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add maxFixedBufferSize materializer setting #19702

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This commit is contained in:
Roland Kuhn 2016-02-07 14:54:48 +01:00
parent f3073b89e0
commit d0e6f46f14
13 changed files with 306 additions and 223 deletions
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30
akka-stream/src/main/scala/akka/stream/ActorMaterializer.scala
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@ -208,10 +208,11 @@ object ActorMaterializerSettings {
debugLogging: Boolean,
outputBurstLimit: Int,
fuzzingMode: Boolean,
autoFusing: Boolean) =
autoFusing: Boolean,
maxFixedBufferSize: Int) =
new ActorMaterializerSettings(
initialInputBufferSize, maxInputBufferSize, dispatcher, supervisionDecider, subscriptionTimeoutSettings, debugLogging,
outputBurstLimit, fuzzingMode, autoFusing)
outputBurstLimit, fuzzingMode, autoFusing, maxFixedBufferSize)
/**
* Create [[ActorMaterializerSettings]] from the settings of an [[akka.actor.ActorSystem]] (Scala).
@ -232,7 +233,8 @@ object ActorMaterializerSettings {
debugLogging = config.getBoolean("debug-logging"),
outputBurstLimit = config.getInt("output-burst-limit"),
fuzzingMode = config.getBoolean("debug.fuzzing-mode"),
autoFusing = config.getBoolean("auto-fusing"))
autoFusing = config.getBoolean("auto-fusing"),
maxFixedBufferSize = config.getInt("max-fixed-buffer-size"))
/**
* Create [[ActorMaterializerSettings]] from individual settings (Java).
@ -246,10 +248,11 @@ object ActorMaterializerSettings {
debugLogging: Boolean,
outputBurstLimit: Int,
fuzzingMode: Boolean,
autoFusing: Boolean) =
autoFusing: Boolean,
maxFixedBufferSize: Int) =
new ActorMaterializerSettings(
initialInputBufferSize, maxInputBufferSize, dispatcher, supervisionDecider, subscriptionTimeoutSettings, debugLogging,
outputBurstLimit, fuzzingMode, autoFusing)
outputBurstLimit, fuzzingMode, autoFusing, maxFixedBufferSize)
/**
* Create [[ActorMaterializerSettings]] from the settings of an [[akka.actor.ActorSystem]] (Java).
@ -278,7 +281,8 @@ final class ActorMaterializerSettings(
val debugLogging: Boolean,
val outputBurstLimit: Int,
val fuzzingMode: Boolean,
val autoFusing: Boolean) {
val autoFusing: Boolean,
val maxFixedBufferSize: Int) {
require(initialInputBufferSize > 0, "initialInputBufferSize must be > 0")
@ -294,10 +298,11 @@ final class ActorMaterializerSettings(
debugLogging: Boolean = this.debugLogging,
outputBurstLimit: Int = this.outputBurstLimit,
fuzzingMode: Boolean = this.fuzzingMode,
autoFusing: Boolean = this.autoFusing) =
autoFusing: Boolean = this.autoFusing,
maxFixedBufferSize: Int = this.maxFixedBufferSize) =
new ActorMaterializerSettings(
initialInputBufferSize, maxInputBufferSize, dispatcher, supervisionDecider, subscriptionTimeoutSettings, debugLogging,
outputBurstLimit, fuzzingMode, autoFusing)
outputBurstLimit, fuzzingMode, autoFusing, maxFixedBufferSize)
/**
* Each asynchronous piece of a materialized stream topology is executed by one Actor
@ -377,6 +382,15 @@ final class ActorMaterializerSettings(
if (enable == this.autoFusing) this
else copy(autoFusing = enable)
/**
* Configure the maximum buffer size for which a FixedSizeBuffer will be preallocated.
* This defaults to a large value because it is usually better to fail early when
* system memory is not sufficient to hold the buffer.
*/
def withMaxFixedBufferSize(size: Int): ActorMaterializerSettings =
if (size == this.maxFixedBufferSize) this
else copy(maxFixedBufferSize = size)
/**
* Leaked publishers and subscribers are cleaned up when they are not used within a given
* deadline, configured by [[StreamSubscriptionTimeoutSettings]].