On Sat, 10 Jan 2004 [EMAIL PROTECTED] wrote:

> I am working on a project to move various services running directly under
> FreeBSD 4.8-REL to run under jails on the same servers. Setting up the jails
> is no problem at all (I can follow manpages), and bringing the jails up
> using either '/bin/sh /etc/rc' or '/usr/local/sbin/jailer' works as well.
> Basically, I can get a jail up and running with the desired service.
> However, I've found that jails are producing some problems during my
> testing.
> 1. On several occassions I have been unable to kill a process in a jail,
> even with a 'kill -9' from inside or outside the jail as root.
> europa# ps aux|grep J
> root  90423  0.0  0.4  1268  920  p0- DJ   10:44PM   0:00.01 /bin/csh
> europa# kill 90423
> europa# ps aux | grep J
> root  90423  0.0  0.4  1268  920  p0- DJ   10:44PM   0:00.01 /bin/csh
> europa# kill -9 90423
> europa# ps aux | grep J
> root  90423  0.0  0.4  1268  920  p0- DJ   10:44PM   0:00.01 /bin/csh

stupid question, but is there anything in /var/log/messages on the base
machine to indicate any problems?  how many processes are running on that
machine?  are the processes above as indicated?  ie. are they just shells,
or are they actually running something?

> 3. If a process is hung, such as /bin/csh, then odd things happen when
> accessing the location of the jail:
> # cd /dsk/jails/
> # ll
> total 51684
> drwxr-xr-x  13 root  wheel       512 Jan 10 22:17 mail1
> -rw-------   1 root  wheel  52896075 Jan 10 20:47 skel.tgz
> # cd mail1europa
> # ll
> (ls just hangs at this point)

it sounds like what I used to experience with the 'running out of vnodes'
issue, but that is with using unionfs for a file system, and that is with
60+ jails running ... plus, the vnode problems that I was experiencing
were fixed a while back, such that its been >6months since I've
experienced that problem...

> # uname -v
> FreeBSD 4.9-STABLE #0:

# uname -v
FreeBSD 4.9-STABLE #4: Tue Jan  6 00:59:37 AST 2004     [EMAIL 

> I WANT to use jails to host most of our services, if for no other reason
> than the increase manageability, but there just seems to be a stability
> issue here. I realize I will get a lot of "It works for me", but again,
> these problems are reproducible, so I'm sure someone else has seen it. :)

I run 60+ jails per server, running just about anything you can think of
in the way of services ... no, I haven't seen this :(

Marc G. Fournier           Hub.Org Networking Services (http://www.hub.org)
Email: [EMAIL PROTECTED]           Yahoo!: yscrappy              ICQ: 7615664
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