Package org.apache.solr.cloud.autoscaling

Class InactiveMarkersPlanAction

java.lang.Object

org.apache.solr.cloud.autoscaling.TriggerActionBase

org.apache.solr.cloud.autoscaling.InactiveMarkersPlanAction

All Implemented Interfaces:

Closeable, AutoCloseable, TriggerAction

public class InactiveMarkersPlanAction
extends TriggerActionBase

This plan simply removes nodeAdded and nodeLost markers from Zookeeper if their TTL has expired. These markers are used by NodeAddedTrigger and NodeLostTrigger to ensure fault tolerance in case of Overseer leader crash.

Field Summary

Fields

Modifier and Type	Field	Description
static int	DEFAULT_TTL_SECONDS
static String	TTL_PROP

Fields inherited from class org.apache.solr.cloud.autoscaling.TriggerActionBase

cloudManager, loader, properties, requiredProperties, validProperties

Constructor Summary

Constructors

Constructor	Description
InactiveMarkersPlanAction()

Method Summary

Modifier and Type	Method	Description
void	configure(SolrResourceLoader loader, SolrCloudManager cloudManager, Map<String,Object> properties)	Called when action is created but before it's initialized and used.
void	process(TriggerEvent event, ActionContext context)

Methods inherited from class org.apache.solr.cloud.autoscaling.TriggerActionBase

close, getName, init

Methods inherited from class java.lang.Object

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

Field Detail

TTL_PROP

public static final String TTL_PROP

See Also:

Constant Field Values

DEFAULT_TTL_SECONDS

public static final int DEFAULT_TTL_SECONDS

See Also:

Constant Field Values

Constructor Detail

InactiveMarkersPlanAction

public InactiveMarkersPlanAction()

Method Detail

configure

public void configure(SolrResourceLoader loader,
                      SolrCloudManager cloudManager,
                      Map<String,Object> properties)
               throws TriggerValidationException

Description copied from interface: TriggerAction

Called when action is created but before it's initialized and used. This method should also verify that the configuration parameters are correct. It may be called multiple times.

Specified by:

configure in interface TriggerAction

Overrides:

configure in class TriggerActionBase

Parameters:

loader - loader to use for instantiating sub-components

cloudManager - current instance of SolrCloudManager

properties - configuration properties

Throws:

TriggerValidationException - contains details of invalid configuration parameters.

process

public void process(TriggerEvent event,
                    ActionContext context)
             throws Exception

Throws:

Exception