[MonetDB-users] MonetDB XQuery Module Crash

Stefan Manegold Stefan.Manegold at cwi.nl
Wed Jul 12 09:47:13 CEST 2006


Wouter,

Thank you very much!
Well done!

... both solving this one and submitting the bug report:
http://sourceforge.net/tracker/index.php?func=detail&aid=1520735&group_id=56967&atid=482468

Stefan


On Tue, Jul 11, 2006 at 09:39:35PM +0200, Wouter Alink wrote:
> I'm glad I could help out. 
> 
> I have reported it as a bug, although I don't really know what exactly
> causes the problem. I haven't found a way to reproduce the bug. If you can
> reproduce it, please let us know.
> 
> Can you perhaps remember if you at any time after you installed MonetDB and
> before the error appeared, bailed out (pressed Ctrl-C or something like
> that: "killall Mserver", a power failure...) during the execution of a
> query? and in particular during the 100 or 200 MB query?
> 
> Sorry for bothering you with more questions again, but the bug does not pop
> up often, so any input is welcome. 
> 
> Greetings,
> Wouter
> 
> 
> -----Original Message-----
> From: monetdb-users-bounces at lists.sourceforge.net
> [mailto:monetdb-users-bounces at lists.sourceforge.net] On Behalf Of Michael
> Schmidt
> Sent: dinsdag 11 juli 2006 20:44
> To: Wouter Alink
> Cc: Monetdb-users at lists.sourceforge.net
> Subject: Re: [MonetDB-users] MonetDB XQuery Module Crash
> 
> 
> Hi all,
> 
> > I read the discussion, and I might have experienced the same kind of 
> > problem before. I think there is some problem with the naming (when a 
> > document is previously shredded with the same name as a 'cached' 
> > document). At the time I experienced the problem I couldn't figure out 
> > what the exact problem was, but removing the dbfarm worked for me:
> > 
> > So perhaps you could try to:
> > - stop Mserver
> > - completely remove the dbfarm-folder (defaultpath is
> > "$PREFIX/var/MonetDB/dbfarm") (hopefully you don't have important XML
> > documents stored in the database ;)
> > - start Mserver
> > - and then run the large query (without running any other queries first)?
> 
> Thank you very much, everything works fine now! Just removed all dbfarm
> subdirectories and the error message disappeared. And no, there were no
> important XML documents stored in the database, only some XMark generated
> streams ;-)!
> 
> Nevertheless: I never shredded any document before encountering the problem
> the first time. Before I /only/ used direct loading from the query. I just
> tried shredding to solve the problem...
> 
> Hope this helps to locate the bug!
> 
> Cheers
> Michael
> _____________________________________________________________________
> Der WEB.DE SmartSurfer hilft bis zu 70% Ihrer Onlinekosten zu sparen!
> http://smartsurfer.web.de/?mc=100071&distributionid=000000000071
> 
> 
> 
> -------------------------------------------------------------------------
> Using Tomcat but need to do more? Need to support web services, security?
> Get stuff done quickly with pre-integrated technology to make your job
> easier Download IBM WebSphere Application Server v.1.0.1 based on Apache
> Geronimo
> http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642
> _______________________________________________
> MonetDB-users mailing list
> MonetDB-users at lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/monetdb-users
> 
> 
> 
> -------------------------------------------------------------------------
> Using Tomcat but need to do more? Need to support web services, security?
> Get stuff done quickly with pre-integrated technology to make your job easier
> Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo
> http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642
> _______________________________________________
> MonetDB-users mailing list
> MonetDB-users at lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/monetdb-users

-- 
| Dr. Stefan Manegold | mailto:Stefan.Manegold at cwi.nl |
| CWI,  P.O.Box 94079 | http://www.cwi.nl/~manegold/  |
| 1090 GB Amsterdam   | Tel.: +31 (20) 592-4212       |
| The Netherlands     | Fax : +31 (20) 592-4312       |




More information about the users-list mailing list