[hobbit] big brother replacement
joe at tmsusa.com
Fri Nov 2 18:19:35 CET 2007
Yes, but keep in mind that's $64 octal.
Josh Luthman wrote:
> So I take it that Joe has to Paypal Henrik $64 now?
> Please let me, and everyone else of course, know how the failover
> script works on Hobbit. I'd be very interested in knowing the result
> to this!
> Thanks to all three of you!
> On 11/2/07, *Henrik Stoerner* <henrik at hswn.dk <mailto:henrik at hswn.dk>>
> Hi Joe,
> On Thu, Nov 01, 2007 at 03:20:12PM -0700, Sloan wrote:
> > So, the $64 question: Is there anything in hobbit, or on the
> > which will allow hobbit to serve as a drop-in replacement for bb,
> > including the failover capability?
> The BB "failover" script does two things: It makes the network tests
> run on the failover server if the primary BBNET server cannot be
> ping'ed; and it enables alerts being sent from the failover server
> if there is no connection from the failover server to the primary
> BBPAGER server.
> The network-test failover is fairly simple to do. I've attached two
> scripts here, both of which must run on the backup/standby/failover
> 1) failover.sh - goes in ~hobbit/server/ext/
> Add a section to hobbitlaunch.cfg with
> ENVFILE /usr/lib/hobbit/server/etc/hobbitserver.cfg
> NEEDS hobbitd
> CMD $BBHOME/ext/failover.sh 10.0.0.1 <http://10.0.0.1>
> hobbitnet.mydom.com <http://hobbitnet.mydom.com>
> "10.0.0.1 <http://10.0.0.1>" is the IP of your primary Hobbit
> "hobbitnet.mydom.com <http://hobbitnet.mydom.com>" is the
> hostname (in the bb-hosts file) of the
> primary network test machine.
> What this does is that it queries the primary Hobbit server for
> long ago the network tests were updated. If more than 7 minutes ago
> it deems the primary network test node to be DOWN, and flags
> this via
> the file $BBTMP/primarynetDOWN. If the network test update was
> than 7 minutes ago, it removes the file.
> This is then used by the other script, which replaces the CMD
> in the
> "[bbnet]" section in hobbitlaunch.cfg.
> 2) failovernet.sh - goes in ~hobbit/server/ext/
> When this runs to do the normal network tests, it will check
> for the
> presence of the $BBTMP/primarynetDOWN file. If this file exists, it
> picks up the IP of the primary Hobbit server from the file, and
> modifies the settings to report data to both the normal (local)
> Hobbit server, and to the primary server. If the file does not
> it will just run the network tests the normal way.
> So to run this, modify the [bbnet] section in hobbitlaunch.cfg and
> change the CMD setting to "$BBHOME/server/ext/failovernet.sh"
> The alert failover is different, because Hobbit doesn't have a
> BBPAGER server - alerts are sent from the same host that handles the
> Hobbit data collection and webpages. A solution to this has been
> implemented for the next release, where the alerting module can be
> distributed onto multiple servers, but only one of them will send
> at any given time.
> To unsubscribe from the hobbit list, send an e-mail to
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> Josh Luthman
> Office: 937-552-2340
> Direct: 937-552-2343
> 1100 Wayne St
> Suite 1337
> Troy, OH 45373
> Those who don't understand UNIX are condemned to reinvent it, poorly.
> --- Henry Spencer
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