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Emonhub.log removed after restart

I upgraded emonbase to the latest version, low-write 10.0.2, and after a power outage, I didn’t had any values in the input feeds. I checked and emonhub service was stopped and I couldn’t get it to start.

[email protected](ro):log$ sudo systemctl status emonhub
● emonhub.service - emonHub service description
   Loaded: loaded (/home/pi/emonhub/service/emonhub.service; disabled)
   Active: failed (Result: start-limit) since Tue 2019-05-28 21:42:39 UTC; 4min 50s ago
  Process: 3114 ExecStart=/usr/share/emonhub/emonhub.py --config-file=/home/pi/data/emonhub.conf --logfile=/var/log/emonhub/emonhub.log (code=exited, status=2)
 Main PID: 3114 (code=exited, status=2)

May 28 21:42:39 emonpi systemd[1]: Unit emonhub.service entered failed state.
May 28 21:42:39 emonpi systemd[1]: emonhub.service holdoff time over, scheduling restart.
May 28 21:42:39 emonpi systemd[1]: Stopping emonHub service description...
May 28 21:42:39 emonpi systemd[1]: Starting emonHub service description...
May 28 21:42:39 emonpi systemd[1]: emonhub.service start request repeated too quickly, refusing to start.
May 28 21:42:39 emonpi systemd[1]: Failed to start emonHub service description.
May 28 21:42:39 emonpi systemd[1]: Unit emonhub.service entered failed state.

I noticed that the there is a logfile parameter pointing to a file that doesn’t exist.

[email protected](ro):log$ less /var/log/emonhub/emonhub.log
/var/log/emonhub/emonhub.log: No such file or directory

I then created the directory emonhub and file and was able to start the emonhub service. The problem that I now have is that every time I restart or have a power outage, this directory and file are removed and emonhub service won’t start!

Any way to fix this?

Could you confirm how you updated and, if you know, what the previous version was?

Try running just the emoncms update and not the full update and post the update log please.

Before running any further updates, can you please upload your emonpiupdate.log for us to take a look at?

Recent changes to the emonhub repo brought in the --logfile path and simultaneous changes to the emonpi repo should have created the emonhub log folder and added a entry to rc,local so it is added on a restart.

It sounds like some of the intended changes haven’t happened/stuck. It’s unlikely to have anything to do with the update to emoncms itself.

Do you have access to the command line via SSH?

if so could you post the output of

sudo systemctl cat emonhub.service
sudo cat /etc/rc.local

If you haven’t updated in the last 2days could you update emonhub again ( I would just use the update all to be safe) it should pull in the more recent changes that auto create the emonhub log folder.

@pb66 Attached the log file and the output of those 2 commands.

emon_files.zip (3.8 KB)

# /home/pi/emonhub/service/emonhub.service
[Unit]
Description=emonHub service description
DefaultDependencies=no
Before=shutdown.target
Conflicts=shutdown.target
Requires=local-fs.target
After=sysinit.target syslog.target local-fs.target

[Service]
User=emonhub
PIDFile=/var/run/emonhub.pid
ExecStart=/usr/share/emonhub/emonhub.py --config-file=/home/pi/data/emonhub.conf --logfile=/var/log/emonhub/emonhub.log
Type=simple
Restart=always

[Install]
WantedBy=multi-user.target
Starting update via service-runner-update.sh (v2.0) >
Filesystem is unlocked - Write access
type ' rpi-ro ' to lock
- emonSD version: emonSD-26Oct17
emonSD base image check passed...continue update
git pull /home/pi/emonpi
* master
  wifiap
On branch master
Your branch is up-to-date with 'origin/master'.
Untracked files:
  (use "git add <file>..." to include in what will be committed)

	1

nothing added to commit but untracked files present (use "git add" to track)
Already up-to-date.
-------------------------------------------------------------
Main Update Script
-------------------------------------------------------------
Date: Sun 26 May 02:15:57 UTC 2019
EUID: 1000
usrdir: /home/pi
type: emoncms
firmware: emonpi
Checking environment:
- pi user found

EUID: 1000
Hardware detected: rfm2pi
Stopping emonPiLCD service
Display update message on LCD
I2C LCD NOT DETECTED on either 0x['27', '3f'] ...exiting LCD script
Start emoncms update:

-------------------------------------------------------------
Emoncms update started
Emoncms update script V1.3 (26th March 2019)
-------------------------------------------------------------
- usr directory: /home/pi
- emoncms directory: /var/www/emoncms

current settings.php md5: 468b110786bf0ab60a856fa3c0036f0f
Default settings.php md5: 468b110786bf0ab60a856fa3c0036f0f
settings.php has NOT been user modifed

Checking status of /var/www/emoncms git repository
- git branch: stable
- no local changes
- running: git pull origin stable

From https://github.com/emoncms/emoncms
 * branch            stable     -> FETCH_HEAD
Already up-to-date.

NEW default settings.php md5: 468b110786bf0ab60a856fa3c0036f0f
settings.php not updated

-------------------------------------------------------------
Updating Emoncms Modules
-------------------------------------------------------------

------------------------------------------
Updating /var/www/emoncms/Modules/app module
------------------------------------------
- git branch: stable
- git tags: 1.2.0-108-g6e5016a
- no local changes
- running: git pull origin stable

From https://github.com/emoncms/app
 * branch            stable     -> FETCH_HEAD
Already up-to-date.

------------------------------------------
Updating /var/www/emoncms/Modules/config module
------------------------------------------
- git branch: stable
- git tags: 1.0.0-63-g1d9238e
- no local changes
- running: git pull origin stable

From https://github.com/emoncms/config
 * branch            stable     -> FETCH_HEAD
Already up-to-date.

------------------------------------------
Updating /var/www/emoncms/Modules/dashboard module
------------------------------------------
- git branch: stable
- git tags: 1.3.1-100-g7e3c332
- no local changes
- running: git pull origin stable

From https://github.com/emoncms/dashboard
 * branch            stable     -> FETCH_HEAD
Already up-to-date.

------------------------------------------
Updating /var/www/emoncms/Modules/device module
------------------------------------------
- git branch: master
- git tags: 1.1.1-46-g8ac9145
- no local changes
- running: git pull origin master

From https://github.com/emoncms/device
 * branch            master     -> FETCH_HEAD
Already up-to-date.

------------------------------------------
Updating /var/www/emoncms/Modules/graph module
------------------------------------------
- git branch: stable
- git tags: 1.2.1-145-g9209240
- no local changes
- running: git pull origin stable

From https://github.com/emoncms/graph
 * branch            stable     -> FETCH_HEAD
   9209240..c7f4ea9  stable     -> origin/stable
Updating 9209240..c7f4ea9
Fast-forward
 Views/sidebar.php |  2 +-
 embed.php         |  8 ++++----
 graph.js          | 11 +++++++----
 module.json       |  2 +-
 4 files changed, 13 insertions(+), 10 deletions(-)

------------------------------------------
Updating /var/www/emoncms/Modules/wifi module
------------------------------------------
- git branch: stable
- git tags: 1.2.0-39-gb67783d
- no local changes
- running: git pull origin stable

From https://github.com/emoncms/wifi
 * branch            stable     -> FETCH_HEAD
Already up-to-date.

------------------------------------------
Updating postprocess module
------------------------------------------
- git branch: emonpi
- git tags: 2.0.0
- no local changes
- running: git pull origin emonpi

Already up-to-date.
Already on 'emonpi'
Your branch is up-to-date with 'remotes/origin/emonpi'.

------------------------------------------
Updating sync module
------------------------------------------
- git branch: master
- git tags: 2.0.1
- no local changes
- running: git pull origin master

Already up-to-date.
Already on 'master'
Your branch is up-to-date with 'origin/master'.

------------------------------------------
Updating backup module
------------------------------------------
- git branch: stable
- git tags: 2.0.0-2-g18c6189
- no local changes
- running: git pull origin stable

Already up-to-date.
Already on 'stable'
Your branch is up-to-date with 'origin/stable'.

------------------------------------------
Auto Installation of Emoncms Modules
------------------------------------------
- graph module already installed
- device module already installed
- postprocess module already installed
- sync module already installed
- backup module already installed

www-data : www-data video systemd-journal

------------------------------------------
SERVICES
------------------------------------------
emoncms_mqtt.service already installed
feedwriter.service already installed
service-runner.service already installed
------------------------------------------
Reloading systemctl deamon
Update Emoncms database
[]

Restarting Services...
- sudo systemctl restart feedwriter.service
--- ActiveState=active ---
- sudo systemctl restart emoncms_mqtt.service
--- ActiveState=active ---
- sudo systemctl restart emonhub.service
--- ActiveState=active ---
- sudo /etc/init.d/openhab restart
Restarting openhab (via systemctl): openhab.service.
● openhab.service - Starts and stops the openHAB Home Automation Bus
   Loaded: loaded (/usr/lib/systemd/system/openhab.service; enabled)
   Active: active (running) since Sun 2019-05-26 02:16:18 UTC; 90ms ago
     Docs: http://www.openhab.org
  Process: 29775 ExecStartPre=/usr/share/openhab/bin/setpermissions.sh (code=exited, status=0/SUCCESS)
 Main PID: 29822 (openhab.sh)
   CGroup: /system.slice/openhab.service
           ├─29822 /bin/sh /usr/share/openhab/bin/openhab.sh -o
           └─29847 /usr/bin/java -Dlogback.configurationFile=/etc/openhab/logback.xml -Dosgi.clean=true -Declipse.ignoreApp=true -Dosgi.noShutdown=true -Djetty.port=8080 -Dopenhab.configfile=/etc/openhab/configurations/openhab.cfg -Dopenhab.configdir=/etc/openhab/configurations -Dopenhab.logdir=/var/log/openhab -Dsmarthome.userdata=/var/lib/openhab -Djetty.home=/usr/share/openhab -Djetty.port.ssl=8443 -Djetty.config=/etc/openhab/jetty -Djetty.logs=/var/log/openhab -Djetty.rundir=/usr/share/openhab -Dfelix.fileinstall.dir=/usr/share/openhab/addons -Dfelix.fileinstall.filter=.*\.jar -Djava.library.path=/usr/share/openhab/lib -Djava.security.auth.login.config=/etc/openhab/login.conf -Dorg.quartz.properties=/etc/openhab/quartz.properties -Dequinox.ds.block_timeout=240000 -Dequinox.scr.waitTimeOnBlock=60000 -Dfelix.fileinstall.active.level=4 -Djava.awt.headless=true -jar /usr/share/openhab/server/plugins/org.eclipse.equinox.launcher_1.3.0.v20120522-1813.jar -configuration /var/lib/openhab/workspace -data /var/lib/openhab/workspace -console 5555

May 26 02:16:18 emonpi setpermissions.sh[29775]: setting owner openhab:openhab recursively for /var/lib/openhab
May 26 02:16:18 emonpi setpermissions.sh[29775]: setting permissions and owner openhab:openhab recursively for /var/log/openhab
May 26 02:16:18 emonpi setpermissions.sh[29775]: setting permissions and owner openhab:openhab recursively for /etc/openhab/configurations
May 26 02:16:18 emonpi setpermissions.sh[29775]: setting permissions and owner openhab:openhab for /usr/share/openhab/webapps/static
May 26 02:16:18 emonpi setpermissions.sh[29775]: setting permissions and owner openhab:openhab for /etc/openhab/jetty/etc/keystore
May 26 02:16:18 emonpi setpermissions.sh[29775]: setting permissions and owner openhab:openhab for /etc/openhab/configurations/users.cfg
May 26 02:16:18 emonpi systemd[1]: Started Starts and stops the openHAB Home Automation Bus.
Installing emoncms logrotate...

Now setting up Logrotate...
Backing up old logrotate configuration...
Linked to new logrotate configuration...
Backing up old logrotate cron job...
mv: cannot stat ‘/etc/cron.daily/logrotate’: No such file or directory
Linked to new logrotate cron job...

Completed


Completed

Running logrotate...

set log rotate config owner to root

------------------------------------------
Emoncms update script complete
------------------------------------------


Starting emonPi LCD service..

Filesystem is locked - Read Only access
type ' rpi-rw ' to unlock

-------------------------------------------------------------
emonPi update done: Sun 26 May 02:16:25 UTC 2019
-------------------------------------------------------------
restarting service-runner
#!/bin/sh
#
# rc.local

echo" My IP address is":
hostname -I

# WLAN fix on RasPi 3B+ Stretch
rm /var/run/wpa_supplicant/wlan0
ifdown wlan0
sleep 1
ifup wlan0

# Will only run if /var/log is mounted in tmpfs
if ( mount | grep "on /var/log "| grep -q "^tmpfs " )
then
  for i in "redis" "apache2" "mysql" "openhab" "logrotate" "mosquitto" "supervisor"; do mkdir /var/log/"$i"; done
  for i in "emoncms.log" "mysql.log" "mqtt_input.log" "redis/redis-server.log" "service-runner.log" "mysql/error.log" "apache2/error.log" "supervisor/supervisord.log" "ntp_update.log"; do touch /var/log/"$i"; done
  for i in "emoncms.log" "mysql.log" "mqtt_input.log" "redis/redis-server.log" "service-runner.log" "mysql/error.log" "apache2/error.log" "supervisor/supervisord.log" "ntp_update.log"; do ""chmod 666"" /var/log/"$i"; done
  chown -R root:adm /var/log/apache2
  chown -R redis:redis /var/log/redis
  chown -R mysql:adm /var/log/mysql
  chown -R openhab:openhab /var/log/openhab
  chown -R pi:pi /var/log/logrotate
  chown -R mosquitto:mosquitto /var/log/mosquitto
  chown -R dataplicity:dataplicity /var/log/supervisor;

  # Restart random seed process now ~/data RW partition has been mounted 
  sudo systemctl restart systemd-random-seed.service

  # Start / Restart services,they should run happy now log dir's are created
  sleep 3
  service mysql restart
  service redis-server restart
  service mosquitto restart
  service emonhub restart
  service emonPiLCD restart
  service apache2 restart
  service supervisor restart
  service feedwriter restart
  service mqtt_input restart
  service lwrfd restart
  service service-runner restart
  service emoncms_mqtt restart

fi

# Run emonPi Update of first factory boot as Pi user (run condition > web connection exisits && ~/data/emonpiu$
su pi -c '/home/pi/emonpi/./firstbootupdate'

## Start Wifi AP (uncomment if required) see emonpi/wifiAP/readme.md
/home/pi/emonpi/wifiAP/startAP.sh


exit 0

I suspect you have run more than one update?

That update log is for an emoncms update

type: emoncms

so the previous update log was over written, but it seems you have a recent, but not the latest emonhub.service unit so can you update again as I suggested above?

Ran the emonhub update and here is the log file.
emonpiupdate.log.txt (2.6 KB)

After a reboot, does emonhub start?

@borpin @pb66 I have rebooted it and it now recreates the folder emonnhub and the log file so emonhub starts normally. Thank you for your quick reply and assistance. I really appreciate it. :smiley:

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