query maxed out problem.

hi all: I am running informix 7.22 on solaris 2.6. I wrote a web interface for the user to construct sql statement, then I save it to a sql file, and call dbaccess to execute it. I just found out that if I submit the query very quickly, say 50 queris in about 10 secs, some of my queris won't get through, the error message showed up is: 25588: The appl process cannot connect to OnLine server Hamlet. onstat -g mgm shows the maximum query should be 187, so thatshouldn't be a problem. Could the server be so busy that it can't accept dbaccess calls? the following are my config: ROOTNAME rootdbs # Root dbspace nameROOTPATH /usr/informix/dbspace/rootdbs ROOTOFFSET 0 # Offset of root dbspace into device (Kbytes) ROOTSIZE 125000 # Size of root dbspace (Kbytes)MIRROR 0 # Mirroring flag (Yes = 1, No = 0) MIRRORPATH # Path for device containing mirroredroot MIRROROFFSET 0 # Offset into mirrored device (Kbytes)PHYSDBS rootdbs # Location (dbspace) of physical log PHYSFILE 10000 # Physical log file size (Kbytes) LOGFILES 8 # Number of logical log files LOGSIZE 10000 # Logical log size (Kbytes)MSGPATH /usr/informix/online.log # System message log file path CONSOLE /dev/null # System null message pathALARMPROGRAM /usr/informix/log_full.sh # Alarm program path TAPEDEV /dev/null # Tape device path TAPEBLK 16 # Tape block size (Kbytes) TAPESIZE 10240 # Maximum amount of data to put on tape (Kbytes) LTAPEDEV value # Log tape device path LTAPEBLK 16 # Log tape block size (Kbytes) LTAPESIZE 10240 # Max amount of data to put on log tape (Kbytes)STAGEBLOB # INFORMIX-OnLine/Optical staging area SERVERNUM 1 # Unique id corresponding to a OnLineinstance DBSERVERNAME Hamlet # Name of default database server DBSERVERALIASES Macbeth # List of alternate dbservernames DEADLOCK_TIMEOUT 60 # Max time to wait of lock indistributed 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 vpsto one NOAGE 0 # Process aging AFF_SPROC 0 # Affinity start processor AFF_NPROCS 0 # Affinity number of processors LOCKS 2000 # Maximum number of locks BUFFERS 6553 # Maximum number of shared buffers NUMAIOVPS 15 # Number of IO vps PHYSBUFF 64 # Physical log buffer size (Kbytes) LOGBUFF 64 # Logical log buffer size (Kbytes)LOGSMAX 10 # Maximum number of logical log files CLEANERS 2 # Number of buffer cleaner processes SHMBASE 0xa000000 # 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 markpercentage LTXEHWM 60 # Long transaction high water mark (exclusive) TXTIMEOUT 0x12c # Transaction timeout (in sec) STACKSIZE 32 # Stack size (Kbytes) OFF_RECVRY_THREADS 10 # Default number of offline workerthreads ON_RECVRY_THREADS 1 # Default number of online workerthreads DRAUTO 0 # DR automatic switchover DRINTERVAL 30 # DR max time between DR buffer flushes (in sec) DRTIMEOUT 30 # DR network timeout (in sec) DRLOSTFOUND /tmp # DR lost+found file pathCDR_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) BAR_ACT_LOG /tmp/bar_act.log BAR_MAX_BACKUP 0 BAR_RETRY 1 BAR_NB_XPORT_COUNT 10 BAR_XFER_BUF_SIZE 31 RA_PAGES 50 # Number of pages to attempt to readahead RA_THRESHOLD 20 # Number of pages left before next group DBSPACETEMP sherlocktemp # 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 aborts OnLine) DUMPCNT 1 # Number of shared memory or gcore dumpsfor FILLFACTOR 90 # Fill factor for building indexes USEOSTIME 0 # 0: use internal time(fast), 1: get time from OS(slow) MAX_PDQPRIORITY 12 # Maximum allowed pdqpriority DS_MAX_QUERIES # Maximum number of decision supportqueries DS_TOTAL_MEMORY 24000 # Decision support memory (Kbytes) DS_MAX_SCANS 1048576 # Maximum number of decision supportscans DATASKIP off # List of dbspaces to skip OPTCOMPIND 2 # To hint the optimizer ONDBSPACEDOWN 2 # Dbspace down option: 0 = CONTINUE, 1 = ABORT, 2 = WAITLBU_PRESERVE 0 # Preserve last log for log backup OPCACHEMAX 0 # Maximum optical cache size (Kbytes) HETERO_COMMIT 0 NETTYPE ipcshm,2,10,CPU # Configure poll thread(s) for nettype NETTYPE tlitcp,5,30,NET # Configure poll thread(s) for nettype

Yan Zhu wrote: > > hi all: > > I am running informix 7.22 on solaris 2.6. > I wrote a web interface for the user to construct sql statement, > then I save it to a sql file, and call dbaccess to execute it. I just > found out that if I submit the query very quickly, say 50 queris in > about 10 secs, some of my queris won't get through, the error message > showed up is: > > 25588: The appl process cannot connect to OnLine server Hamlet. Your NETTYPE parameters for shared memory are only listening for 10 connections each. Increase the third parameter to something like 100 or more, you may want to do this for the tlitcp connection listeners also. > NETTYPE ipcshm,2,10,CPU # Configure poll thread(s) for nettype > NETTYPE tlitcp,5,30,NET # Configure poll thread(s) for nettype Art S. Kagel