Package com.linkedin.venice.controller

Class UnusedValueSchemaCleanupService

java.lang.Object

com.linkedin.venice.service.AbstractVeniceService

com.linkedin.venice.controller.UnusedValueSchemaCleanupService

All Implemented Interfaces:

Closeable, AutoCloseable

public class UnusedValueSchemaCleanupService
extends AbstractVeniceService

This service runs in the parent controller to delete historical unused value schemas. Currently, it supports deletion of unused value schemas only for batch stores.

Nested Class Summary

Nested classes/interfaces inherited from class com.linkedin.venice.service.AbstractVeniceService

AbstractVeniceService.ServiceState

Field Summary

Fields

Modifier and Type	Field	Description
final int	minSchemaCountToKeep

Fields inherited from class com.linkedin.venice.service.AbstractVeniceService

logger, serviceState

Method Summary

Modifier and Type	Method	Description
boolean	startInner()
void	stopInner()

Methods inherited from class com.linkedin.venice.service.AbstractVeniceService

close, getName, isRunning, start, stop

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

minSchemaCountToKeep

public final int minSchemaCountToKeep

Method Details

startInner

public boolean startInner()
                   throws Exception

Specified by:

startInner in class AbstractVeniceService

Returns:

true if the service is completely started, false if it is still starting asynchronously (in this case, it is the implementer's responsibility to set AbstractVeniceService.serviceState to AbstractVeniceService.ServiceState.STARTED upon completion of the async work).

Throws:

Exception

stopInner

public void stopInner()
               throws Exception

Specified by:

stopInner in class AbstractVeniceService

Throws:

Exception