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strange errors [message #16425] Thu, 06 September 2007 10:17 Go to next message
slonghurst is currently offline  slonghurst
Messages: 40
Registered: September 2006
Location: UK
Member
Hi, Have been using openvz for a bout a year now with no problem. All of a sudden today. I started having errors with users connecting to a virtual node via ftp and uploading files. Users were unable to and were given an error local file processing. It turns out this this is the same for all the virtual servers. I thought it was diskspace but most were only at 50% the quota. When doing df command though all said they were at 100% used. A few reboots of the virtual host later and now when starting the virtual nodes, mysql will not run and I still cannot write files via ftp.

I can connect via ssh and copy files, i can also use wget and download files to these servers.

Any help greatly appreciated

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Re: strange errors [message #16427 is a reply to message #16425] Thu, 06 September 2007 11:14 Go to previous messageGo to next message
slonghurst is currently offline  slonghurst
Messages: 40
Registered: September 2006
Location: UK
Member
I have done some updates to vzctl and vzquota, and now on the host node the df output is this

Filesystem 1K-blocks Used Available Use% Mounted on
/dev/mapper/VolGroup00-LogVol00
138851328 132642092 0 100% /
/dev/sda1 101086 73436 22431 77% /boot
none 514972 0 514972 0% /dev/shm


Before a few reboots ago the used on /dev/mapper/VolGroup... was only at about 67gb

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Re: strange errors [message #16428 is a reply to message #16427] Thu, 06 September 2007 11:40 Go to previous messageGo to next message
slonghurst is currently offline  slonghurst
Messages: 40
Registered: September 2006
Location: UK
Member
One thing i did do was to change DISK_QUOTA=no and this i think has caused the hostnode to think its file system is full this is stopping any of the VE's from being able to write data at this time

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Re: strange errors [message #16440 is a reply to message #16428] Thu, 06 September 2007 14:52 Go to previous messageGo to next message
khorenko is currently offline  khorenko
Messages: 533
Registered: January 2006
Location: Moscow, Russia
Senior Member
Hi,

well, looks like you have no any other way but to find who ate the diskspace. The very first idea is to check logs - might be something in kernel (/var/log/messages) or any application went wrong and it began to write messages about the problem at a high rate and thus filled the disk.
At the same time if you did switch off the quiotas any VE user also could fill the disk.

Good luck in the search.

If your problem is solved - please, report it!
It's even more important than reporting the problem itself...

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Re: strange errors [message #16442 is a reply to message #16440] Thu, 06 September 2007 15:39 Go to previous message
slonghurst is currently offline  slonghurst
Messages: 40
Registered: September 2006
Location: UK
Member
hi

Yes i did chaneg that setting and i think this is what has broken it. I re-read the install and it says about not doing this if the ve on the root directory tree which it was. I have given up trying to work out how to rectify this and am reinstalling after backing up my nodes.

Shaun

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