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Re: [hobbit] mysql monitor

To: hobbit (at) hswn.dk
Subject: Re: [hobbit] mysql monitor
From: Dominique Frise <Dominique.Frise (at) unil.ch>
Date: Thu, 01 Jun 2006 12:20:59 +0200
Organization: University of Lausanne
References: <OF4195BA0D.502B49E6-ONC1257180.002EB946-C1257180.002F7D36@cnp.fr>
User-agent: Mozilla/5.0 (X11; U; SunOS sun4u; en-US; rv:1.7.12) Gecko/20051003

thomas.seglard.enata (at) cnp.fr wrote:

Hi,
I've done all of that and I didn't get it to work ! Is there another thing to do ? I'm looking at the man-page (hobbitd_rrd) but it's the same example ! I put the line NCV_mysql="Uptime:NONE,Queriespersecondavg:GAUGE" into hobbitserver.cfg but what can I do to have the corresponding graph appear in "trends" ? Thanks a lot for your help !
Thomas
"Ralph Mitchell" <ralphmitchell (at) gmail.com> a écrit sur 31/05/2006 07:25:11 :
Looks like I've got these:
in hobbitgraph.cfg:
  [mysqlslow]
       TITLE MySQL Slow Queries
       YAXIS Slow Queries
       DEF:slow=mysql.rrd:Slowqueries:AVERAGE
       LINE2:slow#00CCCC:Slow Queries
       COMMENT:\n
       GPRINT:slow:LAST: \: %5.1lf (cur)
       GPRINT:slow:MAX: \: %5.1lf (max)
       GPRINT:slow:MIN: \: %5.1lf (min)
       GPRINT:slow:AVERAGE: \: %5.1lf (avg)\n
  [mysqlthread]
       TITLE MySQL Active Threads
       YAXIS Threads
       DEF:threads=mysql.rrd:Threads:AVERAGE
       AREA:threads#00CCCC:Threads
       COMMENT:\n
       GPRINT:threads:LAST: \: %5.1lf (cur)
       GPRINT:threads:MAX: \: %5.1lf (max)
       GPRINT:threads:MIN: \: %5.1lf (min)
       GPRINT:threads:AVERAGE: \: %5.1lf (avg)\n
in hobbitserver.cfg:
  TEST2RRD="cpu=la,disk...mysql=ncv"
  GRAPHS="la,disk...mysql:mysqlslow,mysql:mysqlthread"
  NCV_mysql="Uptime:NONE,Queriespersecondavg:GAUGE"
The status line from one host reads: Uptime: 5421958 Threads: 1 Questions: 1051219 Slow queries: 577 Opens: 80325 Flush tables: 189 Open tables: 63

The Uptime value is discarded and the rest go into the mysql.rrd. Only the "Slow queries" and "Thread" graphs show on the Trends page.
It may not be optimal, but I am getting graphs... :)
Ralph Mitchell
On 5/30/06, Jason Chambers <Jason.Chambers (at) geosoft.com > wrote:
No Rush! :D
Jason Chambers IT Helpdesk Support [image supprimée] eosoft Inc. 85 Richmond St. West - 8th Floor Toronto, Ontario, Canada M5H 2C9 Tel: 416-369-0111 x344 Fax: 416-369-9599 www.geosoft.com

From: Ralph Mitchell [mailto:ralphmitchell (at) gmail.com] Sent: Monday, May 29, 2006 8:47 PM
To: hobbit (at) hswn.dk
Subject: Re: [hobbit] mysql monitor
I don't have immediate access to the hobbit server - it's at work, I'/m at home... Tomorrow night, OK?

Ralph Mitchell
On 5/29/06, Jason Chambers <Jason.Chambers (at) geosoft.com> wrote: I finally figured out that I made a typo for my hobbitlaunch.cfg file. Can you help me get the graphing working too? I never done it before, and mostly relied on the server being able to do that.

Jason Chambers IT Helpdesk Support eosoft Inc. 85 Richmond St. West - 8th Floor Toronto, Ontario, Canada M5H 2C9 Tel: 416-369-0111 x344 Fax: 416-369-9599 www.geosoft.com

From: Ralph Mitchell [mailto:ralphmitchell (at) gmail.com] Sent: Saturday, May 27, 2006 1:12 AM To: hobbit (at) hswn.dk Subject: Re: [hobbit] mysql monitor

Hmm... I just downloaded the current bb-mysqlstatus.tar.gz from
deadcat.net
, diffed bb-mysqlstat.sh against the one I have running on a hobbit server, and the only change I made was to replace VALIDMYSQLUSER & VALIDMYSQLPASSWORD.

The status page shows: Sat May 27 00:05:21 CDT 2006 - Mysql OK Uptime: 286 Threads: 1 Questions: 2916 Slow queries: 0 Opens: 37 Flush tables: 1 Open tables: 31 Queries per second avg: 10.196
This is on a Sun E450 running Gentoo, linux kernel 2.6.16, MySQL-4.1.19.
Ralph Mitchell
On 5/26/06, Jason Chambers <Jason.Chambers (at) geosoft.com> wrote:
Hi,
Does anyone have a mysql monitor working for hobbit client? I suck at reprogramming the one on deadcat.net

Jason Chambers IT Helpdesk Support eosoft Inc. 85 Richmond St. West - 8th Floor Toronto, Ontario, Canada M5H 2C9 Tel: 416-369-0111 x344 Fax: 416-369-9599 www.geosoft.com
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Hi Thomas,

We have the mysql monitoring working since yesterday and yes, this was painfull to set up for us too ;-)

There is a good reference "How to" (howtograph.html) in the help dir. of your Hobbit installation.


Here below the necessary configuration steps using snapshot of 31 mai.

1. Modify bb-mysqlstat.sh ------------------------- The status $MYSQLADMIN returned by the original script is not suitable for the NCV module. You have to modify it to return Name:value pairs each on a single line. After extracting the values from $MYSQLADMIN (awk), we send this to the Hobbit server:

    $BB $BBDISP "status $MACHINE.$TEST $COLOR `date` - $STATUS
$UPTIME
$THREADS
$QUESTIONS
$SLOWQUERIES
$OPENS
$FLUSHTABLES
$OPENTABLES
$QUERIESPERSECONDAVG
"

2. Get clientlaunch (hobbitlaunch if your on the server) to run the script
---------------------------------------------------------------------------
[mysql]
	ENVFILE $HOBBITCLIENTHOME/etc/hobbitclient.cfg
	CMD $HOBBITCLIENTHOME/ext/bb-mysqlstat.sh
	LOGFILE $HOBBITCLIENTHOME/logs/bb-bb-mysqlstat.log
	INTERVAL 5m


3. Check that the script data arrives in Hobbit
------------------------------------------------
After a few minutes, a mysql column should appear on your Hobbit view of this host.

4. Arrange for the data to be collected into an RRD file -------------------------------------------------------- Modify the TEST2RRD for mysql and set the RRD datatype for the NCV module used for mysql in the NCV_mysql variable.

TEST2RRD="cpu=la,disk,<...lots more stuff...>,hobbitd,mysql=ncv
NCV_mysql="*:GAUGE"

5. Check that the RRD collects data ----------------------------------- You can use "rrdtool dump ~hobbit/data/rrd/HOSTNAME/mysql.rrd" or "rrdtool fetch ~hobbit/data/rrd/HOSTANME/mysql.rrd AVERAGE" to see what collected.

$ rrdtool fetch /soft/pub/BB/hobbit/data/rrd/deca/mysql.rrd AVERAGE Uptime Threads Questions Slowqueries Opens Flushtables Opentables Queriespersecondavg

1149067800: NaN NaN NaN NaN NaN NaN NaN NaN ... ... 1149153300: 1.7361796133e+06 1.2386666667e+01 1.3905225373e+07 2.7000000000e+01 8.3400000000e+02 1.0000000000e+00 1.2100000000e+02 8.0089200000e+00 1149153600: 1.7364796000e+06 1.2200000000e+01 1.3911530100e+07 2.7000000000e+01 8.3400000000e+02 1.0000000000e+00 1.2100000000e+02 8.0113000000e+00 1149153900: 1.7367795867e+06 1.3826666667e+01 1.3915204080e+07 2.7000000000e+01 8.3400000000e+02 1.0000000000e+00 1.2100000000e+02 8.0122933333e+00 1149154200: NaN NaN NaN NaN NaN NaN NaN NaN 1149154500: NaN NaN NaN NaN NaN NaN NaN NaN

6. Set up a graph definition ---------------------------- If your are interested in tracking the active threads, cut and paste the [mysqlthread] section of hobbitgraph.cfg and give it the [mysql] tag.

Refresh the status page in your browser, and the graph should show up.

7. Add the graph to the collection of graphs on the trends column ----------------------------------------------------------------- If you want the graph included with the other graphs on the trends column, you must add it to the GRAPHS setting in the ~hobbit/server/etc/hobbitserver.cfg file.

	GRAPHS="la,disk,<... lots more ...>,bbproxy,hobbitd,mysql"

Save the file, and when you click on the trends column you should see the mysql graph at the bottom of the page.

8 Optional: add more mysql graphs to the trends column ------------------------------------------------------- In bb-hosts, you can set TRENDS for displaying -here beside mysql- other mysql-graphs defined in hobbitgraph.cfg.

Example definitions in hobbitgraph.cfg:

[mysqlslow]
	DEF:slow=mysql.rrd:Slowqueries:AVERAGE
	TITLE MySQL Slow Queries
	YAXIS #
	LINE2:slow#FF0000:Slow Queries
	GPRINT:slow:LAST: \: %5.1lf (cur)
	GPRINT:slow:MAX: \: %5.1lf (max)
	GPRINT:slow:MIN: \: %5.1lf (min)
	GPRINT:slow:AVERAGE: \: %5.1lf (avg)\n
[mysqlqueries]
	DEF:quer=mysql.rrd:Queriespersecondavg:AVERAGE
	TITLE MySQL Queries Per Second Average
	YAXIS #
	LINE2:quer#0000FF:Queries Per Second Average
	GPRINT:quer:LAST: \: %5.1lf (cur)
	GPRINT:quer:MAX: \: %5.1lf (max)
	GPRINT:quer:MIN: \: %5.1lf (min)
	GPRINT:quer:AVERAGE: \: %5.1lf (avg)\n


Example bb-hosts entry:

1.2.3.4  HOSTNAME       # TRENDS:*,mysql:mysql|mysqlslow|mysqlqueries


Hope this helps.


Dominique
UNIL - University of Lausanne

References:
- Re: [hobbit] mysql monitor
  - From: thomas . seglard . enata

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