[ZODB-Dev] Restoring from repozo and reusing an index file?

[Paul Winkler]

On Fri, Jun 11, 2010 at 10:18 AM, Chris Withers <chris at simplistix.co.uk>wrote:

> Paul Winkler wrote:
>
>> 3 should be pretty fast as its an incremental backup.
>> 4 may take a little while but iirc it's not too bad for this db -  maybe
>> 10 minutes.
>> Most of the downtime is caused by rebuilding the index which takes way
>>  longer (30 min?)
>>
>> So I had two questions:
>>
>> 1) would it be safe to copy the index file from the old host and just  use
>> that with the filestorage generated by repozo?
>>
>
> Almost certainly not.
>

OK, good to know, thanks.

>
>  2) should I maybe ditch repozo and just rsync everything?  That'd  replace
>> step 3 with a second call to rsync, and eliminate steps 4 and  6.  But I'm
>> not sure how fast it is at updating a big binary file.  I  think I'll do an
>> experiment today and report back on this option.
>>
>
> I suppose you could look at zeoraid.
>

Hadn't thought of that, will look at it, thanks!


> Have you tried just starting with an empty index file?
>

Yes - zeo takes ages to be usable while it builds the new index from
scratch.
That's the whole problem.

-- 
http://www.slinkp.com
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