bert82503 opened a new issue, #13714: URL: https://github.com/apache/dubbo/issues/13714
<!-- If you need to report a security issue please visit https://github.com/apache/dubbo/security/policy --> - [ ] I have searched the [issues](https://github.com/apache/dubbo/issues) of this repository and believe that this is not a duplicate. ### Environment * Dubbo version: 3.2.10 * Operating System version: Linux 4.19.91-26.al7.x86_64 * Java version: openjdk-8 1.8.0_333 ### Steps to reproduce this issue 结合下面完整的异常调用栈的dubbo源代码走读看，怀疑ServiceKey为null引起NPE，反推是URL中的path为空。 为何URL的path为空，具体URL是什么？因为生产环境，不好通过arthas在线调试。也没走到Filter拦截器这一层 预发环境，没有出现和复现。 完整的异常调用栈 ``` message: [DUBBO] Decode rpc invocation failed: null, dubbo version: 3.2.10, current host: 192.168.108.146, error code: 4-20. This may be caused by , go to https://dubbo.apache.org/faq/4/20 to find instructions. thread:NettyServerWorker-9-1 logger:org.apache.dubbo.rpc.protocol.dubbo.DecodeableRpcInvocation exception: java.lang.NullPointerException: null at java.util.concurrent.ConcurrentHashMap.get(ConcurrentHashMap.java:936) at org.apache.dubbo.rpc.support.GroupServiceKeyCache.getServiceKey(GroupServiceKeyCache.java:37) at org.apache.dubbo.rpc.support.ProtocolUtils.serviceKey(ProtocolUtils.java:50) at org.apache.dubbo.rpc.protocol.AbstractProtocol.serviceKey(AbstractProtocol.java:85) at org.apache.dubbo.rpc.protocol.dubbo.DubboProtocol.getInvoker(DubboProtocol.java:308) at org.apache.dubbo.rpc.protocol.dubbo.CallbackServiceCodec.decodeInvocationArgument(CallbackServiceCodec.java:386) at org.apache.dubbo.rpc.protocol.dubbo.DecodeableRpcInvocation.decodeArgument(DecodeableRpcInvocation.java:197) at org.apache.dubbo.rpc.protocol.dubbo.DecodeableRpcInvocation.decode(DecodeableRpcInvocation.java:182) at org.apache.dubbo.rpc.protocol.dubbo.DecodeableRpcInvocation.decode(DecodeableRpcInvocation.java:105) at org.apache.dubbo.rpc.protocol.dubbo.DubboCodec.decodeBody(DubboCodec.java:199) at org.apache.dubbo.remoting.exchange.codec.ExchangeCodec.decode(ExchangeCodec.java:137) at org.apache.dubbo.remoting.exchange.codec.ExchangeCodec.decode(ExchangeCodec.java:92) at org.apache.dubbo.rpc.protocol.dubbo.DubboCountCodec.decode(DubboCountCodec.java:59) at org.apache.dubbo.remoting.transport.netty4.NettyCodecAdapter$InternalDecoder.decode(NettyCodecAdapter.java:103) at io.netty.handler.codec.ByteToMessageDecoder.decodeRemovalReentryProtection(ByteToMessageDecoder.java:529) at io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:468) at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:290) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:444) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420) at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:412) at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1410) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:440) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420) at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:919) at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:166) at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:788) at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:724) at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:650) at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:562) at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:997) at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750) ``` Pls. provide [GitHub address] to reproduce this issue. ### Expected Behavior <!-- What do you expect from the above steps？--> ### Actual Behavior <!-- What actually happens? --> If there is an exception, please attach the exception trace: ``` Just put your stack trace here! ``` -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: notifications-unsubscr...@dubbo.apache.org.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: notifications-unsubscr...@dubbo.apache.org For additional commands, e-mail: notifications-h...@dubbo.apache.org
