Is there a way to spot these data inconsistencies in Data.fs and remove
or fix them ?
From: Andreas Jung [mailto:[EMAIL PROTECTED]
Sent: Tuesday, May 06, 2008 12:31 PM
To: Sinang, Danny; email@example.com
Subject: Re: [Zope] Turning back system clock
--On 6. Mai 2008 10:28:29 +0800 "Sinang, Danny" <[EMAIL PROTECTED]>
> Dear All,
> The system clock of our Zope 2.7 machine accidentally got set to 2009.
> We noticed this mistake 6 hours later and we decided to set back the
> clock to 2008.
> How does this affect the integrity of Data.fs ?
>> From our observation :
> 1. Session write errors suddenly began to appear
> 2. Data.fs.index won't grow anymore and its timestamp remained at the
> time we set back the clock
> 3. Packing the database (which was 8 GB at the time) took too long
> without any signs of any Data.fs.pack file in the var folder. We
> decided to restart Zope after a few minutes.
> 4. There seem to be some catalog indexing problems as our catalog
> searches on a certain field doesn't work as reliably as it did before.
> We tried reindexing the field and even the catalog, but it timed out
> on us (lots of objects in the database).
> Has anyone here had any similar experiences ? How do I go about fixing
> this ?
Turning the clock back is known to result in data inconsistencies.
It is is best-practice having NTP installed on all Zope machines.
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