Unable to load backend.php status: 500

Tiny Tiny RSS Support
1

Describe the problem you’re having:

I’ve updated (pulled from master-branch) and now after login, ttrss stuck at 30% loading, and I get this error in the Browser console

Uncaught (in promise) 
Object { message: "Unable to load backend.php status: 500", stack: "_320@https://rss.example.dev/lib/dojo/dojo.js?1659011047:8:82557\n_49b@https://rss.example.dev/lib/dojo/dojo.js?1659011047:8:128261\n_4a9@https://rss.example.dev/lib/dojo/dojo.js?1659011047:8:128697\nEventListener.handleEvent*_4a2@https://rss.example.dev/lib/dojo/dojo.js?1659011047:8:129213\nxhr@https://rss.example.dev/lib/dojo/dojo.js?1659011047:8:130552\ndojo/_base/xhr/</dojo.xhr@https://rss.example.dev/lib/dojo/dojo.js?1659011047:8:117834\ndojo/_base/xhr/</dojo.xhrPost@https://rss.example.dev/lib/dojo/dojo.js?1659011047:8:118271\npost/<@https://rss.example.dev/js/common.js?1659011047:167:9\npost@https://rss.example.dev/js/common.js?1659011047:163:10\njson/<@https://rss.example.dev/js/common.js?1659011047:189:9\njson@https://rss.example.dev/js/common.js?1659011047:188:10\ninit/<@https://rss.example.dev/js/App.js?1659011047:713:14\nsetupNightModeDetection/link.onload@https://rss.example.dev/js/App.js?1659011047:197:8\nEventHandlerNonNull*setupNightModeDetection@https://rss.example.dev/js/App.js?1659011047:195:7\ninit@https://rss.example.dev/js/App.js?1659011047:694:12\n@https://rss.example.dev/js/tt-rss.js?1659011047:62:8\ndojo/ready/</dojo.addOnLoad/_186<@https://rss.example.dev/lib/dojo/dojo.js?1659011047:8:37803\n_182@https://rss.example.dev/lib/dojo/dojo.js?1659011047:8:37428\nreq.signal/<@https://rss.example.dev/lib/dojo/dojo.js?1659011047:8:4033\n_b@https://rss.example.dev/lib/dojo/dojo.js?1659011047:8:531\nreq.signal@https://rss.example.dev/lib/dojo/dojo.js?1659011047:8:3996\n_38@https://rss.example.dev/lib/dojo/dojo.js?1659011047:8:14153\n_81@https://rss.example.dev/lib/dojo/dojo.js?1659011047:8:14202\n_f6@https://rss.example.dev/lib/dojo/dojo.js?1659011047:8:15985\n_10b@https://rss.example.dev/lib/dojo/dojo.js?1659011047:8:18914\nEventListener.handleEvent*_104@https://rss.example.dev/lib/dojo/dojo.js?1659011047:8:18235\nreq.injectUrl@https://rss.example.dev/lib/dojo/dojo.js?1659011047:8:18933\n_33@https://rss.example.dev/lib/dojo/dojo.js?1659011047:8:16925\n_b@https://rss.example.dev/lib/dojo/dojo.js?1659011047:8:531\n_7c/<@https://rss.example.dev/lib/dojo/dojo.js?1659011047:8:7544\n_38@https://rss.example.dev/lib/dojo/dojo.js?1659011047:8:14100\n_7c@https://rss.example.dev/lib/dojo/dojo.js?1659011047:8:7530\n_17@https://rss.example.dev/lib/dojo/dojo.js?1659011047:8:8197\nreq@https://rss.example.dev/lib/dojo/dojo.js?1659011047:8:760\n@https://rss.example.dev/js/tt-rss.js?1659011047:8:8\n", response: {…}, status: 500, responseText: "{\"init-params\":{\"on_catchup_show_next_feed\":0,\"hide_read_feeds\":0,\"enable_feed_cats\":1,\"feeds_sort_by_unread\":0,\"confirm_feed_catchup\":1,\"cdm_auto_catchup\":0,\"fresh_article_max_age\":48,\"hide_read_shows_special\":1,\"combined_display_mode\":1,\"debug_headline_ids\":0,\"cdm_enable_grid\":0,\"safe_mode\":false,\"check_for_updates\":true,\"icons_url\":\"feed-icons\",\"cookie_lifetime\":86400,\"default_view_mode\":\"adaptive\",\"default_view_limit\":30,\"default_view_order_by\":\"default\",\"bw_limit\":0,\"is_default_pw\":false,\"label_base_index\":-1024,\"theme\":\"\",\"plugins\":\"Auth_Internal, Note, Af_Comics, Af_Readability, Af_Youtube_Embed, Auto_Assign_Labels, Cache_Starred_Images, No_Iframes, Toggle_Sidebar\",\"php_platform\":\"Linux\",\"php_version\":\"7.3.31-1~deb10u1\",\"self_url_prefix\":\"https:\\/\\/rss.example.dev\",\"max_feed_id\":152,\"num_feeds\":106,\"hotkeys\":[[\"c\",\"a\",\"f\",\"g\"],{\"k\":\"next_feed\",\"K\":\"next_unread_feed\",\"j\":\"prev_feed\",\"J\":\"prev_unread_feed\",\"n\":\"next_article_noscroll\",\"p\":\"prev_article_noscroll\",\"N\":\"article_page_…", xhr: XMLHttpRequest }
​
message: "Unable to load backend.php status: 500"
​
response: Object { url: "backend.php", transferType: "download", loaded: 11925, … }
​
responseText: "{\"init-params\":{\"on_catchup_show_next_feed\":0,\"hide_read_feeds\":0,\"enable_feed_cats\":1,\"feeds_sort_by_unread\":0,\"confirm_feed_catchup\":1,\"cdm_auto_catchup\":0,\"fresh_article_max_age\":48,\"hide_read_shows_special\":1,\"combined_display_mode\":1,\"debug_headline_ids\":0,\"cdm_enable_grid\":0,\"safe_mode\":false,\"check_for_updates\":true,\"icons_url\":\"feed-icons\",\"cookie_lifetime\":86400,\"default_view_mode\":\"adaptive\",\"default_view_limit\":30,\"default_view_order_by\":\"default\",\"bw_limit\":0,\"is_default_pw\":false,\"label_base_index\":-1024,\"theme\":\"\",\"plugins\":\"Auth_Internal, Note, Af_Comics, Af_Readability, Af_Youtube_Embed, Auto_Assign_Labels, Cache_Starred_Images, No_Iframes, Toggle_Sidebar\",\"php_platform\":\"Linux\",\"php_version\":\"7.3.31-1~deb10u1\",\"self_url_prefix\":\"https:\\/\\/rss.example.dev\",\"max_feed_id\":152,\"num_feeds\":106,\"hotkeys\":[[\"c\",\"a\",\"f\",\"g\"],{\"k\":\"next_feed\",\"K\":\"next_unread_feed\",\"j\":\"prev_feed\",\"J\":\"prev_unread_feed\",\"n\":\"next_article_noscroll\",\"p\":\"prev_article_noscroll\",\"N\":\"article_page_…"
​
stack: "_320@https://rss.example.dev/lib/dojo/dojo.js?1659011047:8:82557\n_49b@https://rss.example.dev/lib/dojo/dojo.js?1659011047:8:128261\n_4a9@https://rss.example.dev/lib/dojo/dojo.js?1659011047:8:128697\nEventListener.handleEvent*_4a2@https://rss.example.dev/lib/dojo/dojo.js?1659011047:8:129213\nxhr@https://rss.example.dev/lib/dojo/dojo.js?1659011047:8:130552\ndojo/_base/xhr/</dojo.xhr@https://rss.example.dev/lib/dojo/dojo.js?1659011047:8:117834\ndojo/_base/xhr/</dojo.xhrPost@https://rss.example.dev/lib/dojo/dojo.js?1659011047:8:118271\npost/<@https://rss.example.dev/js/common.js?1659011047:167:9\npost@https://rss.example.dev/js/common.js?1659011047:163:10\njson/<@https://rss.example.dev/js/common.js?1659011047:189:9\njson@https://rss.example.dev/js/common.js?1659011047:188:10\ninit/<@https://rss.example.dev/js/App.js?1659011047:713:14\nsetupNightModeDetection/link.onload@https://rss.example.dev/js/App.js?1659011047:197:8\nEventHandlerNonNull*setupNightModeDetection@https://rss.example.dev/js/App.js?1659011047:195:7\ninit@https://rss.example.dev/js/App.js?1659011047:694:12\n@https://rss.example.dev/js/tt-rss.js?1659011047:62:8\ndojo/ready/</dojo.addOnLoad/_186<@https://rss.example.dev/lib/dojo/dojo.js?1659011047:8:37803\n_182@https://rss.example.dev/lib/dojo/dojo.js?1659011047:8:37428\nreq.signal/<@https://rss.example.dev/lib/dojo/dojo.js?1659011047:8:4033\n_b@https://rss.example.dev/lib/dojo/dojo.js?1659011047:8:531\nreq.signal@https://rss.example.dev/lib/dojo/dojo.js?1659011047:8:3996\n_38@https://rss.example.dev/lib/dojo/dojo.js?1659011047:8:14153\n_81@https://rss.example.dev/lib/dojo/dojo.js?1659011047:8:14202\n_f6@https://rss.example.dev/lib/dojo/dojo.js?1659011047:8:15985\n_10b@https://rss.example.dev/lib/dojo/dojo.js?1659011047:8:18914\nEventListener.handleEvent*_104@https://rss.example.dev/lib/dojo/dojo.js?1659011047:8:18235\nreq.injectUrl@https://rss.example.dev/lib/dojo/dojo.js?1659011047:8:18933\n_33@https://rss.example.dev/lib/dojo/dojo.js?1659011047:8:16925\n_b@https://rss.example.dev/lib/dojo/dojo.js?1659011047:8:531\n_7c/<@https://rss.example.dev/lib/dojo/dojo.js?1659011047:8:7544\n_38@https://rss.example.dev/lib/dojo/dojo.js?1659011047:8:14100\n_7c@https://rss.example.dev/lib/dojo/dojo.js?1659011047:8:7530\n_17@https://rss.example.dev/lib/dojo/dojo.js?1659011047:8:8197\nreq@https://rss.example.dev/lib/dojo/dojo.js?1659011047:8:760\n@https://rss.example.dev/js/tt-rss.js?1659011047:8:8\n"
​
status: 501
​
xhr: XMLHttpRequest { readyState: 4, timeout: 0, withCredentials: false, … }
​
<prototype>: Object { name: "RequestError", constructor: _320(_321), stack: "" }

tt-rss version (including git commit id):

master, cbf7101

Platform (i.e. Linux distro, PHP, PostgreSQL, etc) versions:

Debian 11, PHP 7.3, PostgreSQL 9.2, lighttpd

Please provide any additional information below:

Tried in different browsers, incl. clearing browser cache.

I assume file permissions are fine since user running is www-data

/var/www/rss# ls -l | grep back
-rw-r--r--  1 www-data www-data  4781 Jul 28 14:24 backend.php
2

next time pay more attention to this forum before updating to master blindly.

e: properly check for baseline required PHP version (7.4) · 4aefbd628e - tt-rss - Tiny Tiny RSS

3

I notice that the docker-compose repo updates master blindly on every restart ttrss-docker-compose/startup.sh at 679792df76f2acad3bb1acaef4cbea5b2b05a515 - ttrss-docker-compose - Tiny Tiny RSS

If we feel like that’s not good practice should we start having stable version tags instead, and have the script pull the latest stable rather than master?

4

compose setup runs in a controlled environment.

we have tagged, revertable docker hub images, built by CI pipelines.

now, fuck off of my forum and go be willfully ignorant somewhere else.