Re: Out of buffer?
Posted in 1999
Xavier wrote:
>
> On Wed, 26 May 1999, Mark D. Stock wrote:
>
> > Xavier wrote:
> > >
> > > On Wed, 26 May 1999, Mark D. Stock wrote:
> > >
> > > > Xavier wrote:
> > > > >
> > > > > Hi,
> > > > >
> > > > > I got the following error message from an Informix IDS 7.30:
> > > > >
> > > > > <<Informix Dynamic Server>>> WARNING! Buffer pool size may cause
> > > > > Dynamic Server to get into
> > > > > a locked state. Recommended minimum buffer pool size is
> > > > > 4 times maximum concurrent user threads.
> > > > >
> > > > > <<Informix Dynamic Server>>> Logical Log 151 Complete.
> > > > >
> > > > > Any idea how to solve it?
> > > >
> > > > Add more buffers (BUFFERS configuration parameter)?
> > >
> > > Ok. Did you know a rule to calculate how many buffers shoule be
> > > allocated?
> >
> > I'm going to sound very patronising now, but how about 4 times the
> > maximum concurrent users? ;-)
> >
> > Why not post your onconfig file and we can have a look at parameters
> > such as BUFFERS, NETTYPE, etc.
>
> Well good idea! :)
>
> ---
>
> #**************************************************************************
> #
> # INFORMIX SOFTWARE, INC.
> #
> # Title: onconfig.std
> # Description: Informix Dynamic Server Configuration Parameters
> #
> #**************************************************************************
>
> # Root Dbspace Configuration
>
> ROOTNAME rootdbs # Root dbspace name> ROOTPATH /informix/dbspaces/rootdbs
> # Path for device containing root dbspace
> ROOTOFFSET 0 # Offset of root dbspace into device (Kbytes)
> ROOTSIZE 250000 # 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 1000 # Physical log file size (Kbytes)>
> # Logical Log Configuration
>
> LOGFILES 6 # Number of logical log files
> LOGSIZE 10000 # Logical log size (Kbytes)>
> # Diagnostics
>
> # System message log file path
> MSGPATH /usr/local/informix/online.log
> # System console message path
> CONSOLE /var/log/messages
> # Alarm program path
> ALARMPROGRAM /usr/local/informix/etc/log_full.sh
> # System Alarm program path
> SYSALARMPROGRAM /usr/local/informix/etc/evidence.sh
> TBLSPACE_STATS 1>
> # System Archive Tape Device
>
> # Tape device path
> TAPEDEV /usr/local/informix/tmp/tape.log
> TAPEBLK 16 # Tape block size (Kbytes)
> TAPESIZE 10240 # Maximum amount of data to put on tape (Kbytes)>
> # Log Archive Tape Device
>
> # Log tape device path
> LTAPEDEV /usr/local/informix/tmp/ltape.log
> 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 1 # Unique id corresponding to a Dynamic Server
> # instance
> DBSERVERNAME yacc2svr # Name of default database server
> DBSERVERALIASES # List of alternate dbservernames
> 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 for multi-processor
> NUMCPUVPS 1 # 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 2000 # Maximum number of locks
> BUFFERS 200 # 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 6 # Maximum number of logical log files
> CLEANERS 1 # Number of buffer cleaner processes
> SHMBASE 0xa000000 # 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 mark percentage
> LTXEHWM 60 # Long transaction high water mark (exclusive)
> TXTIMEOUT 0x12c # Transaction timeout (in sec)
> STACKSIZE 32 # Stack size (Kbytes)>
> # System Page Size
> # BUFFSIZE - Dynamic Server no longer supports this configuration parameter.
> # To determine the page size used by Dynamic Server 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 worker threads
> 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
>
> # 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)>
> # Backup/Restore va