I think in the case that you interrupt the fetcher, you'll have the problem 
that URLs that where scheduled to be fetched on the interrupted cycle will 
never be fetched (because of NUTCH-1842).

        Yossi.

> -----Original Message-----
> From: Markus Jelsma <markus.jel...@openindex.io>
> Sent: 19 November 2018 14:52
> To: user@nutch.apache.org
> Subject: RE: RE: unexpected Nutch crawl interruption
> 
> Hello Hany,
> 
> That depends. If you interrupt the fetcher, the segment being fetched can be
> thrown away. But if you interrupt updatedb, you can remove the temp directory
> and must get rid of the lock file. The latter is also true if you interrupt 
> the
> generator.
> 
> Regards,
> Markus
> 
> 
> 
> -----Original message-----
> > From:hany.n...@hsbc.com <hany.n...@hsbc.com>
> > Sent: Monday 19th November 2018 13:30
> > To: user@nutch.apache.org
> > Subject: RE: RE: unexpected Nutch crawl interruption
> >
> > This means there is nothing called corrupted db by any mean?
> >
> >
> > Kind regards,
> > Hany Shehata
> > Solutions Architect, Marketing and Communications IT Corporate
> > Functions | HSBC Operations, Services and Technology (HOST) ul.
> > Kapelanka 42A, 30-347 Kraków, Poland
> >
> _________________________________________________________________
> _
> >
> > Tie line: 7148 7689 4698
> > External: +48 123 42 0698
> > Mobile: +48 723 680 278
> > E-mail: hany.n...@hsbc.com
> >
> _________________________________________________________________
> _
> > Protect our environment - please only print this if you have to!
> >
> >
> > -----Original Message-----
> > From: Semyon Semyonov [mailto:semyon.semyo...@mail.com]
> > Sent: Monday, November 19, 2018 12:59 PM
> > To: user@nutch.apache.org
> > Subject: Re: RE: unexpected Nutch crawl interruption
> >
> > From the most recent updated crawldb.
> >
> >
> > Sent: Monday, November 19, 2018 at 12:35 PM
> > From: hany.n...@hsbc.com
> > To: "user@nutch.apache.org" <user@nutch.apache.org>
> > Subject: RE: unexpected Nutch crawl interruption Hello Semyon,
> >
> > Does it means that if I re-run crawl command it will continue from where it 
> > has
> been stopped from the previous run?
> >
> > Kind regards,
> > Hany Shehata
> > Solutions Architect, Marketing and Communications IT Corporate
> > Functions | HSBC Operations, Services and Technology (HOST) ul.
> > Kapelanka 42A, 30-347 Kraków, Poland
> >
> _________________________________________________________________
> _
> >
> > Tie line: 7148 7689 4698
> > External: +48 123 42 0698
> > Mobile: +48 723 680 278
> > E-mail: hany.n...@hsbc.com
> >
> _________________________________________________________________
> _
> > Protect our environment - please only print this if you have to!
> >
> >
> > -----Original Message-----
> > From: Semyon Semyonov [mailto:semyon.semyo...@mail.com]
> > Sent: Monday, November 19, 2018 12:06 PM
> > To: user@nutch.apache.org
> > Subject: Re: unexpected Nutch crawl interruption
> >
> > Hi Hany,
> >
> > If you open the script code you will reach that line:
> >
> > # main loop : rounds of generate - fetch - parse - update for ((a=1; ; 
> > a++)) with
> number of break conditions.
> >
> > For each iteration it calls n-independent map jobs.
> > If it breaks it stops.
> > You should finish the loop either with manual nutch commands, or start with
> the new call of crawl script using the past iteration crawldb.
> > Semyon.
> >
> >
> >
> > Sent: Monday, November 19, 2018 at 11:41 AM
> > From: hany.n...@hsbc.com
> > To: "user@nutch.apache.org" <user@nutch.apache.org>
> > Subject: unexpected Nutch crawl interruption Hello,
> >
> > What will happen if bin/crawl command is forced to be stopped by any
> reason? Server restart....
> >
> > Kind regards,
> > Hany Shehata
> > Solutions Architect, Marketing and Communications IT Corporate
> > Functions | HSBC Operations, Services and Technology (HOST) ul.
> > Kapelanka 42A, 30-347 Kraków, Poland
> >
> _________________________________________________________________
> _
> >
> > Tie line: 7148 7689 4698
> > External: +48 123 42 0698
> > Mobile: +48 723 680 278
> > E-mail: hany.n...@hsbc.com<mailto:hany.n...@hsbc.com>
> >
> _________________________________________________________________
> _
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> >
> >
> >
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