[PLC4X-175] ERROR ResourceLeakDetector: LEAK: ByteBuf.release() was not called before it's garbage-collected

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Invalid
• Affects Version/s: 0.5.0, 0.6.0
• Component/s: Driver-Modbus
• Labels: leak memory netty
• Assignee: Julian Feinauer
• Reporter: Alvaro del Castillo
• Created: 12/Feb/20 06:10
• Updated: 27/Dec/21 09:41
• Resolved: 27/Dec/21 09:41

Description

After some time collecting data from a modbus TCP device we get the error:

 

 

16:29:50.228 ERROR 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:
        io.netty.buffer.PooledByteBufAllocator.newDirectBuffer(PooledByteBufAllocator.java:331)
        io.netty.buffer.AbstractByteBufAllocator.directBuffer(AbstractByteBufAllocator.java:185)
        io.netty.buffer.AbstractByteBufAllocator.directBuffer(AbstractByteBufAllocator.java:176)
        io.netty.buffer.AbstractByteBufAllocator.ioBuffer(AbstractByteBufAllocator.java:137)
        io.netty.channel.DefaultMaxMessagesRecvByteBufAllocator$MaxMessageHandle.allocate(DefaultMaxMessagesRecvByteBufAllocator.java:114)
        io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:147)
        io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:644)
        io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:579)
        io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:496)
        io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:458)
        io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:897)
        io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
        java.lang.Thread.run(Thread.java:748)

 

Issue Links

• is related to: PLC4X-163 Netty OutOfDirectMemoryError