Excellent .. thanks a bunch guys.
And I leaned something new about mrtg :-)
------
thanks
kevin.foote
On Wed, 14 Apr 2010, Steve Shipway wrote:
-> > My super simple conversion script is not working as It did in an older
-> > setup. The script itself is super simple..
-> >
-> > # my convert routine
-> > sub Kb2B {
-> > my $value = shift;
-> > return ($value * 1024);
-> > }
-> >
-> ...
-> > Here is the error I get in mrtg.log
-> > -- Can't modify non-lvalue subroutine call at (eval 14) line 1.
->
-> This is almost certainly because the $value is non-numeric (an unknown).
Your script does not handle that case and ($value*1024) would have this problem.
->
-> However, there is a much more efficient way to achieve a simple
multiplication by 1024!
->
-> Instead of
-> Target[xxxx]: oid&oid:c...@host|Kb2B
-> why not simply use
-> Target[xxxx]: oid&oid:c...@host * 1024
-> (note the spaces around the *)
-> This will multiply both retrieved values by 1024, taking proper account of
unknowns.
->
-> Steve
->
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