Post-processor "Allow negative" stuck on Queued / Service-runner permissions issue

Emoncms Emoncms.org
1

  1. Running a post-processing job (“Allow negative”) results in a persistent Queued state in the UI.

  2. service-runner.service initially threw [Errno 13] Permission denied: '/var/log/emoncms/postprocess.log'.

  3. /opt/emoncms/modules/postprocess/postprocess.sh was missing, so we created /opt/emoncms/modules/postprocess/ and synced the module contents from /var/www/emoncms/Modules/postprocess/.

  4. Log file permissions were set to 777, stale locks in Redis (emoncms:postprocess:lock) were cleared, and service-runner was restarted.

  5. Running sudo php /var/www/emoncms/Modules/postprocess/postprocess_run.php returns no output, and setting UPDATE postprocess SET status=0; in MySQL resets the DB row, but triggering Run from the UI immediately drops it back into a stuck Queued state without executing the script payload.

2

Welcome, Frank, to the OEM forum.

Did you type your post off-line, and then paste it onto this page to post it? If you did, this is why it failed to appear straight away – we have a series of anti-spam checks, one of which is to trap material that is copied and pasted, as this is typical spammer behaviour. It’s quite safe to part-type your post here, even switch your phone/computer off, and it will be waiting when you come back.

Sadly, I can’t help with a deep emonCMS problem like you describe, I think this will need @TrystanLea’s attention.

3

Hello @SnowMonkey

I would start from scratch. It sounds like you have the install the wrong way around.

cd /var/www/emoncms/Modules
rm -rf postprocess

cd /opt/emoncms/modules
rm postprocess

git clone [email protected]:emoncms/postprocess.git
ln -s /opt/emoncms/modules/postprocess/postprocess-module/ /ar/www/emoncms/Modules/postprocess
4

Thanks Trystan for your advice. Can I correspond with you direct, as follows, or do I have to go through the forum?

These are the responses I get when I feed that code into Terminal:

pi@emonpi:/var/www/emoncms $ cd /var/www/emoncms/Modules

rm -rf postprocess

pi@emonpi:/var/www/emoncms/Modules $ cd /opt/emoncms/modules

rm postprocess

rm: cannot remove ‘postprocess’: Is a directory

pi@emonpi:/opt/emoncms/modules $ git clone [email protected]:emoncms/postprocess.git

ln -s /opt/emoncms/modules/postprocess/postprocess-module/ /ar/www/emoncms/Modules/postprocess

fatal: destination path ‘postprocess’ already exists and is not an empty directory.

ln: failed to create symbolic link ‘/ar/www/emoncms/Modules/postprocess’: No such file or directory

pi@emonpi:/opt/emoncms/modules $

Kindest regards,

Frank

5

maybe try:

cd /opt/emoncms/modules
rm -rf /opt/emoncms/modules/postprocess

then continue with the git clone