Subject | RE: [firebird-support] Re: Getting IBServer to release memory |
---|---|
Author | Alan McDonald |
Post date | 2003-07-10T09:29:25Z |
Svein has answered this - I might add that by doing small amounts of
updates/inserts and then committing also keeps memory usage to very
managable levels. It also keeps transactions moving along nicely and
genrally keeps the server feeling "light". Doing 1 million record updates
and then committing makes the server feel very heavy. The commit may well
take much longer than the update.
Alan
updates/inserts and then committing also keeps memory usage to very
managable levels. It also keeps transactions moving along nicely and
genrally keeps the server feeling "light". Doing 1 million record updates
and then committing makes the server feel very heavy. The commit may well
take much longer than the update.
Alan
> -----Original Message-----
> From: chriskudla [mailto:chris@...]
> Sent: Thursday, 10 July 2003 6:30 PM
> To: firebird-support@yahoogroups.com
> Subject: [firebird-support] Re: Getting IBServer to release memory
>
>
> We update all the records and then do a commit. I am not sure what
> you mean by 'incremental commit', could you explain?
> Thanks in advance :-)
>
>
> --- In firebird-support@yahoogroups.com, "Alan McDonald" <alan@m...>
> wrote:
> > does your fairly large volume update use incremental commit? or
> does it
> > update thousands of records before committing?
> > Alan
> >
> > > -----Original Message-----
> > > From: chriskudla [mailto:chris@o...]
> > > Sent: Wednesday, 9 July 2003 11:40 PM
> > > To: firebird-support@yahoogroups.com
> > > Subject: [firebird-support] Getting IBServer to release memory
> > >
> > >
> > > One of our users running Firebird 1.0 Classic on Windows 2003
> Server
> > > has occasions where they perform a procedure which seems to cause
> > > IBserver to use large quantities of memory. We have checked the
> > > application using Memproof and there are no open transactions or
> > > memory leaks.
> > > Our app is written using Delphi 7 and we are using the TIBSQL
> > > component to update fairly large volumes of transactions in this
> > > particular function.
> > > It seems as if IBserver re-uses the memory (which we are
> monitoring
> > > with Task Manager) however it seems the only way to make it
> release
> > > the memory is to stop and restart the service.
> > > This is a bit problematic as the server is in use for at least 12
> > > hours of the day and is complicated by the fact the they are using
> > > Terminal Services for the client connections to the server,
> meaning
> > > that the client applications plus the IBserver are all running on
> the
> > > one machine.
> > > Is the only solution to stop and start the Ibserver on a regular
> > > basis?
> > >
> > > I have also read that one can call SetProcessWorkingSetSize and
> pass
> > > it the handle of the process you want to have swept and -1, -1 as
> the
> > > other two params. This causes windows to sweep the app to release
> > > heap space. I only seem to be able to run this function on a
> process
> > > if it running as an application. When I try to run it against
> > > IBServer running as a service, I get "Access Denied" errors.
> > > Is it worthwhile running Interbase as an app, rather than as a
> > > service, and then running this function occasionally throughout
> the
> > > day, or will this just be detrimental to the performance of the
> > > server, as now its memory is all sitting as virtual memory on the
> > > hard disk?
> > > The reason why I am doing this is to make any extra memory
> available
> > > for the EXE's that are also running on the server.
> > >
> > >
> > >
> > >
> > > To unsubscribe from this group, send an email to:
> > > firebird-support-unsubscribe@yahoogroups.com
> > >
> > >
> > >
> > > Your use of Yahoo! Groups is subject to
> http://docs.yahoo.com/info/terms/
> > >
> > >
>
>
>
> To unsubscribe from this group, send an email to:
> firebird-support-unsubscribe@yahoogroups.com
>
>
>
> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
>
>