com.digitalasset.canton.sequencing
SequencerSubscriptionPool
Companion object SequencerSubscriptionPool
trait SequencerSubscriptionPool extends FlagCloseable with NamedLogging
Pool of sequencer subscriptions.
The purpose of this pool is to obtain sequencer connections and start subscriptions on them, trying to maintain a number of live subscriptions sufficient to satisfy the trust requirements.
More precisely, it strives to maintain at least as many subscriptions as the trust threshold. In order to ensure liveness and not run under the trust threshold as soon as a subscription fails, it maintains a few extra subscriptions, defined as the liveness margin. On the other end, it does not maintain as many subscriptions as possible (i.e. all available connections) in order to limit the network traffic.
This pool's health is determined as follows:
- it is healthy if the number of subscriptions is at least the trust threshold + the liveness margin;
- it is degraded if the number of subscriptions is at least the trust threshold, but there are fewer extra subscriptions than the liveness margin;
- it is failing if the number of subscriptions is below the trust threshold.
- Alphabetic
- By Inheritance
- SequencerSubscriptionPool
- NamedLogging
- FlagCloseable
- PerformUnlessClosing
- HasSynchronizeWithReaders
- HasSynchronizeWithClosing
- OnShutdownRunner
- HasRunOnClosing
- HasUnlessClosing
- AutoCloseable
- AnyRef
- Any
- Hide All
- Show All
- Public
- Protected
Abstract Value Members
- abstract def completion: Future[CloseReason]
Future that completes when the sequencer subscription pool closes
- abstract def config: SequencerSubscriptionPoolConfig
Returns the current configuration of the pool.
- abstract def health: SequencerSubscriptionPoolHealth
- abstract def loggerFactory: NamedLoggerFactory
- Attributes
- protected
- Definition Classes
- NamedLogging
- abstract def start()(implicit traceContext: TraceContext): Unit
- abstract def subscriptions: Set[SequencerSubscriptionX[SequencerClientSubscriptionError]]
Return the current active subscriptions in the pool.
- abstract def timeouts: ProcessingTimeout
- Attributes
- protected
- Definition Classes
- FlagCloseable
- abstract def updateConfig(newConfig: SequencerSubscriptionPoolConfig)(implicit traceContext: TraceContext): Unit
Dynamically update the pool configuration.
Concrete Value Members
- final def !=(arg0: Any): Boolean
- Definition Classes
- AnyRef → Any
- final def ##: Int
- Definition Classes
- AnyRef → Any
- final def ==(arg0: Any): Boolean
- Definition Classes
- AnyRef → Any
- def addReader(reader: String)(implicit traceContext: TraceContext): UnlessShutdown[ReaderHandle]
TODO(#16601) Make this method private once PerformUnlessClosing doesn't need it any more
TODO(#16601) Make this method private once PerformUnlessClosing doesn't need it any more
- Attributes
- protected[this]
- Definition Classes
- HasSynchronizeWithReaders
- final def asInstanceOf[T0]: T0
- Definition Classes
- Any
- def clone(): AnyRef
- Attributes
- protected[lang]
- Definition Classes
- AnyRef
- Annotations
- @throws(classOf[java.lang.CloneNotSupportedException]) @IntrinsicCandidate() @native()
- final def close(): Unit
Blocks until all earlier tasks have completed and then prevents further tasks from being run.
Blocks until all earlier tasks have completed and then prevents further tasks from being run.
- Definition Classes
- FlagCloseable → OnShutdownRunner → AutoCloseable
- def closingTimeout: FiniteDuration
- Attributes
- protected
- Definition Classes
- FlagCloseable → PerformUnlessClosing
- final def eq(arg0: AnyRef): Boolean
- Definition Classes
- AnyRef
- def equals(arg0: AnyRef): Boolean
- Definition Classes
- AnyRef → Any
- implicit def errorLoggingContext(implicit traceContext: TraceContext): ErrorLoggingContext
- Attributes
- protected
- Definition Classes
- NamedLogging
- final def getClass(): Class[_ <: AnyRef]
- Definition Classes
- AnyRef → Any
- Annotations
- @IntrinsicCandidate() @native()
- def hashCode(): Int
- Definition Classes
- AnyRef → Any
- Annotations
- @IntrinsicCandidate() @native()
- def isClosing: Boolean
Check whether we're closing.
Check whether we're closing. Susceptible to race conditions; unless you're using this as a flag to the retry lib or you really know what you're doing, prefer
performUnlessClosingand friends.- Definition Classes
- OnShutdownRunner → HasUnlessClosing
- final def isInstanceOf[T0]: Boolean
- Definition Classes
- Any
- def keepTrackOfReaderCallStack: Boolean
Set this to true to get detailed information about all futures that did not complete during shutdown.
Set this to true to get detailed information about all futures that did not complete during shutdown.
- Attributes
- protected[this]
- Definition Classes
- PerformUnlessClosing → HasSynchronizeWithReaders
- def logger: TracedLogger
- Attributes
- protected
- Definition Classes
- NamedLogging
- def nameInternal: String
- Attributes
- protected[this]
- Definition Classes
- PerformUnlessClosing → HasSynchronizeWithReaders
- implicit def namedLoggingContext(implicit traceContext: TraceContext): NamedLoggingContext
- Attributes
- protected
- Definition Classes
- NamedLogging
- final def nbSubscriptions: NonNegativeInt
Return the number of active subscriptions in the pool.
- final def ne(arg0: AnyRef): Boolean
- Definition Classes
- AnyRef
- def noTracingLogger: Logger
- Attributes
- protected
- Definition Classes
- NamedLogging
- final def notify(): Unit
- Definition Classes
- AnyRef
- Annotations
- @IntrinsicCandidate() @native()
- final def notifyAll(): Unit
- Definition Classes
- AnyRef
- Annotations
- @IntrinsicCandidate() @native()
- def onCloseFailure(e: Throwable): Unit
- Attributes
- protected
- Definition Classes
- PerformUnlessClosing
- def onClosed(): Unit
- Attributes
- protected
- Definition Classes
- PerformUnlessClosing
- final def onFirstClose(): Unit
Blocks until all earlier tasks have completed and then prevents further tasks from being run.
Blocks until all earlier tasks have completed and then prevents further tasks from being run.
- Definition Classes
- PerformUnlessClosing → OnShutdownRunner
- def remainingReaders(): Seq[String]
- Attributes
- protected[this]
- Definition Classes
- HasSynchronizeWithReaders
- def removeReader(handle: ReaderHandle): Unit
TODO(#16601) Make this method private once PerformUnlessClosing doesn't need it any more
TODO(#16601) Make this method private once PerformUnlessClosing doesn't need it any more
- Attributes
- protected[this]
- Definition Classes
- HasSynchronizeWithReaders
- def runOnClose(task: RunOnClosing): UnlessShutdown[LifeCycleRegistrationHandle]
Schedules the given task to be run upon closing.
Schedules the given task to be run upon closing.
- returns
An com.digitalasset.canton.lifecycle.UnlessShutdown.Outcome indicates that the task will have been run when the
LifeCycleManager'scloseAsyncmethod completes or whenAutoCloseable'sclosemethod returns, unless the returnedLifeCycleRegistrationHandlewas used to cancel the task or the task has been done beforehand. com.digitalasset.canton.lifecycle.UnlessShutdown.AbortedDueToShutdown if the task is not run due to closing. This always happens if isClosing returns true.
- Definition Classes
- OnShutdownRunner → HasRunOnClosing
- def runOnOrAfterClose(task: RunOnClosing)(implicit traceContext: TraceContext): LifeCycleRegistrationHandle
Register a task to run when closing is initiated, or run it immediately if closing is already ongoing.
Register a task to run when closing is initiated, or run it immediately if closing is already ongoing. Unlike runOnClose, this method does not guarantee that this task will have run by the time the
LifeCycleManager'scloseAsyncmethod completes orAutoCloseable'sclosereturns. This is because the task is run immediately if the component has already been closed.- Definition Classes
- HasRunOnClosing
- final def runOnOrAfterClose_(task: RunOnClosing)(implicit traceContext: TraceContext): Unit
Variant of runOnOrAfterClose that does not return a com.digitalasset.canton.lifecycle.LifeCycleRegistrationHandle.
Variant of runOnOrAfterClose that does not return a com.digitalasset.canton.lifecycle.LifeCycleRegistrationHandle.
- Definition Classes
- HasRunOnClosing
- def runTaskUnlessDone(task: RunOnClosing)(implicit traceContext: TraceContext): Unit
- Attributes
- protected[this]
- Definition Classes
- OnShutdownRunner → HasRunOnClosing
- def synchronizeWithClosing[F[_], A](name: String)(f: => F[A])(implicit traceContext: TraceContext, F: Thereafter[F], A: CanAbortDueToShutdown[F]): F[A]
Runs the computation
fonly if the component is not yet closing.Runs the computation
fonly if the component is not yet closing. If so, the component will delay releasing its resources untilfhas completed (as defined by the com.digitalasset.canton.util.Thereafter instance) or thesynchronizeWithClosingPatiencehas elapsed.DO NOT CALL
this.closeas part off, because it will result in a deadlock. DO NOT PUT retries, especially indefinite ones, insidef.- returns
The computation completes with com.digitalasset.canton.lifecycle.UnlessShutdown.AbortedDueToShutdown if
fhas not run. Otherwise it is the result of runningf.
- Definition Classes
- HasSynchronizeWithClosing
- See also
HasRunOnClosing.isClosing
- def synchronizeWithClosingF[A](name: String)(f: => Future[A])(implicit ec: ExecutionContext, traceContext: TraceContext): FutureUnlessShutdown[A]
Convenience method for synchronizing on
Futures instead ofFutureUnlessShutdowns.Convenience method for synchronizing on
Futures instead ofFutureUnlessShutdowns. Equivalent tosynchronizeWithClosing(name)(FutureUnlessShutdown.outcomeF(f))
- Definition Classes
- PerformUnlessClosing
- def synchronizeWithClosingPatience: FiniteDuration
- Attributes
- protected[this]
- Definition Classes
- PerformUnlessClosing → HasSynchronizeWithReaders
- def synchronizeWithClosingSync[A](name: String)(f: => A)(implicit traceContext: TraceContext): UnlessShutdown[A]
Runs the computation
fonly if the component is not yet closing.Runs the computation
fonly if the component is not yet closing. If so, the component will delay releasing its resources untilfhas finished or thesynchronizeWithClosingPatiencehas elapsed.DO NOT CALL
this.closeas part off, because it will result in a deadlock. DO NOT PUT retries, especially indefinite ones, insidef.- returns
com.digitalasset.canton.lifecycle.UnlessShutdown.AbortedDueToShutdown if
fhas not run.
- Definition Classes
- HasSynchronizeWithClosing
- Annotations
- @SuppressWarnings()
- See also
HasRunOnClosing.isClosing
- def synchronizeWithClosingUS[F[_], A](name: String)(f: => F[A])(implicit traceContext: TraceContext, F: Thereafter[F]): UnlessShutdown[F[A]]
Runs the computation
fonly if the component is not yet closing.Runs the computation
fonly if the component is not yet closing. If so, the component will delay releasing its resources untilfhas completed (as defined by the com.digitalasset.canton.util.Thereafter instance) or thesynchronizeWithClosingPatiencehas elapsed.DO NOT CALL
this.closeas part off, because it will result in a deadlock. DO NOT PUT retries, especially indefinite ones, insidef.- returns
com.digitalasset.canton.lifecycle.UnlessShutdown.AbortedDueToShutdown if
fhas not run. Otherwise the result of runningf.
- Definition Classes
- PerformUnlessClosing → HasSynchronizeWithClosing
- See also
HasRunOnClosing.isClosing
- def synchronizeWithReaders()(implicit traceContext: TraceContext): Boolean
- Attributes
- protected[this]
- Definition Classes
- HasSynchronizeWithReaders
- final def synchronized[T0](arg0: => T0): T0
- Definition Classes
- AnyRef
- def toString(): String
- Definition Classes
- AnyRef → Any
- final def unlessClosing[F[_], A](fa: => F[A])(implicit F: CanAbortDueToShutdown[F]): F[A]
Runs the computation
faunless isClosing returns true.Runs the computation
faunless isClosing returns true.This method does not delay the closing while
fais running, unlike the methods inHasSynchronizeWithClosing. Accordingly, this method is useful for intermittent checks whether the result of the computation is still relevant.- returns
The result of
faor com.digitalasset.canton.lifecycle.UnlessShutdown.AbortedDueToShutdown if isClosing is true
- Definition Classes
- HasUnlessClosing
- Annotations
- @inline()
- final def wait(arg0: Long, arg1: Int): Unit
- Definition Classes
- AnyRef
- Annotations
- @throws(classOf[java.lang.InterruptedException])
- final def wait(arg0: Long): Unit
- Definition Classes
- AnyRef
- Annotations
- @throws(classOf[java.lang.InterruptedException])
- final def wait(): Unit
- Definition Classes
- AnyRef
- Annotations
- @throws(classOf[java.lang.InterruptedException])
- def withReader[F[_], A](name: String)(f: => F[A])(implicit traceContext: TraceContext, F: Thereafter[F]): UnlessShutdown[F[A]]
- Attributes
- protected[this]
- Definition Classes
- HasSynchronizeWithReaders