Antwort: Re: [UMN_MAPSERVER-USERS] Oracle-Connection-Pooling in Java

[Benedikt Rothe]

Hi

The hs_err*.log file show functions in the
oracle-libs. (Unfortunately there is no stack-trace, so I cannot
say, which function/line in maporacle.c produced this.)

Example for a hs_err*.log:
An unexpected exception has been detected in native code outside the VM.
Unexpected Signal : 11 occurred at PC=0x9B0025D8
Function=kpufhndl0+0x3E
Library=/opt/oracle/OraHome1/lib/libclntsh.so.10.1

Current Java thread:
        at edu.umn.gis.mapscript.mapscriptJNI.mapObj_drawQuery(Native 
Method)
        at edu.umn.gis.mapscript.mapObj.drawQuery(mapObj.java:402)
        ....

I spent some time to analyse the problem, but in the end I was not able to 
give a better
report  than "It crashes". Therefore I didn't post a bug :-(

Benedikt


UMN MapServer Users List <MAPSERVER-USERS at LISTS.UMN.EDU> schrieb am 
09.01.2006 16:04:58:

> On 1/9/06, Benedikt Rothe <umn-ms at hydrotec.de> wrote:
> >
> > Ciao Umberto
> >
> > This seemes to be an misunderstanding. Sorry for my poor english.
> >
> > Umberto Nicoletti <umberto.nicoletti at gmail.com> schrieb am 09.01.2006
> > 15:01:52:
> >
> >  > Hi Benedikt!
> > ...
> >  >
> >  > >
> >  > > - After using synchronized "enough" I didn't have crashes of 
Tomcat.
> >  > >
> > ...
> > > Do you still have them?
> >
> 
> I meant the files.
> 
> > I do not have crashes any more.
> >
> > - I used to have crashes in the past
> > - I added "synchronized"
> > - I added even more "synchronized"  :-)
> > - The crashes disappeard.
> >
> > I posted "Oracle-Connection-Pooling in Java" because
> > 1. It was new to me, that one can use Mapserver inside Tomcat with
> > Connection-Pooling
> >    without crashes. I wanted to report it, because I'm proud and 
happy.
> 
> You are right to be proud and to be happy, but if we could find were
> the creashes occurred we cut incorporate the necessary changes in
> mapserver so that we all be happy (and your name will be remembered
> among the glorious Mapserver users and devs :-) ).
> 
> Best regards,
> Umberto
> 
> > 2. I still had these Memory-Leaks, which could solve to some degree.
> >
> > Benedikt
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