Package org.apache.flink.runtime.blocklist

Interface BlocklistHandler

All Known Implementing Classes:

DefaultBlocklistHandler, NoOpBlocklistHandler

public interface BlocklistHandler

This class is responsible for managing all BlockedNodes and performing them on resources.

Nested Class Summary

Nested Classes

Modifier and Type	Interface	Description
static interface	BlocklistHandler.Factory	Factory to instantiate BlocklistHandler.

Method Summary

Modifier and Type	Method	Description
void	addNewBlockedNodes(Collection<BlockedNode> newNodes)	Add new blocked node records.
void	deregisterBlocklistListener(BlocklistListener blocklistListener)	Deregister a blocklist listener.
Set<String>	getAllBlockedNodeIds()	Get all blocked node ids.
boolean	isBlockedTaskManager(ResourceID taskManagerId)	Returns whether the given task manager is blocked (located on blocked nodes).
void	registerBlocklistListener(BlocklistListener blocklistListener)	Register a new blocklist listener.

Method Details

addNewBlockedNodes

void addNewBlockedNodes(Collection<BlockedNode> newNodes)

Add new blocked node records. If a node (identified by node id) already exists, the newly added one will be merged with the existing one.

Parameters:

newNodes - the new blocked node records

isBlockedTaskManager

boolean isBlockedTaskManager(ResourceID taskManagerId)

Returns whether the given task manager is blocked (located on blocked nodes).

Parameters:

taskManagerId - ID of the task manager to query

Returns:

true if the given task manager is blocked, otherwise false

getAllBlockedNodeIds

Set<String> getAllBlockedNodeIds()

Get all blocked node ids.

Returns:

a set containing all blocked node ids

registerBlocklistListener

void registerBlocklistListener(BlocklistListener blocklistListener)

Register a new blocklist listener.

Parameters:

blocklistListener - the newly registered listener

deregisterBlocklistListener

void deregisterBlocklistListener(BlocklistListener blocklistListener)

Deregister a blocklist listener.

Parameters:

blocklistListener - the listener to deregister