Hi,

This doesn't look like any UUID I ever encountered before:

7000009565bc370.f5330048ffa80212

I will ask the DBA if there is any way of generating those things with a stored 
procedure, but I don't expect a positive answer, to be quite honest.

Greetings,
Till Helge


-----Ursprüngliche Nachricht-----
Von: Russ Michaels [mailto:r...@michaels.me.uk] 
Gesendet: Mittwoch, 30. Januar 2013 11:36
An: cf-talk
Betreff: Re: AW: Severe memory issue


They will likely be a uuid, and most databases can also generate these natively 
too.

Regards
Russ Michaels
www.michaels.me.uk
www.cfmldeveloper.com - Free CFML hosting for developers www.cfsearch.com - CF 
search engine On Jan 30, 2013 10:34 AM, "Helwig, Till Helge" 
<till.hel...@saxsys.de>
wrote:

>
> Hi,
>
> I would love to do that but unfortunately that's impossible. The guy 
> who designed the database layout all those years ago came up with the 
> idiotic idea of using unique OIDs (strings essentially) instead of IDs 
> in every table...and those OIDs have to be generated by some weird 
> class offered only by the framework the application has been 
> constructed with. Moving data about would be way better with INSERT 
> INTO ... SELECT ... or something, but sadly that's out of the question.
>
> Greetings,
> Till Helge
>
> -----Ursprüngliche Nachricht-----
> Von: Russ Michaels [mailto:r...@michaels.me.uk]
> Gesendet: Mittwoch, 30. Januar 2013 11:31
> An: cf-talk
> Betreff: Re: Severe memory issue
>
>
> Have you tried moving this job off to th db server and taking cf out 
> of the loop.
> Use stored procs etc.
>
> Regards
> Russ Michaels
> www.michaels.me.uk
> www.cfmldeveloper.com - Free CFML hosting for developers 
> www.cfsearch.com- CF search engine On Jan 30, 2013 10:27 AM, "Helwig, 
> Till Helge" < till.hel...@saxsys.de>
> wrote:
>
> >
> > Hi,
> >
> > I'm working on a very old and very badly coded CF application at the 
> > moment. It contains servertasks that do a lot of batch processing 
> > where huge data sets are queried from a database, processed and the 
> > results written back to the DB. Unfortunately by now the jobs have 
> > become so large that we frequently get heap space errors. I'm trying 
> > to figure out why the process takes up so much memory and I've 
> > reached a point where I just don't know what to look for anymore. 
> > When looking at the memory monitor it looks to me like in every loop 
> > iteration he accumulated about 100 MB of data, procceses it and 
> > throws it away, but not entirely. A small piece stays in the memory 
> > every time and in the
> end it clutters up all the heap space.
> >
> > What I already did:
> >
> > -          Adding "var" to local variables
> >
> > -          Replacing literals in queries with cfqueryparams
> >
> > -          Replacing StructNew() at the beginning of loops with
> > StructClear()
> >
> > -          Replacing query-loops with index-loops
> >
> > I also started looking at dumps of the Java heap shortly before the 
> > process crashes, but I'm not really getting any wiser from that. I 
> > see that there are millions of objects in the memory and many of 
> > them are LoopTags and QueryTags, but other than that I have no idea 
> > what to make
> of it.
> >
> > I've read that placing the code of the loop within its own thread 
> > might help, but that's impossible because our task already runs in 
> > its own thread and apparently CF can't spawn threads from within threads.
> >
> > If you have any ideas for me where to look for memory leaks, what 
> > else to try or an explanation for what might cause the problem, I 
> > would be really really thankful!
> >
> > Greetings,
> > Till Helge
> >
> >
> >
>
>
>
> 



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