{"record":{"id":"ebbf3bee710e572a","repo":"XTLS/Xray-core","slug":"failed-to-write-request","errorCode":null,"errorMessage":"failed to write request","messagePattern":"failed to write request","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"error","filePath":"proxy/hysteria/client.go","lineNumber":95,"sourceCode":"\tctx, cancel := context.WithCancel(ctx)\n\ttimer := signal.CancelAfterInactivity(ctx, func() {\n\t\tcancel()\n\t\tif newCancel != nil {\n\t\t\tnewCancel()\n\t\t}\n\t}, sessionPolicy.Timeouts.ConnectionIdle)\n\n\tif newCtx != nil {\n\t\tctx = newCtx\n\t}\n\n\tif target.Network == net.Network_TCP {\n\t\trequestDone := func() error {\n\t\t\tdefer timer.SetTimeout(sessionPolicy.Timeouts.DownlinkOnly)\n\t\t\tbufferedWriter := buf.NewBufferedWriter(buf.NewWriter(conn))\n\t\t\terr := WriteTCPRequest(bufferedWriter, target.NetAddr())\n\t\t\tif err != nil {\n\t\t\t\treturn errors.New(\"failed to write request\").Base(err)\n\t\t\t}\n\t\t\tif err := bufferedWriter.SetBuffered(false); err != nil {\n\t\t\t\treturn err\n\t\t\t}\n\t\t\treturn buf.Copy(link.Reader, bufferedWriter, buf.UpdateActivity(timer))\n\t\t}\n\n\t\tresponseDone := func() error {\n\t\t\tdefer timer.SetTimeout(sessionPolicy.Timeouts.UplinkOnly)\n\t\t\tok, msg, err := ReadTCPResponse(conn)\n\t\t\tif err != nil {\n\t\t\t\treturn err\n\t\t\t}\n\t\t\tif !ok {\n\t\t\t\treturn errors.New(msg)\n\t\t\t}\n\t\t\treturn buf.Copy(buf.NewReader(conn), link.Writer, buf.UpdateActivity(timer))\n\t\t}","sourceCodeStart":77,"sourceCodeEnd":113,"githubUrl":"https://github.com/XTLS/Xray-core/blob/7d214f8b094f75322fa3990f8aadad1c912f24f5/proxy/hysteria/client.go#L77-L113","documentation":"Error \"failed to write request\" thrown in XTLS/Xray-core.","triggerScenarios":"Thrown at proxy/hysteria/client.go:95 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":[],"exampleFix":null,"handlingStrategy":null,"validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"7d214f8b094f75322fa3990f8aadad1c912f24f5","analyzedAt":"2026-08-15T14:26:24.325Z","schemaVersion":2},"datasetVersion":"2026-08-15T22:17:37.221Z"}