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tobyweston / temperature-machine

Data logger for multiple DS18B20 temperature sensors on one or more machines
Apache License 2.0
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7days/1month chart: no data displayed #33

Open andrei2186 opened 7 years ago

andrei2186 commented 7 years ago

Hi, Yesterday no longer displays anything on 7days/1month chart.They are empty. What could be the problem

Thank you.

tobyweston commented 7 years ago

Is there anything in the log? Is it just after you started up? The charts are regenerated periodically, so the first time you start up, the charts will be empty. Refresh and it should come back.

andrei2186 commented 7 years ago

I know after start is available after 1 min. But yesterday not work all day. I will check the log and I post here. Thank you.

singh763173 commented 6 years ago

I had the same problem but found that if I refreshed the page more than enough times, it eventually came back.

tobyweston commented 6 years ago

has it come back @andrei2186 ?

andrei2186 commented 6 years ago

Yes. All are ok now.

andrei2186 commented 6 years ago

The problem come back.2 hours ago.

tobyweston commented 6 years ago

Is there anything in the log? how about the browser console (in Chrome hit cmd + alt + i)?

andrei2186 commented 6 years ago

I think the problem was generated from raspberry forced shutdown. Where are the logs?

tobyweston commented 6 years ago

Logs are in .temperature under your home folder.

cat ~/.temperature/temperature-machine.log

andrei2186 commented 6 years ago

2017-12-08 20:19:26:457 [main] INFO Starting temperature-machine (server mode)... 2017-12-08 20:19:26:547 [main] INFO RRD initialising for 'raspberrypi' (with up to 5 sensors each)... 2017-12-08 20:19:26:587 [main] INFO Ok 2017-12-08 20:19:29:192 [main] INFO Starting Discovery Server, listening for 'raspberrypi'... 2017-12-08 20:19:29:227 [temperature-machine-discovery-server-1] INFO Listening for broadcast messages... 2017-12-08 20:19:29:385 [main] INFO Monitoring sensor file(s) on 'raspberrypi' /sys/bus/w1/devices/28-0000070540af/w1_slave /sys/bus/w1/devices/28-0000076b780e/w1_slave

2017-12-08 20:19:31:201 [main] INFO HTTP Server started on http://127.0.1.1:11900

andrei2186 commented 6 years ago

temp

tobyweston commented 6 years ago

FYI, charts are regenerated as per the following schedule. I have no clue at the moment why that might fail but will start by reviewing the logging (as I see nothing at present in the logs). Worse case, refresh the page according to the schedule and see if they appear (at least until we can fix it)

Quaxo76 commented 6 years ago

Just to add that I see this issue a lot. The 24-hour graph is usually fine, the 7-day graph is empty most of the time, and the 1-month... I think I've only seen it display some data once or twice.

hardys commented 6 years ago

I'm seeing the same, and from the file timestamp I can see the charts are all re-generated when the service restarts (or the host is rebooted), but it seems that this initial create uses an empty dataset, as it's not until the subsequent scheduled run that the graphs get properly rendered - I can't yet see where/why this is happening in the code.

tobyweston commented 6 years ago

Thanks for the comment, I suspect a race condition in the task startup stuff around here:

https://github.com/tobyweston/temperature-machine/blob/3263504b6cde9c7b97ae9d01254b8d09ac89166f/src/main/scala/bad/robot/temperature/task/IOs.scala#L46

but it's just a guess at this point.

A breakpoint (assuming you can reproduce) in Graph.scala should at least say if it's because of an empty data set. I had (vainly) assumed it was a bug in the underlying RRD before.

https://github.com/tobyweston/temperature-machine/blob/cae33c941d867094a6a792a25e16d95c3d0dec7f/src/main/scala/bad/robot/temperature/rrd/Graph.scala#L13