May 2007 - Xymon - Xymon mailman web

small quirk on hpux with hobbit
by a.p.frehe＠tudelft.nl 29 May '07

29 May '07

Hi, I run hobbit 4.2.0 Great stuff. I only found out about hobbit a couple of months ago but it was just what I had been looking for. anyway. Just to lt you know I changed something in a ...hobbit/client/bin/ hobbitclient-hp-ux.sh script to get rid of the error I get on the procs page of a hpux machine. It would always blink amber with an exclamation sign and say: Expected string COMMAND not found in ps output header This regards only my HPUX 11.00 computer and not my other HPUX 11.11 (11i) computers. What I changed to fix this is remove the "x" in line 46 so that it reads ... ps -A -o pid,ppid .... instead of ... ps -Ax -o pid,ppid .... Hope it helps Regards Antoon Frehe Delft Univ. of Technology, Delft

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issue with drop content
by pkc_mls＠yahoo.fr 29 May '07

29 May '07

Hi all, As I tried to drop the content column for one host (because the sha for the dynamic content changes too frequently), I saw that the data/hist/host.http kept the content lines, so the purple appears even if the bb drop command has been executed twice. I simply did a grep -v on the host.http file, and the purple disappears.

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Hobbit Status After hobbit-client restarted
by tlabelsd＠telkom.co.za 29 May '07

29 May '07

Hi All, I have just used the init script to stop and start hobbit-client on RHEL 4 i.e /etc/init.d/hobbit-client stop and then start and now the status on the web interface is purple, when using /usr/lib/hobbit/client/runclient.sh status it appears not running, I then used /usr/lib/hobbit/client/runclient.sh start then the problem was solved, is this a good idea of overcoming this problem, What should I do to solve this problem Regards -- Sello Tlabela <tlabelsd at telkom.co.za> Telkom SA ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ This e-mail and its contents are subject to the Telkom SA Limited e-mail legal notice available at http://www.telkom.co.za/TelkomEMailLegalNotice.PDF ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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Dependancy question
by tdiehl＠rogueind.com 28 May '07

28 May '07

Hi, I am having a problem getting dependencies working. According to the bb-hosts man page I should be able to do something like the following: depends=(conn:cr-sw-510-01/conn) If I understand the man page correctly the above should say that for the current host the connection service depends on being able to connect to the cr-sw-510-01. IOW we should be able to ping the cr-sw-510-01 device. The problem is that if I do the above, I still get the connections turning red and as a result all of the alerts that go with it. Can someone please tell me what I am missing? Regards, -- Tom Diehl tdiehl at rogueind.com Spamtrap address mtd123 at rogueind.com

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Alert via my own test script failed
by casedj＠21cn.com 26 May '07

26 May '07

Following scripts were added in hobbit-alerts.cfg: HOST=linux_1 SERVICE=disk SCRIPT echo "my_linux disk went to warning state" |smbclient -M cici SCRIPT echo "disk reached warning state" |write hobbit The color of disk changed while state reached warning level, but scripts had no effect. Or is syntax of the script wrong? how to write my own alert script? Thanks very much. Case

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Tony Radca/GLDC/MAYCO is out of the office.
by Tony.Radca＠fds.com 26 May '07

26 May '07

I will be out of the office starting 05/26/2007 and will not return until 06/01/2007. For immediate needs please contact : John Howard x3449 (POS/WR Lvl4)

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HA Hobbit / Load Balanced Hobbit / Failover Hobbit
by jonescr＠cisco.com 25 May '07

25 May '07

I've been thinking of implementing a fault tolerant Hobbit setup. I've got a few ideas on how to do it, so I thought I would throw them out to see what Henrik and anyone else thinks...for all I know someone already has it setup*. Setup 1 - Using bbproxy: Clients configured to send to DNS name "hobbit.mydomain.com" HOST-A, aka "hobbit.mydomain.com" * Running bbproxy, configured to send all received data to HOST-B (hobbit1) and HOST-C (hobbit2) * Apache virtual host redirects HTTP requests for hobbit.mydomain.com to HOST-B (hobbit1) HOST-B aka "hobbit1". This is the main Hobbit server. * Configured to do network tests * Configured to send alerts * Configured to save checkpoint file every 5 minutes (maybe even every minute) * Also monitors the bbproxy host and alerts if it goes down * Also monitors HOST-C (hobbit2) and alerts if it goes down * Web interface accessible via a DNS virtual host (monitor.mydomain.com/hobbit) HOST-C aka "hobbit2". This is the secondary/standby server. * Only does network tests and alerts of HOST-B * Rsync process runs every minute and mirrors HOST-B config files (bb-hosts, hobbit-alerts, the checkpoint file, etc) to a failover directory. * Failover is accomplished via SCRIPT directive in hobbit-alerts.cfg * When HOST-B goes down, an alert is sent, and also an addition SCRIPT directive kicks off a script which will: 1. Swap out HOST-C's config files (bb-hosts, hobbit-alerts.cfg, checkpoint file, etc) with the saved mirrored failover ones 2. Restart Hobbit to load the new checkpoint data 3. Update the apache config on HOST-A so that the web interface now redirects to HOST-C instead of HOST-B, and rehup apache to activate the new config. 4. Host-C is now performing everything that HOST-B was. It is doing the same network tests, has the same alert setup, and is receiving the same data from bbproxy. Anyone who goes to http://monitor.mydomain.com/hobbit will correctly be directed to the secondary server. Thoughts: This is an automated failover, but failing back to the primary server when it comes back up is not so easily done. Eh, I suppose with another SCRIPT directive it could be done, but usually when a host fails its not ready to return to full service the first time it boots back up, so the failback is probably best done manually. Failback would include rsyncing the data directory and checkpoint file back to the primary host, and reverting HOST-C and HOST-A (apache) back to their pre-fail configurations. I suppose this could be done without bb-proxy, and just have the secondary server constantly rsync the first server (data and etc directory), but then you would lose the ability to have the SCRIPT directive do the failover stuff for you (hmm or maybe not, if it was in HOST-B's config, it would never trigger, so should be safe to mirror that config). It's still nice to use bbproxy though, because it rate-limits the incoming messages, as well as combines them to combo messages when it is able, which reduces the load on the Hobbit server. This only provides failover, no load balancing. This could change if Henrik ever does the code changes to allow distributing worker modules. * I discovered while searching that someone has created a patch(es) for rrdtool that allows it to store and retrieve data from MySQL or Postgres instead of/in addition to RRD files. This is very interesting as it would be transparent to Hobbit, and MySQL has excellent load balancing and replication built-in. The author claimed that he had "re-written Big Brother" using these rrdtool patches to create a load balanced fault tolerant monitoring cluster. I wonder if he hacked it so that all the configuration was stored in mysql as well...I guess no matter as I got the impression that he didn't want to share his work (except for the rrdtool patches) :-)

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Graph per network interface / disable graphs
by giovanni＠redix.com.br 25 May '07

25 May '07

Hi everyone, I need to create independent graphs for the network interfaces, seems to be very easy, just creating different "[graphs]" in hobbitgraphs.cgi, anyone have any other implementation ? Also, its possible to disable manually any graph per host ? Or just configure which graphs i want for a selected host ? Thank you all! Cheers -- Giovanni M. Frainer

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OS Compatibility
by rgordonjr＠gmail.com 25 May '07

25 May '07

Hello all - A while back there was a thread (that I am not able to locate) regarding what OS's people have gotten either the client or the server to operate on. My management is looking for the list as they are thinking of installing it on some of thier newer systems... So far I know that the Hobbit client runs on the following: Solaris 10 (sparc) Redhat CentOS Windows (with BBWin) Mac OSX (Darwin).. What other operating systems have you all been able to get it running on? (and are they 32 or 64 bit...) Thanks! -- --==[ Bob Gordon ]==--

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Acknowledge not working
by genesys2001uk＠gmail.com 25 May '07

25 May '07

Hi, I'm having an issue with acks not working properly. The status page shows that a test is acknowledged, but I continue to be paged for the test. Any clues, or has anyone else seen this problem before? thanks, Doug

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