# Rerun the flows after a power outage

**URL:** <https://discourse.nodered.org/t/rerun-the-flows-after-a-power-outage/73470>\
**Category:** General\
**Created:** [10 January 2023 14:21 UTC](https://discourse.nodered.org/t/rerun-the-flows-after-a-power-outage/73470 "2023-01-10T14:21:08Z")\
**Posts on this page:** 1\
**Showing post:** 6

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**Author:** ![mudwalker](https://avatars.discourse-cdn.com/v4/letter/m/47e85d/32.png) [@mudwalker](https://discourse.nodered.org/u/mudwalker)\
**Post date:** [10 January 2023 16:37 UTC](https://discourse.nodered.org/t/rerun-the-flows-after-a-power-outage/73470/6 "2023-01-10T16:37:37Z")

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Couple of links that should help with Context Memory.

[https://nodered.org/docs/user-guide/context](https://nodered.org/docs/user-guide/context)

[https://discourse.nodered.org/t/a-guide-to-understanding-persistent-context/4115](https://discourse.nodered.org/t/a-guide-to-understanding-persistent-context/4115)

TBH, I just set up a little Noddy Flow to see what happened and viewed the Context Data window on the RHS. Easy once you know how (says I! 🤣).

The same for MQTT, install a server on the PC with Node-RED - I use [Mosquitto](https://mosquitto.org/), again the words are more difficult than the doing. Remember, [MQTT Explorer](https://mqtt-explorer.com/) will help initially, and once you can see what your device is sending, then you can check to see what you can read in Node-RED.

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_[View the full topic](https://discourse.nodered.org/t/rerun-the-flows-after-a-power-outage/73470)._