[hobbit] Hobbit 4.2.0 client and memory checks

[Dominique Frise]

Ward, Martin wrote:
> Hi all,
> 
> An issue has arisen over the Christmas period that is causing me some
> confusion. I have a Sun server running sparc Solaris 10 which has the
> 4.2.0 Hobbit client installed on it, this client sends its data to my
> 4.2.2 Xymon server. The client machine has 64GB of memory and 16GB of
> swap space.
> 
> The issue I have at the moment is that Xymon's web pages show the server
> as having 64GB (or so) of swap and the swap is 91% full, yet a swift
> look on the server itself shows it to have on 16GB of swap and none of
> which is in use.
> 
> I have also confirmed that the machine this data is coming from is the
> same as the one I think it is and that I am not logging on to a
> different server!
> 
> The relevant portions of the client data are as follows:
> 
> [df]
> Filesystem            kbytes    used   avail capacity  Mounted on
> /dev/odm                   0       0       0     0%    /dev/odm
> swap                 5123480    1328 5122152     1%    /etc/svc/volatile
> swap                 5122440     304 5122136     1%    /tmp
> swap                 5122136       0 5122136     0%    /dev/vx/dmp
> swap                 5122136       0 5122136     0%    /dev/vx/rdmp
> /dev/md/dsk/d0       16525754 8227674 8132823    51%    /
> /dev/md/dsk/d30      16525754 5177145 11183352    32%    /var
> /dev/md/dsk/d40      1025903  654865  309484    68%    /home
> ...
> [top]
> load averages:  2.26,  2.30,  1.84;                    up 33+21:36:10
> 12:20:22
> 158 processes: 156 sleeping, 2 on cpu
> 
> Memory: 64G phys mem, 15G free mem, 16G swap, 16G free swap
> ...
> [vmstat]
>  kthr      memory            page            disk          faults
> cpu
>  r b w   swap  free  re  mf pi po fr de sr m0 m1 m2 m1   in   sy   cs us
> sy id
>  0 0 0 23250064 29333720 407 464 877 1891 1885 0 0 13 8 8 0 1862 9947
> 5678 5 1 93
>  0 0 0 5123960 15420256 642 583 460 6928 6905 0 0 19 12 12 0 5384 34448
> 17397 15 4 81
> ...
> 
> So as you can see from the [top] section above the server has only 16GB
> of swap configured, yet the memory web page for this server has:
> 
>  Tue Jan 6 12:40:20 GMT 2009 - Memory CRITICAL
> 
>       Memory              Used       Total  Percentage
> green Physical          49541M      65536M         75%
> red   Swap              57495M      62474M         92%
> 
> 
> I guess I am having a problem understanding how Xymon interprets memory.
> I am fairly sure I have looked at this in the past but I still don't
> understand it 8-(
> 
> |\/|
> 
> --  
> Martin W. Ward
> TAC Network Systems Team Leader
> COLT
> Unit 12, Powergate Business Park
> Volt Avenue, Park Royal, London
> NW10 6PW, United Kingdom
> 
> Tel: + 44 (0)20 7863 5218   Internal: 8 441 5218
> Fax: + 44 (0)20 7863 5610
> Email: martin.ward at colt.net 
> www.colt.net
> 
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Dominique