RE: [hobbit] Migrate hobbit data

["Everett, Vernon" <Vernon.Everett (at) woodside.com.au>]

You are a glutton for punishment, aren't you?
 
You have to use rrdtool and export the data from every .rrd file into an
XML file.
Then copy the XML dumps over to the new server, and import them back
into .rrd files of the same name.
 
The issue has to do with Solaris/Sparc being big-endian and Linux/Intel
is little-endian, and how the data is stored on different architecture.
Read more here http://en.wikipedia.org/wiki/Big-endian (If I try and
explain, I will probably stuff it up. It's late here)
 
You can read more about the migration here.
http://osdir.com/ml/network.smokeping.user/2003-06/msg00019.html
You can script it to make it easier, but your migration will take a LOT
longer.
 
Cheers
     V

 
________________________________

From: Roberts, James [mailto:James.Roberts (at) hants.gov.uk] 
Sent: Tuesday, 5 August 2008 8:54 PM
To: hobbit (at) hswn.dk
Subject: RE: [hobbit] Migrate hobbit data


ok sledgehammer at the ready....what's the work around?
 

________________________________

From: Everett, Vernon [mailto:Vernon.Everett (at) woodside.com.au] 
Sent: 05 August 2008 13:36
To: hobbit (at) hswn.dk
Subject: RE: [hobbit] Migrate hobbit data


Yes, but with a caveat.
If you change architecture, your rrd files might not survive.
If you go like for like e.g. x86 to x86, you should be fine.
However, you will have problems if you migrate from X86 to Sparc, or
vice-versa.
There is a workaround, but I would rather have my head set on fire, and
put out with a sledghammer.
 
If you are going to the same OS, and the same hardware, then it's full
steam ahead, and f*** the icebergs.
Make sure your new server has all the prerequisites for Hobbit
installed.
Install Hobbit. Check it starts, then shut it down.
Now simply shut down the old Hobbit installation, copy the data and
config files, and start up the new one.
 
Your data will include ~/server/etc
And /wherever/you/put/hobbit/data
Don't forget any custom scripts in ~server/ext
 
Make sure the clients are pointing to the new server.
The easiest way is to change the IP address of the new server to look
like the old.
Failing that, change DNS or host lookup to point ot the new server.
 
You should then be back in business.
 
 
 

________________________________

From: T.J. Yang [mailto:tj_yang (at) hotmail.com] 
Sent: Tuesday, 5 August 2008 7:15 PM
To: hobbit (at) hswn.dk
Subject: Re: [hobbit] Migrate hobbit data


a very good entry for FAQ or HOWTO if it is not already in hobbitmon
wiki site.
http://en.wikibooks.org/wiki/System_Monitoring_with_Hobbit/Other_Docs 
 
 
tj

From: Roberts, James <mailto:James.Roberts (at) hants.gov.uk>  
Sent: Tuesday, August 05, 2008 6:00 AM
To: hobbit (at) hswn.dk 
Subject: [hobbit] Migrate hobbit data


I am planning to move my hobbit server install to a new server... 

If it possible to migrate all the data from the old install to the new
one? 



James Roberts 
IT Consultant - IT Services 
Hampshire County Council 
Room 415,Elizabeth II Court, The Castle, 
Winchester, Hants SO23 8US 
Internal HPSN: (200) 5037 
Tel: +44 (0)1962 845037 
Fax: +44 (0)1962 847434 
james.roberts (at) hants.gov.uk 
Web: WWW.Hants.Gov.UK <file://WWW.Hants.Gov.UK>  

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