Movatterモバイル変換

46interfaceILBFactoryextendsIConnectionProvider {

48publicconstSHUTDOWN_NORMAL = 0;

50publicconstSHUTDOWN_NO_CHRONPROT = 1;

53publicconstCLUSTER_MAIN_DEFAULT ='DEFAULT';

88publicfunction__construct( array $conf );

97publicfunctiondestroy();

103publicfunctionautoReconfigure(): void;

112publicfunctiongetLocalDomainID(): string;

124publicfunctionredefineLocalDomain( $domain );

138publicfunctiongetLoadBalancer( $domain =false ):ILoadBalancer;

158publicfunctionnewMainLB( $domain =false ):ILoadBalancerForOwner;

171publicfunctiongetMainLB( $domain =false ):ILoadBalancer;

188publicfunctionnewExternalLB( $cluster ):ILoadBalancerForOwner;

199publicfunctiongetExternalLB( $cluster ):ILoadBalancer;

211publicfunctiongetAllMainLBs(): array;

221publicfunctiongetAllExternalLBs(): array;

229publicfunctiongetAllLBs();

239publicfunctionshutdown(

240 $flags = self::SHUTDOWN_NORMAL,

241 ?callable $workCallback =null,

242 &$cpIndex =null,

243 &$cpClientId =null

244 );

256publicfunctionflushReplicaSnapshots( $fname = __METHOD__ );

283publicfunctionbeginPrimaryChanges( $fname = __METHOD__ );

300publicfunctioncommitPrimaryChanges( $fname = __METHOD__,int $maxWriteDuration = 0 );

310publicfunctionrollbackPrimaryChanges( $fname = __METHOD__ );

323publicfunctionflushPrimarySessions( $fname = __METHOD__ );

331publicfunctionhasTransactionRound();

341publicfunctionisReadyForRoundOperations();

351publicfunctionhasPrimaryChanges();

360publicfunctionlaggedReplicaUsed();

370publicfunctionhasOrMadeRecentPrimaryChanges( $age =null );

393publicfunctionwaitForReplication( array $opts = [] );

404publicfunctionsetWaitForReplicationListener( $name, ?callable $callback =null );

411publicfunctiondisableChronologyProtection();

419publicfunctionsetLocalDomainPrefix( $prefix );

426publicfunctioncloseAll( $fname = __METHOD__ );

431publicfunctionsetAgentName( $agent );

439publicfunctionhasStreamingReplicaServers();

448publicfunctionsetDefaultReplicationWaitTimeout( $seconds );

463publicfunctionsetTableAliases( array $aliases );

473publicfunctionsetDomainAliases( array $aliases );

481publicfunctiongetTransactionProfiler():TransactionProfiler;

497publicfunctiongetAutoCommitPrimaryConnection( $domain =false ):IDatabase;

498}

Detect high-contention DB queries via profiling calls.

Provide primary and replica IDatabase connections.

Interface to a relational database.

Manager of ILoadBalancer objects and, indirectly, IDatabase connections.

getLocalDomainID()

Get the local (and default) database domain ID of connection handles.

autoReconfigure()

Reload the configuration if necessary.

redefineLocalDomain( $domain)

Close all connections and redefine the local database domain.

beginPrimaryChanges( $fname=__METHOD__)

Wrap subsequent queries for all transaction round aware primary connections in a transaction.

getAllExternalLBs()

Get the tracked load balancer instances for all external clusters.

setTableAliases(array $aliases)

Make certain table names use their own database, schema, and table prefix when passed into SQL querie...

newMainLB( $domain=false)

Create a new load balancer instance for the main cluster that handles the given domain.

setLocalDomainPrefix( $prefix)

Set a new table prefix for the existing local domain ID for testing.

commitPrimaryChanges( $fname=__METHOD__, int $maxWriteDuration=0)

Commit all primary connection transactions and flush all replica connection transactions.

hasPrimaryChanges()

Determine if any primary connection has pending changes.

getLoadBalancer( $domain=false)

Get the tracked load balancer instance for a given domain.

waitForReplication(array $opts=[])

Waits for the replica database server to catch up to the current primary position.

rollbackPrimaryChanges( $fname=__METHOD__)

Rollback all primary connection transactions and flush all replica connection transactions.

closeAll( $fname=__METHOD__)

Close all connections on instantiated tracked load balancer instances.

flushPrimarySessions( $fname=__METHOD__)

Release important session-level state (named lock, table locks) as post-rollback cleanup.

__construct(array $conf)

Sub-classes may extend the required keys in $conf with additional parameters.

destroy()

Close all connections and make further attempts to open connections result in DBAccessError.

laggedReplicaUsed()

Determine if any lagged replica database server connection was used.

getAllLBs()

Get all tracked load balancer instances (generator)

setDomainAliases(array $aliases)

Convert certain database domains to alternative ones.

getExternalLB( $cluster)

Get the tracked load balancer instance for an external cluster.

getMainLB( $domain=false)

Get the tracked load balancer instance for the main cluster that handles the given domain.

disableChronologyProtection()

Disable the ChronologyProtector on all instantiated tracked load balancer instances.

setDefaultReplicationWaitTimeout( $seconds)

Set the default timeout for replication wait checks.

getAutoCommitPrimaryConnection( $domain=false)

Like IConnectionProvider::getPrimaryDatabase() but with AUTOCOMMIT mode.

const SHUTDOWN_NO_CHRONPROT

Do not save "session consistency" DB replication positions.

hasTransactionRound()

Check if an explicit transaction round is active.

const SHUTDOWN_NORMAL

Idiom for "no special shutdown flags".

hasStreamingReplicaServers()

Whether it has streaming replica servers.

getAllMainLBs()

Get the tracked load balancer instances for all main clusters.

shutdown( $flags=self::SHUTDOWN_NORMAL, ?callable $workCallback=null, &$cpIndex=null, &$cpClientId=null)

Prepare all instantiated tracked load balancer instances for shutdown.

setAgentName( $agent)

setWaitForReplicationListener( $name, ?callable $callback=null)

Add a callback to be run in every call to waitForReplication() prior to any waiting.

const CLUSTER_MAIN_DEFAULT

Default main cluster name (do not change this)

getTransactionProfiler()

Get the TransactionProfiler used by this instance.

hasOrMadeRecentPrimaryChanges( $age=null)

Determine if any primary connection has pending/written changes from this request.

newExternalLB( $cluster)

Create a new load balancer instance for an external cluster.

isReadyForRoundOperations()

Check if transaction rounds can be started, committed, or rolled back right now.

flushReplicaSnapshots( $fname=__METHOD__)

Commit all replica database server transactions, clearing any point-in-time view snapshots.

Internal interface for load balancer instances exposed to their owner.

This class is a delegate to ILBFactory for a given database cluster.