Node bb getting shutdown due to markdown plugin and 2 services try to restart it but it fails.

faizanzahid

2018-04-18T05:20:30.818Z [21020] - [32minfo[39m: [app] Database connection closed.
2018-04-18T05:20:30.819Z [21020] - [32minfo[39m: [app] Web server closed to connections.
2018-04-18T05:20:30.819Z [21020] - [32minfo[39m: [app] Shutdown complete.
2018-04-18T05:20:31.772Z [4660] - [32minfo[39m: Initializing NodeBB v1.8.1 https://chatrooms.talkwithstranger.com
2018-04-18T05:20:33.908Z [4660] - [33mwarn[39m: [upgrade/appendPluginScripts] Unable to read plugin.json for plugin `nodebb-plugin-save-plugins`. Skipping.
2018-04-18T05:20:33.925Z [4660] - [33mwarn[39m: [upgrade/appendPluginScripts] Unable to read plugin.json for plugin `nodebb-plugin-tws`. Skipping.
2018-04-18T05:20:34.457Z [4660] - [32minfo[39m: [socket.io] Restricting access to origin: https://chatrooms.talkwithstranger.com:*
2018-04-18T05:20:35.438Z [4660] - [32minfo[39m: [plugins/Giphy] Initializing with API key: dc6zaTOxFJmzC
2018-04-18T05:20:35.438Z [4660] - [33mwarn[39m: [plugins/Giphy] API key is still set to the public beta key
2018-04-18T05:20:35.530Z [4660] - [32minfo[39m: Routes added
2018-04-18T05:20:35.538Z [4660] - [32minfo[39m: NodeBB Ready
2018-04-18T05:20:35.546Z [4660] - [32minfo[39m: Enabling 'trust proxy'
2018-04-18T05:20:35.551Z [4660] - [32minfo[39m: NodeBB is now listening on: 0.0.0.0:4567
2018-04-18T05:20:40.686Z [4660] - [31merror[39m:  TypeError: Cannot read property 'hasOwnProperty' of null
    at postParse (/var/www/nodebb/node_modules/nodebb-plugin-markdown/index.js:181:14)
    at /var/www/nodebb/node_modules/async/dist/async.js:66:19
    at nextTask (/var/www/nodebb/node_modules/async/dist/async.js:5310:14)
    at next (/var/www/nodebb/node_modules/async/dist/async.js:5317:9)
    at /var/www/nodebb/node_modules/async/dist/async.js:958:16
    at _combinedTickCallback (internal/process/next_tick.js:138:11)
    at process._tickCallback (internal/process/next_tick.js:180:9)
2018-04-18T05:20:40.687Z [4660] - [32minfo[39m: [app] Shutdown (SIGTERM/SIGINT) Initialised.
2018-04-18T05:20:40.688Z [4660] - [32minfo[39m: [app] Database connection closed.
2018-04-18T05:20:40.688Z [4660] - [32minfo[39m: [app] Web server closed to connections.
2018-04-18T05:20:40.688Z [4660] - [32minfo[39m: [app] Shutdown complete.
2018-04-18T05:20:41.342Z [4701] - [32minfo[39m: Initializing NodeBB v1.8.1 https://chatrooms.talkwithstranger.com
2018-04-18T05:20:42.803Z [4701] - [33mwarn[39m: [upgrade/appendPluginScripts] Unable to read plugin.json for plugin `nodebb-plugin-save-plugins`. Skipping.
2018-04-18T05:20:42.807Z [4701] - [33mwarn[39m: [upgrade/appendPluginScripts] Unable to read plugin.json for plugin `nodebb-plugin-tws`. Skipping.
2018-04-18T05:20:43.109Z [4701] - [32minfo[39m: [socket.io] Restricting access to origin: https://chatrooms.talkwithstranger.com:*
2018-04-18T05:20:43.824Z [4701] - [32minfo[39m: [plugins/Giphy] Initializing with API key: dc6zaTOxFJmzC
2018-04-18T05:20:43.824Z [4701] - [33mwarn[39m: [plugins/Giphy] API key is still set to the public beta key
2018-04-18T05:20:43.901Z [4701] - [32minfo[39m: Routes added
2018-04-18T05:20:43.909Z [4701] - [32minfo[39m: NodeBB Ready
2018-04-18T05:20:43.919Z [4701] - [32minfo[39m: Enabling 'trust proxy'
2018-04-18T05:20:43.924Z [4701] - [32minfo[39m: NodeBB is now listening on: 0.0.0.0:4567
2018-04-18T05:20:44.328Z [4701] - [33mwarn[39m: [widgets.render] passing a string is deprecated!, filter:widget.render:shoutbox. Please set hookData.html in your plugin.
2018-04-18T05:20:47.391Z [4701] - [31merror[39m:  TypeError: Cannot read property 'hasOwnProperty' of null
    at postParse (/var/www/nodebb/node_modules/nodebb-plugin-markdown/index.js:181:14)
    at /var/www/nodebb/node_modules/async/dist/async.js:66:19
    at nextTask (/var/www/nodebb/node_modules/async/dist/async.js:5310:14)
    at next (/var/www/nodebb/node_modules/async/dist/async.js:5317:9)
    at /var/www/nodebb/node_modules/async/dist/async.js:958:16
    at _combinedTickCallback (internal/process/next_tick.js:138:11)
    at process._tickCallback (internal/process/next_tick.js:180:9)
2018-04-18T05:20:47.393Z [4701] - [32minfo[39m: [app] Shutdown (SIGTERM/SIGINT) Initialised.
2018-04-18T05:20:47.395Z [4701] - [32minfo[39m: [app] Database connection closed.
2018-04-18T05:20:47.395Z [4701] - [32minfo[39m: [app] Web server closed to connections.
2018-04-18T05:20:47.396Z [4701] - [32minfo[39m: [app] Shutdown complete.
2018-04-18T05:20:48.161Z [4744] - [32minfo[39m: Initializing NodeBB v1.8.1 https://chatrooms.talkwithstranger.com
2018-04-18T05:20:49.697Z [4744] - [33mwarn[39m: [upgrade/appendPluginScripts] Unable to read plugin.json for plugin `nodebb-plugin-save-plugins`. Skipping.
2018-04-18T05:20:49.702Z [4744] - [33mwarn[39m: [upgrade/appendPluginScripts] Unable to read plugin.json for plugin `nodebb-plugin-tws`. Skipping.
2018-04-18T05:20:50.005Z [4744] - [32minfo[39m: [socket.io] Restricting access to origin: https://chatrooms.talkwithstranger.com:*
2018-04-18T05:20:50.790Z [4744] - [32minfo[39m: [plugins/Giphy] Initializing with API key: dc6zaTOxFJmzC
2018-04-18T05:20:50.790Z [4744] - [33mwarn[39m: [plugins/Giphy] API key is still set to the public beta key
2018-04-18T05:20:50.886Z [4744] - [32minfo[39m: Routes added
2018-04-18T05:20:50.893Z [4744] - [32minfo[39m: NodeBB Ready
2018-04-18T05:20:50.906Z [4744] - [32minfo[39m: Enabling 'trust proxy'
2018-04-18T05:20:50.913Z [4744] - [32minfo[39m: NodeBB is now listening on: 0.0.0.0:4567
2018-04-18T05:20:51.913Z [4744] - [33mwarn[39m: [widgets.render] passing a string is deprecated!, filter:widget.render:shoutbox. Please set hookData.html in your plugin.
2018-04-18T05:20:52.434Z [4744] - [31merror[39m:  TypeError: Cannot read property 'hasOwnProperty' of null
    at postParse (/var/www/nodebb/node_modules/nodebb-plugin-markdown/index.js:181:14)
    at /var/www/nodebb/node_modules/async/dist/async.js:66:19
    at nextTask (/var/www/nodebb/node_modules/async/dist/async.js:5310:14)
    at next (/var/www/nodebb/node_modules/async/dist/async.js:5317:9)
    at /var/www/nodebb/node_modules/async/dist/async.js:958:16
    at _combinedTickCallback (internal/process/next_tick.js:138:11)
    at process._tickCallback (internal/process/next_tick.js:180:9)
2018-04-18T05:20:52.435Z [4744] - [32minfo[39m: [app] Shutdown (SIGTERM/SIGINT) Initialised.
2018-04-18T05:20:52.436Z [4744] - [32minfo[39m: [app] Database connection closed.
2018-04-18T05:20:52.436Z [4744] - [32minfo[39m: [app] Web server closed to connections.
2018-04-18T05:20:52.436Z [4744] - [32minfo[39m: [app] Shutdown complete.  


Looks like the mark-down plugin caused some error which caused the site to shutdown, but 2 services tried to restart node bb, but it failed.
This caused our site to go down and didn't restart on its own. we had to do it manually.

How can we fix this?

<baris>

You probably have another plugin that is using the hook filter:parse.post that is not passing the correct data back, check your plugins for the ones that are using that hook.