miniserv.pl constantly crashes

Webmin
1

hello,

i am running virtualmin on my private VPS and everything is running fine, only the miniserv.pl is crashing constantly. so almost every time i want to access the virtualminwebfrontend i have to restart webmin :wink:

any ideas why this happens?

VPS
1GB RAM
Cent OS 5.7

2

Seriously, asking this is like calling the repair shop and asking them, “my car engine goes out after each kilometer, why?” :stuck_out_tongue:

So, first thing I’d check: Anything in the logs?

3

sorry, you are right.

well the logs in miniserv.error really don’t say much besides these strange entries:

Error: Failed to open /etc/webmin/package-updates/current.cache for writing : Bad file descriptor

maybe it is a problem with resources of the VPS
free -m show 445MB free RAM but in /usr/beancounters there is this
kmemsize held:14087341; maxheld:17365573; barrier: 16934908; limit:18628398; failcnt: 5250526

any idea what i could do??

4

it says: Bad file descriptor.
this usually means something has no permission to write to the file

5

Yep, I agree with ronald. The error looks like it tries to write to the file, but can’t cause it could not create it (hence the file handle it’s trying to write to is a “bad descriptor”).

Check if that directory exists and if Webmin has write permission.

6

Also, we’ve seen a lot of resource issues when using OpenVZ
 note the failcnt field that you posted there, you seem to be running out of a resource.

If you’re running out of resources, it can cause processes (such as webmin) to die off.

-Eric

7

these are the permissions in that folder:
4 drwx–x--x 2 root bin 4096 4. MĂ€r 21:31 .
4 drwxr-xr-x 127 root root 4096 25. Feb 02:00 

4 -rw------- 1 root bin 67 11. Feb 23:36 config
88 -rw-r–r-- 1 root root 82606 4. MĂ€r 21:31 current.cache
4 -rwxr-xr-x 1 root root 376 26. Dez 23:47 update.pl
4 -rw-r–r-- 1 root root 543 4. MĂ€r 21:11 updates.cache

miniserv.pl runs as root so it should have rights to write to those files, right?

on the virtual machine is not running that much, my personal mail server und familygalerie on a website, nothing that should bring down that machine???

8

Could you post the contents of your full /proc/user_beancounters file?

9

i attached it as a file

10

Okay, so you’re bumping into 4 different resource limits there – kmemsize, numproc, tcpsndbuf, numfile.

The numproc one isn’t too bad, but the number of failures with the others is significant. You may want to read through what each of those is used for:

http://wiki.openvz.org/UBC_secondary_parameters#kmemsize

http://wiki.openvz.org/Tcpsndbuf#tcpsndbuf

http://wiki.openvz.org/Numfile#numfile

So long as you’re hitting those OpenVZ limits, things aren’t going to work properly for you – you’ll see all sorts of strange issues while trying to get Virtualmin working.

You could attempt to lower how much RAM you’re using, which this document here can help with:

http://www.virtualmin.com/documentation/system/low-memory

But really, it looks as if the VPS you’re attempting to use isn’t setup to allow you to do the things you’re trying to do there
 you may need to contact your provider, explain the limits you’re running into, and ask how best to handle that.

-Eric

11

Experience here shows that OpenVZ just sucks for Virtualmin hosting. :frowning: Suggestion: look for a hoster that offers a decent virtualization platform that doesn’t kill your processes all the time.

If you’re looking for something in Germany, I still have room on my freshly upgraded VMWare hosts. :slight_smile: