Help needed in schema and flow of my DB

I am dealing with a large scale of data and the senario is that.
i am getting data from stream , i have developed an aplication called AClient (in C++) which is getting data from stream and putting that data live in my db table called live using ODBC (previously i was using Pro C but i didnot find good help on that for new versions), this data insertion is like 2000 records per min, each record is approx. 200k.
As this data is very critical so we can't afford to miss this data.Data is automatically getting commit on each insertion, so the I/O operations bar is HIGH.
Now after saving this data live, we perform some actions using oracle JOBs,
I1. One job is used to fetch approx. 200,000 from table Live, merge 5-6 records into one record after every 1 hour, and put these records in a table named COM.
I2. One jos is used to fetch approx. 200,000 from table Live other than those inserted in COM, and put them in another table INCOM.
I3. One job is to fetch all records preior to 6 hours, and put them in an archive table ARC, also delete them from Live.
Now to export this data in CSVs we are using some more Oracle JOBs.
E1. One job is to fetch last two hours data from COM table and export this data in CSV format after every 2 hours.
E2. One job is to fetch one day records from INCOM table and export this data in CSV format scheduled in night time , once for a day.
Now the problem is that i am facing performace issues, i have got a very good hardware with 32GB RAM , 1.5T harddisk and quard core processsors.
TOP issues are fetching data is too slow, and I/O operations shown in OEM preformace tab are too many.
Please guide me what should i do.
like using partition tables,
and/or use of BI tools, fetch using cubes & dimensions.
and/or use any special tunning related to memory or I/O.
and/or rescheduling the JOBs.
and/or perform analyze table to make fetch process faster.
ANY HELP.

I have worked on this system many times before.
Not the one you have written but others that could be described with the exact same words.
And each and every time the reason is that they don't scale and the performance is abysmal.
What you have done, in the design, is systematically violate every performance and scalability rule and all, seemingly, for a good reason.
The problem is that databases don't work that way.
If you can not risk losing data write a log file, just as Oracle writes its redo logs.
Then write one process that takes the raw input and generates the desired output.
I can already hear the protest about how this can not be done. I've heard those too over and over again. Yet, amazingly, there are
those of us out here that get paid to do so ... and we do so successfully.
So if you want to avoid hiring a high-priced consultant ... rethink the design.
PS: You do not need an ARC table at all. Ever. This is Oracle not a toy.

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Mary Featherstone
Envoyé depuis Courrier Windows
De : Sanjit_Das
Envoyé : vendredi 14 février 2014 22:15
À : MFeatherstone
Re: Help needed with header and upload onto business catalyst
created by Sanjit_Das in Help with using Adobe Muse CC - View the full discussion
Hi
Answering the questions :
- Have you checked the preview in Muse and also in other browsers ?
- Does the rectangle width issue happens when menu is active , or in any specific state , Try to change the menu with uniform spacing and then check.
- In design view the rectangle is set to 100% browser width ?
With publishing :
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- If it happens with other images as well , see if all the image names includes strange characters or spaces.
- Try again to publish
With e-mail from BC :
- Under preferences , please check the country selected.
- If you have previously created partner account in BC and selected country and language then it would follow that, please check that.
Thanks,
Sanjit
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Message was edited by: dotnetter

Ok, so I know what the issue is now...I just don't know enough to be able to resolve it!
it's the tempAuthors objects.
It's an NSMutableArray which is create on the line before the start of the WHILE loop.
Having looked through the debugger, I can see that each dictionary object is created (with different codes which I assume are memory addresses) so all is well there. However, on each iteration of the loop in the middle there is an IF...ELSE... statement which in the ELSE section is clearing all objects from the tempAuthors array and beginning to repopulate it again.
Looking at the containing dictionary objects in the debugger I can see that the tempAuthors object that each contains has the same code (again, I'm assuming this is a memory address) - so if I understand correctly, it's the same object...I assumed that when I created the dictionary using the dictionWithObject call that I would be passing in a copy of the object, but it's referencing back to the object which I then go on to change.
Assuming the above is correct, I've tried several "stabs in the dark" at fixing it.
I've tried relasing the tempAuthors object within the ELSE and initialising it again via an alloc...init - but this didn't work and again looking through the debugger it looks as though it was confused as to which object it was supposed to be using on the following iteration of the WHILE loop (it tried to access the released object).
Having read a little more about memory management can someone tell me if I'm correct in saying that the above is because the tempAuthors object is declare outside the scope of the WHILE loop yet I then try to re-instantiate it within the loop (does that make sense???).
Sorry for the long post...the more I can understand the process the less I can hopefully stop relying on others for help so much.
I am continuing to read up on memory management etc but just not there yet.
Regards
Wayne

Help needed in schema and flow of my DB

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