org.apache.ignite.internal.processors.cache.distributed.dht.preloader

Class GridDhtPreloader

java.lang.Object

org.apache.ignite.internal.processors.cache.GridCachePreloaderAdapter

org.apache.ignite.internal.processors.cache.distributed.dht.preloader.GridDhtPreloader

All Implemented Interfaces:

GridCachePreloader

public class GridDhtPreloader
extends GridCachePreloaderAdapter

DHT cache preloader.

Field Summary

Fields

Modifier and Type	Field and Description
static long	DFLT_PRELOAD_RESEND_TIMEOUT Default preload resend timeout.

Fields inherited from class org.apache.ignite.internal.processors.cache.GridCachePreloaderAdapter

aff, cctx, log, preloadPred

Constructor Summary

Constructors

Constructor and Description
GridDhtPreloader(GridCacheContext<?,?> cctx)

Method Summary

Methods

Modifier and Type	Method and Description
void	addAssignments(GridDhtPreloaderAssignments assignments, boolean forcePreload) Adds assignments to preloader.
void	addDhtAssignmentFetchFuture(AffinityTopologyVersion topVer, GridDhtAssignmentFetchFuture fut)
GridDhtPreloaderAssignments	assign(GridDhtPartitionsExchangeFuture exchFut)
void	forcePreload() Force preload process.
void	onExchangeFutureAdded() Callback by exchange manager when new exchange future is added to worker.
void	onInitialExchangeComplete(Throwable err) Callback by exchange manager when initial partition exchange is complete.
void	onKernalStart() Kernal start callback.
void	onKernalStop() Kernal stop callback.
void	onPartitionEvicted(GridDhtLocalPartition part, boolean updateSeq) Resends partitions on partition evict within configured timeout.
void	preloadPredicate(IgnitePredicate<GridCacheEntryInfo> preloadPred)
void	removeDhtAssignmentFetchFuture(AffinityTopologyVersion topVer, GridDhtAssignmentFetchFuture fut)
GridDhtFuture<Object>	request(Collection<KeyCacheObject> keys, AffinityTopologyVersion topVer) Requests that preloader sends the request for the key.
void	start() Starts preloading.
IgniteInternalFuture<Object>	startFuture()
IgniteInternalFuture<?>	syncFuture()
void	unwindUndeploys() Unwinds undeploys.
void	updateLastExchangeFuture(GridDhtPartitionsExchangeFuture lastFut) Updates last exchange future.

Methods inherited from class org.apache.ignite.internal.processors.cache.GridCachePreloaderAdapter

preloadPredicate, stop

Methods inherited from class java.lang.Object

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

Field Detail

DFLT_PRELOAD_RESEND_TIMEOUT

public static final long DFLT_PRELOAD_RESEND_TIMEOUT

Default preload resend timeout.

See Also:

Constant Field Values

Constructor Detail

GridDhtPreloader

public GridDhtPreloader(GridCacheContext<?,?> cctx)

Parameters:

cctx - Cache context.

Method Detail

start

public void start()

Starts preloading.

Specified by:

start in interface GridCachePreloader

Overrides:

start in class GridCachePreloaderAdapter

onKernalStart

public void onKernalStart()
                   throws IgniteCheckedException

Kernal start callback.

Specified by:

onKernalStart in interface GridCachePreloader

Overrides:

onKernalStart in class GridCachePreloaderAdapter

Throws:

IgniteCheckedException - If failed.

preloadPredicate

public void preloadPredicate(IgnitePredicate<GridCacheEntryInfo> preloadPred)

Specified by:

preloadPredicate in interface GridCachePreloader

Overrides:

preloadPredicate in class GridCachePreloaderAdapter

Parameters:

preloadPred - Preload predicate.

onKernalStop

public void onKernalStop()

Kernal stop callback.

Specified by:

onKernalStop in interface GridCachePreloader

Overrides:

onKernalStop in class GridCachePreloaderAdapter

onInitialExchangeComplete

public void onInitialExchangeComplete(@Nullable
                             Throwable err)

Callback by exchange manager when initial partition exchange is complete.

Specified by:

onInitialExchangeComplete in interface GridCachePreloader

Overrides:

onInitialExchangeComplete in class GridCachePreloaderAdapter

Parameters:

err - Error, if any happened on initial exchange.

onExchangeFutureAdded

public void onExchangeFutureAdded()

Callback by exchange manager when new exchange future is added to worker.

Specified by:

onExchangeFutureAdded in interface GridCachePreloader

Overrides:

onExchangeFutureAdded in class GridCachePreloaderAdapter

updateLastExchangeFuture

public void updateLastExchangeFuture(GridDhtPartitionsExchangeFuture lastFut)

Updates last exchange future.

Specified by:

updateLastExchangeFuture in interface GridCachePreloader

Overrides:

updateLastExchangeFuture in class GridCachePreloaderAdapter

Parameters:

lastFut - Last future.

assign

public GridDhtPreloaderAssignments assign(GridDhtPartitionsExchangeFuture exchFut)

Specified by:

assign in interface GridCachePreloader

Overrides:

assign in class GridCachePreloaderAdapter

Parameters:

exchFut - Exchange future to assign.

Returns:

Assignments.

addAssignments

public void addAssignments(GridDhtPreloaderAssignments assignments,
                  boolean forcePreload)

Adds assignments to preloader.

Specified by:

addAssignments in interface GridCachePreloader

Overrides:

addAssignments in class GridCachePreloaderAdapter

Parameters:

assignments - Assignments to add.

forcePreload - Force preload flag.

startFuture

public IgniteInternalFuture<Object> startFuture()

Description copied from class: GridCachePreloaderAdapter

Specified by:

startFuture in interface GridCachePreloader

Overrides:

startFuture in class GridCachePreloaderAdapter

Returns:

Start future.

syncFuture

public IgniteInternalFuture<?> syncFuture()

Specified by:

syncFuture in interface GridCachePreloader

Overrides:

syncFuture in class GridCachePreloaderAdapter

Returns:

Future which will complete when preloading is finished.

addDhtAssignmentFetchFuture

public void addDhtAssignmentFetchFuture(AffinityTopologyVersion topVer,
                               GridDhtAssignmentFetchFuture fut)

Parameters:

topVer - Requested topology version.

fut - Future to add.

removeDhtAssignmentFetchFuture

public void removeDhtAssignmentFetchFuture(AffinityTopologyVersion topVer,
                                  GridDhtAssignmentFetchFuture fut)

Parameters:

topVer - Requested topology version.

fut - Future to remove.

onPartitionEvicted

public void onPartitionEvicted(GridDhtLocalPartition part,
                      boolean updateSeq)

Resends partitions on partition evict within configured timeout.

Parameters:

part - Evicted partition.

updateSeq - Update sequence.

request

public GridDhtFuture<Object> request(Collection<KeyCacheObject> keys,
                            AffinityTopologyVersion topVer)

Description copied from class: GridCachePreloaderAdapter

Requests that preloader sends the request for the key.

Specified by:

request in interface GridCachePreloader

Overrides:

request in class GridCachePreloaderAdapter

Parameters:

keys - Keys to request.

topVer - Topology version, -1 if not required.

Returns:

Future for request.

forcePreload

public void forcePreload()

Force preload process.

Specified by:

forcePreload in interface GridCachePreloader

Overrides:

forcePreload in class GridCachePreloaderAdapter

unwindUndeploys

public void unwindUndeploys()

Unwinds undeploys.

Specified by:

unwindUndeploys in interface GridCachePreloader

Overrides:

unwindUndeploys in class GridCachePreloaderAdapter