ResourceLeakDetector,LEAK: ByteBuf.release()

[kotlapraveen]

Hi we are using
netty version : 4.1.29.Final
Maven dependencies are below

<dependency> <groupId>io.netty</groupId> <artifactId>netty-all</artifactId> <version>${netty.version}</version> </dependency> <dependency> <groupId>io.reactivex</groupId> <artifactId>rxnetty</artifactId> <version>0.4.20</version> </dependency> <dependency> <groupId>io.reactivex</groupId> <artifactId>rxnetty-servo</artifactId> <version>0.4.20</version> </dependency> <dependency> <groupId>io.reactivex</groupId> <artifactId>rxjava</artifactId> <version>1.3.8</version> </dependency> <dependency> <groupId>io.reactivex</groupId> <artifactId>rxjava-computation-expressions</artifactId> <version>0.21.0</version> </dependency>

Seeing the below exception.

Tried the below option '-Dio.netty.leakDetectionLevel=advanced' part of advice provided in
https://netty.io/wiki/reference-counted-objects.html

But that didnt help couldnt see which class in our project is causing the leak. May be the leak is in netty library itself? Please suggest on any solutions.

2018-07-30T07:32:39,230,level=ERROR,thread=rxnetty-nio-eventloop-4-2,category=ResourceLeakDetector,LEAK: ByteBuf.release() was not called before it's garbage-collected. See http://netty.io/wiki/reference-counted-objects.html for more information. Recent access records: Created at: #011io.netty.buffer.PooledByteBufAllocator.newHeapBuffer(PooledByteBufAllocator.java:314) #011io.netty.buffer.AbstractByteBufAllocator.heapBuffer(AbstractByteBufAllocator.java:166) #011io.netty.buffer.AbstractByteBufAllocator.heapBuffer(AbstractByteBufAllocator.java:157) #011io.netty.handler.codec.compression.JdkZlibDecoder.decode(JdkZlibDecoder.java:180) #011io.netty.handler.codec.ByteToMessageDecoder.decodeRemovalReentryProtection(ByteToMessageDecoder.java:489) #011io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:428) #011io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:265) #011io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362) #011io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348) #011io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:340) #011io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1434) #011io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362) #011io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348) #011io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:965) #011io.netty.channel.embedded.EmbeddedChannel.writeInbound(EmbeddedChannel.java:325) #011io.netty.handler.codec.http.HttpContentDecoder.decode(HttpContentDecoder.java:234) #011io.netty.handler.codec.http.HttpContentDecoder.decodeContent(HttpContentDecoder.java:155) #011io.netty.handler.codec.http.HttpContentDecoder.decode(HttpContentDecoder.java:147) #011io.netty.handler.codec.http.HttpContentDecoder.decode(HttpContentDecoder.java:46) #011io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:88) #011io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362) #011io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348) #011io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:340) #011io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:102) #011io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362) #011io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348) #011io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:340) #011io.netty.channel.CombinedChannelDuplexHandler$DelegatingChannelHandlerContext.fireChannelRead(CombinedChannelDuplexHandler.java:438) #011io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:310) #011io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:284) #011io.netty.channel.CombinedChannelDuplexHandler.channelRead(CombinedChannelDuplexHandler.java:253) #011io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362) #011io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348) #011io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:340) #011io.netty.channel.ChannelInboundHandlerAdapter.channelRead(ChannelInboundHandlerAdapter.java:86) #011io.reactivex.netty.metrics.BytesInspector.channelRead(BytesInspector.java:59) #011io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362) #011io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348) #011io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:340) #011io.reactivex.netty.pipeline.InternalReadTimeoutHandler.channelRead(InternalReadTimeoutHandler.java:108) #011io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362) #011io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348) #011io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:340) #011io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1434) #011io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362) #011io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348) #011io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:965) #011io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:163) #011io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:645) #011io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:580) #011io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:497) #011io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:459) #011io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:884) #011io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) #011java.lang.Thread.run(Thread.java:748)Collapse