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From: =?UTF-8?Q?Julien_=C3=89LIE?= <iulius@nom-de-mon-site.com.invalid>
Newsgroups: news.software.nntp
Subject: Re: power loss while receiving news
Date: Sun, 21 Apr 2024 13:58:42 +0200
Organization: Groupes francophones par TrigoFACILE
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Hi Nigel,

>> I'm in a situation where I've been receiving an innxmit feed to
>> populate a new news server.
>>
>> Unfortunately, after 992GB, we had a power outage and my UPS died
>> without a clean shutdown.
>>
>> Now, I'm paranoid my index is corrupt and not sure what to do about
>> it.
>>
>> I'm using cfs on this new system.
>>
> 
> To add more detail. I am definitely missing some articles.
> 
> $ grephistory '<q34v5519vru4fco5d14eradn3iksal3ihr@4ax.com>'|sm
> sm: could not retrieve @03024359434E475331000F8053BA00000001@
> 
> 
> I have to got back 675 lines in the logfile before I am able to
> retrieve an article.

I would then just suggest to run again innxmit on the sending server for 
these 675 articles.
Yet, the number of missing articles seems high.  The CNFS headers are 
updated every 25 articles by default.  Did you change the cycbuffupdate 
setting in cycbuff.conf?  (Or do you have lots of cyclic buffers, as the 
refresh is related to each buffer, separately?)

grephistory gets information from the history file which is flushed 
every 10 articles by default (icdsynccount setting in inn.conf).

Overview data is usually written less frequently on disk; it depends on 
the overview storage method you are using (after each article arrival 
for tradindexed, according to the transrowlimit and transtimelimit 
settings in ovsqlite.conf for ovsqlite, the txn_nosync setting in 
ovdb.conf for ovdb, and the ovflushcount setting in inn.conf for 
buffindexed).

-- 
Julien ÉLIE

« Les ordinateurs dans le futur ne pèseront peut-être pas plus de 1,5
   tonne. » (Popular Mechanics, 1949)