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From Desidero <>
Subject Re: Handling abrupt shutdown while indexing
Date Thu, 03 Oct 2013 13:30:36 GMT
I've never had to do that, but a quick Google search brought this up:

Another (possibly better and definitely safer) solution would be to log
your updates in a way that would allow you to reprocess them in sequence.
It's not a great idea to risk losing data in the event of a
catastrophic/abrupt system failure.
On Oct 3, 2013 7:40 AM, "Ramprakash Ramamoorthy" <>

> Team,
>          We have our app using lucene 4.1. Docs keep getting indexed and we
> close the index by 00.00 hrs every day and open a new one for the next
> calendar day, however in case of an abrupt shutdown/kill of the JVM, the
> app server crashes and the live indexes end up remaining without a
> segments.gen file, and with a write.lock file. Say the abrupt shut down
> happens by 23:55, all the documents indexed from 00:01 to 23:54 are lost.
> NRT searchers function well before the shutdown.
>          Is there anyway I can recover such indexes without a segments.gen?
> Or committing periodically (say one hour once or when 1000 docs indexed) is
> the only way? Or am I missing something very basic? Thanks in advance.
> --
> With Thanks and Regards,
> Ramprakash Ramamoorthy,
> Chennai, India.

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