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can't display last data if topic not refreshed #99

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rickou opened this issue May 15, 2024 · 0 comments
Open

can't display last data if topic not refreshed #99

rickou opened this issue May 15, 2024 · 0 comments

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@rickou
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rickou commented May 15, 2024

hello,

i spent lots of time using this pluggin without success.

i have configured Grafana behind a proxy server, all seems to work fine.
i have added the mqtt plugin and connected it to my MQTT server. (connection ok)

i added 3 panels with each 1 topic
but when i load the dashboard, the value are displayed randomly..
sometimes, only 1 value, sometimes, 2 values, most of the time, all 3 panels display "no data".

if let google chrome opened on the dashboard and restart grafana-server, the 3 values instantly refresh with values !
that seems to confirm the proxy server is working fine.

note these 3 topics are only refreshed once per day.

another thing to notice, if i use the "explore" feature and set 1 topic, i get values, but only when new mqtt value... (but graph display only 1st point)

i also checked the log files, but there is no error shown

it is like mqtt plugin do not always send the latest value before streaming new one..

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