1

I have been receiving these errors on my dashboards. Not sure what they refer to or how to fix what is causing them and thought I should ask.
image

I’ve included my server information below.

Server Information

Server Information

Services

  • emonhub :- Active Running
  • emoncms_mqtt :- Active Running
  • feedwriter :- Active Running - sleep 300s 1236 feed points pending write
  • service-runner :- Active Running
  • emonPiLCD :- Inactive Dead
  • redis-server :- Active Running
  • mosquitto :- Active Running
  • demandshaper :- Active Running

Emoncms

Server

  • OS :- Linux 4.19.75-v7+
  • Host :- emonpi | emonpi | (192.168.1.24)
  • Date :- 2019-11-20 23:42:49 UTC
  • Uptime :- 23:42:49 up 5 days, 4:58, 0 users, load average: 0.02, 0.12, 0.10

Memory

  • RAM :- Used: 21.56%
    • Total :- 975.62 MB
    • Used :- 210.35 MB
    • Free :- 765.27 MB
  • Swap :- Used: 0.00%
    • Total :- 100 MB
    • Used :- 0 B
    • Free :- 100 MB
      Write Load Period

Disk

  • / :- Used: 46.56%
    • Total :- 3.92 GB
    • Used :- 1.83 GB
    • Free :- 1.9 GB
    • Write Load :- n/a
  • /boot :- Used: 20.55%
    • Total :- 252.05 MB
    • Used :- 51.79 MB
    • Free :- 200.26 MB
    • Write Load :- 0 B/s (5 days 4 hours 48 mins)
  • /var/opt/emoncms :- Used: 0.86%
    • Total :- 9.98 GB
    • Used :- 87.81 MB
    • Free :- 9.39 GB
    • Write Load :- n/a
  • /var/log :- Used: 10.02%
    • Total :- 50 MB
    • Used :- 5.01 MB
    • Free :- 44.99 MB
    • Write Load :- n/a

HTTP

  • Server :- Apache/2.4.38 (Raspbian) HTTP/1.1 CGI/1.1 80

MySQL

  • Version :- 5.5.5-10.3.17-MariaDB-0+deb10u1
  • Host :- localhost:6379 (127.0.0.1)
  • Date :- 2019-11-20 23:42:49 (UTC 00:00‌​)
  • Stats :- Uptime: 449865 Threads: 16 Questions: 1448274 Slow queries: 0 Opens: 46 Flush tables: 1 Open tables: 40 Queries per second avg: 3.219

Redis

  • Version :-
    • Redis Server :- 5.0.3
    • PHP Redis :- 5.0.2
  • Host :- localhost:6379
  • Size :- 446 keys (1.02M)
  • Uptime :- 5 days

MQTT Server

  • Version :- Mosquitto 1.5.7
  • Host :- localhost:1883 (127.0.0.1)

PHP

  • Version :- 7.3.9-1~deb10u1 (Zend Version 3.3.9)
  • Modules :- apache2handler | calendar v7.3.9-1~deb10u1 | Core v7.3.9-1~deb10u1 | ctype v7.3.9-1~deb10u1 | curl v7.3.9-1~deb10u1 | date v7.3.9-1~deb10u1 | dom v20031129 | exif v7.3.9-1~deb10u1 | fileinfo v7.3.9-1~deb10u1 | filter v7.3.9-1~deb10u1 | ftp v7.3.9-1~deb10u1 | gd v7.3.9-1~deb10u1 | gettext v7.3.9-1~deb10u1 | hash v7.3.9-1~deb10u1 | iconv v7.3.9-1~deb10u1 | json v1.7.0 | libxml v7.3.9-1~deb10u1 | mbstring v7.3.9-1~deb10u1 | mosquitto v0.4.0 | mysqli v7.3.9-1~deb10u1 | mysqlnd vmysqlnd 5.0.12-dev - 20150407 - $Id: 7cc7cc96e675f6d72e5cf0f267f48e167c2abb23 $ | openssl v7.3.9-1~deb10u1 | pcre v7.3.9-1~deb10u1 | PDO v7.3.9-1~deb10u1 | pdo_mysql v7.3.9-1~deb10u1 | Phar v7.3.9-1~deb10u1 | posix v7.3.9-1~deb10u1 | readline v7.3.9-1~deb10u1 | redis v5.0.2 | Reflection v7.3.9-1~deb10u1 | session v7.3.9-1~deb10u1 | shmop v7.3.9-1~deb10u1 | SimpleXML v7.3.9-1~deb10u1 | sockets v7.3.9-1~deb10u1 | sodium v7.3.9-1~deb10u1 | SPL v7.3.9-1~deb10u1 | standard v7.3.9-1~deb10u1 | sysvmsg v7.3.9-1~deb10u1 | sysvsem v7.3.9-1~deb10u1 | sysvshm v7.3.9-1~deb10u1 | tokenizer v7.3.9-1~deb10u1 | wddx v7.3.9-1~deb10u1 | xml v7.3.9-1~deb10u1 | xmlreader v7.3.9-1~deb10u1 | xmlwriter v7.3.9-1~deb10u1 | xsl v7.3.9-1~deb10u1 | Zend OPcache v7.3.9-1~deb10u1 | zlib v7.3.9-1~deb10u1

Pi

  • Model :- Raspberry Pi 3 Model B+ Rev 1.3 - 1GB (Sony UK)

  • Serial num. :- 3BD68E61

  • Temperature :- 53.69°C - 53.7°C

  • emonpiRelease :- emonSD-17Oct19

  • File-system :- read-only

Client Information

Client Information

HTTP

  • Browser :- Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/78.0.3904.87 Safari/537.36
  • Language :- en-US,en;q=0.9

Window

  • Size :- 1351 x 669

Screen

  • Resolution :- 1366 x 768
2

Hello @Ryan_S thanks for the bug report, I think I can see the cause of the issue and have uploaded the fix.
This will be available via standard emonpi update soon once merged into the stable branch.

Fix commit reference:
fix previous point error · emoncms/emoncms@3141615 · GitHub

3

Yuck! Uninitialised variables… My old tutor just turned in his grave. :man_facepalming::grin:

4

Glad I could report it. When should they be ready for me to run the update?

Taking a look at the link to the piece of code I see what it is now. Bit rusty on my coding skills since I don’t do it frequently.