Purge Category Issue - 502 Bad Gateway
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Purging a category caused the following error. Categories list no lonnger loads.
Now the log shows this error.
system details
NodeBB - v1.0.3
Ubuntu 14.04.04 LTS
Nginix5/5 13:50 [2606] - error: TypeError: Cannot read property 'children' of undefined
at Object.helpers.generateChildrenCategories (/var/www/nodebb/public/src/modules/helpers.js:107:11)
at callMethod (/var/www/nodebb/node_modules/templates.js/lib/templates.js:279:17)
at parseFunctions (/var/www/nodebb/node_modules/templates.js/lib/templates.js:303:55)
at parseArrayBlock (/var/www/nodebb/node_modules/templates.js/lib/templates.js:380:14)
at parseArray (/var/www/nodebb/node_modules/templates.js/lib/templates.js:346:13)
at parse (/var/www/nodebb/node_modules/templates.js/lib/templates.js:416:16)
at parseTemplate (/var/www/nodebb/node_modules/templates.js/lib/templates.js:133:14)
at Object.templates.parse (/var/www/nodebb/node_modules/templates.js/lib/templates.js:119:11)
at /var/www/nodebb/node_modules/templates.js/lib/templates.js:169:30
at FSReqWrap.readFileAfterClose [as oncomplete] (fs.js:380:3)
TypeError: Cannot read property 'children' of undefined
at Object.helpers.generateChildrenCategories (/var/www/nodebb/public/src/modules/helpers.js:107:11)
at callMethod (/var/www/nodebb/node_modules/templates.js/lib/templates.js:279:17)
at parseFunctions (/var/www/nodebb/node_modules/templates.js/lib/templates.js:303:55)
at parseArrayBlock (/var/www/nodebb/node_modules/templates.js/lib/templates.js:380:14)
at parseArray (/var/www/nodebb/node_modules/templates.js/lib/templates.js:346:13)
at parse (/var/www/nodebb/node_modules/templates.js/lib/templates.js:416:16)
at parseTemplate (/var/www/nodebb/node_modules/templates.js/lib/templates.js:133:14)
at Object.templates.parse (/var/www/nodebb/node_modules/templates.js/lib/templates.js:119:11)
at /var/www/nodebb/node_modules/templates.js/lib/templates.js:169:30
at FSReqWrap.readFileAfterClose [as oncomplete] (fs.js:380:3)
5/5 13:50 [2606] - info: [app] Shutdown (SIGTERM/SIGINT) Initialised.
5/5 13:50 [2606] - info: [app] Database connection closed.
5/5 13:50 [2606] - info: [app] Web server closed to connections.
5/5 13:50 [2606] - info: [app] Shutdown complete.
[cluster] Child Process (2606) has exited (code: 1, signal: null)
[cluster] Spinning up another process...
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Should be fixed in master and 1.x.x can you update and try again.
Were there any errors when you purged the category?
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Thanks! The upgrade from master fixed the issue.
Sorry could not capture the error logs. But the issue was caused upon adding a new child category it showed duplicate child categories and upon deleting the duplicates it caused the issue. Hope this helps.
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After the upgrade now we have 2 zombie categories. Anyway to remove that?
These are not shown in admin only in categories list.
thanks
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Having the same issue as well! I am going to go ahead and upgrade to master, as well.
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Do you have reproduction steps to cause duplicate categories? And does it happen on master?
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Sorry. I don't have specific reproduction steps . No it does not happen after the master upgrade. Now i am facing another issue part from the zombie categories. If i create new category and inherit from existing category it does not show in front end and shows only in the admin categories list.
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If your forum is public post a link to it so we can take a look.
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It is not a public forum.
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Maybe try the solutions here https://community.nodebb.org/topic/3342/issue-with-categories-forums-won-t-display-the-homepage-anymore
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I updated to master and made the most recent pulls.
I also have 2 empty ghost categories
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@h0lybyte Which database are you using? You can remove the ghost categories from the correct sorted set to get rid of them.
