io.netty.util.internal.OutOfDirectMemoryError

[zhoub739]

Version spring cloud : Hoxton.SR8 spring cloud starter gateway : 2.2.5.RELEASE spring boot starter : 2.3.2.RELEASE netty : 4.1.51.Final

when i use springcloud gateway, i got OutOfDirectMemoryError like:

io.netty.util.internal.OutOfDirectMemoryError: failed to allocate 16777216 byte(s) of direct memory (used: 3690987527, max: 3702521856) at io.netty.util.internal.PlatformDependent.incrementMemoryCounter(PlatformDependent.java:754) ~[netty-common-4.1.51.Final.jar!/:4.1.51.Final] at io.netty.util.internal.PlatformDependent.allocateDirectNoCleaner(PlatformDependent.java:709) ~[netty-common-4.1.51.Final.jar!/:4.1.51.Final] at io.netty.buffer.PoolArena$DirectArena.allocateDirect(PoolArena.java:755) ~[netty-buffer-4.1.51.Final.jar!/:4.1.51.Final] at io.netty.buffer.PoolArena$DirectArena.newChunk(PoolArena.java:731) ~[netty-buffer-4.1.51.Final.jar!/:4.1.51.Final] at io.netty.buffer.PoolArena.allocateNormal(PoolArena.java:247) ~[netty-buffer-4.1.51.Final.jar!/:4.1.51.Final] at io.netty.buffer.PoolArena.allocate(PoolArena.java:215) ~[netty-buffer-4.1.51.Final.jar!/:4.1.51.Final] at io.netty.buffer.PoolArena.allocate(PoolArena.java:147) ~[netty-buffer-4.1.51.Final.jar!/:4.1.51.Final] at io.netty.buffer.PooledByteBufAllocator.newDirectBuffer(PooledByteBufAllocator.java:356) ~[netty-buffer-4.1.51.Final.jar!/:4.1.51.Final] at io.netty.buffer.AbstractByteBufAllocator.directBuffer(AbstractByteBufAllocator.java:187) ~[netty-buffer-4.1.51.Final.jar!/:4.1.51.Final] at io.netty.buffer.AbstractByteBufAllocator.directBuffer(AbstractByteBufAllocator.java:178) ~[netty-buffer-4.1.51.Final.jar!/:4.1.51.Final] at io.netty.channel.unix.PreferredDirectByteBufAllocator.ioBuffer(PreferredDirectByteBufAllocator.java:53) ~[netty-transport-native-unix-common-4.1.51.Final.jar!/:4.1.51.Final] at io.netty.channel.DefaultMaxMessagesRecvByteBufAllocator$MaxMessageHandle.allocate(DefaultMaxMessagesRecvByteBufAllocator.java:114) ~[netty-transport-4.1.51.Final.jar!/:4.1.51.Final] at io.netty.channel.epoll.EpollRecvByteAllocatorHandle.allocate(EpollRecvByteAllocatorHandle.java:75) ~[netty-transport-native-epoll-4.1.51.Final-linux-x86_64.jar!/:4.1.51.Final] at io.netty.channel.epoll.AbstractEpollStreamChannel$EpollStreamUnsafe.epollInReady(AbstractEpollStreamChannel.java:777) [netty-transport-native-epoll-4.1.51.Final-linux-x86_64.jar!/:4.1.51.Final] at io.netty.channel.epoll.EpollEventLoop.processReady(EpollEventLoop.java:475) [netty-transport-native-epoll-4.1.51.Final-linux-x86_64.jar!/:4.1.51.Final] at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:378) [netty-transport-native-epoll-4.1.51.Final-linux-x86_64.jar!/:4.1.51.Final] at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:989) [netty-common-4.1.51.Final.jar!/:4.1.51.Final] at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) [netty-common-4.1.51.Final.jar!/:4.1.51.Final] at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) [netty-common-4.1.51.Final.jar!/:4.1.51.Final] at java.lang.Thread.run(Thread.java:745) [?:1.8.0_111]