Wcf System.InsufficientMemoryException.未能分配536870912字节的托管内存缓冲区
Wcf System.InsufficientMemoryException.未能分配536870912字节的托管内存缓冲区
提问于 2010-06-29 08:42:18
我有一个WCF服务方法，它返回一个大小约为2MB的大型byte[]数组。但是，当我从WcfTestClient运行该方法时，我会得到以下异常。
System.InsufficientMemoryException
Failed to allocate a managed memory buffer of 536870912 bytes. The amount of available memory may be low.我在谷歌上搜索过，人们似乎也有这个问题，但我很难找到任何解决方案，也很难找到真正的原因，为什么它一开始就试图创造一个巨大的缓冲区？
下面是我的配置设置。我已经设置了maxItemsInObjectGraph="2147483647“，否则它就会抛出异常。其余的我想都很简单。
服务器
<system.serviceModel>
<services>
<service behaviorConfiguration="Wcf.ServiceBehavior"
name="Wcf.WcfService">
<endpoint address="" binding="wsHttpBinding" contract="Wcf.IWcfService">
<identity>
<dns value="localhost" />
</identity>
</endpoint>
<endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange" />
</service>
</services>
<behaviors>
<serviceBehaviors>
<behavior name="Wcf.ServiceBehavior">
<serviceMetadata httpGetEnabled="true" />
<serviceDebug includeExceptionDetailInFaults="true" />
<dataContractSerializer maxItemsInObjectGraph="2147483647" />
</behavior>
</serviceBehaviors>
</behaviors>
<diagnostics>
<messageLogging maxMessagesToLog="30000"
logEntireMessage="true"
logMessagesAtServiceLevel="true"
logMalformedMessages="true"
logMessagesAtTransportLevel="true">
</messageLogging>
</diagnostics>
</system.serviceModel>WcfTestClient Config这是默认的配置文件，并加载了WcfTestClient
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<system.serviceModel>
<bindings>
<wsHttpBinding>
<binding name="WSHttpBinding_IWcfService" closeTimeout="00:01:00"
openTimeout="00:01:00" receiveTimeout="00:10:00" sendTimeout="00:01:00"
bypassProxyOnLocal="false" transactionFlow="false" hostNameComparisonMode="StrongWildcard"
maxBufferPoolSize="524288" maxReceivedMessageSize="65536"
messageEncoding="Text" textEncoding="utf-8" useDefaultWebProxy="true"
allowCookies="false">
<readerQuotas maxDepth="32" maxStringContentLength="8192" maxArrayLength="16384"
maxBytesPerRead="4096" maxNameTableCharCount="16384" />
<reliableSession ordered="true" inactivityTimeout="00:10:00"
enabled="false" />
<security mode="Message">
<transport clientCredentialType="Windows" proxyCredentialType="None"
realm="" />
<message clientCredentialType="Windows" negotiateServiceCredential="true"
algorithmSuite="Default" />
</security>
</binding>
</wsHttpBinding>
</bindings>
<client>
<endpoint address="http://localhost:4151/Service1.svc" binding="wsHttpBinding"
bindingConfiguration="WSHttpBinding_IWcfService" contract="IWcfService"
name="WSHttpBinding_IWcfService">
<identity>
<dns value="localhost" />
</identity>
</endpoint>
</client>
</system.serviceModel>
</configuration>下面是异常堆栈跟踪
<E2ETraceEvent xmlns="http://schemas.microsoft.com/2004/06/E2ETraceEvent">
<System xmlns="http://schemas.microsoft.com/2004/06/windows/eventlog/system">
<EventID>131075</EventID>
<Type>3</Type>
<SubType Name="Error">0</SubType>
<Level>2</Level>
<TimeCreated SystemTime="2010-06-29T09:18:23.9616589Z" />
<Source Name="System.ServiceModel" />
<Correlation ActivityID="{7870ff09-e268-4e9d-a692-389fd03db1aa}" />
<Execution ProcessName="WebDev.WebServer20" ProcessID="4812"
ThreadID="17" />
<Channel />
<Computer>PC-008915</Computer>
</System>
<ApplicationData>
<TraceData>
<DataItem>
<TraceRecord xmlns="http://schemas.microsoft.com/2004/10/E2ETraceEvent/TraceRecord"
Severity="Error">
<TraceIdentifier>
http://msdn.microsoft.com/en-GB/library/System.ServiceModel.Diagnostics.ThrowingException.aspx</TraceIdentifier>
<Description>Throwing an exception.</Description>
<AppDomain>5ab4f443-1-129222741421051645</AppDomain>
<Exception>
<ExceptionType>System.InsufficientMemoryException,
mscorlib, Version=2.0.0.0, Culture=neutral,
PublicKeyToken=b77a5c561934e089</ExceptionType>
<Message>Failed to allocate a managed memory buffer of
536870912 bytes. The amount of available memory may be
low.</Message>
<StackTrace>at
System.ServiceModel.Diagnostics.Utility.AllocateByteArray(Int32
size) at
System.ServiceModel.Channels.BufferManager.GCBufferManager.TakeBuffer(Int32
bufferSize) at
System.ServiceModel.Channels.BufferedOutputStream.AllocNextChunk(Int32
minimumChunkSize) at
System.ServiceModel.Channels.BufferedOutputStream.WriteCore(Byte[]
buffer, Int32 offset, Int32 size) at
System.ServiceModel.Channels.BufferedOutputStream.Write(Byte[]
buffer, Int32 offset, Int32 size) at
System.Xml.XmlStreamNodeWriter.FlushBuffer() at
System.Xml.XmlStreamNodeWriter.GetBuffer(Int32 count,
Int32& offset) at
System.Xml.XmlStreamNodeWriter.UnsafeWriteUTF8Chars(Char*
chars, Int32 charCount) at
System.Xml.XmlStreamNodeWriter.WriteUTF8Chars(String
value) at
System.Xml.XmlUTF8NodeWriter.WriteEndElement(String
prefix, String localName) at
System.Xml.XmlSigningNodeWriter.WriteEndElement(String
prefix, String localName) at
System.Xml.XmlBaseWriter.WriteEndElement() at
System.Runtime.Serialization.XmlObjectSerializerWriteContext.WriteString(XmlWriterDelegator
xmlWriter, String value, XmlDictionaryString name,
XmlDictionaryString ns) at
WritePropertyDtoToXml(XmlWriterDelegator , Object ,
XmlObjectSerializerWriteContext , ClassDataContract )
at
System.Runtime.Serialization.ClassDataContract.WriteXmlValue(XmlWriterDelegator
xmlWriter, Object obj, XmlObjectSerializerWriteContext
context) at
System.Runtime.Serialization.XmlObjectSerializerWriteContext.WriteDataContractValue(DataContract
dataContract, XmlWriterDelegator xmlWriter, Object obj,
RuntimeTypeHandle declaredTypeHandle) at
System.Runtime.Serialization.XmlObjectSerializerWriteContext.SerializeWithoutXsiType(DataContract
dataContract, XmlWriterDelegator xmlWriter, Object obj,
RuntimeTypeHandle declaredTypeHandle) at
System.Runtime.Serialization.XmlObjectSerializerWriteContext.InternalSerialize(XmlWriterDelegator
xmlWriter, Object obj, Boolean isDeclaredType, Boolean
writeXsiType, Int32 declaredTypeID, RuntimeTypeHandle
declaredTypeHandle) at
WriteArrayOfPropertyDtoToXml(XmlWriterDelegator ,
Object , XmlObjectSerializerWriteContext ,
CollectionDataContract ) at
System.Runtime.Serialization.CollectionDataContract.WriteXmlValue(XmlWriterDelegator
xmlWriter, Object obj, XmlObjectSerializerWriteContext
context) at
System.Runtime.Serialization.XmlObjectSerializerWriteContext.WriteDataContractValue(DataContract
dataContract, XmlWriterDelegator xmlWriter, Object obj,
RuntimeTypeHandle declaredTypeHandle) at
System.Runtime.Serialization.XmlObjectSerializerWriteContext.SerializeWithoutXsiType(DataContract
dataContract, XmlWriterDelegator xmlWriter, Object obj,
RuntimeTypeHandle declaredTypeHandle) at
System.Runtime.Serialization.XmlObjectSerializerWriteContext.InternalSerialize(XmlWriterDelegator
xmlWriter, Object obj, Boolean isDeclaredType, Boolean
writeXsiType, Int32 declaredTypeID, RuntimeTypeHandle
declaredTypeHandle) at
System.Runtime.Serialization.XmlObjectSerializerWriteContext.InternalSerializeReference(XmlWriterDelegator
xmlWriter, Object obj, Boolean isDeclaredType, Boolean
writeXsiType, Int32 declaredTypeID, RuntimeTypeHandle
declaredTypeHandle) at
WriteEntityTypeDtoToXml(XmlWriterDelegator , Object ,
XmlObjectSerializerWriteContext , ClassDataContract )
at
System.Runtime.Serialization.ClassDataContract.WriteXmlValue(XmlWriterDelegator
xmlWriter, Object obj, XmlObjectSerializerWriteContext
context) at
System.Runtime.Serialization.XmlObjectSerializerWriteContext.WriteDataContractValue(DataContract
dataContract, XmlWriterDelegator xmlWriter, Object obj,
RuntimeTypeHandle declaredTypeHandle) at
System.Runtime.Serialization.XmlObjectSerializerWriteContext.SerializeWithoutXsiType(DataContract
dataContract, XmlWriterDelegator xmlWriter, Object obj,
RuntimeTypeHandle declaredTypeHandle) at
System.Runtime.Serialization.XmlObjectSerializerWriteContext.InternalSerialize(XmlWriterDelegator
xmlWriter, Object obj, Boolean isDeclaredType, Boolean
writeXsiType, Int32 declaredTypeID, RuntimeTypeHandle
declaredTypeHandle) at
System.Runtime.Serialization.XmlObjectSerializerWriteContext.InternalSerializeReference(XmlWriterDelegator
xmlWriter, Object obj, Boolean isDeclaredType, Boolean
writeXsiType, Int32 declaredTypeID, RuntimeTypeHandle
declaredTypeHandle) at
WriteNodeTypeDtoToXml(XmlWriterDelegator , Object ,
XmlObjectSerializerWriteContext , ClassDataContract )
at
System.Runtime.Serialization.ClassDataContract.WriteXmlValue(XmlWriterDelegator
xmlWriter, Object obj, XmlObjectSerializerWriteContext
context) at
System.Runtime.Serialization.XmlObjectSerializerWriteContext.WriteDataContractValue(DataContract
dataContract, XmlWriterDelegator xmlWriter, Object obj,
RuntimeTypeHandle declaredTypeHandle) at
System.Runtime.Serialization.XmlObjectSerializerWriteContext.SerializeWithoutXsiType(DataContract
dataContract, XmlWriterDelegator xmlWriter, Object obj,
RuntimeTypeHandle declaredTypeHandle) at
System.Runtime.Serialization.XmlObjectSerializerWriteContext.InternalSerialize(XmlWriterDelegator
xmlWriter, Object obj, Boolean isDeclaredType, Boolean
writeXsiType, Int32 declaredTypeID, RuntimeTypeHandle
declaredTypeHandle) at
WriteArrayOfNodeTypeDtoToXml(XmlWriterDelegator ,
Object , XmlObjectSerializerWriteContext ,
CollectionDataContract ) at
System.Runtime.Serialization.CollectionDataContract.WriteXmlValue(XmlWriterDelegator
xmlWriter, Object obj, XmlObjectSerializerWriteContext
context) at
System.Runtime.Serialization.XmlObjectSerializerWriteContext.WriteDataContractValue(DataContract
dataContract, XmlWriterDelegator xmlWriter, Object obj,
RuntimeTypeHandle declaredTypeHandle) at
System.Runtime.Serialization.XmlObjectSerializerWriteContext.SerializeWithoutXsiType(DataContract
dataContract, XmlWriterDelegator xmlWriter, Object obj,
RuntimeTypeHandle declaredTypeHandle) at
System.Runtime.Serialization.DataContractSerializer.InternalWriteObjectContent(XmlWriterDelegator
writer, Object graph) at
System.Runtime.Serialization.DataContractSerializer.InternalWriteObject(XmlWriterDelegator
writer, Object graph) at
System.Runtime.Serialization.XmlObjectSerializer.WriteObjectHandleExceptions(XmlWriterDelegator
writer, Object graph) at
System.Runtime.Serialization.XmlObjectSerializer.WriteObject(XmlDictionaryWriter
writer, Object graph) at
System.ServiceModel.Dispatcher.DataContractSerializerOperationFormatter.SerializeParameterPart(XmlDictionaryWriter
writer, PartInfo part, Object graph) at
System.ServiceModel.Dispatcher.DataContractSerializerOperationFormatter.SerializeParameter(XmlDictionaryWriter
writer, PartInfo part, Object graph) at
System.ServiceModel.Dispatcher.DataContractSerializerOperationFormatter.SerializeBody(XmlDictionaryWriter
writer, MessageVersion version, String action,
MessageDescription messageDescription, Object
returnValue, Object[] parameters, Boolean isRequest) at
System.ServiceModel.Dispatcher.OperationFormatter.SerializeBodyContents(XmlDictionaryWriter
writer, MessageVersion version, Object[] parameters,
Object returnValue, Boolean isRequest) at
System.ServiceModel.Dispatcher.OperationFormatter.OperationFormatterMessage.OperationFormatterBodyWriter.OnWriteBodyContents(XmlDictionaryWriter
writer) at
System.ServiceModel.Channels.BodyWriter.WriteBodyContents(XmlDictionaryWriter
writer) at
System.ServiceModel.Channels.BodyWriterMessage.OnWriteBodyContents(XmlDictionaryWriter
writer) at
System.ServiceModel.Channels.Message.WriteBodyContents(XmlDictionaryWriter
writer) at
System.ServiceModel.Security.SecurityAppliedMessage.WriteBodyToSignThenEncryptWithFragments(Stream
stream, Boolean includeComments, String[]
inclusivePrefixes, EncryptedData encryptedData,
SymmetricAlgorithm algorithm, XmlDictionaryWriter
writer) at
System.ServiceModel.Security.WSSecurityOneDotZeroSendSecurityHeader.ApplyBodySecurity(XmlDictionaryWriter
writer, IPrefixGenerator prefixGenerator) at
System.ServiceModel.Security.SecurityAppliedMessage.OnWriteMessage(XmlDictionaryWriter
writer) at
System.ServiceModel.Channels.Message.WriteMessage(XmlDictionaryWriter
writer) at
System.ServiceModel.Channels.BufferedMessageWriter.WriteMessage(Message
message, BufferManager bufferManager, Int32
initialOffset, Int32 maxSizeQuota) at
System.ServiceModel.Channels.TextMessageEncoderFactory.TextMessageEncoder.WriteMessage(Message
message, Int32 maxMessageSize, BufferManager
bufferManager, Int32 messageOffset) at
System.ServiceModel.Channels.HttpOutput.SerializeBufferedMessage(Message
message) at
System.ServiceModel.Channels.HttpOutput.Send(TimeSpan
timeout) at
System.ServiceModel.Channels.HttpRequestContext.OnReply(Message
message, TimeSpan timeout) at
System.ServiceModel.Activation.HostedHttpContext.OnReply(Message
message, TimeSpan timeout) at
System.ServiceModel.Channels.RequestContextBase.Reply(Message
message, TimeSpan timeout) at
System.ServiceModel.Security.SecuritySessionServerSettings.SecuritySessionRequestContext.OnReply(Message
message, TimeSpan timeout) at
System.ServiceModel.Channels.RequestContextBase.Reply(Message
message, TimeSpan timeout) at
System.ServiceModel.Channels.RequestContextBase.Reply(Message
message) at
System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.Reply(MessageRpc&
rpc) at
System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessageCleanup(MessageRpc&
rpc) at
System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage5(MessageRpc&
rpc) at
System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage4(MessageRpc&
rpc) at
System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage3(MessageRpc&
rpc) at
System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage2(MessageRpc&
rpc) at
System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage1(MessageRpc&
rpc) at
System.ServiceModel.Dispatcher.MessageRpc.Process(Boolean
isOperationContextSet) at
System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.Dispatch(MessageRpc&
rpc, Boolean isOperationContextSet) at
System.ServiceModel.Dispatcher.ChannelHandler.DispatchAndReleasePump(RequestContext
request, Boolean cleanThread, OperationContext
currentOperationContext) at
System.ServiceModel.Dispatcher.ChannelHandler.HandleRequest(RequestContext
request, OperationContext currentOperationContext) at
System.ServiceModel.Dispatcher.ChannelHandler.AsyncMessagePump(IAsyncResult
result) at
System.ServiceModel.Dispatcher.ChannelHandler.OnContinueAsyncReceive(Object
state) at
System.ServiceModel.Channels.IOThreadScheduler.CriticalHelper.WorkItem.Invoke2()
at
System.ServiceModel.Channels.IOThreadScheduler.CriticalHelper.WorkItem.OnSecurityContextCallback(Object
o) at
System.Security.SecurityContext.Run(SecurityContext
securityContext, ContextCallback callback, Object
state) at
System.ServiceModel.Channels.IOThreadScheduler.CriticalHelper.WorkItem.Invoke()
at
System.ServiceModel.Channels.IOThreadScheduler.CriticalHelper.ProcessCallbacks()
at
System.ServiceModel.Channels.IOThreadScheduler.CriticalHelper.CompletionCallback(Object
state) at
System.ServiceModel.Channels.IOThreadScheduler.CriticalHelper.ScheduledOverlapped.IOCallback(UInt32
errorCode, UInt32 numBytes, NativeOverlapped*
nativeOverlapped) at
System.ServiceModel.Diagnostics.Utility.IOCompletionThunk.UnhandledExceptionFrame(UInt32
error, UInt32 bytesRead, NativeOverlapped*
nativeOverlapped) at
System.Threading._IOCompletionCallback.PerformIOCompletionCallback(UInt32
errorCode, UInt32 numBytes, NativeOverlapped*
pOVERLAP)</StackTrace>
<ExceptionString>System.InsufficientMemoryException:
Failed to allocate a managed memory buffer of 536870912
bytes. The amount of available memory may be low.
---> System.OutOfMemoryException: Exception of type
'System.OutOfMemoryException' was thrown. at
System.ServiceModel.Diagnostics.Utility.AllocateByteArray(Int32
size) --- End of inner exception stack trace
---</ExceptionString>
<InnerException>
<ExceptionType>System.OutOfMemoryException, mscorlib,
Version=2.0.0.0, Culture=neutral,
PublicKeyToken=b77a5c561934e089</ExceptionType>
<Message>Exception of type
'System.OutOfMemoryException' was thrown.</Message>
<StackTrace>at
System.ServiceModel.Diagnostics.Utility.AllocateByteArray(Int32
size)</StackTrace>
<ExceptionString>System.OutOfMemoryException:
Exception of type 'System.OutOfMemoryException' was
thrown. at
System.ServiceModel.Diagnostics.Utility.AllocateByteArray(Int32
size)</ExceptionString>
</InnerException>
</Exception>
</TraceRecord>
</DataItem>
</TraceData>
</ApplicationData>
</E2ETraceEvent>等待纳贝尔
回答 3
Stack Overflow用户
回答已采纳
发布于 2010-06-29 17:26:36
你确定你的字节数组只有2MB左右吗？从您发布的异常消息来看，缓冲区中的消息似乎接近0.5GB (536870912字节)。此错误是否持续发生？在发生这种情况时，您是否正在运行多个服务调用？
还请理解，当使用WSHttpBinding与消息安全性时，整个消息将被缓冲。我的理解是，这样做是为了在一个块中加密整个消息，以便在报头中提供相应的详细信息。换句话说，报头需要消息的长度，这在加密完成之前是未知的。
看看我问How to best transfer large payloads of data using wsHttp with WCF with message security的相关问题。
Stack Overflow用户
发布于 2015-06-29 07:16:00
我们的应用程序池被设置为每0分钟回收一次(不回收)。在将其更改为1740并手动回收池后，错误就消失了。我认为应用程序池耗尽了可用/提交的内存，如果没有在.NET中正确地释放所有对象，则返回该消息
Stack Overflow用户
发布于 2016-10-21 07:01:02
我们也有同样的问题。试着下载一个只有15 to的文档，内存使用量飙升到1gb左右。这导致服务器上出现了一个外部内存异常。对我们来说，解决办法很简单。数据契约为ByteArray实现了一个ByteArray。当我们将它改为Byte[]时，问题就消失了，内存的使用又恢复了正常。显然，序列化过程不能有效地处理ICollection类型。
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/3139098
复制相关文章
相似问题
腾讯云开发者
