lxkaka opened a new issue #5711: through pulsar proxy visit api return 502 URL: https://github.com/apache/pulsar/issues/5711 **Describe the bug** through proxy call admin api return error_code 502 ``` curl -i http://proxy-address/admin/v2/persistent/public/default HTTP/1.1 502 Bad Gateway Date: Thu, 21 Nov 2019 03:09:30 GMT Content-Type: text/html;charset=iso-8859-1 Content-Length: 355 Connection: keep-alive Cache-Control: must-revalidate,no-cache,no-store <html> <head> <meta http-equiv="Content-Type" content="text/html;charset=utf-8"/> <title>Error 502 Bad Gateway</title> </head> <body><h2>HTTP ERROR 502</h2> <p>Problem accessing /admin/v2/persistent/public/default. Reason: <pre> Bad Gateway</pre></p><hr><a href="http://eclipse.org/jetty";>Powered by Jetty:// 9.4.12.v20180830</a><hr/> </body> </html> ``` **Expected behavior** expect return 200 and valid response **Environment ** - deploy in k8s and image is `puslar-all:2.4.1` **Additional context** pulsar proxy logs ``` at io.netty.channel.unix.FileDescriptor.readAddress(..)(Unknown Source) ~[io.netty-netty-all-4.1.32.Final.jar:4.1.32.Final] 02:24:39.865 [pulsar-discovery-io-2-1] WARN org.apache.pulsar.proxy.server.ProxyConnection - [/172.19.25.180:46476] Got exception NativeIoException : syscall:read(..) failed: Connection reset by peer 02:24:39.865 [pulsar-discovery-io-2-1] INFO org.apache.pulsar.proxy.server.ProxyConnection - [/172.19.25.180:46476] Connection closed 02:24:40.057 [pulsar-discovery-io-2-1] INFO org.apache.pulsar.proxy.server.ProxyConnection - [/172.19.25.229:53780] New connection opened 02:24:40.057 [pulsar-discovery-io-2-1] WARN io.netty.channel.DefaultChannelPipeline - An exceptionCaught() event was fired, and it reached at the tail of the pipeline. It usually means the last handler in the pipeline did not handle the exception. io.netty.channel.unix.Errors$NativeIoException: syscall:read(..) failed: Connection reset by peer at io.netty.channel.unix.FileDescriptor.readAddress(..)(Unknown Source) ~[io.netty-netty-all-4.1.32.Final.jar:4.1.32.Final] 02:24:40.057 [pulsar-discovery-io-2-1] WARN org.apache.pulsar.proxy.server.ProxyConnection - [/172.19.25.229:53780] Got exception NativeIoException : syscall:read(..) failed: Connection reset by peer 02:24:40.057 [pulsar-discovery-io-2-1] INFO org.apache.pulsar.proxy.server.ProxyConnection - [/172.19.25.229:53780] Connection closed 02:24:40.067 [pulsar-discovery-io-2-1] INFO org.apache.pulsar.proxy.server.ProxyConnection - [/192.168.64.129:44812] New connection opened 02:24:40.067 [pulsar-discovery-io-2-1] WARN io.netty.channel.DefaultChannelPipeline - An exceptionCaught() event was fired, and it reached at the tail of the pipeline. It usually means the last handler in the pipeline did not handle the exception. io.netty.channel.unix.Errors$NativeIoException: syscall:read(..) failed: Connection reset by peer ```
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