Informix error - Shared Memory
Posted in 1999
Dear Sir,
I=B4ve installed Informix On-line 7.13 in our server running AIX 4.2
successfuly, but when I try to initialize the system (onmonitor -> Modes ->
On-Line) the following error occurs:
Unable to attach to shared memory.
Invalid argument
What=B4s wrong ????? I hope you may help me !
Log file:
/var/adm/informix/ov2.log
Tue Jan 12 15:34:05 1999
15:34:05 DR: DRAUTO is 0 (Off)
15:34:05 listener-thread: err =3D 0:
15:34:05 Attempting to bring listener thread down
15:34:05 PANIC: Attempting to bring system down
This is our /usr/informix/etc/onconfig.ov2 file
# Root Dbspace Configuration
ROOTNAME ov2_root # Root dbspace nameROOTPATH /dev/rov2_root_c00_p # Path for device containing root
dbspace
ROOTOFFSET 16 # Offset of root dbspace into device
(Kbytes)
ROOTSIZE 2047936 # Size of root dbspace (Kbytes)
# Disk Mirroring Configuration Parameters
MIRROR 0 # Mirroring flag (Yes =3D 1, No =3D 0)
MIRRORPATH # Path for device containing mirrored root
MIRROROFFSET 0 # Offset into mirrored device (Kbytes)
# Physical Log Configuration
PHYSDBS ov2_root # Location (dbspace) of physical log
PHYSFILE 40000 # Physical log file size (Kbytes)
# Logical Log Configuration
LOGFILES 20 # Number of logical log files
LOGSIZE 4000 # Logical log size (Kbytes)
# Diagnostics
MSGPATH /var/adm/informix/ov2.log # System message log file path
CONSOLE /dev/console # System console message path
ALARMPROGRAM # Alarm program path
# System Archive Tape Device
TAPEDEV /dev/rmt0 # Tape device path
TAPEBLK 16 # Tape block size (Kbytes)
TAPESIZE 4000000 # Maximum amount of data to put on tape
(Kbytes)
# Log Archive Tape Device
LTAPEDEV /dev/null # Log tape device path
LTAPEBLK 16 # Log tape block size (Kbytes)
LTAPESIZE 4000000 # Max amount of data to put on log tape
(Kbytes)
# Optical
STAGEBLOB # INFORMIX-OnLine/Optical staging area
# System Configuration
SERVERNUM 0 # Unique id corresponding to a OnLineinstance
DBSERVERNAME suz3 # Name of default database server
DBSERVERALIASES suz3_shm # List of alternate dbservernames
NETTYPE ipcshm,1,30,CPU # Override sqlhosts nettype parameters
NETTYPE soctcp,3,30,NET # Override sqlhosts nettype parameters
DEADLOCK_TIMEOUT 60 # Max time to wait of lock in distributed
env.
RESIDENT 0 # Forced residency flag (Yes =3D 1, No =3D=
0)
MULTIPROCESSOR 0 # 0 for single-processor, 1 formulti-processor
NUMCPUVPS 1 # Number of user (cpu) vps
SINGLE_CPU_VP 1 # If non-zero, limit number of cpu vps toone
NOAGE 0 # Process aging
AFF_SPROC 0 # Affinity start processor
AFF_NPROCS 0 # Affinity number of processors
# Shared Memory Parameters
LOCKS 2000 # Maximum number of locks
BUFFERS 4000 # Maximum number of shared buffers
NUMAIOVPS # Number of IO vps
PHYSBUFF 128 # Physical log buffer size (Kbytes)
LOGBUFF 32 # Logical log buffer size (Kbytes)LOGSMAX 50 # Maximum number of logical log files
CLEANERS 2 # Number of buffer cleaner processes
SHMBASE 0x30000000 # Shared memory base address
SHMVIRTSIZE 32768 # initial virtual shared memory segment size
SHMADD 32768 # Size of new shared memory segments
(Kbytes)
SHMTOTAL 0 # Total shared memory (Kbytes). 0=3D>unlimit=ed
CKPTINTVL 900 # Check point interval (in sec)
LRUS 4 # Number of LRU queues
LRU_MAX_DIRTY 20 # LRU percent dirty begin cleaning limit
LRU_MIN_DIRTY 5 # LRU percent dirty end cleaning limit
LTXHWM 50 # Long transaction high water markpercentage
LTXEHWM 60 # Long transaction high water mark
(exclusive)
TXTIMEOUT 0x12c # Transaction timeout (in sec)
STACKSIZE 32 # Stack size (Kbytes)# System Page Size
# BUFFSIZE - OnLine no longer supports this configuration parameter.
# To determine the page size used by OnLine on your platform
# see the last line of output from the command, 'onstat -b'.
# Recovery Variables
# OFF_RECVRY_THREADS:
# Number of parallel worker threads during fast recovery or an offline
restore.
# ON_RECVRY_THREADS:
# Number of parallel worker threads during an online restore.
OFF_RECVRY_THREADS 10 # Default number of offline workerthreads
ON_RECVRY_THREADS 1 # Default number of online worker threads
# Data Replication Variables
# DRAUTO: 0 manual, 1 retain type, 2 reverse type
DRAUTO 0 # DR automatic switchover
DRINTERVAL 30 # DR max time between DR buffer flushes (in
sec)
DRTIMEOUT 30 # DR network timeout (in sec)DRLOSTFOUND /usr/informix/etc/dr.lostfound # DR lost+found file path
# Read Ahead Variables
RA_PAGES # Number of pages to attempt to read ahead
RA_THRESHOLD # Number of pages left before next group
# DBSPACETEMP:
# OnLine equivalent of DBTEMP for SE. This is the list of dbspaces
# that the OnLine SQL Engine will use to create temp tables etc.
# If specified it must be a colon separated list of dbspaces that exist
# when the OnLine system is brought online. If not specified, or if
# all dbspaces specified are invalid, various ad hoc queries will create
# temporary files in /tmp instead.
DBSPACETEMP # Default temp dbspaces
# DUMP*:
# The following parameters control the type of diagnostics information which
# is preserved when an unanticipated error condition (assertion failure)
occurs
# during OnLine operations.
# For DUMPSHMEM, DUMPGCORE and DUMPCORE 1 means Yes, 0 means No.
DUMPDIR /tmp # Preserve diagnostics in this directory
DUMPSHMEM 0 # Dump a copy of shared memory
DUMPGCORE 0 # Dump a core image using 'gcore'
DUMPCORE 0 # Dump a core image (Warning:this aborts
OnLine)
DUMPCNT 1 # Number of shared memory or gcore dumps for
# a single user's session
# ADT*
# The following parameters control the type and level of secure auditing
# present in the OnLine system. By default, ADTMODE is 0 and auditing
# is disabled
FILLFACTOR 90 # Fill factor for building indexes
# method for OnLine to use when determining current time
USEOSTIME