Hi all,

when testing MTA 5.0.0 Web Console I encountered the following error:

After uploading an artifact, it would throw queuing-related exceptions in the log, the package identification step would never finish. 

Drilling down, I found it was related to the "inotify.max_user_watches" on my system. Yes, I also had to up the max file handles (there's a warning in the log if too low) but that didn't fix this particular issue.

This fixed it for me: (MTA 5.0.0 final Web Console on RHEL CSB 7.5)

After checking

cat /proc/sys/fs/inotify/max_user_watches

(don't remember the values, but was comparatively low, must be default, as the /etc/sysctl.conf,  /etc/sysctl.d/, /usr/lib/sysctl.d/,... didn't contain this setting)

I added the max (for testing, I haven't tested any lower settings) of 

fs.inotify.max_user_watches=524288

to my 

/etc/sysctl.conf

and then reloaded with 

sudo sysctl -p

and: ta-dah! It works  

Maybe we can add a check for a sane (not 524288) value and spit out a warning. Took me some time to find the issue.

Cheers & keep up the great work, much appreciated!!