers(org.apache.hadoop.mapreduce.Mapper.Context context) Create array of WorkerObservers.

Method parameters in org.apache.giraph.conf with type arguments of type WorkerObserver

Modifier and Type	Method and Description
void	GiraphConfiguration.addWorkerObserverClass(Class<? extends WorkerObserver> workerObserverClass) Add a WorkerObserver class (optional)

Uses of WorkerObserver in org.apache.giraph.utils

Classes in org.apache.giraph.utils that implement WorkerObserver

Modifier and Type	Class and Description
class	JMapHistoDumper An observer for both worker and master that periodically dumps the memory usage using jmap tool.
class	LogVersions Logs versions of Giraph dependencies on job start.
class	ReactiveJMapHistoDumper An observer for both worker and master that periodically checks if available memory on heap is below certain threshold, and if found to be the case dumps jmap -histo for the process

Uses of WorkerObserver in org.apache.giraph.worker

Classes in org.apache.giraph.worker that implement WorkerObserver

Modifier and Type	Class and Description
class	DefaultWorkerObserver Default Observer for Worker that does nothing.

Methods in org.apache.giraph.worker that return WorkerObserver

Modifier and Type	Method and Description
WorkerObserver[]	BspServiceWorker.getWorkerObservers()