Unmounting optimumcache takes too long

[noyearzero]

Hello,

Every time I want to reboot a machine that has optimumcache installed and running, it takes way too long. I keep getting errors that the ploop device cannot unmount.

Can anyone suggest a workaround to forcefully unmount the ploop device for optimumcache and then reboot?

[bogdan.sh]

This should not happen, stopping service shoudl be fast. Do you use latest optimumcache and kernel? Please show us:

uname -r

rpm -q optimumcache

[andrei]

Hello,

Ive updated recently the kernel but the one that I was using a few days ago was a previous version:

root@myserver [~]# uname -r
2.6.32-673.8.1.lve1.4.3.el6.x86_64

The version of optimumcache was installed a while back using the beta version. I installed it using the updates testing repo from Cloudlinux:

yum install optimumcache --enablerepo=cloudlinux-updates-testing

root@myserver [~]# rpm -q optimumcache
optimumcache-0.3-4.el6.cloudlinux.x86_64

The errors found in /var/log/messages while trying to reboot are:

Dec 7 22:30:27 myserver kernel: [17457750.246210] stop ploop34233 failed (holders=1)
Dec 7 22:30:28 myserver kernel: [17457751.246698] stop ploop34233 failed (holders=1)
Dec 7 22:30:29 myserver kernel: [17457752.247184] stop ploop34233 failed (holders=1)

Like in my previous post, the most that I have waited was about 5 minutes before forcefully rebooting the server.

[bogdan.sh]

We are not aware that ploop unmount is hunging. Overall ploop functionality should be improved in future, our upstream provider is performing major changes.

Please consider using optimumcache without ploop: http://docs.cloudlinux.com/index.htm...out_ploop.html