OpenMarine

I'm looking for ways to save the data detected by openplotters to avoid losing them at every reboot.
Looking for other experiences I did these tests:

1 - Attempt to use influxDB with ui_chart of Node-RED
install InfluxDB from official repository by following this guide: https://www.vincenzov.net/taccuino/Raspb...rafana.htm
I can write the database but I can not read the data with node-red ui_chart

2 - Attempt with dashDB It does not install on openplotters
I followed this guide with code example:
https://internet-of-things.blog/en/how-t...dashboard/

3 - Attempt with influx + grafena (As done by PaddyB http://forum.openmarine.net/showthread.php?tid=1420)
grafena does not start, I think for the conflict of the door (it uses 3000 equal to signalK) and I could not change it.
(I followed these instructions: https://stackoverflow.com/questions/2830...afana-port)

4 -? Someone talks about the possibility of using MQTT data but I do not know if it can be as efficient as a database and I do not know how to do it.
I ask if the developers of Openplotter think to support in the future a system to save data in order to experiment in the same direction.

Or I ask if others have experiences and can report practical examples of code.

Thank

(2018-09-09, 07:12 AM)kste Wrote: [ -> ]3 - Attempt with influx + grafena (As done by PaddyB http://forum.openmarine.net/showthread.php?tid=1420)
grafena does not start, I think for the conflict of the door (it uses 3000 equal to signalK) and I could not change it.
(I followed these instructions: https://stackoverflow.com/questions/2830...afana-port)

grafana change port /etc/grafana/grafana.ini

'
#################################### Server ####################################
[server]
# Protocol (http, https, socket)
;protocol = http

# The ip address to bind to, empty will bind to all interfaces
;http_addr =

# The http port  to use
http_port = 3001
'

Thank you e-sailing,
However, I was more attracted to the idea of continuing to read the graphs with ui_chart (solution 1), if I use grafana I will have some data in the dashboard of Node RED and others in the grafana interface.

Signal K server’s InfluxDb plugin can write all your data to InfluxDb (or you can pick the items that you want to write), no Node-Red flows needed.

I personally really like Grafana with its responsive layout and flexible time selection.


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I set the port but grafana does not start. Syslog says:
Sep 11 20:03:16 berry1 grafana-server[393]: Inconsistency detected by ld.so: dl-lookup.c: 971: _dl_setup_hash: Assertion `(bitmask_nwords & (bitmask_nwords - 1)) == 0' failed!

I try to follow my path, summary:
1 - I can write the battery volt on influxdb
2 - I can read the data from influxdb
3 - I am not able to write a function to pass data in the format that ui_chart likes.

Can someone help me?

You could use chronograf to view the data in influxdb, much more flexible than node red grqphs.

https://www.influxdata.com/time-series-p...hronograf/

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(2018-09-13, 04:20 PM)PaddyB Wrote: [ -> ]You could use chronograf to view the data in influxdb, much more flexible than node red grqphs.

https://www.influxdata.com/time-series-p...hronograf/

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Yes, thanks, I have already installed Chronograf but it seems to me more a tool of control and administration.

I have already created a dashboard with node-red quite complete and I would like to keep it and continue to improve it, but eliminating the loss of data history in case I have to restart openplotter.

I can create static data to be passed to ui_chart but I do not have the skills to format an array coming from a query.

(2018-09-13, 06:19 PM)kste Wrote: [ -> ]Yes, thanks, I have already installed Chronograf but it seems to me more a tool of control and administration.

Chronograf is actually very powerful for potting data, create dashboards with live data or plots, handy feature is plotting data from say a day before over current. Zoom is good, enter various default times or enter your own dates/times.



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(2018-09-13, 06:27 PM)PaddyB Wrote: [ -> ]Chronograf is actually very powerful for potting data, create dashboards with live data or plots, handy feature is plotting data from say a day before over current. Zoom is good, enter various default times or enter your own dates/times.

Great, you made me discover the dashboard of chronogrf, really interesting to be able to quickly create graphs and store them.

However, my interest in resolving the visualization on the node-red graph remains...