Netty的内存溢出 请大神看看

[闲云小鹤]

公司的一个项目用netty跟客户端交互,刚刚启动项目一切正常 但是过了一两天就开始报下面的错误
io.netty.util.internal.OutOfDirectMemoryError: failed to allocate 16777216 byte(s) of direct memory (used: 251658240, max: 259522560)
at io.netty.util.internal.PlatformDependent.incrementMemoryCounter(PlatformDependent.java:624)
at io.netty.util.internal.PlatformDependent.allocateDirectNoCleaner(PlatformDependent.java:578)
at io.netty.buffer.PoolArena$DirectArena.allocateDirect(PoolArena.java:718)
at io.netty.buffer.PoolArena$DirectArena.newChunk(PoolArena.java:707)
at io.netty.buffer.PoolArena.allocateNormal(PoolArena.java:239)
at io.netty.buffer.PoolArena.allocate(PoolArena.java:221)
at io.netty.buffer.PoolArena.allocate(PoolArena.java:141)
at io.netty.buffer.PooledByteBufAllocator.newDirectBuffer(PooledByteBufAllocator.java:287)
at io.netty.buffer.AbstractByteBufAllocator.directBuffer(AbstractByteBufAllocator.java:179)
at io.netty.buffer.AbstractByteBufAllocator.directBuffer(AbstractByteBufAllocator.java:170)
at io.netty.buffer.AbstractByteBufAllocator.ioBuffer(AbstractByteBufAllocator.java:131)
at io.netty.channel.DefaultMaxMessagesRecvByteBufAllocator$MaxMessageHandle.allocate(DefaultMaxMessagesRecvByteBufAllocator.java:73)
at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:117)
at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:642)
at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:565)
at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:479)
at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:441)
at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:858)
at io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:144)
at java.lang.Thread.run(Unknown Source)

[oh_Maxy]

链接通道有没有close，是不是在finally里close的。 并发连接数是多少，消息大小多少，再看看启动内存分配多少。 从这几方面自检下代码。

[qq_25248837]

请问楼主解决了吗？我的项目也出现了这个问题，我的连接数不多，就几个长连接，客户端上报数据特别多，过两天就这样了

[former87]

我也出这个问题了，有人解决了嘛

[匠心零度]

[netty 堆外内存泄露排查盛宴](http://www.jiangxinlingdu.com/practice/2018/09/04/netty-outofheap.html)

[匠心零度]

http://www.jiangxinlingdu.com/practice/2018/09/04/netty-outofheap.html

[肥猫大王]

有人解决了吗。。。。。。。