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reitermarkus moorgrove codingminds

ams-han-decoder's Issues

A for line 2 on aidon

I can not seem to see A for L2 in the json, only for L1 and L3. Is this a bug or a feature? ;)

Possible memory leak

Hi
First of all thanks for a good program!

After a couple of days running this on my Rpi3 it stopped sending data to HA and I was not able to SSH into the instance. The PI is a fresh install only running this service.

In syslog I found these:

Sep 13 22:47:45 raspberrypi ams_han_decoder.pl[245]: Decoding HDLC frame failed: Can't pipe to  mosquitto_pub -h 192.168.10.69 -s -t sensor/ams: Cannot allocate memory at /home/pi/ams-han-decoder/ams_han_decoder.pl line 115.
Sep 13 22:47:45 raspberrypi ams_han_decoder.pl[245]: #011main::send_json("{\x{a}   \"data\" : {\x{a}      \"power_active_import\" : {\x{a}         \"des"...) called at /home/pi/ams-han-decoder/ams_han_decoder.pl line 434
Sep 13 22:47:45 raspberrypi ams_han_decoder.pl[245]: #011main::decode_hdlc_frame("\x{a0}*A\x{8}\x{83}\x{13}\x{4}\x{13}\x{e6}\x{e7}\x{0}\x{f}\@\x{0}\x{0}\x{0}\x{0}\x{1}\x{1}\x{2}\x{3}\x{9}\x{6}\x{1}\x{0}\x{1}\x{7}\x{0}\x{ff}\x{6}\x{0}\x{0}\x{5}\x{da}\x{2}\x{2}\x{f}\x{0}\x{16}\x{1b}J\x{ad}", 42, 0, 10) called at /home/pi/ams-han-decoder/ams_han_decoder.pl line 189
Sep 13 22:47:45 raspberrypi ams_han_decoder.pl[245]: #011eval {...} called at /home/pi/ams-han-decoder/ams_han_decoder.pl line 189
Sep 13 22:47:45 raspberrypi ams_han_decoder.pl[245]: #011main::parse_stream(GLOB(0x1f61648)) called at /home/pi/ams-han-decoder/ams_han_decoder.pl line 83
Sep 13 22:47:47 raspberrypi ams_han_decoder.pl[245]: Decoding HDLC frame failed: Can't pipe to  mosquitto_pub -h 192.168.10.69 -s -t sensor/ams: Cannot allocate memory at /home/pi/ams-han-decoder/ams_han_decoder.pl line 115.
Sep 13 22:47:47 raspberrypi ams_han_decoder.pl[245]: #011main::send_json("{\x{a}   \"data\" : {\x{a}      \"power_active_import\" : {\x{a}         \"des"...) called at /home/pi/ams-han-decoder/ams_han_decoder.pl line 434

The program is running as a service in systemd:

[Unit]
Description=AMS HAN decoder

[Service]
Environment=HOME=/home/pi
ExecStart= /home/pi/ams-han-decoder/ams_han_decoder.pl -m AIDON_V0001 -p ' mosquitto_pub -h 192.168.10.69 -s -t sensor/ams' /dev/ttyUSB0

[Install]
WantedBy=multi-user.target

After rebooting I then watched the processes in htop and could see the memory use of the service stedely raising, which leads me to the conclution that that a memory leak is the reason behind my crash.

I was able to solve this by adding auto restart of the service in systemd, but this should not be needed.

So the "working" systemd service now looks like this

[Unit]
Description=AMS HAN decoder

[Service]
Environment=HOME=/home/pi
ExecStart= /home/pi/ams-han-decoder/ams_han_decoder.pl -m AIDON_V0001 -p ' mosquitto_pub -h 192.168.10.69 -s -t sensor/ams' /dev/ttyUSB0
Restart=always
RuntimeMaxSec=3600

[Install]
WantedBy=multi-user.target

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