Rootdbs gets filled

Rootdbs gets filled Dear All, I need ur help. I have IDS 9.3 on sun solaris 8. My Informix server is going for a toss. I am attaching my onconfig file for ur ref. My users are connecting thru java. They are opening a lot of connections, when i do onstat -g ses, i get around 2000 sessions as a result of which the rootdbs gets filled, i have added 4 new chunks, but still it gets filled. We cannot continue with the work. I am stuck up, not sure what size to increase. What shared memory parameters need to be set. By default informix allocates additional shared memory. Please advice. Best Regards, lloyd My IDS server is DB1 SQLHOSTS File DB1 onipcshm 10.1.32.66 sqlexec1 DB1_test ontlitcp 10.1.32.66 sqlexec1 Onconfig file --- #************************************************************************** # # INFORMIX SOFTWARE, INC. # # Title: onconfig.std # Description: Informix Dynamic Server Configuration Parameters # #************************************************************************** # Root Dbspace Configuration ROOTNAME rootdbs # Root dbspace name ROOTPATH /export/home/informix/nb4/nb4_rootdbs# Path for device containing root dbspace ROOTOFFSET 0 # Offset of root dbspace into device (Kbytes) ROOTSIZE 30000 # 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 4000 # Physical log file size (Kbytes) # Logical Log Configuration LOGFILES 11 # Number of logical log files LOGSIZE 2000 # Logical log size (Kbytes) # Diagnostics MSGPATH /export/home/informix/nb4/online.log # System message log file path CONSOLE /dev/console # System console message path ALARMPROGRAM /export/home/informix/nb4/log_full.sh # Alarm program path TBLSPACE_STATS 1 # Maintain tblspace statistics # System Archive Tape Device TAPEDEV /export/home/informix/nb4/nb4_backup # Tape device path TAPEBLK 16 # Tape block size (Kbytes) TAPESIZE 40960 # 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 staging area # System Configuration SERVERNUM 1 # Unique id corresponding to a OnLine instance DBSERVERNAME netbooker # Name of default database server DBSERVERALIASES # List of alternate dbservernames NETTYPE ipcshm,1,10,NET # Configure poll thread(s) for nettype NETTYPE tlitcp,1,10,CPU # 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 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 200000 # 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 0xa000000 # Shared memory base address SHMVIRTSIZE 8192 # 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 TXTIMEOUT 0x12c # Transaction timeout (in sec) STACKSIZE 32 # Stack size (Kbytes) # Dynamic Logging # DYNAMIC_LOGS: # 2 : server automatically add a new logical log when necessary. (ON) # 1 : notify DBA to add new logical logs when necessary. (ON) # 0 : cannot add logical log on the fly. (OFF) # # When dynamic logging is on, we can have higher values for LTXHWM/LTXEHWM, # because the server can add new logical logs during long transaction rollback. # However, to limit the number of new logical logs being added, LTXHWM/LTXEHWM # can be set to smaller values. # # If dynamic logging is off, LTXHWM/LTXEHWM NEED to be set to smaller values # to avoid long transaction rollback hanging the server due to lack of logical # log space, i.e. 50/60 or lower. DYNAMIC_LOGS 2 LTXHWM 70 LTXEHWM 80 # 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 worker threads ON_RECVRY_THREADS 1 # Default number of online worker threads # Data Replication Variables DRINTERVAL 30 # DR max time between DR buffer flushes (in sec) DRTIMEOUT 30 # DR network timeout (in sec) DRLOSTFOUND /export/home/informix/nb4/dr.lostfound # DR lost+found file path # CDR Variables 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_NIFCOMPRESS 0 # Link level compression (-1 never, 0 none, 9 max) CDR_SERIAL 0,0 # Serial Column Sequence CDR_DBSPACE # dbspace for syscdr database CDR_QHDR_DBSPACE # CDR queue dbspace (default same as catalog) CDR_QDATA_SBSPACE # CDR queue smart blob space CDR_QDATA_SBFLAGS 0 # Log/no-log (default no log) # Backup/Restore variables BAR_ACT_LOG /usr/informix/bar_act.log # ON-Bar Log file - not in /tmp please BAR_DEBUG_LOG /usr/informix/bar_dbug.log # ON-Bar Debug Log - not in /tmp please BAR_MAX_BACKUP 0 BAR_RETRY 1 BAR_NB_XPORT_COUNT 10 BAR_XFER_BUF_SIZE 31 RESTARTABLE_RESTORE on BAR_PROGRESS_FREQ 0 # Informix Storage Manager variables ISM_DATA_POOL ISMData 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: # 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 tempdbs # Default temp dbspaces # DUMP*: # The following parameters control the type of diagnos

Hi bro, rootdbs seems pretty small: ROOTSIZE 30000 # Size of root dbspace (Kbytes) - Consider a bigger rootsize (256M, 512M, your milleage may vary) - I suppose you've set up a temp dbspace, right? its almost a basic rule for an installation. - move logical logs to its own dbspace - if possible, check buffers, nettype and shmem values for better performance hope it helps

Dear Lloyd, The number of sessions will not affect the space in rootdbs - at least not directly. To check why rootdbs gets filled, you will have to find out , what exactly is stored in rootdbs. oncheck -pe may give you a hint. You may want to move application data and indexes to a different dbspace. For 2000 sessions SHMVIRTSIZE is too low, that's why IDS allocates dynamically more memory. To determine a reasonable value for SHMVIRTSIZE check the total size of your virtual shared memory (onstat -g seg) when the system has reached a state where no more memory gets allocated. Use this value for SHMVIRTSIZE (! Size in the output of onstat -g seg will be in bytes, ONCONFIG needs value entered in KB) Regards Tilman -- Tilman Model-Bosch IBM Data Managment Solutions, Informix Advanced Support c\\\\o SAP AG TECHDEV 05 Neurrotstr.16 69190 Walldorf "LLOYD SERRAO" <lloyd_s@rediffma To: ids@iiug.org il.com> cc: Sent by: Subject: Rootdbs gets filled [2594] forum.subscriber@ iiug.org 03/02/2004 12:52 PM Rootdbs gets filled Dear All, I need ur help. I have IDS 9.3 on sun solaris 8. My Informix server is going for a toss. I am attaching my onconfig file for ur ref. My users are connecting thru java. They are opening a lot of connections, when i do onstat -g ses, i get around 2000 sessions as a result of which the rootdbsgets filled, i have added 4 new chunks, but still it gets filled. We cannot continue with the work. I am stuck up, not sure what size to increase. What shared memory parameters need to be set. By default informix allocates additional shared memory. Please advice. Best Regards, lloyd My IDS server is DB1 SQLHOSTS File DB1 onipcshm 10.1.32.66 sqlexec1 DB1_test ontlitcp 10.1.32.66 sqlexec1 Onconfig file --- #************************************************************************** # # INFORMIX SOFTWARE, INC. # # Title: onconfig.std # Description: Informix Dynamic Server Configuration Parameters # #************************************************************************** # Root Dbspace Configuration ROOTNAME rootdbs # Root dbspace name ROOTPATH /export/home/informix/nb4/nb4_rootdbs# Path for device containing root dbspace ROOTOFFSET 0 # Offset of root dbspace into device (Kbytes) ROOTSIZE 30000 # 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 4000 # Physical log file size (Kbytes) # Logical Log Configuration LOGFILES 11 # Number of logical log files LOGSIZE 2000 # Logical log size (Kbytes) # Diagnostics MSGPATH /export/home/informix/nb4/online.log # System message log file path CONSOLE /dev/console # System console message path ALARMPROGRAM /export/home/informix/nb4/log_full.sh # Alarm program path TBLSPACE_STATS 1 # Maintain tblspace statistics # System Archive Tape Device TAPEDEV /export/home/informix/nb4/nb4_backup # Tape device path TAPEBLK 16 # Tape block size (Kbytes) TAPESIZE 40960 # 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 staging area # System Configuration SERVERNUM 1 # Unique id corresponding to a OnLineinstance DBSERVERNAME netbooker # Name of default database server DBSERVERALIASES # List of alternate dbservernames NETTYPE ipcshm,1,10,NET # Configure poll thread(s) for nettype NETTYPE tlitcp,1,10,CPU # 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 vps toone NOAGE 0 # Process aging AFF_SPROC 0 # Affinity start processor AFF_NPROCS 0 # Affinity number of processors # Shared Memory Parameters LOCKS 200000 # 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 0xa000000 # Shared memory base address SHMVIRTSIZE 8192 # 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 TXTIMEOUT 0x12c # Transaction timeout (in sec) STACKSIZE 32 # Stack size (Kbytes) # Dynamic Logging # DYNAMIC_LOGS: # 2 : server automatically add a new logical log when necessary. (ON) # 1 : notify DBA to add new logical logs when necessary. (ON) # 0 : cannot add logical log on the fly. (OFF) # # When dynamic logging is on, we can have higher values for LTXHWM/LTXEHWM, # because the server can add new logical logs during long transaction rollback. # However, to limit the number of new logical logs being added, LTXHWM/LTXEHWM # can be set to smaller values. # # If dynamic logging is off, LTXHWM/LTXEHWM NEED to be set to smaller values # to avoid long transaction rollback hanging the server due to lack of logical # log space, i.e. 50/60 or lower. DYNAMIC_LOGS 2 LTXHWM 70 LTXEHWM 80 # 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 DRINTERVAL 30 # DR max time between DR buffer flushes (in sec) DRTIMEOUT 30 # DR network timeout (in sec) DRLOSTFOUND /export/home/informix/nb4/dr.lostfound # DR lost+found filepath # CDR Variables 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_NIFCOMPRESS 0 # Link level compression (-1 never, 0 none, 9 max) CDR_SERIAL 0,0 # Serial Column Sequence CDR_DBSPACE # dbspace for syscdr database CDR_QHDR_DBSP

Dear Esteban, Tilman Thanks a lot for your feedback, i will work on it. Best Regards, Lloyd

Hi lloyd, One pollthread can handle about 200 connections. In that case u can increase the value of poll thread and number of connection in the NETTYPE field. Also one more thing I have noticed in ur onconfig file that tcpip connection is configured to run in CPU VP, configure it to run on NET VP and shared memory connection on CPU VP. Regards, Shailesh M "LLOYD SERRAO" <lloyd_s@rediffma To: ids@iiug.org il.com> cc: (bcc: Shailesh More/DAKC/RIL) Sent by: Subject: Rootdbs gets filled [2594] forum.subscriber@ iiug.org 03/02/2004 05:22 PM Rootdbs gets filled Dear All, I need ur help. I have IDS 9.3 on sun solaris 8. My Informix server is going for a toss. I am attaching my onconfig file for ur ref. My users are connecting thru java. They are opening a lot of connections, when i do onstat -g ses, i get around 2000 sessions as a result of which the rootdbsgets filled, i have added 4 new chunks, but still it gets filled. We cannot continue with the work. I am stuck up, not sure what size to increase. What shared memory parameters need to be set. By default informix allocates additional shared memory. Please advice. Best Regards, lloyd My IDS server is DB1 SQLHOSTS File DB1 onipcshm 10.1.32.66 sqlexec1 DB1_test ontlitcp 10.1.32.66 sqlexec1 Onconfig file --- #************************************************************************** # # INFORMIX SOFTWARE, INC. # # Title: onconfig.std # Description: Informix Dynamic Server Configuration Parameters # #************************************************************************** # Root Dbspace Configuration ROOTNAME rootdbs # Root dbspace name ROOTPATH /export/home/informix/nb4/nb4_rootdbs# Path for device containing root dbspace ROOTOFFSET 0 # Offset of root dbspace into device (Kbytes) ROOTSIZE 30000 # 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 4000 # Physical log file size (Kbytes) # Logical Log Configuration LOGFILES 11 # Number of logical log files LOGSIZE 2000 # Logical log size (Kbytes) # Diagnostics MSGPATH /export/home/informix/nb4/online.log # System message log file path CONSOLE /dev/console # System console message path ALARMPROGRAM /export/home/informix/nb4/log_full.sh # Alarm program path TBLSPACE_STATS 1 # Maintain tblspace statistics # System Archive Tape Device TAPEDEV /export/home/informix/nb4/nb4_backup # Tape device path TAPEBLK 16 # Tape block size (Kbytes) TAPESIZE 40960 # 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 staging area # System Configuration SERVERNUM 1 # Unique id corresponding to a OnLineinstance DBSERVERNAME netbooker # Name of default database server DBSERVERALIASES # List of alternate dbservernames NETTYPE ipcshm,1,10,NET # Configure poll thread(s) for nettype NETTYPE tlitcp,1,10,CPU # 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 vps toone NOAGE 0 # Process aging AFF_SPROC 0 # Affinity start processor AFF_NPROCS 0 # Affinity number of processors # Shared Memory Parameters LOCKS 200000 # 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 0xa000000 # Shared memory base address SHMVIRTSIZE 8192 # 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 TXTIMEOUT 0x12c # Transaction timeout (in sec) STACKSIZE 32 # Stack size (Kbytes) # Dynamic Logging # DYNAMIC_LOGS: # 2 : server automatically add a new logical log when necessary. (ON) # 1 : notify DBA to add new logical logs when necessary. (ON) # 0 : cannot add logical log on the fly. (OFF) # # When dynamic logging is on, we can have higher values for LTXHWM/LTXEHWM, # because the server can add new logical logs during long transaction rollback. # However, to limit the number of new logical logs being added, LTXHWM/LTXEHWM # can be set to smaller values. # # If dynamic logging is off, LTXHWM/LTXEHWM NEED to be set to smaller values # to avoid long transaction rollback hanging the server due to lack of logical # log space, i.e. 50/60 or lower. DYNAMIC_LOGS 2 LTXHWM 70 LTXEHWM 80 # 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 DRINTERVAL 30 # DR max time between DR buffer flushes (in sec) DRTIMEOUT 30 # DR network timeout (in sec) DRLOSTFOUND /export/home/informix/nb4/dr.lostfound # DR lost+found filepath # CDR Variables 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_NIFCOMPRESS 0 # Link level compression (-1 never, 0 none, 9 max) CDR_SERIAL 0,0 # Serial Column Sequence CDR_DBSPACE # dbspace for syscdr database CDR_QHDR_DBSPACE # CDR queue dbspace (default same as catalog) CDR_QDATA_SBSPACE # CDR queue smart blob space CDR_QDATA_SBFLAGS 0 # Log/no-log (default no log) # Backup/Restore variables BAR_ACT_LOG /usr/informix/bar_act.log # ON-Bar Log file - not in /tmp please BAR_DEBUG_LOG /usr/informix/bar_dbug.log # ON-Bar Debug Log - not in /tmp please BAR_MAX_BACKUP 0 BAR_RETRY 1 BAR_NB_XPORT_COUNT 10 BAR_XFER_BUF_SIZE 31 RESTARTABLE_RESTORE on BAR_PROGRESS_FREQ 0 # Informix Storage Manager vari