LEAK : ByteBuf.release was not called

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    • Type: Bug
    • Resolution: Fixed
    • Priority: Unknown
    • 5.6.0
    • Affects Version/s: None
    • Component/s: Wire Protocol
    • None
    • Fully Compatible
    • Java Drivers
    • Not Needed
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      3. Which versions of the driver/connector does this apply to?

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      1. What would you like to communicate to the user about this feature? 2. Would you like the user to see examples of the syntax and/or executable code and its output? 3. Which versions of the driver/connector does this apply to?
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      under mongo-java-driver : 5.5.1, netty : 4.1.122-FINAL, jdk24 + ZGC
      i can see such an error like below from time to time.
      as i see, i can be timing issue.
      for normal state, ByteBuf is read completely -> released -> GC collects
      however, sometimes ByteBuf is read completely -> GC collects > released : this is ERROR!
      can i get any suggestion or advice?

      related linkl

      
LEAK: ByteBuf.release() was not called before it's garbage-collected. See https://netty.io/wiki/reference-counted-objects.html for more information.
Recent access records: 
Created at:
    io.netty.buffer.AbstractByteBufAllocator.compositeDirectBuffer(AbstractByteBufAllocator.java:224)
    io.netty.buffer.AbstractByteBufAllocator.compositeBuffer(AbstractByteBufAllocator.java:202)
    com.mongodb.internal.connection.netty.NettyStream.readAsync(NettyStream.java:301)
    com.mongodb.internal.connection.netty.NettyStream.handleReadResponse(NettyStream.java:361)
    com.mongodb.internal.connection.netty.NettyStream.access$900(NettyStream.java:115)
    com.mongodb.internal.connection.netty.NettyStream$InboundBufferHandler.channelRead0(NettyStream.java:437)
    com.mongodb.internal.connection.netty.NettyStream$InboundBufferHandler.channelRead0(NettyStream.java:434)
    io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:99)
    io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:444)
    io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420)
    io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:412)
    io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1357)
    io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:440)
    io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420)
    io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:868)
    io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:166)
    io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:796)
    io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:732)
    io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:658)
    io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:562)
    io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:998)
    io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
    io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
    java.base/java.lang.Thread.run(Unknown Source)

            Assignee:
            Ross Lawley
            Reporter:
            cedric lee
            Slav Babanin
            Votes:
            0 Vote for this issue
            Watchers:
            6 Start watching this issue

              Created:
              Updated:
              Resolved: