memmax error
Hello everybody,
my ONLINE_7.2 tells me to adjust some kernelparameters as you see here:
> =================================
> MACHINE SPECIFIC NOTES
> FOR
> INFORMIX-OnLine 7.24.FC6X2 PRODUCT RELEASE
> DATE: 18 Nov 1998
> =================================
>
>PORT NUMBER: 014732(8MM CASSETTE) 014702(DAT CARTRIDGE) 014722(TAPE >CARTRIDGE) 014712(CD ROM)
>IRIS JOB NUMBER: 19318
>
>** This release does not run on 3.2.d release of DEC OSF/1 Operating >system
> The support for 3.2.d release will be added in next release.
>
>INFORMIX-OnLine Dynamic Server Shared Memory and Kernel Parameters:
>==================================================================
>
>The following kernel parameters must be adjusted to the indicated >values
>for minimally acceptable Informix-Online performance. See your DEC >OSF/1
>System Administrators Guide, or the doconfig (8) man page, for >information
>on adjusting these kernel parameters.
>
>SHMMAX: 2147483647
>SHMMIN: 1
>SHMALL: Not Applicable
>SHMMNI: 150
>SHMSEG: 150
>SHMBRK: Not Applicable
>MAXMEM: Not Applicable
>SEMMNI: 400
>SEMMNS: 100
>SEMMSL: 1600
>NFILES: Not Applicable
but when I do this especially the SHMMAX then I can't bring the
Databaseengine up, because it reports a sharedmemory error an enters the
following to the online.log:
>16:16:07 shmat: [ENOMEM][12]: out of available data space, check >system MAXMEM
>
>16:16:07 mt_shm_init: can't create virtual segment
Can anybody tell me which parameter I have to adjust in my Digital-UX?
Greetings from Salzburg
Wilfried Kreuzbauer.
Hi,
the ONCONFIG variable SHMBASE should be set to the following
SHMBASE 0x200000000
additionally try this parameter:
/etc/sysconfigtab:
section "ipc:"
"ssm-threshold=0"
section "vm:"
"new-wired-method=0"
Sven
Wilfried Kreuzbauer wrote:
>
> Hello everybody,
>
> my ONLINE_7.2 tells me to adjust some kernelparameters as you see here:
>
> > =================================
> > MACHINE SPECIFIC NOTES
> > FOR
> > INFORMIX-OnLine 7.24.FC6X2 PRODUCT RELEASE
> > DATE: 18 Nov 1998
> > =================================
> >
> >PORT NUMBER: 014732(8MM CASSETTE) 014702(DAT CARTRIDGE) 014722(TAPE >CARTRIDGE) 014712(CD ROM)
> >IRIS JOB NUMBER: 19318
> >
> >** This release does not run on 3.2.d release of DEC OSF/1 Operating >system
> > The support for 3.2.d release will be added in next release.
> >
> >INFORMIX-OnLine Dynamic Server Shared Memory and Kernel Parameters:
> >==================================================================
> >
> >The following kernel parameters must be adjusted to the indicated >values
> >for minimally acceptable Informix-Online performance. See your DEC >OSF/1
> >System Administrators Guide, or the doconfig (8) man page, for >information
> >on adjusting these kernel parameters.
> >
> >SHMMAX: 2147483647
> >SHMMIN: 1
> >SHMALL: Not Applicable
> >SHMMNI: 150
> >SHMSEG: 150
> >SHMBRK: Not Applicable
> >MAXMEM: Not Applicable
> >SEMMNI: 400
> >SEMMNS: 100
> >SEMMSL: 1600
> >NFILES: Not Applicable
>
> but when I do this especially the SHMMAX then I can't bring the
> Databaseengine up, because it reports a sharedmemory error an enters the
> following to the online.log:
>
> >16:16:07 shmat: [ENOMEM][12]: out of available data space, check >system MAXMEM
> >
> >16:16:07 mt_shm_init: can't create virtual segment>
> Can anybody tell me which parameter I have to adjust in my Digital-UX?
It is complaining about the size of shared memory -vs- MAXMEM, the
release notes say you do not have to set any particular value for
MAXMEM, but what is it set to and what is the size, approx, of your
resident shared memory segment? Note that on many systems you cannot
create a single shared memory segment larger than physical RAM, could
this be your problem?
Art S. Kagel