Daniel Hokka Zakrisson wrote:
> Roderick A. Anderson wrote:
>> My thanks to Daniel and Herbert for their help on the IRC (I'm raa)
>> yesterday. I now have the CIF share mounting in the context/namespace
>> when the guest is started.
>>
>> But when I stop the guest it is not un-mounted and when I start the
>> guest back up a new mount is created.
>
> What makes you think that? When the last process in a namespace exits,
> everything will be implicitly unmounted.
This is a long post. Sorry but I wanted to show my results.
Some background. Host and guests are CentOS 5 with the latest updates
off your repository. Four XEON processors. Old system so only single
cores. Hardware RAID 5.
Here is my testing of various startup processes. Each test is prefixed
with a ###. As you will see each guest start/restart with a
fstab.remote CIFS mount shows up as a new mount using df.
As I ran these I got thinking I probably created the guest with strange
settings so here is the incantation:
vserver $GUEST build -m yum --context $CONTEXT \
--hostname $FQDN \
--interface $IFACEID=$NETDEV:$IP/$PREFIX \
--initstyle sysv -- -d centos5
### Vserver kernel only from a reboot:
[root@admin ~]# df
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/rd/c0d0p6 5407568 1775760 3352684 35% /
/dev/rd/c0d0p1 256666 27898 215516 12% /boot
tmpfs 1557504 0 1557504 0% /dev/shm
/dev/rd/c0d0p3 5080828 345592 4472976 8% /var
/dev/rd/c0d0p2 54668984 4466208 47380960 9% /vservers
[root@admin ~]# vserver-stat
CTX PROC VSZ RSS userTIME sysTIME UPTIME NAME
### Vserver kernel with util-vserver, vprocunhide, and vservers-default
but no CIFS mount in the rptas guest from a system reboot.
[root@admin ~]# df
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/rd/c0d0p6 5407568 1775760 3352684 35% /
/dev/rd/c0d0p1 256666 27898 215516 12% /boot
tmpfs 1557504 0 1557504 0% /dev/shm
/dev/rd/c0d0p3 5080828 345872 4472696 8% /var
/dev/rd/c0d0p2 54668984 4466320 47380848 9% /vservers
[root@admin ~]# vserver-stat
CTX PROC VSZ RSS userTIME sysTIME UPTIME NAME
195 7 97.1M 8.5M 0m00s67 0m01s49 0m51s56 db3
196 2 4.7M 1.6M 0m00s21 0m00s21 0m43s84 tsdev
198 3 9.5M 2.6M 0m00s20 0m00s19 0m44s82 tsda
200 3 9.5M 2.7M 0m00s55 0m00s57 0m40s21 rt3
204 3 9.5M 2.6M 0m00s60 0m00s61 0m51s56 rptmp
1195 3 9.7M 2.5M 0m00s22 0m00s23 0m51s56 asns
1196 3 9.8M 2.5M 0m00s23 0m00s20 0m51s56 rptas
1197 3 9.8M 2.5M 0m00s22 0m00s21 0m51s56 mx0
1199 3 9.8M 2.5M 0m00s23 0m00s22 0m51s56 rad2
### vserver rptas restart with CIFS mount in the rptas guest:
[root@admin rptas]# df
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/rd/c0d0p6 5407568 1775764 3352680 35% /
/dev/rd/c0d0p1 256666 27898 215516 12% /boot
tmpfs 1557504 0 1557504 0% /dev/shm
/dev/rd/c0d0p3 5080828 345892 4472676 8% /var
/dev/rd/c0d0p2 54668984 4466320 47380848 9% /vservers
//66.162.136.140/5h4r3@h3l7
54668984 4466320 47380848 9%
/vservers/rptas/mnt/mailas
[root@admin rptas]# vserver-stat
CTX PROC VSZ RSS userTIME sysTIME UPTIME NAME
195 7 97.1M 8.6M 0m00s67 0m01s51 5m18s43 db3
196 2 4.7M 1.6M 0m00s21 0m00s21 5m10s71 tsdev
198 3 9.5M 2.6M 0m00s20 0m00s19 5m10s95 tsda
200 3 9.5M 2.7M 0m00s55 0m00s57 5m07s83 rt3
204 3 9.5M 2.6M 0m00s60 0m00s62 5m18s43 rptmp
1195 3 9.7M 2.5M 0m00s22 0m00s23 5m18s43 asns
1196 3 9.8M 2.5M 0m00s21 0m00s15 0m10s34 rptas
1197 3 9.8M 2.5M 0m00s22 0m00s21 5m18s43 mx0
1199 3 9.8M 2.5M 0m00s23 0m00s22 5m18s43 rad2
### vserver rptas restart (again).
[root@admin rptas]# df
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/rd/c0d0p6 5407568 1775764 3352680 35% /
/dev/rd/c0d0p1 256666 27898 215516 12% /boot
tmpfs 1557504 0 1557504 0% /dev/shm
/dev/rd/c0d0p3 5080828 345908 4472660 8% /var
/dev/rd/c0d0p2 54668984 4466320 47380848 9% /vservers
//66.162.136.140/5h4r3@h3l7
54668984 4466320 47380848 9%
/vservers/rptas/mnt/mailas
//66.162.136.140/5h4r3@h3l7
54668984 4466320 47380848 9%
/vservers/rptas/mnt/mailas
[root@admin rptas]# vserver-stat
CTX PROC VSZ RSS userTIME sysTIME UPTIME NAME
195 7 97.1M 8.6M 0m00s67 0m01s51 6m39s72 db3
196 2 4.7M 1.6M 0m00s21 0m00s21 6m32s11 tsdev
198 3 9.5M 2.6M 0m00s20 0m00s19 6m32s24 tsda
200 3 9.5M 2.7M 0m00s55 0m00s57 6m28s37 rt3
204 3 9.5M 2.6M 0m00s60 0m00s62 6m39s73 rptmp
1195 3 9.7M 2.5M 0m00s22 0m00s24 6m39s73 asns
1196 3 9.8M 2.5M 0m00s19 0m00s16 0m11s51 rptas
1197 3 9.8M 2.5M 0m00s22 0m00s21 6m39s73 mx0
1199 3 9.8M 2.5M 0m00s23 0m00s22 6m39s73 rad2
### vserver rptas stop
[root@admin rptas]# df
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/rd/c0d0p6 5407568 1775764 3352680 35% /
/dev/rd/c0d0p1 256666 27898 215516 12% /boot
tmpfs 1557504 0 1557504 0% /dev/shm
/dev/rd/c0d0p3 5080828 345908 4472660 8% /var
/dev/rd/c0d0p2 54668984 4466308 47380860 9% /vservers
//66.162.136.140/5h4r3@h3l7
54668984 4466308 47380860 9%
/vservers/rptas/mnt/mailas
//66.162.136.140/5h4r3@h3l7
54668984 4466308 47380860 9%
/vservers/rptas/mnt/mailas
[root@admin rptas]# vserver-stat
CTX PROC VSZ RSS userTIME sysTIME UPTIME NAME
195 7 97.1M 8.6M 0m00s67 0m01s51 7m57s20 db3
196 2 4.7M 1.6M 0m00s21 0m00s21 7m49s49 tsdev
198 3 9.5M 2.6M 0m00s20 0m00s19 7m49s72 tsda
200 3 9.5M 2.7M 0m00s55 0m00s57 7m45s85 rt3
204 3 9.5M 2.6M 0m00s60 0m00s62 7m57s21 rptmp
1195 3 9.7M 2.5M 0m00s22 0m00s24 7m57s20 asns
1197 3 9.8M 2.5M 0m00s22 0m00s21 7m57s20 mx0
1199 3 9.8M 2.5M 0m00s23 0m00s22 7m57s20 rad2
### vserver rptas start
[root@admin rptas]# df
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/rd/c0d0p6 5407568 1775764 3352680 35% /
/dev/rd/c0d0p1 256666 27898 215516 12% /boot
tmpfs 1557504 0 1557504 0% /dev/shm
/dev/rd/c0d0p3 5080828 345928 4472640 8% /var
/dev/rd/c0d0p2 54668984 4466320 47380848 9% /vservers
//66.162.136.140/5h4r3@h3l7
54668984 4466320 47380848 9%
/vservers/rptas/mnt/mailas
//66.162.136.140/5h4r3@h3l7
54668984 4466320 47380848 9%
/vservers/rptas/mnt/mailas
//66.162.136.140/5h4r3@h3l7
54668984 4466320 47380848 9%
/vservers/rptas/mnt/mailas
[root@admin rptas]# vserver-stat
CTX PROC VSZ RSS userTIME sysTIME UPTIME NAME
195 7 97.1M 8.6M 0m00s67 0m01s51 8m53s79 db3
196 2 4.7M 1.6M 0m00s21 0m00s21 8m46s81 tsdev
198 3 9.5M 2.6M 0m00s20 0m00s19 8m46s31 tsda
200 3 9.5M 2.7M 0m00s55 0m00s57 8m42s44 rt3
204 3 9.5M 2.6M 0m00s60 0m00s62 8m53s80 rptmp
1195 3 9.7M 2.5M 0m00s22 0m00s24 8m53s80 asns
1196 3 9.8M 2.5M 0m00s19 0m00s17 0m22s65 rptas
1197 3 9.8M 2.5M 0m00s22 0m00s21 8m53s80 mx0
1199 3 9.8M 2.5M 0m00s23 0m00s22 8m53s80 rad2
### Vserver kernel with util-vserver, vprocunhide, and vservers-default
with CIFS mount in the rptas guest from a system reboot.
[root@admin ~]# df
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/rd/c0d0p6 5407568 1775764 3352680 35% /
/dev/rd/c0d0p1 256666 27898 215516 12% /boot
tmpfs 1557504 0 1557504 0% /dev/shm
/dev/rd/c0d0p3 5080828 346276 4472292 8% /var
/dev/rd/c0d0p2 54668984 4466328 47380840 9% /vservers
//66.162.136.140/5h4r3@h3l7
54668984 4466328 47380840 9%
/vservers/rptas/mnt/mailas
[root@admin ~]# vserver-stat
CTX PROC VSZ RSS userTIME sysTIME UPTIME NAME
195 7 97.1M 8.5M 0m00s68 0m00s99 0m49s10 db3
196 2 4.7M 1.6M 0m00s20 0m00s21 0m41s48 tsdev
198 3 9.5M 2.6M 0m00s20 0m00s20 0m41s96 tsda
200 3 9.5M 2.7M 0m00s58 0m00s55 0m38s52 rt3
204 3 9.5M 2.6M 0m00s62 0m00s59 0m49s10 rptmp
1195 3 9.8M 2.5M 0m00s22 0m00s19 0m49s11 asns
1196 3 9.8M 2.5M 0m00s22 0m00s22 0m48s57 rptas
1197 3 9.8M 2.5M 0m00s23 0m00s22 0m49s10 mx0
1199 3 9.8M 2.5M 0m00s23 0m00s22 0m49s10 rad2
### service vservers-default restart
[root@admin ~]# df
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/rd/c0d0p6 5407568 1775764 3352680 35% /
/dev/rd/c0d0p1 256666 27898 215516 12% /boot
tmpfs 1557504 0 1557504 0% /dev/shm
/dev/rd/c0d0p3 5080828 346496 4472072 8% /var
/dev/rd/c0d0p2 54668984 4466340 47380828 9% /vservers
//66.162.136.140/5h4r3@h3l7
54668984 4466340 47380828 9%
/vservers/rptas/mnt/mailas
//66.162.136.140/5h4r3@h3l7
54668984 4466340 47380828 9%
/vservers/rptas/mnt/mailas
[root@admin ~]# vserver-stat
CTX PROC VSZ RSS userTIME sysTIME UPTIME NAME
195 7 97.1M 8.5M 0m00s70 0m00s94 0m14s31 db3
196 2 4.7M 1.6M 0m00s21 0m00s17 0m11s43 tsdev
198 3 9.5M 2.6M 0m00s21 0m00s16 0m11s38 tsda
200 3 9.5M 2.6M 0m00s55 0m00s51 0m09s71 rt3
204 3 9.5M 2.7M 0m00s62 0m00s60 0m14s34 rptmp
1195 3 9.8M 2.5M 0m00s24 0m00s20 0m14s10 asns
1196 3 9.8M 2.5M 0m00s24 0m00s21 0m14s57 rptas
1197 3 9.8M 2.5M 0m00s24 0m00s19 0m14s13 mx0
1199 3 9.8M 2.5M 0m00s24 0m00s21 0m14s39 rad2
>
>> I didn't see any mention of how to un-mount (automagically) on the Great
>> Flower Page. Nor did I see anything like 'initialize' for when the
>> guest has stopped. (A "vnamespace --enter <xid> -- umount
>> /mnt/mount-point" kind of worked.)
>
> If you think it's necessary, postpost-stop should do the trick (though the
> vnamespace would be unnecessary, it's already in the namespace).
>
>> I'll continue looking and playing but a pointer where to look would be
>> great.
>>
>>
>> TIA,
>> Rod
>
Received on Thu Nov 29 19:15:12 2007