September 2012 - Xymon - Xymon mailman web

Frequency of update of main system/page colors?
by betsy.schwartz＠gmail.com 06 Sep '12

06 Sep '12

Is there a way to make the main color of a page update more frequently? And to pick up test changes more quickly? We have a test that is run once a minute, but the page for the servers on which that test appears often takes a minute or two to change color. This is causing some frustration for our application test team. Is there a way I can speed this up? thanks Betsy

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Xymon tests - changing case?
by betsy.schwartz＠gmail.com 06 Sep '12

06 Sep '12

I've just been through a couple rounds of changing the *case* of tests. Xymon seems to have an odd mix of case-insensitivity and case-sensitivity. If you create a test named MYTEST and decide later that it should be MyTest - it is rather hard to change. I am not sure if all these steps are necessary but I ended up doing this : a) rename the test to some temporary name (to keep it alive) b) drop the test c) turn xymon off d) blow away all references to the test in files in data/hist e) name the test to the new case f) restart xymon g) drop the temporary test name (I started with all lower-case test names. Lost that fight. Plus, it's kinda nice that naming a test with a capital letter keeps it prominent on the left)

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rrd graph creation
by lebarber＠gmail.com 06 Sep '12

06 Sep '12

I have a new Xymon installation on 64 bit RHEL5.8. I cannot get the rrd graphs to display, I am seeing the following in my Apache error logs: [Wed Sep 05 16:19:52 2012] [error] [client 199.134.170.66] , referer: https://xymonback.edc.ds1.usda.gov/xymon-cgi/svcstatus.sh?HOST=bandobras&SE… [Wed Sep 05 16:19:52 2012] [error] [client 199.134.170.66] GLib-ERROR **: gmem.c:135: failed to allocate 4294967296 bytes, referer: https://xymonback.edc.ds1.usda.gov/xymon-cgi/svcstatus.sh?HOST=bandobras&SE… [Wed Sep 05 16:19:52 2012] [error] [client 199.134.170.66] aborting..., referer: https://xymonback.edc.ds1.usda.gov/xymon-cgi/svcstatus.sh?HOST=bandobras&SE… Anybody have any idea what may be causing this? Thanks, Larry Barber

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How to launch Xymon client on Ubuntu 12.04
by larry＠digonex.com 06 Sep '12

06 Sep '12

There is no documentation regarding starting/configuring the client. Does the client run continuously (like a daemon) or is it run on-demand from the server? How do I start the client as I currently show no xymon processes in ps after installation? I tried running /usr/lib/xymon/client/bin/xymonclient-linux.sh, but it doesn't do anything but send a bunch of output to std out. I notice there are no init.d startup scripts either. The only info I'm getting from a monitored host is: conn, info, and trends, no cpu or disk, etc. How do I enable the other services? The config help page states: "With the Xymon client running and reporting data into Xymon, you should see the cpu-, disk-, memory- and procs-columns appear" and does not mention what config files need to be edited to set host thresholds (/etc/localclient.cfg???) Larry Rosen, Linux Administrator Digonex Technologies, Inc. 150 West Market St. - Suite 728, Indianapolis, IN, 46204, U.S.A. Telephone: 317.638.4150 X206 | Mobile: 317.385.7876 | Fax: 317.638.4174

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xymongen issue
by ray.reuter＠gmail.com 04 Sep '12

04 Sep '12

I wanted to drop the memory column from the all nongreen page so I ran the command : ./xymongen --nongreen-ignorecolumns=memory This is the result 2012-08-16 16:19:55 Whoops ! Failed to send message (Connection failed) 2012-08-16 16:19:55 -> Could not connect to Xymon daemon at 10.1.73.154 <http://lists.xymon.com/mailman/listinfo/xymon>:1984 (Connection refused) 2012-08-16 16:19:55 -> Recipient '10.1.73.154', timeout 15 2012-08-16 16:19:55 -> 1st line: 'xymondboard fields=hostname,testname,color,flags,lastchange,logtime,validtime,acktime,disabletime,sender,cookie,line1,acklist' 2012-08-16 16:19:55 xymond status-board not available, code 5 2012-08-16 16:19:55 Failed to load current Xymon status, aborting page-update The issue is my xymon host is not 10.1.73.154 it is a completely different ip. Can anyone tell me how to change that ip? Not sure when it got in there somewhere and I have searched the entire file system for any file containing that entry and it returns nothing. Ray Reuter

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dbcheck.pl goes purple for all monitored databases?
by david.gore＠verizon.com 04 Sep '12

04 Sep '12

It helps to reread the documentation: timeoutdbconn=20s timeoudbtselect=1h timeoutcmdexec=2m Perhaps setting these to lower values will help. ~David From: Gore, David W (David) Sent: Tuesday, September 04, 2012 12:01 To: Xymon at xymon.com Subject: [Xymon] dbcheck.pl goes purple for all monitored databases? Before I look at spending a lot of time looking at the dbcheck.pl script, I thought I might ask if anyone else has seen the script hang when one of its queries does not return? Typically, dbcheck.pl -fast will hang on a query sent to a database that is having issues and so all the other monitored databases will eventually go purple as the dbcheck.pl is hung. Anybody else see the same issue and implement any solutions? I am going to look at the perl script and see if I can insert some timeout for any and all queries sent to the databases. ~David

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dbcheck.pl goes purple for all monitored databases?
by david.gore＠verizon.com 04 Sep '12

04 Sep '12

Before I look at spending a lot of time looking at the dbcheck.pl script, I thought I might ask if anyone else has seen the script hang when one of its queries does not return? Typically, dbcheck.pl -fast will hang on a query sent to a database that is having issues and so all the other monitored databases will eventually go purple as the dbcheck.pl is hung. Anybody else see the same issue and implement any solutions? I am going to look at the perl script and see if I can insert some timeout for any and all queries sent to the databases. ~David

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Question on df processing for xymonclient-linux.sh
by Mark.Deiss＠acs-inc.com 04 Sep '12

04 Sep '12

In looking df processing in the Linux Xymon client module in client/xymonclient-linux.sh: echo "[df]" EXCLUDES=`cat /proc/filesystems | grep nodev | awk '{print $2}' | xargs echo | sed -e 's! ! -x !g'` df -Pl -x iso9660 -x $EXCLUDES | sed -e '/^[^ ][^ ]*$/{ N s/[ ]*\n[ ]*/ / }' A bit concerned that the df line can have a dangling "-x" option if the EXCLUDES variable is not populated. With a dangling "-x", the df command will abort with a syntax error and the df status will probably end up with a green status with no rrd history being populated. Users would not be aware unless they specifically brought up the green disk display or were reviewing disk trends and noticing the gap. The EXCLUDES variable can become null if the xymon client account loses read access to /proc/filesystems, for some reason the Linux flavor quit using the nodev tag (maybe started using NODEV or Nodev after a patch update....) or the xymon client went onto an (older) Linux version that did not use the /proc system. Suggest a revision either using sed or awk to build the EXCLUDES variable and a modification of the df command to eliminate the dangling "-x" option EXCLUDES=`cat /proc/filesystems 2>/dev/null | awk ' $1 ~ /nodev/ { printf("-x %s ", $2) }'` Or EXCLUDES=`cat /proc/filesystems 2>/dev/null | sed -ne ' /nodev/{ s/nodev[ ]*/ -x / H } ${ x s/\n//g p }'` df -Pl -x iso9660 $EXCLUDES 2>/dev/null | sed -e '/^[^ ][^ ]*$/{ N s/[ ]*\n[ ]*/ / }' If the parsing for nondev entries in /proc/filesystems now blows up for whatever reason (EXCLUDES is null), the df command will be capturing more than is desired which I believe would be preferred over missing the important file systems. Would like to use "2>&1" rather than "2>/dev/null" in the df line except any captured error lines may cause some downstream havoc with the rrd database processing.

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monitor failed command line logins
by bb4＠richter-it.net 03 Sep '12

03 Sep '12

Hi XYmonians, since I do not want to reinvent the wheel I wanted to ask if somebody already has some script running that monitors specific log files on Unix/Linux for break in attempts and triggers an alert. Regards Torsten

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