IDS Forum

Re: Rootdbs gets filled

Posted By: Shailesh.More@ril.com
Date:

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 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 diagnostics information
which
# is preserved when an unanticipated error condition (assertion failure)
occurs
# during OnLine operations.
# For DUMPSHMEM, DUMPGCORE and DUMPCORE 1 means Yes, 0 means No.

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 dumps
for
# a single user's session

FILLFACTOR 90 # Fill factor for building indexes

# method for OnLine to use when determining current time
USEOSTIME 0 # 0: use internal time(fast), 1: get time
from OS(slow)

# Parallel Database Queries (pdq)
MAX_PDQPRIORITY 100 # Maximum allowed pdqpriority
DS_MAX_QUERIES # Maximum number of decision support
queries
DS_TOTAL_MEMORY # Decision support memory (Kbytes)
DS_MAX_SCANS 1048576 # Maximum number of decision support scans

DATASKIP off # List of dbspaces to skip

# OPTCOMPIND
# 0 => Nested loop joins will be preferred (where
# possible) over sortmerge joins and hash joins.
# 1 => If the transaction isolation mode is not
# "repeatable read", optimizer behaves as in (2)
# below. Otherwise it behaves as in (0) above.
# 2 => Use costs regardless of the transaction isolation
# mode. Nested loop joins are not necessarily
# preferred. Optimizer bases its decision purely
# on costs.
OPTCOMPIND 2 # To hint the optimizer

DIRECTIVES 1 # Optimizer DIRECTIVES ON (1/Default) or
OFF (0)

ONDBSPACEDOWN 2 # Dbspace down option: 0 = CONTINUE, 1 =
ABORT, 2 = WAIT
OPCACHEMAX 0 # Maximum optical cache size (Kbytes)

# HETERO_COMMIT (Gateway participation in distributed transactions)
# 1 => Heterogeneous Commit is enabled
# 0 (or any other value) => Heterogeneous Commit is disabled
HETERO_COMMIT 0

SBSPACENAME nb4_sbspace # Default smartblob space name -
this is where blobs
# go if no sbspace is specified when the
smartblob is
# created. It is also used by some
datablades as
# the location to put their smartblobs.
SYSSBSPACENAME # Default smartblob space for use by the
Informix
# Server. This is used primarily for
Informix Server
# system statistics collection.

BLOCKTIMEOUT 3600 # Default timeout for system block
SYSALARMPROGRAM /export/home/informix/etc/evidence.sh
# System Alarm program path

# Optimization goal: -1 = ALL_ROWS(Default), 0 = FIRST_ROWS
OPT_GOAL -1

ALLOW_NEWLINE 0 # embedded newlines(Yes = 1, No = 0 or
anything but 1)

#
# The following are default settings for enabling Java in the database.
# Replace all occurrences of /usr/informix with the value of $INFORMIXDIR.

#VPCLASS jvp,num=1 # Number of JVPs to start with

JVPJAVAHOME /usr/informix/extend/krakatoa/jre/
# JRE installation root directory
JVPHOME /usr/informix/extend/krakatoa # Krakatoa installation
directory

JVPPROPFILE /usr/informix/extend/krakatoa/.jvpprops # JVP property file

JDKVERSION 1.3 # JDK version supported by this server

# The path to the JRE libraries relative to JVPJAVAHOME
JVPJAVALIB /lib/sparc/

# The JRE libraries to use for the Java VM

JVPJAVAVM hpi:server:verify:java:net:zip:jpeg

# use JVPARGS to change Java VM configuration
#To display jni call
#JVPARGS -verbose:jni

# Classpath to use upon Java VM start-up (use _g version for debugging)

# JVPCLASSPATH
/usr/informix/extend/krakatoa/krakatoa_g.jar:/usr/informix/extend/krakatoa/jdbc_g.jar

JVPCLASSPATH
/usr/informix/extend/krakatoa/krakatoa.jar:/usr/informix/extend/krakatoa/jdbc.jar

Messages In This Thread

• Rootdbs gets filled
  LLOYD SERRAO -- Tuesday, 2 March 2004, at 6:52 a.m.
  • Re: Rootdbs gets filled
    ESTEBAN RIEZNIK -- Tuesday, 2 March 2004, at 4:37 p.m.
    • Re: Re: Rootdbs gets filled
      LLOYD SERRAO -- Wednesday, 3 March 2004, at 10:13 p.m.
  • Re: Rootdbs gets filled
    Tilman Model-Bosch -- Wednesday, 3 March 2004, at 3:44 a.m.
  • Re: Rootdbs gets filled
    Shailesh.More@ril.com -- Friday, 5 March 2004, at 2:41 a.m.

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