Thanks hugely Mark.
I considered turning MODx sessions off, but web users can log into specific parts of the site to access protected pages/resources, so I believe I need them. Anyway if the session records aren't causing the document list to disappear, and don't alarm a MODx expert, and don't grow indefinitely (currently 16,000 since Friday), then I'm perfectly happy to have them.
I have tracked down and removed the getDocumentObject error. In the upgrade I missed an old resource calling an Evo snippet. Despite the fatal error the page displayed fine. (Big up to MODx for that!)
I thought this had returned, but I'd jumped to the conclusion - turned out to be a browser caching something in ExtJS - different browser worked - very sorry.
Any tips on debugging this? I will have maybe a couple hours before clients will want setup run, so I'd like to churn out as much logging as possible. Tried adding ini_set('display_errors', 1); error_reporting(E_ALL); to manager/index.php and connector/index.php but nothing was displayed in the browser or logged in cache/log/error.log.
(Ignore the rest...)
However example.com/custom-connector-dir/system/phpinfo.php returns JSON {"success":false,"message":"Access denied.","total":0,"data":[],"object":{"code":401}} - as does clicking it from within Manager/System Info.
The problem has returned. This time it looks more obviously like a connector issue, in that the Resources/Elements list appears but is empty, as are "Whose online", "Recently edited resources" and "Recent resource changes" on the dashboard. Components menu is populated. config.inc.php contains exactly what it did last time, and is letting me log in so database, core, etc all ok. 3 x config.core.php are all correct. Changing $modx_cache_disabled= true; in config.inc.php doesn't help. Flushing sessions in manager doesn't appear to do anything - I'm still logged in and the session table is still 16,366 records big. Nothing in the MODx error logs:
[2014-01-21 10:24:38] (ERROR @ /customized-connector-dir/resource/index.php) Could not cache context settings for web.
[2014-01-21 10:29:30] (ERROR @ /home/sites/example.com/core/xpdo/cache/xpdocachemanager.class.php : 510) PHP warning: unlink(/home/sites/example.com/core/cache/resource/web/resources/302/77e3bfd424401886e0935617fa44a0b4.cache.php) [<a href='function.unlink'>function.unlink</a>]: No such file or directory
[2014-01-21 10:29:30] (ERROR @ /home/sites/example.com/core/xpdo/cache/xpdocachemanager.class.php : 518) PHP warning: closedir(): 181 is not a valid Directory resource
The connector directory is a random string of 9 alphanumerics, set correctly in config.inc.php both $modx_connectors_path and $modx_connectors_url with leading and trailing '/'. What could be overriding this setting after a couple days' usage?? Or is connector somehow losing its ability to connect to the database? Or to authenticate AJAX requests?
When I view source then look at the output of some of the connector calls, they do contain JSON data:
example.com/custom-connector-dir/layout/modx.config.js.php?action=&wctx=mgr it does include data from the session.
example.com/custom-connector-dir/lang.js.php?ctx=mgr&topic=topmenu,file,resource,welcome,configcheck,gallery:default&action= contains what looks like lexicon data.
[ed. note: technicaltitch last edited this post 10 years, 2 months ago.]
