zrlw commented on issue #15233: URL: https://github.com/apache/dubbo/issues/15233#issuecomment-2862878830
i tested ```TriDirectClientTest``` and found the issue will be triggered if ```TripleServerConnectionHandler``` throwed ```Http2Exception``` with ```Header size exceeded max allowed size (40960)```. ``` 19:42:13.182 |-WARN [NettyServerWorker-5-1] .transport.TripleServerConnectionHandler: -| [DUBBO] Channel:[id: 0x08bce973, L:/192.168.122.75:50052 - R:/192.168.122.75:57032] Error, dubbo version: 3.3.4-SNAPSHOT, current host: 192.168.122.75, error code: 4-14. This may be caused by , go to https://dubbo.apache.org/faq/4/14 to find instructions. io.netty.handler.codec.http2.Http2Exception: Header size exceeded max allowed size (40960) at io.netty.handler.codec.http2.Http2Exception.connectionError(Http2Exception.java:98) ~[netty-codec-http2-4.2.0.Final.jar:4.2.0.Final] at io.netty.handler.codec.http2.Http2CodecUtil.headerListSizeExceeded(Http2CodecUtil.java:243) ~[netty-codec-http2-4.2.0.Final.jar:4.2.0.Final] at io.netty.handler.codec.http2.DefaultHttp2FrameReader$HeadersBlockBuilder.headerSizeExceeded(DefaultHttp2FrameReader.java:688) ~[netty-codec-http2-4.2.0.Final.jar:4.2.0.Final] at io.netty.handler.codec.http2.DefaultHttp2FrameReader$HeadersBlockBuilder.addFragment(DefaultHttp2FrameReader.java:717) ~[netty-codec-http2-4.2.0.Final.jar:4.2.0.Final] at io.netty.handler.codec.http2.DefaultHttp2FrameReader$2.processFragment(DefaultHttp2FrameReader.java:473) ~[netty-codec-http2-4.2.0.Final.jar:4.2.0.Final] at io.netty.handler.codec.http2.DefaultHttp2FrameReader.readContinuationFrame(DefaultHttp2FrameReader.java:602) ~[netty-codec-http2-4.2.0.Final.jar:4.2.0.Final] at io.netty.handler.codec.http2.DefaultHttp2FrameReader.processPayloadState(DefaultHttp2FrameReader.java:271) ~[netty-codec-http2-4.2.0.Final.jar:4.2.0.Final] at io.netty.handler.codec.http2.DefaultHttp2FrameReader.readFrame(DefaultHttp2FrameReader.java:164) ~[netty-codec-http2-4.2.0.Final.jar:4.2.0.Final] at io.netty.handler.codec.http2.Http2InboundFrameLogger.readFrame(Http2InboundFrameLogger.java:39) ~[netty-codec-http2-4.2.0.Final.jar:4.2.0.Final] at io.netty.handler.codec.http2.DefaultHttp2ConnectionDecoder.decodeFrame(DefaultHttp2ConnectionDecoder.java:186) ~[netty-codec-http2-4.2.0.Final.jar:4.2.0.Final] at io.netty.handler.codec.http2.DecoratingHttp2ConnectionDecoder.decodeFrame(DecoratingHttp2ConnectionDecoder.java:61) ~[netty-codec-http2-4.2.0.Final.jar:4.2.0.Final] at io.netty.handler.codec.http2.DecoratingHttp2ConnectionDecoder.decodeFrame(DecoratingHttp2ConnectionDecoder.java:61) ~[netty-codec-http2-4.2.0.Final.jar:4.2.0.Final] at io.netty.handler.codec.http2.Http2ConnectionHandler$FrameDecoder.decode(Http2ConnectionHandler.java:391) [netty-codec-http2-4.2.0.Final.jar:4.2.0.Final] at io.netty.handler.codec.http2.Http2ConnectionHandler.decode(Http2ConnectionHandler.java:451) [netty-codec-http2-4.2.0.Final.jar:4.2.0.Final] at io.netty.handler.codec.ByteToMessageDecoder.decodeRemovalReentryProtection(ByteToMessageDecoder.java:530) [netty-codec-base-4.2.0.Final.jar:4.2.0.Final] at io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:469) [netty-codec-base-4.2.0.Final.jar:4.2.0.Final] at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:290) [netty-codec-base-4.2.0.Final.jar:4.2.0.Final] at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:359) [netty-transport-4.2.0.Final.jar:4.2.0.Final] at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1429) [netty-transport-4.2.0.Final.jar:4.2.0.Final] at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:918) [netty-transport-4.2.0.Final.jar:4.2.0.Final] at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:167) [netty-transport-4.2.0.Final.jar:4.2.0.Final] at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.handle(AbstractNioChannel.java:445) [netty-transport-4.2.0.Final.jar:4.2.0.Final] at io.netty.channel.nio.NioIoHandler$DefaultNioRegistration.handle(NioIoHandler.java:383) [netty-transport-4.2.0.Final.jar:4.2.0.Final] at io.netty.channel.nio.NioIoHandler.processSelectedKey(NioIoHandler.java:577) [netty-transport-4.2.0.Final.jar:4.2.0.Final] at io.netty.channel.nio.NioIoHandler.processSelectedKeysOptimized(NioIoHandler.java:552) [netty-transport-4.2.0.Final.jar:4.2.0.Final] at io.netty.channel.nio.NioIoHandler.processSelectedKeys(NioIoHandler.java:493) [netty-transport-4.2.0.Final.jar:4.2.0.Final] at io.netty.channel.nio.NioIoHandler.run(NioIoHandler.java:470) [netty-transport-4.2.0.Final.jar:4.2.0.Final] at io.netty.channel.SingleThreadIoEventLoop.runIo(SingleThreadIoEventLoop.java:204) [netty-transport-4.2.0.Final.jar:4.2.0.Final] at io.netty.channel.SingleThreadIoEventLoop.run(SingleThreadIoEventLoop.java:175) [netty-transport-4.2.0.Final.jar:4.2.0.Final] at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:1073) [netty-common-4.2.0.Final.jar:4.2.0.Final] at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) [netty-common-4.2.0.Final.jar:4.2.0.Final] at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) [netty-common-4.2.0.Final.jar:4.2.0.Final] at java.lang.Thread.run(Thread.java:840) [?:?] 19:42:13.203 |-DEBUG [NettyServerWorker-5-1] H2_SERVER:214 -| [id: 0x08bce973, L:/192.168.122.75:50052 - R:/192.168.122.75:57032] OUTBOUND GO_AWAY: lastStreamId=0 errorCode=0 length=0 bytes= ``` the code of ```DefaultHttp2FrameReader``` line #271 is ```readContinuationFrame(in, listener)```: ``` private void processPayloadState(ChannelHandlerContext ctx, ByteBuf in, Http2FrameListener listener) throws Http2Exception { ... switch (frameType) { ... case CONTINUATION: readContinuationFrame(in, listener); <== line #271 break; ``` -- This is an automated message from the Apache Git Service. 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