https://community.appian.com/discussions/f/administration/22025/what-will-happen-if-external-data-base-is-downHi Everyone, What will happen if one of more external database is down which are configured in Data Store. Will Appian tries to connect continuously in backend or will only connect when any process model, expression usesen-USTelligent Community 12https://community.appian.com/thread/86212?ContentTypeID=1Mon, 27 Sep 2021 13:44:04 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:111053e1-6e1c-4864-a180-6c5fd1269dd0Stefan Helzle<p>The applications you created relying on that databases will not work anymore. Depends on whether you use any synchronised records, but in general Appian as a platform will just run, while the applications are only as stable as the datasources they use.</p><div style="clear:both;"></div>https://community.appian.com/thread/86211?ContentTypeID=1Mon, 27 Sep 2021 13:39:53 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:86fc0901-bd3a-4083-bc11-24dac92f3bb9Kapil Krishan Kumar<p>Thanks Stefan. But what will happen to system if Data Sources are down . Will system consume more memory ? Can i bring down system</p><div style="clear:both;"></div>https://community.appian.com/thread/86208?ContentTypeID=1Mon, 27 Sep 2021 13:00:04 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:5898ecd1-7125-418e-9aea-e743d43a20abStefan Helzle<p>Appian uses connection pooling to connect to DBs. So it will try to keep as many connections open as the defined lower limit of the pool.</p><div style="clear:both;"></div>