Package com.linkedin.venice.controller

Class TerminalStateTopicCheckerForParentController

java.lang.Object

com.linkedin.venice.controller.TerminalStateTopicCheckerForParentController

All Implemented Interfaces:

Closeable, AutoCloseable, Runnable

public class TerminalStateTopicCheckerForParentController
extends Object
implements Runnable, Closeable

A task that periodically polls the job state for existing version topics in the parent fabric. This is to make sure topics in the parent fabric are cleaned up in a timely manner once they reach terminal states in all child fabrics. This is to prevent out-of-order issue when compaction is enabled and MM rewind old messages from parent to child fabrics during restart. Topic cleanup is part of job status polling because it's only safe to delete the VT in parent fabric once the job reaches terminal state in all child fabrics.

Constructor Summary

Constructors

Constructor	Description
TerminalStateTopicCheckerForParentController(VeniceParentHelixAdmin parentController, HelixReadOnlyStoreConfigRepository storeConfigRepository, long checkDelayInMs)

Method Summary

Modifier and Type	Method	Description
void	close()	Causes TerminalStateTopicCheckerForParentController task to stop executing.
void	run()

Methods inherited from class java.lang.Object

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

Constructor Details

TerminalStateTopicCheckerForParentController

public TerminalStateTopicCheckerForParentController(VeniceParentHelixAdmin parentController,
 HelixReadOnlyStoreConfigRepository storeConfigRepository,
 long checkDelayInMs)

Method Details

close

public void close()

Causes TerminalStateTopicCheckerForParentController task to stop executing.

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

run

public void run()

Specified by:

run in interface Runnable