I would study the code in hobbitgraph for graphing disk partition sizes, or for graphing usage on multi-CPU systems. This might help you with the "graph whatever you find" problem. I haven't worked with this myself, so I am no help...
GLH
-----Original Message----- From: Jeff Newman [mailto:jeffnewman75 at gmail.com] Sent: Monday, March 20, 2006 12:58 PM To: hobbit at hswn.dk Subject: Re: [hobbit] urgent rrd help needed - im desperate!
Rather than focus on sar (Im going to have this problem with several tests I have) let me approach this question slightly different.
I have host A and host B. They both have a program that looks at queues. there is a requirement on host A to only look at queue A, and on host B, they want to see queue's A & B.
Host A sends a status message (with a test called qmeter) that has:
aqueue:#
Host B sends a status message (with a test called qmeter) that has:
aqueue:# bqueue:#
each host has an RRD that has it's own dataset (i.e. a DS for just aqueue or a DS for both a and bqueue). That all works great. The problem is the graphing. If the graph definition looks like this:
[qmeter] TITLE 1 Second qmeter YAXIS Avg. Messages per second DEF:aqueue=qmeter.rrd:aqueue:AVERAGE DEF:bqueue=qmeter.rrd:bqueue:AVERAGE LINE1:aqueue#CC3333:a queue LINE1:bqueue#FF0000:b queue COMMENT:\n GPRINT:aqueue:LAST:a Queue \: %5.1lf%s (cur) GPRINT:aqueue:MAX: \: %5.1lf%s (max) GPRINT:aqueue:MIN: \: %5.1lf%s (min) GPRINT:aqueue:AVERAGE: \: %5.1lf%s (avg)\n GPRINT:bqueue:LAST:b Queue \: %5.1lf%s (cur) GPRINT:bqueue:MAX: \: %5.1lf%s (max) GPRINT:bqueue:MIN: \: %5.1lf%s (min) GPRINT:bqueue:AVERAGE: \: %5.1lf%s (avg)\n
This obviously works great for host B, but on host A where only there A queue is defined in the RRD, this doesn't work, it won't even draw the graph.
Using RRDIDX won't work because it relies on numbers. So I am stuck on how to make this graph properly, and using a server-side script is all I can think of. Would this be the correct approach, or is there a trick in hobbitgraph.cfg that I don't know about?
-Jeff
On 3/20/06, Hubbard, Greg L <greg.hubbard at eds.com> wrote:
Is there one sar graph per host, or multiple?
I agree with your assessment -- creating explicit custom graphs is easier than trying to make ncv_whatever work.
Beware of the many moving parts:
A) the "pitcher" -- a custom script run by the client to send over a status page which the server will associate with a column. Do yourself a favor and send the data in a format that is uniquely recognized at the server end. You can see what is sent by looking at the Web page associated with the column for a node. Henrik also suggests defining $BB as "echo" during the early process so you can see what is being sent by looking through the client log.
B) the "catcher" -- a custom script run by the server to process the data in a status page for a custom test. You are only allowed ONE (1)
catcher script per Hobbit server, so it must be equipped to handle all
custom tests. Fortunately, the test/column name is a parameter for this script so you can use a switch statement to branch to the right code for the incoming data. Mine is handling about 7 custom tests right now.
C) the RRD format that you will use -- even Tobi's documentation is hazy on whether it is better to use one file for several variables, or
one variable in each file, or what. Experimentation, trial, and error
cannot be avoided here unless you are already the RRD guru.
D) the graph definitions in hobbitgraph.cfg -- more opportunity to learn RRD!
E) changing the right settings in hobbitserver.cfg file for TEST2RRD and GRAPHS variables.
F) Even so -- there are some limits. First, you can only have one graph on the status page for each custom test. Other graphs can be included on the trends page, but you will only get the one associated with each custom test -- unless you set the TREND: flag in bb-hosts --
which I haven't fully explored.
Hope all this helps. Even though the Hobbit documents provide a lot of pointers, there are still many places where the innocent can go wrong -- but debugging it will teach you a lot about the Hobbit innards -- which helps you appreciate the hard work Henrik and others have put into this tool...!
GLH
-----Original Message----- From: Jeff Newman [mailto:jeffnewman75 at gmail.com] Sent: Monday, March 20, 2006 11:45 AM To: hobbit at hswn.dk Subject: Re: [hobbit] urgent rrd help needed - im desperate!
Ya, I tried for about 4-6 hours to get it to work, even tried following the steps that someone previously sent in to the hobbit list. I could get it to send data, but I couldn't get the graphing portion working.
As for the problem I posted, I think I figured out what I need to do. I need to have a parsing script on the server end to parse the data into seperate RRD's. That way, I can send from the client side a test with the name "sar" (then I will only have 1 sar column) and let the server side create the sar#.rrd. Hopefully I don't have problems on the hobbitgraph.cfg end.
-Jeff
On 3/17/06, Galen Johnson <gjohnson at trantor.org> wrote:
Jeff Newman wrote:
Ok, i've been working on this for 6+ hours, and am totally stuck. Here is the script on the client:
====================================
#!/bin/sh
BB=/usr/local/hobbit/client/bin/bb BBDISP=xxx.xxx.xxx.xxx MACHINE=xxxxxx
sar -P ALL 1 1 | grep -E "^[0-9]|^( *)" | grep -v \- | grep -v cpu
|
cut -c 9-> /tmp/hobbit_sar.$$ 2>&1; mv /tmp/hobbit_sar.$$ /tmp/hobbit_sar.tmp </dev/null > /dev/null
while read aline; do CPUNUM=
echo $aline | awk '{print $1}'PUSR=echo $aline | awk '{print $2}'PSYS=echo $aline | awk '{print $3}'PWIO=`echo $aline| awk '{print $4}'
PIDL=echo $aline | awk '{print $5}'`echo "cpu"$CPUNUM"pcntusr : $PUSR" >> /tmp/hobbit_sar"$CPUNUM".msg echo "cpu"$CPUNUM"pcntsys : $PSYS" >> /tmp/hobbit_sar"$CPUNUM".msg echo "cpu"$CPUNUM"pcntwio : $PWIO" >> /tmp/hobbit_sar"$CPUNUM".msg echo "cpu"$CPUNUM"pcntidl : $PIDL" >> /tmp/hobbit_sar"$CPUNUM".msg
$BB $BBDISP "status $MACHINE.sar,"$CPUNUM" green
datecat /tmp/hobbit_sar"$CPUNUM".msg" rm /tmp/hobbit_sar"$CPUNUM".msg done < /tmp/hobbit_sar.tmp rm /tmp/hobbit_sar.tmp========================================
It sends the data just fine. (output from sh -x)
BB=/usr/local/hobbit/client/bin/bb
BBDISP=167.76.113.220
MACHINE=stlfan3
sar -P ALL 1 1
grep -E ^[0-9]|^( *)
grep -v -
grep -v cpu
cut -c 9-
1> /tmp/hobbit_sar.20750 2>& 1
mv /tmp/hobbit_sar.20750 /tmp/hobbit_sar.tmp 0< /dev/null 1>
/dev/null 0< /tmp/hobbit_sar.tmp read aline
- awk {print $1}
echo 0 2 8 1 89 CPUNUM=0
- awk {print $2}
echo 0 2 8 1 89 PUSR=2
- awk {print $3}
echo 0 2 8 1 89 PSYS=8
- awk {print $4}
echo 0 2 8 1 89 PWIO=1
- awk {print $5}
echo 0 2 8 1 89 PIDL=89
echo cpu0pcntusr : 2
1>> /tmp/hobbit_sar0.msg
echo cpu0pcntsys : 8
1>> /tmp/hobbit_sar0.msg
echo cpu0pcntwio : 1
1>> /tmp/hobbit_sar0.msg
echo cpu0pcntidl : 89
1>> /tmp/hobbit_sar0.msg
date
cat /tmp/hobbit_sar0.msg
/usr/local/hobbit/client/bin/bb --debug 167.76.113.220 status
stlfan3.sar,0 gr een Fri Mar 17 11:58:59 EST 2006
cpu0pcntusr : 2 cpu0pcntsys : 8 cpu0pcntwio : 1 cpu0pcntidl : 89
2006-03-17 11:58:59 Transport setup is: 2006-03-17 11:58:59 bbdportnumber = 1984 2006-03-17 11:58:59 bbdispproxyhost = NONE 2006-03-17 11:58:59 bbdispproxyport = 0 2006-03-17 11:58:59 Recipient listed as 'xxx.xx.xxx.xxx' 2006-03-17 11:58:59 Standard BB protocol on port 1984 2006-03-17 11:58:59 Will connect to address xxx.xx.xxx.xxx port 1984 2006-03-17 11:58:59 Connect status is 0 2006-03-17 11:58:59 Sent 121 bytes 2006-03-17 11:58:59 Closing connection
- rm /tmp/hobbit_sar0.msg
- read aline
<and so on, incrementing cpu numbers as expected.>
On the hobbit server, I want this to work like "disk" where there are
multiple file systems under one disk column. I manually created the
RRD's (again for a custom time step)
-rw-r--r-- 1 hobbit hobbit 22121176 Mar 17 10:31 sar,0.rrd -rw-r--r-- 1 hobbit hobbit 22121176 Mar 17 10:31 sar,1.rrd -rw-r--r-- 1 hobbit hobbit 22121176 Mar 17 10:31 sar,2.rrd -rw-r--r-- 1 hobbit hobbit 22121176 Mar 17 10:31 sar,3.rrd
The DS names in the rrd dump look fine: <ds> <name> cpu0pcntusr </name> <type> GAUGE </type> for example.
Note this all doesn't work if the files are just "sar0.rrd, sar1rrd
etc..." without the ,'s
Unfortunately, on the web page, it gives me 3 columns, a sar,0 sar,1 sar,2 Which is nitpicky, but if I can just have a "sar" column with
the others under it would be great (like the disk problem). Here is
the REAL problem.
Looking at the sar,0 button for example, I see the data update there,
HOWEVER, NONE of the /usr/local/hobbit/data/rrd/xxxx/sar,#.rrd files ever get updated!!! In addition, there isn't even a link for a graph in the page.
No errors in /var/log/hobbit/rrd*, or any others that I have looked
at on the client or server. Here are the .cfg files. I have tried many variations, these are just how they are now:
hobbitserver.cfg - here are the lines that I have "sar" in:
TEST2RRD="cpu=la,disk,inode,qtree,memory,$PINGCOLUMN=tcp,http=tcp,dns =t cp,dig=tcp,time=ntpstat,vmstat,iostat,netstat,temperature,apache,bind, se ndmail,mailq,nmailq=mailq,sar,socks,bea,iishealth,citrix,bbgen,bbtest, bb proxy,hobbitd,HiFlowNet="ncv",sock="ncv",qmeter="ncv",rtt="ncv"
Note, I have tried sar="ncv", sar,sar0,sar1, etc.. maybe I havn't tried the right variation :-(
GRAPHS="la,disk,inode,qtree,memory,users,vmstat,iostat,tcp.http,tcp,n et stat,mrtg::1,temperature,ntpstat,apache,bind,sendmail,mailq,socks,bea, ii shealth,citrix,bbgen,bbtest,bbproxy,hobbitd,ncv,HiFlowNet,sock,rtt,sar ,s ar0,sar1,sar2,sar3"
again, tried many variations.. and also again, maybe I havn't tried
the right one.
bb-hosts: only tried putting "xxx.xxx.xxx.xxx xxx # conn sar that didn't help
hobbitgraph.cfg:
[sar] FNPATTERN sar(.*).rrd TITLE CPU sar YAXIS % DEF:p at RRDIDX@=@RRDFN@:cpu at RRDIDX@pcntusr:AVERAGE DEF:p at RRDIDX@=@RRDFN@:cpu at RRDIDX@pcntsys:AVERAGE DEF:p at RRDIDX@=@RRDFN@:cpu at RRDIDX@pcntwio:AVERAGE DEF:p at RRDIDX@=@RRDFN@:cpu at RRDIDX@pcntidl:AVERAGE LINE2:p at RRDIDX@#@COLOR@:@RRDPARAM@ -u 100 -l 0 GPRINT:p at RRDIDX@:LAST: \: %5.1lf (cur) GPRINT:p at RRDIDX@:MAX: \: %5.1lf (max) GPRINT:p at RRDIDX@:MIN: \: %5.1lf (min) GPRINT:p at RRDIDX@:AVERAGE: \: %5.1lf (avg)\n
If anyone has anything else they need to see, let me know. I need to get this working quickly, and am at the end of my rope! I've done other custom graph's with custom RRD's, and never had this problem before.
By the way, the host is sending other custom data just fine with no problems.
Thanks for any help!
-Jeff
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Have you looked at the sar script on deadcat?...it's really very nice...it has some minor issues but works great. It might need tweaking for hobbit but I don't think it will.
=G=
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