TurboIMAGE database being corrupted by QTP

[Walter J. Murray]

Peter and the group,

I have eliminated QTP from the picture.  I can duplicate the problem
with a COBOL program calling DBPUT directly.

The only way I know to eliminate Bradmark (DBGENERAL) from the picture
is to rebuild the database using only HP utilities, which I am in the
process of doing.  

I'll post what I learn.

Thanks.

Walter  

Walter J. Murray

-----Original Message-----
From: powerh-l-bounces+wmurray=surewest.net at lists.sowder.com
[mailto:powerh-l-bounces+wmurray=surewest.net at lists.sowder.com] On
Behalf Of Peter Bateman
Sent: Friday, December 26, 2008 10:52 AM
To: walter murray; PowerHouse List
Subject: RE: TurboIMAGE database being corrupted by QTP

Hi Walter:
 
    You say:- "I can duplicate the problem consistently on a test
machine."
    This is good.
    I would try it without Bradmark in the picture. Just to eliminate
one vendor.
    If it reproduces without Bradmark great. If not I would call them to
see
    if they can debug this problem.
 
Regards,
Peter Bateman
 
    
    


> From: wmurray at surewest.ne
> To: powerh-l at lists.sowder.com
> Subject: TurboIMAGE database being corrupted by QTP
> Date: Wed, 24 Dec 2008 20:02:53 -0800
> 
> [Also posted to HP3000-L]
> 
> TurboIMAGE database being corrupted by QTP
> 
> Please help me get to the root of this problem. It looks like either a
> bug in TurboIMAGE (I hope not!) or a bug in PowerHouse 4GL (hard to
> imagine).
> 
> Environment: MPE/iX 7.5 PP3, PowerHouse 8.39.C1.
> 
> I have this production database that occasionally gets corrupted
during
> a QTP run. I can duplicate the problem consistently on a test machine.
> I don't just mean corrupted with bad data--I mean structural errors in
> the database. The errors always seem to be associated with a
particular
> detail data set. DBGENERAL typically reports the errors as (1) FREE
> SPACE COUNT INCONSISTENT, (2) DELETE CHAIN MISSING ENTRIES, and (3)
> DELETE CHAIN BROKEN. Sometimes there are also structural errors
related
> to the paths between this detail data set and the two related
automatic
> masters. I can repair the damage with DBGENERAL, but the database gets
> corrupted again in a few days.
> 
> QTP reports the problem with these error messages:
> "Data access error."
> "Action Taken: Run terminated."
> "MPE FILE ERROR 0 RETURNED BY FREADDIR ON ROOT FILE"
> 
> After QTP terminates the run, I check the database and find it
> corrupted.
> 
> I am thinking that TurboIMAGE usually does an excellent job of
> protecting itself against structural errors. Without using PM, it
> shouldn't be possible for an application to damage a database in this
> way. I wonder whether QTP always uses the IMAGE intrinsics, or whether
> it might sometimes sidestep IMAGE and modify internal database
> structures directly. Does anybody know?
> 
> The detail data set in question has about 15,000,000 entries. It is
> enabled for dynamic expansion, but the current capacity is still equal
> to the initial capacity, so no expansion has occurred yet. None of the
> master data sets is enabled for dynamic expansion. The data set is
> related to two automatic masters, and both of those paths are sorted.
> 
> I've placed a support call with COGNOS, but they haven't come up with
> anything yet. I also plan to place calls to HP and Bradmark. Can
> anybody help in the mean time? Thanks.
> 
> Walter
> 
> Walter J. Murray
> 
> 
> 
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