[rrd-users] Re: System Time Changed Corrupting Databases (fwd)

[Shipley, Rob]

It may help to check out a script that can do this. You need to "rrdtool
dump" the rrd database you want to restore and the corrupt database that has
historical data. Then do a restore to the temp xml dump file. If it isn't
working for you, let me know. Here is what to look at:
http://www.geocrawler.com/mail/msg.php3?msg_id=7780536&list=1089

Sample Steps:
1. rrdtool dump corrupt.rrd >corrupt.xml
2. rrdtool dump restore.rrd >restore.xml
3. perl <script-name>.pl restore.xml corrupt.xml tmp.xml
4. rrdtool restore tmp.xml restoredvalues.rrd 
5. Return to step 1 if you have more data to restore

-----Original Message-----
From: Brian E. Seppanen [mailto:seppy at chartermi.net]
Sent: Friday, September 27, 2002 9:21 AM
To: rrd-users
Subject: [rrd-users] System Time Changed Corrupting Databases (fwd)



Hi Folks:

A couple of days ago, one of the admin's where I work inadvertently 
changed the system time and date (in some cases to 2015, 2008, 2003).   
Needless to say, I have a whole load of rrd databases that became 
corrupted.   I restored a mess of them from tape, but a couple for other 
users slipped through the cracks is there any way to rescue the data from 
them.

Is there a way to splice data from two seperate databases into a good 
third one.   

I'll be very pleasently surprised if there is, but it all strikes me as a 
very complicated undertaking.

Any suggestions would be appreciated.

Thank you.

Brian Seppanen
seppy at chartermi.net
906-228-4226 ext 23



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