org.apache.ignite.internal.processors.query.aware

Class IndexBuildStatusStorage

java.lang.Object

org.apache.ignite.internal.processors.query.aware.IndexBuildStatusStorage

All Implemented Interfaces:

CheckpointListener, MetastorageLifecycleListener

public class IndexBuildStatusStorage
extends Object
implements MetastorageLifecycleListener, CheckpointListener

Holder of up-to-date information about cache index building operations (rebuilding indexes, building new indexes). Avoids index inconsistency when operations have completed, a checkpoint has not occurred, and the node has been restarted.

For rebuild indexes, use onStartRebuildIndexes(org.apache.ignite.internal.processors.cache.GridCacheContext, boolean) and onFinishRebuildIndexes(java.lang.String). For build new indexes, use onStartBuildNewIndex(org.apache.ignite.internal.processors.cache.GridCacheContext) and onFinishBuildNewIndex(java.lang.String). Use rebuildCompleted(java.lang.String) to check that the index rebuild is complete.

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.ignite.internal.processors.cache.persistence.checkpoint.CheckpointListener

CheckpointListener.Context

Field Summary

Fields

Modifier and Type	Field and Description
static String	KEY_PREFIX Key prefix for the MetaStorage.

Constructor Summary

Constructors

Constructor and Description
IndexBuildStatusStorage(GridKernalContext ctx) Constructor.

Method Summary

Modifier and Type	Method and Description
void	afterCheckpointEnd(CheckpointListener.Context ctx) Do some actions after checkpoint end.
void	beforeCheckpointBegin(CheckpointListener.Context ctx) Do some actions before checkpoint write lock.
void	markIndexRecreate(GridCacheContext<?,?> cacheCtx) Mark that index.bin recreate in progress.
void	onCacheKernalStart() Callback on start of GridCacheProcessor.
void	onCheckpointBegin(CheckpointListener.Context ctx)
void	onFinishBuildNewIndex(String cacheName) Callback on the finish of building a new cache index.
void	onFinishRebuildIndexes(String cacheName) Callback on the finish of rebuilding cache indexes.
void	onMarkCheckpointBegin(CheckpointListener.Context ctx)
void	onReadyForRead(ReadOnlyMetastorage metastorage) Is called when metastorage is made ready for read-only operations very early on node startup phase.
void	onReadyForReadWrite(ReadWriteMetastorage metastorage) Fully functional metastore capable of performing reading and writing operations.
void	onStartBuildNewIndex(GridCacheContext cacheCtx) Callback on the start of building a new cache index.
void	onStartRebuildIndexes(GridCacheContext cacheCtx, boolean recreate) Callback on the start of rebuilding cache indexes.
boolean	rebuildCompleted(String cacheName) Check if rebuilding of indexes for the cache has been completed.
boolean	recreateCompleted(String cacheName) Check if index.bin recreating for the cache has been completed.
void	start() Callback on start of GridQueryProcessor.
void	stop() Callback on kernel stop.

Methods inherited from class java.lang.Object

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

Field Detail

KEY_PREFIX

public static final String KEY_PREFIX

Key prefix for the MetaStorage.

See Also:

Constant Field Values

Constructor Detail

IndexBuildStatusStorage

public IndexBuildStatusStorage(GridKernalContext ctx)

Constructor.

Parameters:

ctx - Kernal context.

Method Detail

start

public void start()

Callback on start of GridQueryProcessor.

onCacheKernalStart

public void onCacheKernalStart()

Callback on start of GridCacheProcessor.

stop

public void stop()

Callback on kernel stop.

onStartRebuildIndexes

public void onStartRebuildIndexes(GridCacheContext cacheCtx,
                                  boolean recreate)

Callback on the start of rebuilding cache indexes.

Registers the start of rebuilding cache indexes, for persistent cache writes a entry to the MetaStorage so that if a failure occurs, the indexes are automatically rebuilt.

Parameters:

cacheCtx - Cache context.

recreate - True if index.bin recreating, otherwise building a new index.

See Also:

onFinishRebuildIndexes(java.lang.String)

onStartBuildNewIndex

public void onStartBuildNewIndex(GridCacheContext cacheCtx)

Callback on the start of building a new cache index.

Registers the start of building a new cache index, for persistent cache writes a entry to the MetaStorage so that if a failure occurs, the indexes are automatically rebuilt.

Parameters:

cacheCtx - Cache context.

See Also:

onFinishBuildNewIndex(java.lang.String)

markIndexRecreate

public void markIndexRecreate(GridCacheContext<?,?> cacheCtx)

Mark that index.bin recreate in progress.

onFinishRebuildIndexes

public void onFinishRebuildIndexes(String cacheName)

Callback on the finish of rebuilding cache indexes.

Registers the finish of rebuilding cache indexes, if all operations have been completed for persistent cache, then the entry will be deleted from the MetaStorage at the end of the checkpoint, otherwise for the in-memory cache the status will be deleted immediately.

Parameters:

cacheName - Cache name.

See Also:

onStartRebuildIndexes(org.apache.ignite.internal.processors.cache.GridCacheContext, boolean)

onFinishBuildNewIndex

public void onFinishBuildNewIndex(String cacheName)

Callback on the finish of building a new cache index.

Registers the finish of building a new cache index, if all operations have been completed for persistent cache, then the entry will be deleted from the MetaStorage at the end of the checkpoint, otherwise for the in-memory cache the status will be deleted immediately.

Parameters:

cacheName - Cache name.

See Also:

onStartBuildNewIndex(org.apache.ignite.internal.processors.cache.GridCacheContext)

rebuildCompleted

public boolean rebuildCompleted(String cacheName)

Check if rebuilding of indexes for the cache has been completed.

Parameters:

cacheName - Cache name.

Returns:

True if completed.

recreateCompleted

public boolean recreateCompleted(String cacheName)

Check if index.bin recreating for the cache has been completed.

Parameters:

cacheName - Cache name.

Returns:

True if index.bin recreate completed.

onReadyForReadWrite

public void onReadyForReadWrite(ReadWriteMetastorage metastorage)

Fully functional metastore capable of performing reading and writing operations. Components interested in using metastore are allowed to keep reference passed into the method in their fields.

Specified by:

onReadyForReadWrite in interface MetastorageLifecycleListener

Parameters:

metastorage - Fully functional meta storage.

onReadyForRead

public void onReadyForRead(ReadOnlyMetastorage metastorage)

Is called when metastorage is made ready for read-only operations very early on node startup phase. Reference for read-only metastorage should be used only within this method and shouldn't be stored to any field.

Specified by:

onReadyForRead in interface MetastorageLifecycleListener

Parameters:

metastorage - Read-only meta storage.

onMarkCheckpointBegin

public void onMarkCheckpointBegin(CheckpointListener.Context ctx)

Specified by:

onMarkCheckpointBegin in interface CheckpointListener

onCheckpointBegin

public void onCheckpointBegin(CheckpointListener.Context ctx)

Specified by:

onCheckpointBegin in interface CheckpointListener

beforeCheckpointBegin

public void beforeCheckpointBegin(CheckpointListener.Context ctx)

Do some actions before checkpoint write lock.

Specified by:

beforeCheckpointBegin in interface CheckpointListener

afterCheckpointEnd

public void afterCheckpointEnd(CheckpointListener.Context ctx)

Do some actions after checkpoint end.

Specified by:

afterCheckpointEnd in interface CheckpointListener