Quman said:
>
> I am doing dbimport with IDS 10UC5 on AIX 5.3.
>
> Watched,
>
> large number(100,000+) of dirty pages were SLOWLY written to disk.
>
> piece of online log,
>
> 20:08:47 Maximum server connections 0
> 20:08:47 On-Line Mode
> 20:15:15 Fuzzy Checkpoint Completed: duration was 56 seconds, 1
> buffers not flushed.
> 20:15:15 Checkpoint loguniq 12, logpos 0xcb7050, timestamp: 0x54d481b
>
> 20:15:15 Maximum server connections 1
> 21:00:24 Fuzzy Checkpoint Completed: duration was 2409 seconds, 7
> buffers not flushed.
> 21:00:24 Checkpoint loguniq 12, logpos 0xccb0b0, timestamp: 0x5eba28f
>
> 21:00:24 Maximum server connections 1
> 21:01:54 Checkpoint Completed: duration was 61 seconds.
> 21:01:54 Checkpoint loguniq 12, logpos 0xd21018, timestamp: 0x601652a
>
> 21:01:54 Maximum server connections 1
> 21:01:56 IBM Informix Dynamic Server Stopped.
>
> See the above LONG check point!
>
> config file attached.
>
> Any suggestions are deeply appreciated!
Run the dbimport with logging disabled.
Given the large number of pages you are flushing, why do you think the
checkpoint is long?
> Thanks
> Quman
>
> # Root Dbspace Configuration
>
> ROOTNAME rootdbs # Root dbspace name
> ROOTPATH /usr/informix/dev-links/int1/DBROOT_INT1 # Path for
> device containing root dbspace
> ROOTOFFSET 4 # Offset of root dbspace into device (Kbytes)
> ROOTSIZE 512000 # Size of root dbspace (Kbytes)
>
> # Disk Mirroring Configuration Parameters
>
> MIRROR 1 # Mirroring flag (Yes = 1, No = 0)
> MIRRORPATH /usr/informix/dev-links/int1/MDBROOT_INT1 # Path
> for device containing mirrored root
> MIRROROFFSET 4 # Offset into mirrored device (Kbytes)
>
> # Physical Log Configuration
>
> PHYSDBS dbphylog # Location (dbspace) of physical log
> PHYSFILE 890000 # Physical log file size (Kbytes)
> #PHYSDBS rootdbs # Location (dbspace) of physical log
> #PHYSFILE 20000 # Physical log file size (Kbytes)
>
> # Logical Log Configuration
>
> LOGFILES 140 # Number of logical log files
> #LOGSIZE 20000 # Logical log size (Kbytes)
> LOGSIZE 160000 # Logical log size (Kbytes)
> LOG_BACKUP_MODE MANUAL # Logical log backup mode (MANUAL, CONT)
>
> # Tablespace Tablespace Configuration in Root Dbspace
>
> TBLTBLFIRST 0 # First extent size (Kbytes) (0 = default)
> TBLTBLNEXT 0 # Next extent size (Kbytes) (0 = default)
>
> # Security
> # DBCREATE_PERMISSION:
> # By default any user can create a database. Uncomment DBCREATE_PERMISSON
> to
> # limit database creation to a specific user. Add a new
> DBCREATE_PERMISSION
> # line for each permitted user.
>
> DBCREATE_PERMISSION informix
>
> # DB_LIBRARY_PATH:
> # When loading a (C or C++) shared object (for a UDR or UDT), IDS checks
> that
> # the user-specified path starts with one of the directory prefixes listed
> in
> # the comma-separated list of prefixes in DB_LIBRARY_PATH. The string
> # "$INFORMIXDIR/extend" must be included in DB_LIBRARY_PATH in order for
> # extensibility and IBM supplied blades to work correctly.
>
> DB_LIBRARY_PATH $INFORMIXDIR/extend
>
> # IFX_EXTEND_ROLE:
> # 0 (or off) => Disable use of EXTEND role to control who can register
> # external routines.
> # 1 (or on) => Enable use of EXTEND role to control who can register
> # external routines. This is the default behaviour.
> #
> IFX_EXTEND_ROLE 1 # To control the usage of EXTEND role.
>
> # Diagnostics
>
> MSGPATH /dbbackup/online_log/online_int1.log # System message
> log file path
> CONSOLE /dbbackup/online_log/console # System console message path
>
> # To automatically backup logical logs, edit alarmprogram.sh and set
> # BACKUPLOGS=Y
> ALARMPROGRAM /usr/informix/etc/alarmprogram.sh # Alarm program path
> ALRM_ALL_EVENTS 0 # Triggers ALARMPROGRAM for any event occur
> TBLSPACE_STATS 1 # Maintain tblspace statistics
>
> # System Archive Tape Device
>
> TAPEDEV /dbbackup/ontape/ontape_int1 # Tape device path
> TAPEBLK 32 # Tape block size (Kbytes)
> #TAPESIZE 10240 # Maximum amount of data to put on tape (Kbytes)
> TAPESIZE 0 # Maximum amount of data to put on tape (Kbytes)
>
> # Log Archive Tape Device
>
> LTAPEDEV /dev/null # Log tape device path
> #LTAPEDEV /dbbackup/logbackup/logbackup_int1 # Log tape device path
> LTAPEBLK 32 # Log tape block size (Kbytes)
> #LTAPESIZE 10240 # Max amount of data to put on log tape (Kbytes)
> LTAPESIZE 0 # Max amount of data to put on log tape (Kbytes)
>
> # Optical
>
> STAGEBLOB # Informix Dynamic Server staging area
>
> # System Configuration
>
> SERVERNUM 10 # Unique id corresponding to a OnLine instance
> DBSERVERNAME osdint1_tcp # Name of default database server
> DBSERVERALIASES osdint1 # List of alternate dbservernames
> #NETTYPE # Configure poll thread(s) for nettype
> NETTYPE ipcshm,1,50,CPU # Configure poll thread(s) for nettype
> NETTYPE soctcp,2,100,NET # 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
> SINGLE_CPU_VP 0 # If non-zero, limit number of cpu vps to one
>
> # Shared Memory Parameters
>
> LOCKS 200000 # Maximum number of locks
> PHYSBUFF 32 # Physical log buffer size (Kbytes)
> LOGBUFF 32 # Logical log buffer size (Kbytes)
> CLEANERS 32 # Number of buffer cleaner processes
> SHMBASE 0x40000000L # Shared memory base address
> SHMVIRTSIZE 307200 # initial virtual shared memory segment size
> SHMADD 32768 # Size of new shared memory segments (Kbytes)
> EXTSHMADD 8192 # Size of new extension shared memory
> segments (Kbytes)
> SHMTOTAL 0 # Total shared memory (Kbytes). 0=>unlimited
> CKPTINTVL 300 # Check point interval (in sec)
> TXTIMEOUT 300 # Transaction timeout (in sec)
> STACKSIZE 64
>
> # 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.
> #
> # In case of system configured with CDR, the difference between LTXHWM and
> # LTXEHWM should be atleast 30% so that we could minimize log overrun
> issue.
>
> DYNAMIC_LOGS 2
> LTXHWM 30
> LTXEHWM 60
>
> # 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
> # 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
> DRIDXAUTO 0 # DR automatic index repair. 0=off, 1=on
>
> # 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 10,1 # Serial Column Sequence
> CDR_DBSPACE # dbspace for syscdr database
> CDR_QHDR_DBSPACE dberdata # CDR queue dbspace (default
> same as catalog)
> CDR_QDATA_SBSPACE dbersbdata # List of CDR queue smart blob spaces
>
> # CDR_MAX_DYNAMIC_LOGS
> # -1 => unlimited
> # 0 => disable dynamic log addition
> # >0 => limit the no. of dynamic log additions with the specified value.
> # Max dynamic log requests that CDR can make within one server session.
>
> CDR_MAX_DYNAMIC_LOGS 0 # Dynamic log addition disabled by default
>
> # 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 20
> 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 # 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 /usr/informix/tmp # Preserve diagnostics in this directory
> 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
> DS_NONPDQ_QUERY_MEM 128 # Non PDQ query memory (Kbytes)
> DATASKIP # 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 0 # 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 dbsbdata00 # 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 dbsbdata01 # 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 /usr/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)
>
> #Create Index Online Shared Memory usage limitation
> ONLIDX_MAXMEM 5120 # Per pool per index (Kbytes)
>
> #Timeout for client connection request
> LISTEN_TIMEOUT 10 # Timeout (in Seconds)
>
> #Following are the deprecated configuration parameters, instead of these
> #use BUFFERPOOL configuration parameter
> #BUFFERS, LRUS, LRU_MIN_DIRTY, LRU_MAX_DIRTY
>
> IFX_FOLDVIEW 0 # fold multiple tables or union all view with ansi joins
> #
> # 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
> #VPCLASS cpu,num=6,aff=1-6 # CPUVPs configuration
> VPCLASS cpu,num=4 # CPUVPs configuration
> VPCLASS aio,num=2 # AIOVPs configuration , it only used
> by cooked chunk
>
> JVPJAVAHOME $INFORMIXDIR/extend/krakatoa/jre # JRE
> installation root directory
> JVPHOME $INFORMIXDIR/extend/krakatoa # Krakatoa installation directory
>
> JVPPROPFILE $INFORMIXDIR/extend/krakatoa/.jvpprops # JVP property file
> JVPLOGFILE $INFORMIXDIR/jvp.log # JVP log file.
>
> JDKVERSION 1.3 # JDK version supported by this server
>
> # The path to the JRE libraries relative to JVPJAVAHOME
> JVPJAVALIB /bin
>
> # The JRE libraries to use for the Java VM
>
> JVPJAVAVM hpi:jvm: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
> $INFORMIXDIR/extend/krakatoa/krakatoa.jar:/usr/informix/extend/krakatoa/jdbc.jar
>
> # The following parameters are related to the buffer pool
> BUFFERPOOL
> default,buffers=400000,lrus=64,lru_min_dirty=20.000000,lru_max_dirty=40.000000
> BUFFERPOOL
> size=4K,buffers=400000,lrus=64,lru_min_dirty=20.000000,lru_max_dirty=40.000000
>
>
> *******************************************************************************
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>
>
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Bye now,
Obnoxio
"... no bill is required as no value was provided."
-- Christine Normile
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