Suppressed: reactor.core.publisher.FluxOnAssembly$OnAssemblyException:

[junmowen]

Describe the bug spring-boot 2.7.2 spring-cloud 2021.0.1 gateway 3.1.1

2022-08-01 14:04:47.510 ERROR [gateway-server,,] 28483 --- [or-http-epoll-1] reactor.core.publisher.Operators : Operator called default onErrorDropped

reactor.netty.ReactorNetty$InternalNettyException: io.netty.util.internal.OutOfDirectMemoryError: failed to allocate 4194304 byte(s) of direct memory (used: 1035993095, max: 1037959168) Suppressed: reactor.core.publisher.FluxOnAssembly$OnAssemblyException: Error has been observed at the following site(s): *__checkpoint ⇢ springfox.boot.starter.autoconfigure.SwaggerUiWebFluxConfiguration$CustomWebFilter [DefaultWebFilterChain] *__checkpoint ⇢ org.springframework.web.cors.reactive.CorsWebFilter [DefaultWebFilterChain] *__checkpoint ⇢ org.springframework.cloud.gateway.filter.WeightCalculatorWebFilter [DefaultWebFilterChain] *__checkpoint ⇢ org.springframework.cloud.sleuth.instrument.web.TraceWebFilter [DefaultWebFilterChain] *__checkpoint ⇢ HTTP POST "/sysapi/org/tree/query" [ExceptionHandlingWebHandler] Original Stack Trace: Caused by: io.netty.util.internal.OutOfDirectMemoryError: failed to allocate 4194304 byte(s) of direct memory (used: 1035993095, max: 1037959168) at io.netty.util.internal.PlatformDependent.incrementMemoryCounter(PlatformDependent.java:845) ~[netty-common-4.1.79.Final.jar!/:4.1.79.Final] at io.netty.util.internal.PlatformDependent.allocateDirectNoCleaner(PlatformDependent.java:774) ~[netty-common-4.1.79.Final.jar!/:4.1.79.Final] at io.netty.buffer.PoolArena$DirectArena.allocateDirect(PoolArena.java:649) ~[netty-buffer-4.1.79.Final.jar!/:4.1.79.Final] at io.netty.buffer.PoolArena$DirectArena.newChunk(PoolArena.java:624) ~[netty-buffer-4.1.79.Final.jar!/:4.1.79.Final] at io.netty.buffer.PoolArena.allocateNormal(PoolArena.java:203) ~[netty-buffer-4.1.79.Final.jar!/:4.1.79.Final] at io.netty.buffer.PoolArena.tcacheAllocateNormal(PoolArena.java:187) ~[netty-buffer-4.1.79.Final.jar!/:4.1.79.Final] at io.netty.buffer.PoolArena.allocate(PoolArena.java:136) ~[netty-buffer-4.1.79.Final.jar!/:4.1.79.Final] at io.netty.buffer.PoolArena.allocate(PoolArena.java:126) ~[netty-buffer-4.1.79.Final.jar!/:4.1.79.Final] at io.netty.buffer.PooledByteBufAllocator.newDirectBuffer(PooledByteBufAllocator.java:396) ~[netty-buffer-4.1.79.Final.jar!/:4.1.79.Final] at io.netty.buffer.AbstractByteBufAllocator.directBuffer(AbstractByteBufAllocator.java:188) ~[netty-buffer-4.1.79.Final.jar!/:4.1.79.Final] at io.netty.buffer.AbstractByteBufAllocator.directBuffer(AbstractByteBufAllocator.java:179) ~[netty-buffer-4.1.79.Final.jar!/:4.1.79.Final] at io.netty.channel.unix.PreferredDirectByteBufAllocator.ioBuffer(PreferredDirectByteBufAllocator.java:53) ~[netty-transport-native-unix-common-4.1.79.Final.jar!/:4.1.79.Final] at io.netty.channel.DefaultMaxMessagesRecvByteBufAllocator$MaxMessageHandle.allocate(DefaultMaxMessagesRecvByteBufAllocator.java:120) ~[netty-transport-4.1.79.Final.jar!/:4.1.79.Final] at io.netty.channel.epoll.EpollRecvByteAllocatorHandle.allocate(EpollRecvByteAllocatorHandle.java:75) ~[netty-transport-classes-epoll-4.1.79.Final.jar!/:4.1.79.Final] at io.netty.channel.epoll.AbstractEpollStreamChannel$EpollStreamUnsafe.epollInReady(AbstractEpollStreamChannel.java:785) ~[netty-transport-classes-epoll-4.1.79.Final.jar!/:4.1.79.Final] at io.netty.channel.epoll.EpollEventLoop.processReady(EpollEventLoop.java:487) [netty-transport-classes-epoll-4.1.79.Final.jar!/:4.1.79.Final] at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:385) [netty-transport-classes-epoll-4.1.79.Final.jar!/:4.1.79.Final] at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:997) [netty-common-4.1.79.Final.jar!/:4.1.79.Final] at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) [netty-common-4.1.79.Final.jar!/:4.1.79.Final] at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) [netty-common-4.1.79.Final.jar!/:4.1.79.Final] at java.lang.Thread.run(Thread.java:750) [na:1.8.0_333]