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Interface NodeReindexService

All Known Implementing Classes:

DefaultNodeReindexService, NoOpNodeReindexService, ZDUAwareNodeReindexService

public interface NodeReindexService

Reindex service that runs to check if other nodes have made index changes

Since:

v6.1

Method Summary

Modifier and Type	Method and Description
boolean	canIndexBeRebuilt() Returns true if the index on the invoking node can be rebuilt from the information contained in the ReplicatedIndexOperationStore.
boolean	hasPendingReindexOperations() Returns true is any other node has completed full reindex or project reindex and this node has not consumed this replicated operation yet (i.e.
boolean	isPaused()
void	pause() Pause the service.
void	resetIndexCount() Reset the index count to the last entry in the NodeIndexOperation table for each node.
void	shutDown() shuts down this service - this must be the last operation performed on this service;
void	start()
Map	totalStats()

Method Detail

start

void start()

pause

void pause()

Pause the service. This will wait for any current execution of the service polling to finish. Can be restarted with start()

isPaused

boolean isPaused()

canIndexBeRebuilt

boolean canIndexBeRebuilt()

Returns true if the index on the invoking node can be rebuilt from the information contained in the ReplicatedIndexOperationStore. If the ReplicatedIndexOperationStore is empty then it is assumed the index can be rebuilt.

Returns:

true if the index can be rebuilt

hasPendingReindexOperations

boolean hasPendingReindexOperations()

Returns true is any other node has completed full reindex or project reindex and this node has not consumed this replicated operation yet (i.e. has not loaded the new index snapshot).

Returns:

true if there's a pending reindex operation to be consumed

resetIndexCount

void resetIndexCount()

Reset the index count to the last entry in the NodeIndexOperation table for each node. This is done to mark the current state before getting a new index copy or performing a full reindex. In effect changes performed on other nodes but not yet replicated to this node will be skipped and not replicated to this node.

It would normally be done immediately following a pause() of the service.

shutDown

void shutDown()

shuts down this service - this must be the last operation performed on this service;

totalStats

Map totalStats()