Differences

This shows you the differences between two versions of the page.

--- venus-os:large [2024-06-03 11:38] – [5.4 Controlling relays] dfaber
+++ venus-os:large [2024-07-14 16:53] – [8.1 Disk space issues / data partition full] mvader
@@ Line 120: / Line 120: @@
 ===== 5. Node-RED =====
-{{ :venus-os:node-red-contrib-victron-nodes.png?nolink |}}
+{{:venus-os:node-palette.png?direct&nolink |}}
 ==== 5.1 Introduction ====
@@ Line 349: / Line 349: @@
 And restart Node-RED.
+=== Q11: Is there a way to have the context survive reboots? ===
+By default the context is stored in memory of the GX device only. If the GX device gets rebooted, the
+content of the memory gets reset and you loose the context information.
+In order to keep the context data, it is needed to [[https://nodered.org/docs/api/context/store/localfilesystem|store the context to disk]]. This can be achieved by creating (or adding to) a user configuration file ''/data/home/nodered/.node-red/settings-user.js'', containing:
+  module.exports = {
+    contextStorage: {
+      default: {
+        module: "localfilesystem",
+        config: {
+          flushInterval: 300 // Save context data every 5 minutes
+        }
+      }
+    }
+  }
+With the above settings, context files will get created periodically in ''/data/home/nodered/.nodered/context/''. In order not to wear out the flash too much, don't write too often.
 ===== 6. Signal K =====
@@ Line 599: / Line 619: @@
   - Do full GX factory reset, as per the instructions in the GX user manuals. This includes downloading a file called venus-data.tgz; see GX manual for details. Disadvantage is that you'll need to reconfigure the GX.
-  - Remove all Signal K Server log files. In case you're using SignalK, then we recommend to try that option first. See next chapter on how to do that (requires a USB stick or SD Card), and once done make sure to double check you're Signal K log setup; Most importantly, enable the ''Keep only most recent data log files'' option.
+  - Remove all Signal K Server log files. In case you're using SignalK, then we recommend to try that option first. See next chapter on how to do that (requires a USB stick or SD Card), and once done make sure to double check you're Signal K log setup; Most importantly, make sure that the ''Keep only most recent data log files'' option is enabled. That feature is enabled by default, and can be found in the Signal K -> Server -> Settings section.
-  - A more detailed approach is logging in on SSH, and checking for disk space:
+  - A more detailed approach is logging into the SSH console, and checking for disk space:
 **Tips and tricks to login a diagnose disk space**
@@ Line 656: / Line 676: @@
   * [[https://www.victronenergy.com/upload/software/venus-factory-default/venus-data-00-backup-data-partition.tgz|venus-data-00-backup-data-partition.tgz]] - copies all that is on the ''/data'' partition onto the usb stick
-  * [[https://www.victronenergy.com/upload/software/venus-factory-default/venus-data-20-signalk-reset.tgz|venus-data-20-signalk-reset.tgz]] - wipes everything from ''/data/conf/signalk/''
+  * [[https://www.victronenergy.com/upload/software/venus-factory-default/venus-data-20-signalk-reset.tgz|venus-data-20-signalk-reset.tgz]] - removes all files and directories from ''/data/conf/signalk/'', which lets you start over again with SignalK.
   * [[https://www.victronenergy.com/upload/software/venus-factory-default/venus-data-30-signalk-delete-data-logs.tgz|venus-data-30-signalk-delete-data-logs.tgz]] - removes all SignalK loging
-  * [[https://www.victronenergy.com/upload/software/venus-factory-default/venus-data-20-node-red-reset.tgz|venus-data-20-node-red-reset.tgz]] - wipes all in ''/data/home/nodered/''
+  * [[https://www.victronenergy.com/upload/software/venus-factory-default/venus-data-20-node-red-reset.tgz|venus-data-20-node-red-reset.tgz]] - removes the files from ''/data/home/nodered/'', which lets you start with Node-RED from scratch.
 See [[https://www.victronenergy.com/live/ccgx:root_access#hooks_to_install_run_own_code_at_boot|here]] for more information on how this process works.