[Linux-HA] updating cib.xml?

[Steve Wray]

Michael Alger wrote:
> On Fri, Jul 04, 2008 at 10:14:57AM +1200, Steve Wray wrote:
>> Having made a copy of the cib.xml file and modified that copy, I
>> had thought that the way to make it live was to run:
>>
>> # cibadmin  -R -x cib.xml
>> Call cib_replace failed (-45): Update was older than existing configuration
>> <null>
>>
>> however, as you can see, this doesn't work.
>>
>> Its odd because I don't see any data in the update which tells
>> cibadmin anything about how old it is. I tried touch on the new
>> cib.xml file but this changed nothing.
> 
> I doubt it uses the timestamp of the file you're using in any way,
> since you can also make updates by directly passing cibadmin an XML
> string.
> 
> I think the "epoch" and/or the "num_updates" attributes of the <cib>
> element might indicate its age.

Yeah thats what I figured so I removed them in my modified cib.xml file, 
still didn't work


> Are you copying the cib.xml from the file system, or obtaining it
> with cibadmin -Q?

ah yes... I did copy the cib.xml from the filesystem and modify that, 
then try to feed it back into cibadmin...

I'll try getting it from cibadmin -Q next time.




>> Is this not the right way to replace the entire existing cib.xml
>> with the modified version?
> 
> I've never updated the whole CIB, only parts of it, so I'm not
> entirely sure. Offhand I'd try modifying the <cib> element to have
> no attributes at all, but that may be a bad idea if you're using -R.
> 
>> This page: http://www.linux-ha.org/v2/AdminTools/cibadmin
>>
>> only gives examples with replacing specific things; I want to
>> replace the entire file.
> 
> Have you seen this PDF:
> 
> http://clusterlabs.org/mw/Image:Configuration_Explained.pdf
> (link is to a page about the PDF, not the PDF itself)
> 
> I've only just started reading it, but it seems like it will be
> pretty informative. I particularly liked the part about the GUI.
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