Diagnosing client data (vmstat) 🔗 link

Two questions:

1. what's the format of [vmstat] ouput that the Hobbit server is expecting? The sar command is not available, so I'm substituting with iostat output that
looks like:

  [vmstat]
cpu utilizaton stat using iostat:
0 0 0 0 0 0 0 0 0 0 16 1 0 13 0 0 0 100
0 0   0 0   0 0 0 0 0 0   0 0 0 0 0 100 0

where the 2nd last tine is the actual iostat output (iostat 300 2)
and last line is what I think Hobbit is expecting.
  Tthe last 4 numbers, 0 0 100 0  are usr, sys, idle and iowait,   that I parsed from iostat output.

2. on server side, how do we debug/trace when client data have arrived?
There's hist, histlogs, hostdata, logs.  I would like to see some reponse to events like: data arriving, data interpreted/extracted, etc.

Thank you,

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On Thu, Aug 30, 2007 at 11:39:11AM -0400, ye-fee liang wrote:

Depends on the operating system. Hobbit uses the operating system ID
(usually "uname -s" converted to lowercase) to identify what sequence
the vmstat columns are in, and based on that feeds the data into the
corresponding datasets in the vmstat RRD file.

Won't work, unless you write code in Hobbit to parse it. What operating
system is this ? IRIX, I suppose - it's  the only one where the client uses
"sar" to collect vmstat data.

2. on server side, how do we debug/trace when client data have arrived?

Login as the hobbit user and run 

   bbcmd hobbitd_channel --channel=client cat

This will dump the client-data messages that Hobbit receives.


Regards,
Henrik

Wow!  Your response is faster than any commercial service I've seen.

Anyway, the OS is SunOS; I'm customizing hobbitclient-sunos.sh, so it's sending
iostat output instead of vmstat under the vmstat section.  Could I format the
output so the server receiving it will think it's coming from vmstat?

The vmstat on Sun server does not display the io-wait time, so I substituted
using sar, except for this one which does not have sar installed.
  
SunOS server 5.10 Generic_118833-17 sun4v sparc SUNW,Sun-Fire-T200

$ vmstat 2 2
 kthr      memory            page            disk          faults      cpu
 r b w   swap  free  re  mf pi po fr de sr m1 m3 m4 m5   in   sy   cs us sy id
 0 0 0 29045048 14792424 8 30 6 0  0  0  0  0  0  0  0  683  294  694  0  0 100
 0 0 0 28957904 14589248 0 5 0  0  0  0  0  0  0  0  0  808  514  797  0  0 100


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Why dont you use the bb-iostat.sh script on deadcat,  probably does some
of the stuff you need....it does need to be modified for graphing the
numbers.

Trent

On Thu, 2007-08-30 at 12:48 -0400, ye-fee liang wrote:

Since the topic of vmstat is alreading started 

I have a system in which de vmstat output is slightly different from the linux expected output. 
Here, the IDLE and WAIT time are switched. Causing Hobbit to think the wait is is very large and the idle time is very
low. 
(see example) 
[vmstat]
procs                      memory      swap          io     system         cpu
 r  b   swpd   free   buff  cache   si   so    bi    bo   in    cs us sy wa id
 2  0 164232  34532  67736  44528    0    1     1     4    8     6  1  0  0  5
 1  0 164232  33000  67604  45072    0    0     1    29  141   126  3  0  0 97

This is on a hardened linux system. 
Is there a known os which also has this way of reporting the vmstat info 

Regards, 

Bert Klomp 

-----Original Message-----
From: Henrik Stoerner [mailto:user-ce4a2c883f75@xymon.invalid] 
Sent: donderdag 30 augustus 2007 17:54
To: user-ae9b8668bcde@xymon.invalid
Subject: Re: [hobbit] Diagnosing client data (vmstat)

On Thu, Aug 30, 2007 at 11:39:11AM -0400, ye-fee liang wrote:

Depends on the operating system. Hobbit uses the operating system ID
(usually "uname -s" converted to lowercase) to identify what sequence
the vmstat columns are in, and based on that feeds the data into the
corresponding datasets in the vmstat RRD file.

Won't work, unless you write code in Hobbit to parse it. What operating
system is this ? IRIX, I suppose - it's  the only one where the client uses
"sar" to collect vmstat data.

Login as the hobbit user and run 

   bbcmd hobbitd_channel --channel=client cat

This will dump the client-data messages that Hobbit receives.


Regards,
Henrik

On Fri, Aug 31, 2007 at 12:31:31PM +0200, Klomp, H. wrote:

Start your Hobbit client on this box with the "--os=rhel3" option. For
some perverse reason, there is a vmstat version that does this, and it
is used in Red Hat Enterprise Linux 3.


Regards,
Henrik