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Re: Fwd: Re: Memory and InstantDB


Version 3.12 of InstantDB seems to have solved this problem.  At least the same
file that gives me an OutOfMemory error using 3.11 doesn't when I use 3.12.

On Mon, 13 Dec 1999, you wrote:
>
> Rich
> 
> If there really was 6993664 bytes free at the point of the crash then it
> does seem a bit odd. How confident are you that this represents a true
> figure at the point of the crash (you could try catching OutOfMemory
> exceptions and printing out the heap size).
> 
> Have you tried varying the stack size as well as the heap size?
> 
> Regards
> 
> Peter Hearty
> Instant Computer Solutions
> -----Original Message-----
> From: Rich Coad <rich@isyndicate.com>
> To: instantdb@smartcard.co.uk <instantdb@smartcard.co.uk>
> Date: 10 December 1999 20:13
> Subject: Memory and InstantDB
> 
> 
> >I am developing an application which receives XML input taht is parsed and
> >stored in an InstantDB database.  The input is parsed as it is received and
> >then sends the objects created to a separate (high priority) thread which
> >stores them in the database.  The expected concurrency definitely occurs
> and
> >the objects, once stored in InstantDB are being gc'ed.
> >
> >However, I am getting OutOfMemory errors with an input file as small as 1.5
> >MB.  This occurs when using Blackdown's JDK 1.1.7 v3 on an i386 with Redhat
> >Linux 6.0 and 128 MB of RAM.  When I use the new JDK 1.2.2 the problem does
> not
> >occur
> >
> >The output  from the trace log seems to indicate that there should be
> plenty of
> >memory still available - here it is with the minimum heap size set to 8 MB
> and
> >the maximum at default (16MB):
> >
> > main Total Memory=8388600 Free=7601136 Used 786424
> >main Total Memory=8388600 Free=7593208 Used 795392
> >main Total Memory=8388600 Free=7524784 Used 863816
> >main Total Memory=8388600 Free=7449336 Used 938224
> >main Total Memory=8388600 Free=7402864 Used 985736
> >main Total Memory=8388600 Free=7314888 Used 1073712
> >main Total Memory=8388600 Free=7256736 Used 1131864
> >main Total Memory=8388600 Free=7208424 Used 1180176
> >main Total Memory=8388600 Free=7075840 Used 1311720
> >main Total Memory=8388600 Free=6830176 Used 1558088
> >main Total Memory=8388600 Free=6780672 Used 1607928
> >main Total Memory=8388600 Free=6690464 Used 1698136
> >main Total Memory=8388600 Free=6570168 Used 1818432
> >main Total Memory=8388600 Free=6431360 Used 1957240
> >main Total Memory=8388600 Free=7160120 Used 1228144
> >main Total Memory=8388600 Free=7104656 Used 1283944
> >main Total Memory=8388600 Free=7049160 Used 1338400
> >main Total Memory=8388600 Free=6993664 Used 1394936
> >outputThread java.lang.OutOfMemoryError:
> >
> >
> >Anyone have any idea why this might occur?  If I turn of database storage
> then
> >the file is read through with no problems.  I've carefully reviewed my code
> to
> >make sure all ResultSets and Statements are closed and System.gc is called.
> >
> >
> > --
> >Rich Coad
> >Tech Team
> >iSyndicate.com
> >(415) 430-2369
> >Te audire no possum. Musa sapientum fixa est in aure.
> >To unsubscribe from this list, please an send
> >email to 'majordomo@smartcard.co.uk' with the text
> >'unsubscribe instantdb' in the message body.
> 
> To unsubscribe from this list, please an send
> email to 'majordomo@smartcard.co.uk' with the text
> 'unsubscribe instantdb' in the message body.
-- 
Rich Coad
Tech Team
iSyndicate.com
(415) 430-2369
Te audire no possum. Musa sapientum fixa est in aure.
To unsubscribe from this list, please an send
email to 'majordomo@smartcard.co.uk' with the text
'unsubscribe instantdb' in the message body.