dump1090-mutability v1.15~devCaught SIGTERM, shutting down..

FlightAware ADS-B Flight Tracking
1

This just happened in the middle of the night. dump1090-mutability v1.15~dev was down for about 5 hours. When I got up this morning, I rebooted and things came back online.

I’ve been running 1.15 for a while now and haven’t seen this before.

Any ideas?

Thanks!

Sat Sep 5 09:00:32 2015 EDT dump1090-mutability v1.15~dev starting up.
Using sample converter: UC8, integer/table path
Found 1 device(s):
0: Realtek, RTL2838UHIDIR, SN: 00000001 (currently selected)
Found Rafael Micro R820T tuner
Using automatic gain control.
Gain reported by device: 0.00 dB
Sat Sep 5 09:35:01 2015 EDT Caught SIGTERM, shutting down…

Sat Sep 5 09:35:32 2015 EDT dump1090-mutability v1.15~dev starting up.
Using sample converter: UC8, integer/table path
Found 1 device(s):
0: Realtek, RTL2838UHIDIR, SN: 00000001 (currently selected)
Found Rafael Micro R820T tuner
Using automatic gain control.
Gain reported by device: 0.00 dB
Sat Sep 5 10:00:01 2015 EDT Caught SIGTERM, shutting down…

Sat Sep 5 10:00:32 2015 EDT dump1090-mutability v1.15~dev starting up.
Using sample converter: UC8, integer/table path
Found 1 device(s):
0: Realtek, RTL2838UHIDIR, SN: 00000001 (currently selected)
Found Rafael Micro R820T tuner
Using automatic gain control.
Gain reported by device: 0.00 dB
Sat Sep 5 10:21:02 2015 EDT Caught SIGTERM, shutting down…

Sat Sep 5 10:21:10 2015 EDT dump1090-mutability v1.15~dev starting up.
Using sample converter: UC8, integer/table path
Found 1 device(s):
0: Realtek, RTL2838UHIDIR, SN: 00000001 (currently selected)
Found Rafael Micro R820T tuner
Using automatic gain control.
Gain reported by device: 0.00 dB
Sat Sep 5 10:35:01 2015 EDT Caught SIGTERM, shutting down…

rtlsdr_demod_write_reg failed with -1
r82xx_write: i2c wr failed=-9 reg=06 len=1

2

Probably piaware deciding to restart it because it has seen no traffic for a while. Then one of the restarts failed due to a failure in librtlsdr.

3

6 hour graph
http://i300.photobucket.com/albums/nn30/adsbjunkmail/Screen%20Shot%202015-09-05%20at%2011.44.31%20AM_zpsjntjmanm.jpg

1 day graph

http://i300.photobucket.com/albums/nn30/adsbjunkmail/Screen%20Shot%202015-09-05%20at%2011.44.17%20AM_zpspbxwq9nq.jpg

Normally, ADS-B traffic is very light here between 3AM and 5AM (-4 GMT). After that there always at least a few planes in the my area.

http://i300.photobucket.com/albums/nn30/adsbjunkmail/Screen%20Shot%202015-09-05%20at%2011.49.55%20AM_zpsskw8ywlp.jpg

Not going to lose sleep over it. :slight_smile:

Just the first time I’ve seen this happen since I joined in April.

Perhaps I should set a crontab to reboot at say 5am or 6am?

4

I’d suggest checking the piaware logs to see what it says, but if you’ve rebooted then they’re probably gone.

The SIGTERM message is telling you that something external to dump1090 killed it off. (I added that message after one too many reports of “dump1090 died mysteriously, why?”)