小编dar*_*k_n的帖子

我经历过从负责将数据发送到 TCP 客户端的管道抛出的以下异常。

2017-03-02T18:00:53,749 [epollEventLoopGroup-3-1] ERROR [ExceptionHandler - null] - Unknown exception
io.netty.util.internal.OutOfDirectMemoryError: failed to allocate 16777216 byte(s) of direct memory (used: 117440512, max: 119537664)
    at io.netty.util.internal.PlatformDependent.incrementMemoryCounter(PlatformDependent.java:613) ~[netty-common-4.1.2.Final.jar:4.1.2.Final]
    at io.netty.util.internal.PlatformDependent.allocateDirectNoCleaner(PlatformDependent.java:567) ~[netty-common-4.1.2.Final.jar:4.1.2.Final]
    at io.netty.buffer.PoolArena$DirectArena.allocateDirect(PoolArena.java:699) ~[netty-buffer-4.1.2.Final.jar:4.1.2.Final]
    at io.netty.buffer.PoolArena$DirectArena.newChunk(PoolArena.java:688) ~[netty-buffer-4.1.2.Final.jar:4.1.2.Final]
    at io.netty.buffer.PoolArena.allocateNormal(PoolArena.java:237) ~[netty-buffer-4.1.2.Final.jar:4.1.2.Final]
    at io.netty.buffer.PoolArena.allocate(PoolArena.java:213) ~[netty-buffer-4.1.2.Final.jar:4.1.2.Final]
    at io.netty.buffer.PoolArena.allocate(PoolArena.java:141) ~[netty-buffer-4.1.2.Final.jar:4.1.2.Final]
    at io.netty.buffer.PooledByteBufAllocator.newDirectBuffer(PooledByteBufAllocator.java:262) ~[netty-buffer-4.1.2.Final.jar:4.1.2.Final]
    at io.netty.buffer.AbstractByteBufAllocator.directBuffer(AbstractByteBufAllocator.java:179) ~[netty-buffer-4.1.2.Final.jar:4.1.2.Final]
    at io.netty.buffer.AbstractByteBufAllocator.directBuffer(AbstractByteBufAllocator.java:170) ~[netty-buffer-4.1.2.Final.jar:4.1.2.Final]
    at io.netty.buffer.AbstractByteBufAllocator.ioBuffer(AbstractByteBufAllocator.java:131) ~[netty-buffer-4.1.2.Final.jar:4.1.2.Final]
    at io.netty.channel.DefaultMaxMessagesRecvByteBufAllocator$MaxMessageHandle.allocate(DefaultMaxMessagesRecvByteBufAllocator.java:73) ~[netty-transport-4.1.2.Final.jar:4.1.2.Final]
    at io.netty.channel.RecvByteBufAllocator$DelegatingHandle.allocate(RecvByteBufAllocator.java:124) ~[netty-transport-4.1.2.Final.jar:4.1.2.Final]
    at io.netty.channel.epoll.AbstractEpollStreamChannel$EpollStreamUnsafe.epollInReady(AbstractEpollStreamChannel.java:950) [netty-transport-native-epoll-4.1.2.Final-linux-x86_64.jar:4.1.2.Final]
    at io.netty.channel.epoll.AbstractEpollChannel$AbstractEpollUnsafe$1.run(AbstractEpollChannel.java:359) [netty-transport-native-epoll-4.1.2.Final-linux-x86_64.jar:4.1.2.Final]
    at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:400) [netty-common-4.1.2.Final.jar:4.1.2.Final]
    at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:306) [netty-transport-native-epoll-4.1.2.Final-linux-x86_64.jar:4.1.2.Final]
    at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:805) [netty-common-4.1.2.Final.jar:4.1.2.Final]
    at …