Hi,
I see strange vmstat graphs on these 2 Oses : Redhat AS 2.1 (ia32) and Redhat AS 3 (ia32 and ia64). It seems that some columns were inverted or shifted, here is the output of vmstat on a redhat 2.1 :
procs memory swap io system cpu r b w swpd free buff cache si so bi bo in cs us sy id 10 0 0 4828 12240 74940 36412 0 0 0 0 0 0 0 0 0 1 0 0 4828 13000 74940 36424 0 0 0 90 141 189 15 21 65 0 0 0 4828 13000 74940 36424 0 0 0 0 129 27 0 0 100 0 0 0 4828 13100 74940 36420 0 0 0 12 138 31 1 0 99 0 0 0 4828 13100 74940 36420 0 0 0 0 129 21 0 0 100
and another one from a redhat 3 :
procs memory swap io system cpu r b swpd free buff cache si so bi bo in cs us sy wa id 91 0 4791520 31616 466384 1412464 10 27 58 89 552 7022 36 9 7 48 1 0 4791520 34576 466384 1412832 0 0 0 266 5473 19909 25 23 0 52 1 0 4791520 31792 466384 1412816 0 0 0 8 5716 18403 23 5 0 72 2 0 4792560 32512 466384 1411840 0 347 0 540 5496 18243 33 9 0 58 3 0 4792560 32512 466384 1411936 0 0 0 132 5139 17295 18 5 0 77 0 0 4792560 32608 466400 1412032 0 0 0 13 5106 17191 19 7 0 74
It seems graphs don't care about the idle column. I put the output from a redhat as 4 (update 2) :
procs -----------memory---------- ---swap-- -----io---- --system-- ----cpu---- r b swpd free buff cache si so bi bo in cs us sy id wa 0 0 96 44128 217952 3371248 0 0 1 17 0 0 1 0 98 0 0 0 96 44064 217952 3371248 0 0 0 12 2080 55 0 0 100 0 0 0 96 44064 217952 3371248 0 0 0 24 2076 48 0 0 100 0 0 0 96 44128 217952 3371248 0 0 0 12 2080 54 0 0 100 0 0 0 96 54240 217952 3371248 0 0 0 17 2073 54 0 0 100 0
On this particular os, vmstat graphs are ok. On a Debian 3.1 system, graphs look good too. So, what can I do ? Is there a file to modify, a package to install ? Remove Redhat and install a Debian...
Regards,
Thomas Seglard
"Jeff Newman" <jeffnewman75 at gmail.com> a écrit sur 10/03/2006 00:37:57 :
Ill be very generic and vague here, because I don't have much time, but I hope it helps point you in the right direction.
What I have done is create a "high-flow xxx" new test, because, you have to re-do the RRD file with the different step interval.
I would then copy the existing http test, and then write a wrapper that throws the script into an infinite loop like:
while true; do /usr/local/hobbit/client/ext/httptest.sh sleep 1 done
and put that wrapper script into the hobbitclient conf. script in the etc dir.
Then you'll have to configure the custom test on the server, the same way you would any other. (Following Henrik's guide he has posted to the group before)
Just make sure you create the RRD file yourself FIRST. As Henrik has stated, hobbit will happily update a pre-existing RRD file. If you let hobbit create the RRD, it will do it at a 5 minute step rate.
-Jeff
On 3/9/06, Marsh, Ian <ian.marsh at hants.gov.uk> wrote:
We're currently experiencing a problem with httpd on one of our servers that isn't being caught by hobbit. Is it possible to specify a custom test interval for just one test on one server? The hope is that it'll stand a better chance of catching the problem if it runs, say, every minute rather than every 5 minutes. Thank you, Ian Marsh
IT Services, Network Services Hampshire County Council Telephone: 01962 845235 HPSN: 200 5235 em ail: ian.marsh at hants.gov.uk
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