Azure 部署ASP.Net后服务应用不可用 Web 核心应用

Question

我已经部署了一个 ASP.NET 核心 web 应用程序，目标是 .NET 7.0。 该应用程序在 Visual Studio 中运行良好。 但是，当部署到 Azure App Service 时，我会在启动应用程序并点击一下后收到一条简单的“服务不可用”消息。 它随机发生......没有导致这种情况的模式。 我重新启动应用程序服务，单击或两次后应用程序将正常工作，然后再次出现此消息并且应用程序已关闭。 当我检查 Application Insights 时没有失败。 我试图在不改变行为的情况下进行缩放/放大/缩小/缩小。 我目前不使用应用程序网关或前门。

应用服务设置

Connecting...
2023-01-27T20:24:07  Welcome, you are now connected to log-streaming service. The default timeout is 2 hours. Change the timeout with the App Setting SCM_LOGSTREAM_TIMEOUT (in seconds).
2023-01-27 20:23:55 ~1DATAMAGNIFIERADMIN GET /api/logstream/ X-ARR-LOG-ID=cf48d177-921a-4dc5-9446-9b629859c8a3 443 - 73.84.82.7 Mozilla/5.0+(Windows+NT+10.0;+Win64;+x64)+AppleWebKit/537.36+(KHTML,+like+Gecko)+Chrome/109.0.0.0+Safari/537.36+Edg/109.0.1518.55 - - datamagnifieradmin.scm.azurewebsites.net 200 0 64 1126 1495 66236
2023-01-27 20:24:55 ~1DATAMAGNIFIERADMIN GET /api/logstream/http X-ARR-LOG-ID=b8b63d16-153b-4d16-a000-ad454543b9fb 443 - 73.84.82.7 Mozilla/5.0+(Windows+NT+10.0;+Win64;+x64)+AppleWebKit/537.36+(KHTML,+like+Gecko)+Chrome/109.0.0.0+Safari/537.36+Edg/109.0.1518.55 - - datamagnifieradmin.scm.azurewebsites.net 200 0 64 5659 1507 71199
2023-01-27 20:25:44 DATAMAGNIFIERADMIN GET /AdUsers X-ARR-LOG-ID=7579c45a-1658-493f-8a77-c8adabb8378d 443 - 73.84.82.7 Mozilla/5.0+(Windows+NT+10.0;+Win64;+x64)+AppleWebKit/537.36+(KHTML,+like+Gecko)+Chrome/109.0.0.0+Safari/537.36+Edg/109.0.1518.55 ARRAffinity=92ca53ad8db4fbb93d4d3b7d8ab54dcf8ffecb2d731f25b0e91ad575d7534c3f;+ARRAffinitySameSite=92ca53ad8db4fbb93d4d3b7d8ab54dcf8ffecb2d731f25b0e91ad575d7534c3f;+ARRAffinity=fd3e4b2d012080ee1ba6f00bb456f71017e9bb5bc3d7d8b6d99a3e13ad27cbf0;+ARRAffinitySameSite=fd3e4b2d012080ee1ba6f00bb456f71017e9bb5bc3d7d8b6d99a3e13ad27cbf0;+.AspNetCore.Session=CfDJ8K%2BoVdxUgaZHkxTXB5kqCDNFs2m9QjxHt1tYfSELbYcsWLq8nj7Eo5jQXYS7eENpIxdt3nHQVe0LoiKArNJ5CnjaQ41l4p9XSqRN0cqe%2Fvs94Drsjw5DeUlHSyLG1eRkG2%2Fiu74ox1VqbzsvmO0GNcQH4u1i1e9xvW%2FZcxJEfzQL;+ai_user=EUSRJlOpuAOSDnWBOJ11nl|2023-01-26T18:52:35.633Z;+.AspNetCore.Cookies=CfDJ8K-oVdxUgaZHkxTXB5kqCDPwHEIChhppdJqUAniIH-zNeCI_31qKsDyys_qu4PJ1a11bQi3EMIuZ9ysNch9tPboNBxNPKY_fB4raf2PLTZAk4OKw5BzfkYkAEcOkX4FPojNDrsTfza_Se2oFIvKoa1_mNF_tWCIhGdnQTltZOaqijKxw-aJujl5vPa2-vVNscioSHSrbuYzqEpTT3lzyahrB4ZgN9JTgoz-upzD23H7T7Apg9ILYAB49C64LD1HCJWYeWIjV-0qYkf8uXgUt8TfVB79kwNPQs17E6oTLzeo9kMwzhNa9ACl9S5r69lZT2lzFkMOL85P_CbNMeHvQ3C6RCYfBzpSVDnla4SfEnxDqP0sEWZXUL0DJSAIoa9j1Olu6nusUQbrWXMPmoMDzU7dmXlghyO126ze-KOp92JPqEa_nvlLvO018iNRBms1trqaape5cd6Lpeaxv8zeD5hCyAqd7tpY1P3SNdGjpdyBb7LCCH4vkC0i5QKs-tQxc0YUnY6bs2b475Vl5lZcKHXdFUqVuQAqs0udu9nyWCyBmUDG-1C4hU3SPhAyVUcfrqu1UucuTTYzSkHI01_hwBVtI8rmS5pvFQXr2Qa9ARQkoObkyzxCQ5ebLWl63L1ZY2zauRCQDdp0D7tDImvPxnC8BfnqiOJjC5FNWDhUdli_jT-1qVJfcZ2rTj12037DyC5RY9oye7PNtW1VU8EndbxIbjV21D2XypDYUAWO6ynv9kB6EI7Qqy6oqNLS93dt0hp_lzBW1es6tIssNwV27u7Tl1vHh33tWzEQmMmIwl3DQ2tEGsQMKEI7MuwOE5U77uJweda3dIcq0C-4CbBa2Q1fHms3nX2txzuee3L2ARWjUcsuy5u7lnokAzNNBIbvoOCTkD1DJk_ZTkbyEk8PENZ7q04pknr6qlwgMVJXtz9-qlFxbpnJyXnAzy2Z5C3EeWDUjroYmhjjJ1Y-E7fWZ4dX4sZRFEodO8YCv7-9ztEITxCScTRccWd3XzXv69P11BSajtorrRgJHRfPukg5lLMJF15jmJyQFuQEYBKvVXQBr_25Lyl2WPdBzsj1ThCYtO1Ux-QLtstOrj5beWD-mEpnMsmVG1Ad5w0odhEYWYTZgZ2kw-W4Gtpr_745oDpvuE3ug2zuR1yRtpazQdwKA716q9Hq8leDRmfrmPjtgLeg8qtTMLRp2a63ES5oqX1XGP66164VcurQODjhtXDIcqJQq83xMmL-64pu584FRNRn2oNXSphmvh-qrxxH_1YVnjBFFlteo0qhvEF98pjG0mn5JqgtQiqLwdAbEghon0WWMPYTuFu7bCBSvR8P3w0Ahn47udrkijxySsD013O0ugO-gP3BcqCvTKC6OrxPjuou6Zv4BhnXU8666n57RCDJbf-ul64dGlejPhap6IfGTj9NCOChwZL2RdqjtGC8q96m2sCIvB60J6CSao1HhAknIMYCimmgEA0cuSprg6rH7MCvkcKIGleri3caBLnEYiWXvykEvsQgVWhKSH0R7lwU5CjC05NOWVZAjI8CMn8sU4UOm_CoYsB59jgc9J2bce2iBtaI84RzNbw58okQhUdYVpn1yUgQBtvLzhnHz7yCCAqhTbzlnfbmcLB56XCgqdMC1rmgFOyAi-oa9QWCMzmEheHTFoyrlDg5yzKGEv675p1JL0owQOtPdILYnY65InsufpSKd7yFbY6hTJpc0WLDiSotZhIlGNE8n5pex28g7oILpt8G0LMpb96VH-8ZYLaIaunBeB7fhCrL3ZczOcAW_vhGW3kd3eCVeF9XDTNjayhIJxlcIbYvCb1HwSzEEI3qh8V3NyKAEg-aOTN-oiMMZjQlpZ2EbfGVL44VtCubJI2zKYEBAm90ppcF4CtmdznUI98Sp4WyDRzHrlkMMRqZ8gBOJ6AHajv1JZh-bQ7Vv48_AfGc7rX4FSml4fWhaqIFij3jBZkK_eWdZSSNGoKVlMmUyD_-D9Yi9lC5hZ0kFWjGTR5l1LCIzI8ZyXcQR-DddhjcxQKPzIB1W1EYKDIaoS4bZoMsEvZeL0_vKQywCzvy88v_rydWi7Vgyw6mYbeiGTX3QbsVkAbTACsP6QfyP4_Bx2pVs9p4peQlmJr_L_vHhVHPp1itz-B1aJmZO_JK1FRV41qqPXg1QDW6kxelwxmpPtar1JnpHCDUPiaHD3wAOhdRL7JSKHzsoZrB5Aiv6ii70qOJwkYZHxxStLYewp90Xrur9bh7OMv59k4gUSsd-Ru9dBK9ChjBJYNkYOfMHCi0XZaJ_7xYg79E0UbIxAOuirL33HYLg7ojemp3_0e9aBhuuHIi8tEpIyVlqv8blWsGdMdH7WpO4qiSGYjjFpOQT3Q61BWIGXAf5ME0jEE3sLgZWc3s7KGMjJiL4f0LAsjoVNlTJTYqsj7eXrb3bXCOiWcAHrTIP8DQCHxdqghuKwrsBcZsl_caoFtD3Y4n2081CJwWG8zQ2gdA7XXUjUwdabHgf2Exf0u0vQ9nC9tFb-Tyd5hHe98sNkPGHA4sMZNMw6_pXa0EowyE25M_pzP1_w65PsEMXChuAoHhuzx-A9-PibgEdRei7wz1LEMxlmW3PGKSictUo8ulKc-gUsWZ02xbHgdO16ArFZ0qzMFlG4Uq89RafsGEcaaH2zIjz-Dk5wu0ssv0nLu0urHD_6_eFpA3ZoT6lZFefIXYEslozScRsdJn4Y3dgk0PPktTAHC-fiTVCVOQVgIaZwP2YUZrTrauibTcwFhOH8zqwMPW70hTf3NfQ1RKMhUCKUpiq5xFOj7wl-dBstvP5r0CfQktzQUo0S8vHzOnm87-NG6ZFAmZQFH2HW7TuIZQsug8lwtagAE28V_iwW01by34nN4f0AfdOh4pL_FDRkjHw80AmoYgR-s8pIoDlQWqFsfOeOsyX-e0TqCeLneSigjEZ8mvzyCYyegll0vwAGAeNUkgidMss4hQB7pjF8nGdFdVg_7mO-70XfnNeAeFZcFp9etsbvUWpKtWH50EtVBP68dI;+.AspNetCore.Antiforgery.cdV5uW_Ejgc=CfDJ8K-oVdxUgaZHkxTXB5kqCDPyuX47rnbJlggAPR8af6SEqDkVGkT30QvUXdrJ7GyJxffRsElqUZS41a3-955Z01xrG28cdYLcVFCROPjdqBeanz18i3WWyoO3j2aRo3kgrlH8O3OHrGqsW9kZ2vuAqZ8 https://www.datamagnifierportal.com/ www.datamagnifierportal.com 200 0 0 5077 5267 5099
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<html xmlns="http://www.w3.org/1999/xhtml"><head><title>IIS Detailed Error - 503.0 - Server has been shutdown</title><style type="text/css"><!--body{margin:0;font-size:.7em;font-family:Verdana,Arial,Helvetica,sans-serif;}code{margin:0;color:#006600;font-size:1.1em;font-weight:bold;}.config_source code{font-size:.8em;color:#000000;}pre{margin:0;font-size:1.4em;word-wrap:break-word;}ul,ol{margin:10px 0 10px 5px;}ul.first,ol.first{margin-top:5px;}fieldset{padding:0 15px 10px 15px;word-break:break-all;}.summary-container fieldset{padding-bottom:5px;margin-top:4px;}legend.no-expand-all{padding:2px 15px 4px 10px;margin:0 0 0 -12px;}legend{color:#333333;;margin:4px 0 8px -12px;_margin-top:0px;font-weight:bold;font-size:1em;}a:link,a:visited{color:#007EFF;font-weight:bold;}a:hover{text-decoration:none;}h1{font-size:2.4em;margin:0;color:#FFF;}h2{font-size:1.7em;margin:0;color:#CC0000;}h3{font-size:1.4em;margin:10px 0 0 0;color:#CC0000;}h4{font-size:1.2em;margin:10px 0 5px 0;}#header{width:96%;margin:0 0 0 0;padding:6px 2% 6px 2%;font-family:"trebuchet MS",Verdana,sans-serif;color:#FFF;background-color:#5C87B2;}#content{margin:0 0 0 2%;position:relative;}.summary-container,.content-container{background:#FFF;width:96%;margin-top:8px;padding:10px;position:relative;}.content-container p{margin:0 0 10px 0;}#details-left{width:35%;float:left;margin-right:2%;}#details-right{width:63%;float:left;overflow:hidden;}#server_version{width:96%;_height:1px;min-height:1px;margin:0 0 5px 0;padding:11px 2% 8px 2%;color:#FFFFFF;background-color:#5A7FA5;border-bottom:1px solid #C1CFDD;border-top:1px solid #4A6C8E;font-weight:normal;font-size:1em;color:#FFF;text-align:right;}#server_version p{margin:5px 0;}table{margin:4px 0 4px 0;width:100%;border:none;}td,th{vertical-align:top;padding:3px 0;text-align:left;font-weight:normal;border:none;}th{width:30%;text-align:right;padding-right:2%;font-weight:bold;}thead th{background-color:#ebebeb;width:25%;}#details-right th{width:20%;}table tr.alt td,table tr.alt th{}.highlight-code{color:#CC0000;font-weight:bold;font-style:italic;}.clear{clear:both;}.preferred{padding:0 5px 2px 5px;font-weight:normal;background:#006633;color:#FFF;font-size:.8em;}--></style>
</head><body><div id="content"><div class="content-container"><h3>HTTP Error 503.0 - Server has been shutdown</h3><h4>The service is unavailable.</h4></div><div class="content-container"><fieldset><h4>Most likely causes:</h4><ul>   <li>An invalid identity in the application pool could cause this error.</li>    <li>The application pool is no longer running because of configuration or reaching application failure limits.</li>     <li>The concurrent application request limit was reached.</li> </ul></fieldset></div><div class="content-container"><fieldset><h4>Things you can try:</h4><ul>  <li>Check the event logs and the HTTP error logs for more information.</li> </ul></fieldset></div>
<div class="content-container"><fieldset><h4>Detailed Error Information:</h4><div id="details-left"><table border="0" cellpadding="0" cellspacing="0"><tr class="alt"><th>Module</th><td>&nbsp;&nbsp;&nbsp;AspNetCoreModuleV2</td></tr><tr><th>Notification</th><td>&nbsp;&nbsp;&nbsp;ExecuteRequestHandler</td></tr><tr class="alt"><th>Handler</th><td>&nbsp;&nbsp;&nbsp;aspNetCore</td></tr><tr><th>Error Code</th><td>&nbsp;&nbsp;&nbsp;0x8007045b</td></tr>
</table></div><div id="details-right"><table border="0" cellpadding="0" cellspacing="0"><tr class="alt"><th>Requested URL</th><td>&nbsp;&nbsp;&nbsp;https://DataMagnifierAdmin:80/Customers</td></tr><tr><th>Physical Path</th><td>&nbsp;&nbsp;&nbsp;C:\home\site\wwwroot\Customers</td></tr><tr class="alt"><th>Logon Method</th><td>&nbsp;&nbsp;&nbsp;Anonymous</td></tr><tr><th>Logon User</th><td>&nbsp;&nbsp;&nbsp;Anonymous</td></tr>
</table><div class="clear"></div></div></fieldset></div>
<div class="content-container"><fieldset><h4>More Information:</h4>This error occurs when the worker process was unable to start. This could be due to an invalid identity or configuration, or because the concurrent request limit was reached.<p><a href="http://go.microsoft.com/fwlink/?LinkID=62293&amp;IIS70Error=503,0,0x8007045b,14393">View more information &raquo;</a></p><p>Microsoft Knowledge Base Articles:</p>
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