Connection goes down -1803

Hi everyone, Host: Aix 4.3.2 (bi-processor, 500MB Ram,...) DbServer: IDS 7.31 UC4 (on raw devices) Sqlhosts: onsoctcp Onconfig: see bottom Our program (ESQL/C) continuosly runs to monitor machinery activity. It connects & runs fine, but after a couple of days our SELECT return -1803 (Connection does not exist) |:-( The same application is OK with a plenty of IDS/OSs, but not with this pair. At the same time, other users work ok on db without problem. Long connections have problems with IDS 7.31 UCx? Thank you. Denis. Please, forgive my bad english... ---------------------------------------------- ---------------------------------------------- Our ONCONFIG: # Root Dbspace Configuration ROOTNAME rootdbs # Root dbspace name ROOTPATH /dev/rrootdbs # Path for device containing root dbspace ROOTOFFSET 0 # Offset of root dbspace into device (Kbytes) ROOTSIZE 70000 # Size of root dbspace (Kbytes) # Disk Mirroring Configuration Parameters MIRROR 0 # Mirroring flag (Yes = 1, No = 0) MIRRORPATH # Path for device containing mirrored root 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 19 # Number of logical log files LOGSIZE 1000 # Logical log size (Kbytes) # Diagnostics MSGPATH /home/informix/online.log # System message log file path CONSOLE /dev/console # System console message path ALARMPROGRAM /home/informix/etc/log_full.sh # Alarm program pathSYSALARMPROGRAM /home/informix/etc/evidence.sh # System Alarm program path TBLSPACE_STATS 1 # System Archive Tape Device TAPEDEV /dev/null # Tape device path TAPEBLK 16 # Tape block size (Kbytes) TAPESIZE 10240 # 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 10240 # Max amount of data to put on log tape (Kbytes) # Optical STAGEBLOB # Informix Dynamic Server/Optical staging area # System Configuration SERVERNUM 0 # Unique id corresponding to a DynamicServer instance DBSERVERNAME ol_srv1 # Name of default database server DBSERVERALIASES # List of alternate dbservernames NETTYPE soctcp,1,, # 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 1 # 0 for single-processor, 1 formulti-processor NUMCPUVPS 2 # Number of user (cpu) vps SINGLE_CPU_VP 0 # 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 100000 # Maximum number of locks BUFFERS 40000 # Maximum number of shared buffers NUMAIOVPS # Number of IO vps PHYSBUFF 64 # Physical log buffer size (Kbytes) LOGBUFF 64 # Logical log buffer size (Kbytes)LOGSMAX 20 # Maximum number of logical log files CLEANERS 8 # Number of buffer cleaner processes 1 SHMBASE 0x30000000 # Shared memory base address SHMVIRTSIZE 8000 # initial virtual shared memory segment size SHMADD 8192 # Size of new shared memory segments (Kbytes ) SHMTOTAL 0 # Total shared memory (Kbytes). 0=>unlimited CKPTINTVL 300 # Check point interval (in sec) LRUS 8 # Number of LRU queues LRU_MAX_DIRTY 60 # LRU percent dirty begin cleaning limit LRU_MIN_DIRTY 50 # 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 64 # Stack size (Kbytes) # 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 /home/informix/etc/dr.lostfound # DR lost+found file path # CDR Variables CDR_LOGBUFFERS 2048 # size of log reading buffer pool (Kbytes) CDR_EVALTHREADS 1,2 # evaluator threads (per-cpu-vp,additional) CDR_DSLOCKWAIT 5 # DS lockwait timeout (seconds) CDR_QUEUEMEM 4096 # Maximum amount of memory for any CDR queue (Kbytes)CDR_LOGDELTA 30 # % of log space allowed in queue memory CDR_NUMCONNECT 16 # Expected connections per server CDR_NIFRETRY 300 # Connection retry (seconds) CDR_NIFCOMPRESS 0 # Link level compression (-1 never, 0 none, 9 max) # Backup/Restore variables BAR_ACT_LOG /tmp/bar_act.log BAR_MAX_BACKUP 0 BAR_RETRY 1 BAR_NB_XPORT_COUNT 10 BAR_XFER_BUF_SIZE 31 # Informix Storage Manager variables ISM_DATA_POOL ISMData # If the data pool name is changed, be sure to # update $INFORMIXDIR/bin/onbar. Change to # ism_catalog -create_bootstrap -pool <new name> ISM_LOG_POOL ISMLogs # Read Ahead Variables RA_PAGES # Number of pages to attempt to read ahead RA_THRESHOLD # Number of pages left before next group DBSPACETEMP tmpdbs # Default temp dbspaces DUMPDIR /tmp # Preserve diagnostics in this directory DUMPSHMEM 1 # Dump a copy of shared memory DUMPGCORE 0 # Dump a core image using 'gcore' DUMPCORE 0 # Dump a core image (Warning:this abortsDynamic Server) DUMPCNT 1 # Number of shared memory or gcore dumps for # a single user's session FILLFACTOR 90 # Fill factor for building indexe

Denis Londero wrote: > Hi everyone, > > Host: Aix 4.3.2 (bi-processor, 500MB Ram,...) > DbServer: IDS 7.31 UC4 (on raw devices) > Sqlhosts: onsoctcp > Onconfig: see bottom > > Our program (ESQL/C) continuosly runs to monitor machinery activity. > It connects & runs fine, but after a couple of days our SELECT return -1803 > (Connection does not exist) |:-( This may be a silly question, but are you sure that there isn't a cron job or a system job that "bounces" your Informix instance or your server every once in a while? Rudy

Yes, I'm sure. No cron or job interferes with Informix engine, engine is running and other clients regularly connect. > > Host: Aix 4.3.2 (bi-processor, 500MB Ram,...) > > DbServer: IDS 7.31 UC4 (on raw devices) > > Sqlhosts: onsoctcp > > Onconfig: see bottom > > > > Our program (ESQL/C) continuosly runs to monitor machinery activity. > > It connects & runs fine, but after a couple of days our SELECT return -1803 > > (Connection does not exist) |:-( > > This may be a silly question, but are you sure that there isn't a cron job or a > system job that "bounces" your Informix instance or your server every once in a > while? > > Rudy >

How about just catching the 1803 error and performing a re-connect? That would be a better solution in the long run anyway. -- "Denis Londero" <londero@tecnest.it> wrote in message news:8f6mns$27m$1@pinco.nettuno.it... > Hi everyone, > > Host: Aix 4.3.2 (bi-processor, 500MB Ram,...) > DbServer: IDS 7.31 UC4 (on raw devices) > Sqlhosts: onsoctcp > Onconfig: see bottom > > Our program (ESQL/C) continuosly runs to monitor machinery activity. > It connects & runs fine, but after a couple of days our SELECT return -1803 > (Connection does not exist) |:-( > The same application is OK with a plenty of IDS/OSs, but not with this pair. > At the same time, other users work ok on db without problem. > > Long connections have problems with IDS 7.31 UCx? > > Thank you. > Denis. > Please, forgive my bad english... > > ---------------------------------------------- > ---------------------------------------------- > > Our ONCONFIG: > > # Root Dbspace Configuration > > ROOTNAME rootdbs # Root dbspace name > ROOTPATH /dev/rrootdbs # Path for device containing root dbspace > ROOTOFFSET 0 # Offset of root dbspace into device > (Kbytes) > ROOTSIZE 70000 # Size of root dbspace (Kbytes)> > # Disk Mirroring Configuration Parameters > > MIRROR 0 # Mirroring flag (Yes = 1, No = 0) > MIRRORPATH # Path for device containing mirrored root > 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 19 # Number of logical log files > LOGSIZE 1000 # Logical log size (Kbytes)> > # Diagnostics > > MSGPATH /home/informix/online.log # System message log file path > CONSOLE /dev/console # System console message path > ALARMPROGRAM /home/informix/etc/log_full.sh # Alarm program path> SYSALARMPROGRAM /home/informix/etc/evidence.sh # System Alarm program path > TBLSPACE_STATS 1> > # System Archive Tape Device > > TAPEDEV /dev/null # Tape device path > TAPEBLK 16 # Tape block size (Kbytes) > TAPESIZE 10240 # 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 10240 # Max amount of data to put on log tape > (Kbytes)> > # Optical > > STAGEBLOB # Informix Dynamic Server/Optical staging > area > > # System Configuration > > SERVERNUM 0 # Unique id corresponding to a Dynamic> Server instance > DBSERVERNAME ol_srv1 # Name of default database server > DBSERVERALIASES # List of alternate dbservernames > NETTYPE soctcp,1,, # 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 1 # 0 for single-processor, 1 for> multi-processor > NUMCPUVPS 2 # Number of user (cpu) vps > SINGLE_CPU_VP 0 # If non-zero, limit number of cpu vps to> one > > NOAGE 0 # Process aging > AFF_SPROC 0 # Affinity start processor > AFF_NPROCS 0 # Affinity number of processors> > # Shared Memory Parameters > > LOCKS 100000 # Maximum number of locks > BUFFERS 40000 # Maximum number of shared buffers > NUMAIOVPS # Number of IO vps > PHYSBUFF 64 # Physical log buffer size (Kbytes) > LOGBUFF 64 # Logical log buffer size (Kbytes)> LOGSMAX 20 # Maximum number of logical log files > CLEANERS 8 # Number of buffer cleaner processes 1 > SHMBASE 0x30000000 # Shared memory base address > SHMVIRTSIZE 8000 # initial virtual shared memory segmentsize > SHMADD 8192 # Size of new shared memory segments (Kbytes > ) > SHMTOTAL 0 # Total shared memory (Kbytes). 0=>unlimited > CKPTINTVL 300 # Check point interval (in sec) > LRUS 8 # Number of LRU queues > LRU_MAX_DIRTY 60 # LRU percent dirty begin cleaning limit > LRU_MIN_DIRTY 50 # LRU percent dirty end cleaning limit > LTXHWM 50 # Long transaction high water mark> percentage > LTXEHWM 60 # Long transaction high water mark > (exclusive) > TXTIMEOUT 0x12c # Transaction timeout (in sec) > STACKSIZE 64 # Stack size (Kbytes)> > # 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 worker> threads > ON_RECVRY_THREADS 1 # Default number of online workerthreads > > # 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 /home/informix/etc/dr.lostfound # DR lost+found file path > > # CDR Variables > CDR_LOGBUFFERS 2048 # size of log reading buffer pool (Kbytes) > CDR_EVALTHREADS 1,2 # evaluator threads (per-cpu-vp,additional) > CDR_DSLOCKWAIT 5 # DS lockwait timeout (seconds) > CDR_QUEUEMEM 4096 # Maximum amount of memory for any CDRqueue > (Kbytes) > CDR_LOGDELTA 30 # % of log space allowed in queue memory > CDR_NUMCONNECT 16 # Expected connections per server > CDR_NIFRETRY 300 # Connection retry (seconds) > CDR_NIFCOMPRESS 0 # Link level compression (-1 never, 0 none, > 9 max)> > # Backup/Restore variables > BAR_ACT_LOG /tmp/bar_act.log > BAR_MAX_BACKUP 0 > BAR_RETRY 1 > BAR_NB_XPORT_COUNT 10 > BAR_XFER_BUF_SIZE 31> > # Informix Storage Manager variables > ISM_DATA_POOL ISMData # If the data pool name is changed, be sure > to > # update $INFORMIXDIR/bin/onbar. Change to > # ism_catalog -create_bootstrap -pool <new name> > ISM_LOG_POOL ISMLogs > > # Read Ahead Variables > RA_PAGES # Number of pages to attempt to read ahead > RA_THRESHOLD