Re: Server won't initialize

Hi, setting SHMBASE to 0 certainly will not help. This is valid on HP-UX, but not other platforms. Check the "Machine Specific Notes" in "$INFORMIXDIR/release/en_us/0333/" directory for the recommended setting of SHMBASE for your platform. A letter "L" or "l" (for long) added to the number may be significant. Other than that use a configuration at the limit that can still start IDS correctly. With that running do a system command like "ipcs -m" as user "root" to see, how many SHM segments were created on OS level and how big they are. [ If IDS requests a big segment, but the OS allows only smaller ones, then IDS allocates several small ones (that show as such in "ipcs -m" output), but will handle them as one big segment (as shown in "onstat -g seg" output). ] You have configured your system to allow a maximum of 15 SHM segments (on OS level) per process. This may be the limit you are hitting. "ipcs -m" should reveal such a condition. In that case either tune your system to allow larger single segments or to allow for more SHM segments per process. At least that's where I would start figuring out what the problem is. Regards, Martin -- Martin Fuerderer IBM Informix Development Munich, Germany Information Management owner-informix-list@iiug.org wrote on 26.04.2005 07:23:00: > What is SHMBASE set to? Try setting it to "0" > > > "Steven Weiss" <sweiss@iafrica.com> wrote in message > news:d4ae07$b0l$1@ctb-nnrp2.saix.net... > > > > Hi, > > > > We seem to have a problem getting the server to initialize. We get an > > error > > shmat: [ENOMEM][12]: out of available data space, check system MAXMEM if > > we > > increase the amount of BUFFERS. I seem to get up to a limit of +- 120 MB > > shared memory although the machine has memory of 512 MB. I have set the > > kernel parameters as recommended by the machine notes as well as > > increasing > > the SHMMAX parameter (as recommended in a previous thread) to something > > really high with no joy. Anyone have any ideas? > > > > Platform: Unixware 7.1.1 / IDS 7.31.UD1 > > Memory : 512 MB > > > > > > Files - online.log, onconfig, stune, mtune > > ----- > > online.log > > -------------- > > 18:26:16 Informix Dynamic Server Stopped. > > 18:26:22 shmat: [ENOMEM][12]: out of available data space, check system > > MAXMEM > > 18:26:22 mt_shm_init: can't create resident segment > > 18:26:57 shmat: [ENOMEM][12]: out of available data space, check system > > MAXMEM > > 18:26:57 mt_shm_init: can't create resident segment > > > > onconfig > > ------------ > > #************************************************************************** > > # > > # INFORMIX SOFTWARE, INC. > > # > > # Title: onconfig.std > > # Description: Informix Dynamic Server Configuration Parameters > > # > > #************************************************************************** > > > > # Root Dbspace Configuration > > > > ROOTNAME rootdbs # Root dbspace name > > ROOTPATH /u/informix731/my_chunk/rootdbs> > #Path for device containing root dbspace > > ROOTOFFSET 0 # Offset of root dbspace into device > > (Kbytes) > > ROOTSIZE 50000 # Size of root dbspace (Kbytes)> > > > # Disk Mirroring Configuration Parameters > > > > MIRROR 0 # Mirroring flag (Yes = 1, No = 0) > > MIRRORPATH # Path for device containing mirroredroot > > MIRROROFFSET 0 # Offset into mirrored device (Kbytes)> > > > # Physical Log Configuration > > > > PHYSDBS rootdbs # Location (dbspace) of physical log > > PHYSFILE 10000 # Physical log file size (Kbytes)> > > > # Logical Log Configuration > > > > LOGFILES 10 # Number of logical log files > > LOGSIZE 500 # Logical log size (Kbytes)> > > > # Diagnostics > > > > MSGPATH /u/informix731/online.log # System message log file path > > CONSOLE /dev/console # System console message path > > ALARMPROGRAM /usr/local/informix/etc/log_full.sh # Alarm programpath > > SYSALARMPROGRAM /usr/local/informix/etc/evidence.sh # System Alarm program > > path > > TBLSPACE_STATS 1> > > > # System Archive Tape Device > > > > TAPEDEV /dev/rmt/ctape1 # Tape device path > > TAPEBLK 512 # Tape block size (Kbytes) > > TAPESIZE 1024000 # Maximum amount of data to put ontape > > (Kbytes) > > > > # Log Archive Tape Device > > > > LTAPEDEV /dev/null # Log tape device path > > LTAPEBLK 512 # Log tape block size (Kbytes) > > LTAPESIZE 1024000 # Max amount of data to put on logtape > > (Kbytes) > > > > # Optical > > > > STAGEBLOB # Informix Dynamic Server/Optical staging > > area > > > > # System Configuration > > > > SERVERNUM 0 # Unique id corresponding to a Dynamic> > Server instance > > DBSERVERNAME nphwtest_tcp # Name of default database server> > DBSERVERALIASES nphwtest,nphwtest_tcp # List of alternate dbservernames > > NETTYPE ipcshm,1,300,CPU # Configure poll thread(s) fornettype > > NETTYPE tlitcp,1,50,NET # Configure poll thread(s) for nettype > > DEADLOCK_TIMEOUT 60 # Max time to wait of lock indistributed > > env. > > RESIDENT 0 # Forced residency flag (Yes = 1, No = 0) > > > > MULTIPROCESSOR 0 # 0 for single-processor, 1 for> > multi-processor > > NUMCPUVPS 1 # Number of user (cpu) vps > > SINGLE_CPU_VP 1 # If non-zero, limit number of cpu vpsto > > one > > > > AFF_SPROC 0 # Affinity start processor > > AFF_NPROCS 0 # Affinity number of processors> > > > # Shared Memory Parameters > > > > LOCKS 10000 # Maximum number of locks > > BUFFERS 45000 # Maximum number of shared buffers > > NUMAIOVPS # Number of IO vps > > PHYSBUFF 32 # Physical log buffer size (Kbytes) > > LOGBUFF 32 # Logical log buffer size (Kbytes)> > LOGSMAX 10 # Maximum number of logical log files > > CLEANERS 2 # Number of buffer cleaner processes> > #SHMBASE 0xA000000L # Shared memory base address > > SHMBASE 0X0A000000 > > SHMVIRTSIZE 15000 # initial virtual shared memorysegment > > size > > SHMADD 15000 # Size of new shared memory segments > > (Kbytes) > > SHMTOTAL 0 # Total shared memory (Kbytes). > > 0=>unlimited > > CKPTINTVL 300 # Check point interval (in sec) > > LRUS 8 # Nu