On 29. jun. 2005, at 20.58, Brian Fundakowski Feldman wrote:
On Wed, Jun 29, 2005 at 03:28:09PM +0200, Eirik Øverby wrote:
On 28. jun. 2005, at 16.58, Brian Fundakowski Feldman wrote:
On Tue, Jun 28, 2005 at 10:37:29AM +0200, Eirik Øverby wrote:
Hi,
I have, since upgrading to 5.x and updating my management tools,
seen
a number of problems relating to stopping jails.
I'm maintaining several hosts with a number of full-featured jails
(i.e. full virtual FreeBSD installations in each jail), and in
general this works fine. However, whenever I stop a jail using
'jexec
<id> kill -SIGNAL -1' or 'jexec <id> /bin/sh /etc/rc.shutdown' (in
various combinations), jails have a tendency to stick around for
minutes or hours - according to 'jls'. Often I see an entry in
'netstat -a' indicating that there is one or more sockets in
FIN_WAIT
state, preventing the jail from coming down. Taking the virtual
network interface (alias) down does not help. All I can do at this
point is wait.
I normally use 'jls' to determine whether or not a jail can be
restarted (i.e. it's not running), but this is pretty useless in
such
cases. And right now I have a case where 'netstat -a' shows me
nothing pertaining to the jail, though it has no processes
running. I
have therefore force-started the jail again, which seems to work
nicely, but now 'jls' gives me two entries for this jail, with
different JIDs.
What am I doing wrong here?
You could just use ps to check for jailed processes and check their
respective jails using the procfs status entry (at least according
to the ps manpage...)
My jailctl script can do both - list by jls and list by processes in
the jail. There are NO processes running in the jail.
So it's obviously not running, and you can mark its state as such.
...which is what I do on FreeBSD 4.x, but on 5.x the 'jls' command
still claims the jail is running. I think this is unbelieveably
dirty. Also, using /proc to determine if a jail is still running is a
bad idea, as mounting /proc is depreceated.
/Eirik
--
Brian Fundakowski Feldman
\'[ FreeBSD ]''''''''''\
<> [EMAIL PROTECTED] \ The Power
to Serve! \
Opinions expressed are my own.
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