[hobbit] big brother replacement

[Sloan]

Galen Johnson wrote:
> Aw...don't be cheap...go ahead and kick in the other $12...
>   

OK you win - $40 hex, as soon as I get paid.

Joe
> -----Original Message-----
> From: Sloan [mailto:joe at tmsusa.com] 
> Sent: Friday, November 02, 2007 1:20 PM
> To: hobbit at hswn.dk
> Subject: Re: [hobbit] big brother replacement
>
> Yes, but keep in mind that's $64 octal.
>
> Joe
>
> 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>>
>> wrote:
>>
>>     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
>>     horizon,
>>     > 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
>   
>>     server:
>>
>>     1) failover.sh - goes in ~hobbit/server/ext/
>>        Add a section to hobbitlaunch.cfg with
>>
>>           [failovercheck]
>>             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
>>     server,
>>        "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
>>     how
>>        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
>>     less
>>        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 $BBTMP/primarynetDOWN file. If this file
>>     
> exists, it
>   
>>        picks up the IP of the primary Hobbit server from the file, and
>>        modifies the settings to report data to both the normal (local)
>>        Hobbit server, and to the primary server. If the file does not
>>     exist,
>>        it will just run the network tests the normal way.
>>        So to run this, modify the [bbnet] section in hobbitlaunch.cfg
>>     
> and
>   
>>        change the CMD setting to "$BBHOME/server/ext/failovernet.sh"
>>
>>
>>     The alert failover is different, because Hobbit doesn't have a
>>     separate
>>     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
>>     alerts
>>     at any given time.
>>
>>
>>     Regards,
>>     Henrik
>>
>>
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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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