LVM and VxVM

Deferred swap reservation failure

 
mike_586
Occasional Contributor

Deferred swap reservation failure

Hi everybody,
i am having a swap space problem in an rp7410 with 11i OS .
At the dmesg command i get the following output :

msgcnt 25903 vxfs: mesg 001: vx_nospace - /dev/vg02/mds file system full (8 block extent)
msgcnt 25905 vxfs: mesg 001: vx_nospace - /dev/vg02/mds file system full (8 block extent)
msgcnt 25907 vxfs: mesg 001: vx_nospace - /dev/vg02/mds file system full (8 block extent)
msgcnt 25909 vxfs: mesg 001: vx_nospace - /dev/vg02/mds file system full (8 block extent)
msgcnt 25911 vxfs: mesg 001: vx_nospace - /dev/vg02/mds file system full (8 block extent)
msgcnt 25913 vxfs: mesg 001: vx_nospace - /dev/vg02/mds file system full (8 block extent)
msgcnt 25915 vxfs: mesg 001: vx_nospace - /dev/vg02/mds file system full (8 block extent)
msgcnt 25917 vxfs: mesg 001: vx_nospace - /dev/vg02/mds file system full (8 block extent)
msgcnt 25919 vxfs: mesg 001: vx_nospace - /dev/vg02/mds file system full (8 block extent)
msgcnt 25921 vxfs: mesg 001: vx_nospace - /dev/vg02/mds file system full (8 block extent)
msgcnt 25923 vxfs: mesg 001: vx_nospace - /dev/vg02/mds file system full (8 block extent)
msgcnt 25925 vxfs: mesg 001: vx_nospace - /dev/vg02/mds file system full (8 block extent)
msgcnt 25927 vxfs: mesg 001: vx_nospace - /dev/vg02/mds file system full (8 block extent)
Deferred swap reservation failure pid: 15409
Deferred swap reservation failure pid: 17184

Does anybody have an idea ??

Thanks in advance
5 REPLIES 5
G. Vrijhoeven
Honored Contributor

Re: Deferred swap reservation failure

Hi,

Can you provide me the output of:
# swapinfo -tam

Gideon
Elmar P. Kolkman
Honored Contributor

Re: Deferred swap reservation failure

Could it be that pid's 15409 and 17184 were pids of tries of running swapon on a file on this filesystem?
In that case they failed because there isn't enough space on this filesystem.
Every problem has at least one solution. Only some solutions are harder to find.
mike_586
Occasional Contributor

Re: Deferred swap reservation failure

I had to reboot the machine and the information is not available , but i remember that the swap space was used only at 15%(at this moment the machine seems to work properly).
Do you have any suspicions about this behavior?
Is there something i must investigate or do in order to be prepared if this happens again?

Thanks
Mihalis
G. Vrijhoeven
Honored Contributor

Re: Deferred swap reservation failure

Hi,

I like to know if you are using swap space on a file system: man page swanon:

Paging through a file system, while slower, provides a more efficient
use of the space on the device. Space that is not being used for
paging in this case can be used by the file system. Paging across a
network to a remote machine is always file system paging.

I think your problem is that the filesystem was full. You can prevent it by adjusting the swap prios. and give the filesystem swap a lower prio ( higher number). it is done in the /etc/fstab and requiers an other reboot..

Gideon
mike_586
Occasional Contributor

Re: Deferred swap reservation failure


THANKS EVERYBODY