Oninit cdi / Archive
Talk to an expert →

shmget: [EEXIST][17]: key 52564801: shared memory already exists

Posted in 2004

Topics: Storage & Space Management, Server Administration, Transactions, Locking & Isolation, Logging & Checkpoints, Networking & sqlhosts Configuration, Platform-Specific Issues

Sergey — — source: Usenet: comp.databases.informix

Hi guys! Need some help with informix... here is what happens. on our Linux Red Hat 7 machine we have 3 versions of informix(7.3, 9.2, 9.4) 7.3 and 9.2 work fine after initialization, but 9.4 doesn't want to initialize. I also checked onconfig(s) and found that 7.3 and 9.2 use the same SHMBASE 0x10000000L and 9.4 use 0x44000000L... don't know if it can help you. here is part of online.log ue Nov 30 15:20:02 2004 15:20:02 Event alarms enabled. ALARMPROG = '/iif94/etc/alarmprogram.sh' 15:20:02 Booting Language <c> from module <> 15:20:02 Loading Module <CNULL> 15:20:02 Booting Language <builtin> from module <> 15:20:02 Loading Module <BUILTINNULL> 15:20:16 IBM Informix Dynamic Server Started. 15:20:16 shmget: [EEXIST][17]: key 52564801: shared memory alreadyexists 15:20:16 mt_shm_init: can't create resident segment and part of onconfig file # Physical Log Configuration PHYSDBS rootdbs # Location (dbspace) of physical log PHYSFILE 2000 # Physical log file size (Kbytes) # Logical Log Configuration LOGFILES 6 # Number of logical log files LOGSIZE 2000 # Logical log size (Kbytes) # Diagnostics MSGPATH /iif94/online.log # System message log file path CONSOLE /dev/console # System console message path # To automatically backup logical logs, edit alarmprogram.sh and set # BACKUPLOGS=Y ALARMPROGRAM /iif94/etc/alarmprogram.sh # Alarm program path TBLSPACE_STATS 1 # Maintain tblspace statistics # System Archive Tape Device TAPEDEV /dev/nul # Tape device path TAPEBLK 32 # Tape block size (Kbytes) TAPESIZE 10240 # Maximum amount of data to put on tape (Kbytes) # Log Archive Tape Device LTAPEDEV /dev/nul # Log tape device path LTAPEBLK 32 # Log tape block size (Kbytes) LTAPESIZE 10240 # Max amount of data to put on log tape (Kbytes) # Optical STAGEBLOB # Informix Dynamic Server staging area # System Configuration SERVERNUM 2 # Unique id corresponding to a OnLine instance DBSERVERNAME tester94 # Name of default database server DBSERVERALIASES # List of alternate dbservernames NETTYPE # Configure poll thread(s) for nettype DEADLOCK_TIMEOUT 60 # Max time to wait of lock in distributed env. RESIDENT 0 # Forced residency flag (Yes = 1, No = 0) MULTIPROCESSOR 0 # 0 for single-processor, 1 formulti-processor NUMCPUVPS 1 # Number of user (cpu) vps SINGLE_CPU_VP 0 # If non-zero, limit number of cpu vpsto one 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 5000 # Maximum number of shared buffers NUMAIOVPS # Number of IO vps PHYSBUFF 32 # Physical log buffer size (Kbytes) LOGBUFF 32 # Logical log buffer size (Kbytes) CLEANERS 1 # Number of buffer cleaner processes SHMBASE 0x44000000L # Shared memory base address Please help... this machine must become our new production.

↪ replying to Sergey
Neil Truby — — source: Usenet: comp.databases.informix

"Sergey" <sshumilov@yahoo.com> wrote in message news:cf0636fd.0411302319.117a9da3@posting.google.com... > Hi guys! > Need some help with informix... > > here is what happens. > on our Linux Red Hat 7 machine we have 3 versions of informix(7.3, > 9.2, 9.4) > 7.3 and 9.2 work fine after initialization, but 9.4 doesn't want to > initialize. > I also checked onconfig(s) and found that 7.3 and 9.2 use the same > SHMBASE 0x10000000L and 9.4 use 0x44000000L... don't know if it can > help you. have you got another server running with SERVERNUM=2?

Glossary