IDS Forum

Re: Desperate, sudden cessation of unsupported database

Posted By: John_Caron@mab.uscourts.gov
Date:

We went through hell and then some with the mtex.c assertion failure. I
see you are on 7.31.... we recently patched
to 7.31.UC4x4 we received from Informix. It might be a coincidence but
since we patched we haven't had that assertion
failure.






"Zanne Fager...."
<zfagerst@au1.ibm
.com> To
Sent by: ids@iiug.org
forum.subscriber@ cc
iiug.org
Subject
Desperate, sudden cessation of
02/25/2004 08:06 unsupported database [2574]
PM














Hi informix community


We have a data base that has stopped with the errors below, the only thing
that has changed is a new CPU has been added bringing the total to 13 .
The first solution proposed has been to quickly migrate to another brand
of database. So I'd hate to see an Informix database go.

Any help would by highly appreciated

Cheers
Zanne Fagerstrom
IBMGS (Australia)

SunOS csun7621 5.6 Generic_105181-35 sun4u sparc
SUNW,Ultra-Enterprise-10000
Informix 7.31


*********************************************************************************

-25578 Network driver cannot disconnect from the network.

A system call has failed. See the UNIX system administrator for
assistance.
*********************************************************************************


10:49:46 Logical Recovery Complete.
0 Committed, 0 Rolled Back, 0 Open, 0 Bad Locks

10:49:47 Dataskip is now OFF for all dbspaces
10:49:47 On-Line Mode
10:49:47 Affinitied VP 3 to phys proc 37
10:49:47 Affinitied VP 4 to phys proc 38
10:49:47 Affinitied VP 7 to phys proc 41
10:49:47 Affinitied VP 8 to phys proc 42
10:49:47 Affinitied VP 9 to phys proc 43
10:49:47 Affinitied VP 1 to phys proc 36
10:49:47 Affinitied VP 5 to phys proc 39
10:49:47 Affinitied VP 6 to phys proc 40
10:49:47 Checkpoint Completed: duration was 0 seconds.
11:10:25 Assert Failed: No Exception Handler
11:10:25 Informix Dynamic Server Version 7.31.UC3X1
11:10:25 Who: Session(30, ccm_root@csun7621, 14554, 179292152)
Thread(67, sqlexec, aad58b4, 8)
File: mtex.c Line: 446
11:10:25 Results: Exception Caught. Type: MT_EX_OS, Context: mem
11:10:25 Action: Please notify Informix Technical Support.
11:10:29 See Also: /tmp/af.42b3970, shmem.42b3970.0
11:10:30 mtex.c, line 446, thread 67, proc id 12355, No Exception Handler.
11:10:30 PANIC: Attempting to bring system down

#**************************************************************************
#
# INFORMIX SOFTWARE, INC. & Continuus Software Corporation
#
# Title: onconfig.std
# Description: INFORMIX-OnLine Configuration Parameters
# C/CM Server: rsun7351
#
#**************************************************************************

# Root Dbspace Configuration

ROOTNAME rootdbs # Root dbspace name
ROOTPATH /informix_db/rsun7351_root.dbs
# Path for device containing root dbspace
ROOTOFFSET 0 # Offset of root dbspace into device
(Kbytes)
ROOTSIZE 115000 # Size of root dbspace (Kbytes)

# Disk Mirroring Configuration

MIRROR 0 # Mirroring flag (Yes = 1, No = 0)
MIRRORPATH # Path for device containing root dbspace
mirror
MIRROROFFSET 0 # Offset into mirror device (Kbytes)

# Physical Log Configuration

PHYSDBS rootdbs # Name of dbspace that contains physical
log
PHYSFILE 4096 # Physical log file size (Kbytes)

# Logical Log Configuration

LOGFILES 28 # Number of logical log files
LOGSIZE 512 # Size of each logical log file (Kbytes)

# Message Files

MSGPATH /opt/ccm/informix/log/rsun7351.log # OnLine message log
pathname
CONSOLE /opt/ccm/informix/log/rsun7351.msg
# System console message pathname

# Archive Tape Device

TAPEDEV /opt/ccm/informix/etc/rsun7351.tapedev
# Archive tape device pathname
TAPEBLK 16 # Archive tape block size (Kbytes)
TAPESIZE 10240 # Max amount of data to put on tape
(Kbytes)

# Logical Log Backup Tape Device

LTAPEDEV /dev/null # Logical log tape device pathname
LTAPEBLK 16 # Logical log tape block size (Kbytes)
LTAPESIZE 10240 # Max amount of data to put on log tape
(Kbytes)

# Optical

STAGEBLOB # INFORMIX-OnLine/Optical staging area

# System Configuration

SERVERNUM 1 # Unique id associated with this OnLine
instance
DBSERVERNAME rsun7351 # Unique name of this OnLine instance
DBSERVERALIASES rsun7351_net # List of alternate dbservernames
NETTYPE ipcshm,8,5,CPU # Configure poll thread(s) for nettype
NETTYPE tlitcp,1,44,NET # Configure poll thread(s) for nettype
DEADLOCK_TIMEOUT 60 # Max time to wait for lock in distributed
env.
RESIDENT 0 # Forced residency flag (Yes = 1, No = 0)

MULTIPROCESSOR 1 # 0 for single-processor, 1 for
multi-processor
NUMCPUVPS 8 # 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 1 # Affinity start processor
AFF_NPROCS 8 # Affinity number of processors

# Shared Memory Parameters

LOCKS 60000 # Maximum number of locks
BUFFERS 2560 # Maximum number of shared memory buffers
NUMAIOVPS # Number of IO vps
PHYSBUFF 64 # Size of physical log buffers (Kbytes)
LOGBUFF 512 # Size of logical log buffers (Kbytes)
LOGSMAX 32 # Maximum number of logical log files
CLEANERS 1 # Number of page-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 # Checkpoint interval (in seconds)

LRUS 8 # Number of LRU queues
LRU_MAX_DIRTY 60 # LRU modified begin-cleaning limit
(percent)
LRU_MIN_DIRTY 50 # LRU modified end-cleaning limit (percent)
LTXHWM 50 # Long TX high-water mark (percent)
LTXEHWM 60 # Long TX exclusive high-water mark
(percent)
TXTIMEOUT 0x12c # Transaction timeout (in seconds)
STACKSIZE 32 # Stack size (Kbytes)

# 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'.
# Machine- and Product-Specific Parameters

# 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 /opt/ccm/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 variables
BAR_ACT_LOG /tmp/bar_act.log
BAR_MAX_BACKUP 0
BAR_RETRY 1
BAR_NB_XPORT_COUNT 10
BAR_XFER_BUF_SIZE 31

# Read Ahead Variables
RA_PAGES # Number of pages to attempt to read ahead
RA_THRESHOLD # Number of pages left before next group

# 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

ONDBSPACEDOWN 2 # Dbspace down option: 0 = CONTINUE, 1 =
ABORT, 2 = WAIT
LBU_PRESERVE 0 # Preserve last log for log backup
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

ALARMPROGRAM /opt/ccm/informix/etc/no_log.sh # Alarm program path
SYSALARMPROGRAM /opt/ccm/informix/etc/evidence.sh # System Alarm program
path
TBLSPACE_STATS 1
CDR_LOGDELTA 30 # % of log space allowed in queue memory
CDR_NUMCONNECT 16 # Expected connections per server
CDR_NIFRETRY 300 # Connection retry (seconds)
CDR_NIFCOMPRESS 0 # Link level compression (-1 never, 0 none,
9 max)
ISM_DATA_POOL ISMData # If the data pool name is changed, be sure
to
ISM_LOG_POOL ISMLogs
DBSPACETEMP temp # Default temp dbspaces
OPT_GOAL -1
DIRECTIVES 1
RESTARTABLE_RESTORE off
# 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.


# Continuus defined parameters
ARCHIVEDEV /dev/null # Actual archive device
USERS 44 # Number of users









Zanne Fagerstrom

Messages In This Thread

• Desperate, sudden cessation of unsupported database
  Zanne Fagerstrom -- Wednesday, 25 February 2004, at 8:06 p.m.
  • RE: Desperate, sudden cessation of unsupported database
    Alexey Sonkin -- Thursday, 26 February 2004, at 11:40 a.m.
  • Re: Desperate, sudden cessation of unsupported database
    John_Caron@mab.uscourts.gov -- Thursday, 26 February 2004, at 1:51 p.m.

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