Hi Isuru,

Thank for the clarification.

Best Regards
Thusitha

On Tue, Jun 14, 2016 at 2:24 PM, Isuru Ranawaka <[email protected]> wrote:

> Hi Thusitha,
>
> Need to release Netty ByteBuf after consuming it. Netty ByteBuf internally
> keep reference count and if it does not actually has a reference  then GC
> runs  and try to remove the object from heap  but if Netty level  reference
> count >= 1 at that time this Error will be thrown. we will check how to
> eliminate this error from transport level.
>
> thanks
>
> On Tue, Jun 14, 2016 at 12:35 PM, Thusitha Thilina Dayaratne <
> [email protected]> wrote:
>
>> Hi,
>>
>> When I'm trying to stream a large request  (about 500mb file) I'm getting
>> below error.
>>
>> ERROR ResourceLeakDetector:171 - LEAK: ByteBuf.release() was not called
>>> before it's garbage-collected. See
>>> http://netty.io/wiki/reference-counted-objects.html for more
>>> information.
>>
>>
>> When I run with *-Dio.netty.leakDetectionLevel=advanced *I can see the
>> below stacktrace
>>
>>> Recent access records: 5
>>>
>>> #5:
>>>
>>> io.netty.buffer.AdvancedLeakAwareByteBuf.nioBuffer(AdvancedLeakAwareByteBuf.java:667)
>>>
>>> org.wso2.carbon.transport.http.netty.NettyCarbonMessage.getMessageBody(NettyCarbonMessage.java:62)
>>> org.wso2.msf4j.Request.getMessageBody(Request.java:56)
>>>
>>> org.wso2.msf4j.io.MSF4JRequestInputStream.read(MSF4JRequestInputStream.java:41)
>>> java.io.InputStream.read(InputStream.java:179)
>>>
>>> org.wso2.msf4j.formparam.MultipartStream$ItemInputStream.makeAvailable(MultipartStream.java:814)
>>>
>>> org.wso2.msf4j.formparam.MultipartStream$ItemInputStream.read(MultipartStream.java:718)
>>> java.io.InputStream.read(InputStream.java:101)
>>> java.nio.file.Files.copy(Files.java:2908)
>>> java.nio.file.Files.copy(Files.java:3027)
>>>
>>> org.wso2.msf4j.example.FormService.simpleFormStreaming(FormService.java:79)
>>> sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>>>
>>> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
>>>
>>> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>>> java.lang.reflect.Method.invoke(Method.java:497)
>>>
>>> org.wso2.msf4j.internal.router.HttpMethodInfo.invoke(HttpMethodInfo.java:106)
>>>
>>> org.wso2.msf4j.internal.MSF4JMessageProcessor.dispatchMethod(MSF4JMessageProcessor.java:126)
>>>
>>> org.wso2.msf4j.internal.MSF4JMessageProcessor.receive(MSF4JMessageProcessor.java:73)
>>>
>>> org.wso2.carbon.transport.http.netty.listener.WorkerPoolDispatchingSourceHandler$1.run(WorkerPoolDispatchingSourceHandler.java:125)
>>>
>>> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
>>>
>>> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
>>> java.lang.Thread.run(Thread.java:745)
>>> #4:
>>>
>>> io.netty.buffer.AdvancedLeakAwareByteBuf.release(AdvancedLeakAwareByteBuf.java:45)
>>>
>>> io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:237)
>>>
>>> io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:308)
>>>
>>> io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:294)
>>>
>>> io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:846)
>>>
>>> io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:131)
>>>
>>> io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:511)
>>>
>>> io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:468)
>>>
>>> io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:382)
>>> io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:354)
>>>
>>> io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:110)
>>>
>>> io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:137)
>>> java.lang.Thread.run(Thread.java:745)
>>> #3:
>>>
>>> io.netty.buffer.AdvancedLeakAwareByteBuf.retain(AdvancedLeakAwareByteBuf.java:709)
>>>
>>> io.netty.handler.codec.http.HttpObjectDecoder.decode(HttpObjectDecoder.java:294)
>>>
>>> io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:327)
>>>
>>> io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:230)
>>>
>>> io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:308)
>>>
>>> io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:294)
>>>
>>> io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:846)
>>>
>>> io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:131)
>>>
>>> io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:511)
>>>
>>> io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:468)
>>>
>>> io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:382)
>>> io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:354)
>>>
>>> io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:110)
>>>
>>> io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:137)
>>> java.lang.Thread.run(Thread.java:745)
>>> #2:
>>>
>>> io.netty.buffer.AdvancedLeakAwareByteBuf.readSlice(AdvancedLeakAwareByteBuf.java:91)
>>>
>>> io.netty.handler.codec.http.HttpObjectDecoder.decode(HttpObjectDecoder.java:294)
>>>
>>> io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:327)
>>>
>>> io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:230)
>>>
>>> io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:308)
>>>
>>> io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:294)
>>>
>>> io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:846)
>>>
>>> io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:131)
>>>
>>> io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:511)
>>>
>>> io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:468)
>>>
>>> io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:382)
>>> io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:354)
>>>
>>> io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:110)
>>>
>>> io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:137)
>>> java.lang.Thread.run(Thread.java:745)
>>> #1:
>>>
>>> io.netty.buffer.AdvancedLeakAwareByteBuf.writeBytes(AdvancedLeakAwareByteBuf.java:589)
>>>
>>> io.netty.channel.socket.nio.NioSocketChannel.doReadBytes(NioSocketChannel.java:242)
>>>
>>> io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:119)
>>>
>>> io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:511)
>>>
>>> io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:468)
>>>
>>> io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:382)
>>> io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:354)
>>>
>>> io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:110)
>>>
>>> io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:137)
>>> java.lang.Thread.run(Thread.java:745)
>>> Created at:
>>>
>>> io.netty.buffer.UnpooledByteBufAllocator.newDirectBuffer(UnpooledByteBufAllocator.java:55)
>>>
>>> io.netty.buffer.AbstractByteBufAllocator.directBuffer(AbstractByteBufAllocator.java:155)
>>>
>>> io.netty.buffer.AbstractByteBufAllocator.directBuffer(AbstractByteBufAllocator.java:146)
>>>
>>> io.netty.buffer.AbstractByteBufAllocator.ioBuffer(AbstractByteBufAllocator.java:107)
>>>
>>> io.netty.channel.AdaptiveRecvByteBufAllocator$HandleImpl.allocate(AdaptiveRecvByteBufAllocator.java:104)
>>>
>>> io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:117)
>>>
>>> io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:511)
>>>
>>> io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:468)
>>>
>>> io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:382)
>>> io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:354)
>>>
>>> io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:110)
>>>
>>> io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:137)
>>> java.lang.Thread.run(Thread.java:745)
>>>
>>>
>> My wrapper class for msf4j request is [1]. Did I missed something here?
>>
>> [1] -
>> https://github.com/thusithathilina/msf4j/blob/master/core/src/main/java/org/wso2/msf4j/io/MSF4JRequestInputStream.java#L43
>>
>> [2] -
>> https://github.com/wso2/carbon-transports/blob/v2.1.0/http/netty/components/org.wso2.carbon.transport.http.netty/src/main/java/org/wso2/carbon/transport/http/netty/NettyCarbonMessage.java#L62
>>
>> Thanks
>> --
>> Thusitha Dayaratne
>> Software Engineer
>> WSO2 Inc. - lean . enterprise . middleware |  wso2.com
>>
>> Mobile  +94712756809
>> Blog      alokayasoya.blogspot.com
>> About    http://about.me/thusithathilina
>>
>>
>
>
> --
> Best Regards
> Isuru Ranawaka
> M: +94714629880
> Blog : http://isurur.blogspot.com/
>



-- 
Thusitha Dayaratne
Software Engineer
WSO2 Inc. - lean . enterprise . middleware |  wso2.com

Mobile  +94712756809
Blog      alokayasoya.blogspot.com
About    http://about.me/thusithathilina
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