Hey Glenn!
Aren't those files simply underlying Unix directories?

----- Original Message ----- 
From: "Glenn Herbert" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Tuesday, November 30, 2004 11:29 AM
Subject: RE: [U2] How to setup MALLOCTRACING?


> At 10:44 AM 11/30/2004, you wrote:
> >I can understand an edit of a 30mb file failing but the delete is a bit
> >strange.
>
> Sounds like the file has a corruption; the DELETE code simply does a
READVU
> of the item on field 0 (the key) so it doesn't actually read the entire
> record into memory.   Maybe check the file for corruption.
>
>
> >-----Original Message-----
> >From: [EMAIL PROTECTED]
> >[mailto:[EMAIL PROTECTED] On Behalf Of Marco Manyevere
> >Sent: 30 November 2004 13:46
> >To: [EMAIL PROTECTED]
> >Subject: RE: [U2] How to setup MALLOCTRACING?
> >
> >The problem shows itself up in 2 ways:
> >
> >1) DELETEing or EDiting a record from &COMO&, &SAVEDLISTS&, or &HOLD&
> >thats more than 30Mb fails with 'Available memory exceeded'
> >
> >2) A number of reports on the system use the TEMP.LIST<-1> = TEMP.STR
> >construct and these are failing for big files. Unfortunately I cant
> >change this because I have no access to the source code and it would be
> >a major major exercise based on the size of the system.
>
> Every time you append (which is what -1 implies), you actually have to
make
> a copy of the existing string (TEMP.LIST), append to the copy, destroy the
> original, then rename the copy.  This means that you can have, at times,
> two full copies of the item in memory.  For big items, you will exhaust
> memory rather quickly.
>
> Memory in universe, for those systems that use the universe memory manager
> and NOT the system memory manager, is limited to the amount of memory
> dictated by the placement of the system disk shared memory segment (i
> believe its 0xacec----).  On most systems this will be well below actual
> physical memory.
>
> I don't believe that the uvconfig file for universe has a tunable to
change
> the shared memory location; I know for DSEngine we rewrote all the attach
> code so that we could easily relocate the segments as well as run multiple
> versions and copies of the engine on a single system.  In the past we had
> to actually rebuild universe with different  attach points for the
segments
> as they couldn't be adjusted in the field;  if you can't change the offset
> values in the uvconfig file, then the only recourse would be to get a new
> build from IBM with adjusted offset values, or don't have such large
items.
>
> Good luck!
>
> >
> >Regards, Marco.
> >
> >
> >
> >Adrian Matthews <[EMAIL PROTECTED]> wrote:
> >What are you running within Universe?
> >
> >Seems like quite a lot of memory to be using, none of our processes (on
> >Windows or Unix) ever go over 15mb of physical memory.
> >
> >-----Original Message-----
> >From: [EMAIL PROTECTED]
> >[mailto:[EMAIL PROTECTED] On Behalf Of Marco Manyevere
> >Sent: 30 November 2004 07:42
> >To: [EMAIL PROTECTED]
> >Subject: [U2] How to setup MALLOCTRACING?
> >
> >Hi Everyone,
> >
> >I'm still battling with the 'Available memory exceeded' problem on Sco
> >Unixware. I haven't been able to receive feedback from anyone on the
> >list running UV on Unixware on how they have configured their system and
> >how much memory they can be mallocated in one big chuck. I can only get
> >30Mb max before the memory exceeded error is thrown even though I have 8
> >Gig RAM and am the only user on the system. The system runs nothing else
> >but UV and all possible Unixware parameters must be optimised for UV.
> >
> >I want to turn on MALLOCTRACING to 1 in the hope that I will be able to
> >find out the exact nature of the failure. I have tried but then UV fails
> >to start with a missing parameter message. Does anyone know how to setup
> >the malloctracing? Where does the tracing information get written to and
> >how to interpret it?
> >
> >Thanks for any help.
> >
> >Regards, Marco.
> >
> >
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