Join IIUG
 for   
 

Informix News
18 Nov 13 - ZDNet - Top 20 mobile skills in demand... Read
09 Sep 13 - telecompaper - Shaspa and Tatung have shown a new smart home platform at Ifa in Berlin. Powered by the IBM Informix software... Read
06 Sep 13 - IBM data magazine - Mission Accomplished - Miami, Florida will be the backdrop for the 2014 IIUG Informix Conference... Read
01 Feb 13 - IBM Data Magazine - Are your database backups safe? Lester Knutsen (IBM Champion) writes about database back up safety using "archecker"... Read
14 Nov 12 - IBM - IBM's Big Data For Smart Grid Goes Live In Texas... Read
3 Oct 12 - The Financial - IBM and TransWorks Collaborate to Help Louisiana-Pacific Corporation Achieve Supply Chain Efficiency... Read
28 Aug 12 - techCLOUD9 - Splunk kicks up a SaaS Storm... Read
10 Aug 12 - businessCLOUD9 - Is this the other half of Cloud monitoring?... Read
3 Aug 12 - IBM data management - Supercharging the data warehouse while keeping costs down IBM Informix Warehouse Accelerator (IWA) delivers superior performance for in-memory analytics processing... Read
2 Aug 12 - channelbiz - Oninit Group launches Pay Per Pulse cloud-based service... Read
28 May 12 - Bloor - David Norfolk on the recent Informix benchmark "pretty impressive results"... Read
23 May 12 - DBTA - Informix Genero: A Way to Modernize Informix 4GL Applications... Read
9 Apr 12 - Mastering Data Management - Upping the Informix Ante: Advanced Data Tools... Read
22 Mar 12 - developerWorks - Optimizing Informix database access... Read
14 Mar 12 - BernieSpang.com - International Informix User Group set to meet in San Diego... Read
1 Mar 12 - IBM Data Management - IIUG Heads West for 2012 - Get ready for sun and sand in San Diego... Read
1 Mar 12 - IBM Data Management - Running Informix on Solid-State Drives.Speed Up Database Access... Read
26 Feb 12 - BernieSpan.com - Better results, lower cost for a broad set of new IBM clients and partners... Read
24 Feb 12 - developerWorks - Informix Warehouse Accelerator: Continuous Acceleration during Data Refresh... Read
6 Feb 12 - PRLOG - Informix port delivers unlimited database scalability for popular SaaS application ... Read
2 Feb 12 - developerWorks - Loading data with the IBM Informix TimeSeries Plug-in for Data Studio... Read
1 Feb 12 - developerWorks - 100 Tech Tips, #47: Log-in to Fix Central... Read
13 Jan 12 - MC Press online - Informix Dynamic Server Entices New Users with Free Production Edition ... Read
11 Jan 12 - Computerworld - Ecologic Analytics and Landis+Gyr -- Suitors Decide to Tie the Knot... Read
9 Jan 12 - planetIDS.com - DNS impact on Informix / Impacto do DNS no Informix... Read
8 Sep 11 - TMCnet.com - IBM Offers Database Solution to Enable Smart Meter Data Capture... Read
1 Aug 11 - IBM Data Management Magazine - IIUG user view: Happy 10th anniversary to IBM and Informix... Read
8 Jul 11 - Database Trends and Applications - Managing Time Series Data with Informix... Read
31 May 11 - Smart Grid - The meter data management pitfall utilities are overlooking... Read
27 May 11 - IBM Data Management Magazine - IIUG user view: Big data, big time ( Series data, warehouse acceleration, and 4GLs )... Read
16 May 11 - Business Wire - HiT Software Announces DBMoto for Enterprise Integration, Adds Informix. Log-based Change Data Capture... Read
21 Mar 11 - Yahoo! Finance - IBM and Cable&Wireless Worldwide Announce UK Smart Energy Cloud... Read
14 Mar 11 - MarketWatch - Fuzzy Logix and IBM Unveil In-Database Analytics for IBM Informix... Read
11 Mar 11 - InvestorPlace - It's Time to Give IBM Props: How many tech stocks are up 53% since the dot-com boom?... Read
9 Mar 11 - DBTA - Database Administration and the Goal of Diminishing Downtime... Read
2 Feb 11 - DBTAs - Informix 11.7 Flexible Grid Provides a Different Way of Looking at Database Servers... Read
27 Jan 11 - exactsolutions - Exact to Add Informix Support to Database Replay, SQL Monitoring Solutions... Read
25 Jan 11 - PR Newswire - Bank of China in the UK Works With IBM to Become a Smarter, Greener Bank... Read
12 Oct 10 - Database Trends and Applications - Informix 11.7: The Beginning of the Next Decade of IBM Informix... Read
20 Sep 10 - planetIDS.com - ITG analyst paper: Cost/Benefit case for IBM Informix as compared to Microsoft SQL Server... Read
20 Jul 10 - IBM Announcements - IBM Informix Choice Edition V11.50 helps deploy low-cost scalable and reliable solutions for Apple Macintosh and Microsoft Windows... Read
20 Jul 10 - IBM Announcements - Software withdrawal: Elite Support for Informix Ultimate-C Edition... Read
24 May 10 - eWeek Europe - IBM Supplies Database Tech For EU Smart Grid... Read
23 May 10 - SiliconIndia - IBM's smart metering system allows wise use of energy... Read
21 May 10 - CNET - IBM to help people monitor energy use... Read
20 May 10 - ebiz - IBM Teams With Hildebrand To Bring Smart Metering To Homes Across Britain... Read
19 May 10 - The New Blog Times - Misurare il consumo energetico: DEHEMS è pronto... Read
19 May 10 - ZDNet - IBM software in your home? Pact enables five-city smart meter pilot in Europe... Read
17 March 10 - ZDNet (blog) David Morgenstern - TCO: New research finds Macs in the enterprise easier, cheaper to manage than... Read
17 March 2010 - Virtualization Review - ...key components of Big Blue's platform to the commercial cloud such as its WebSphere suite of application ser vers and its DB2 and Informix databases... Read
10 February 2010 - The Wall Street Journal - International Business Machines is expanding an initiative to win over students and professors on its products. How do they lure the college crowd?... Read

End of Support Dates
IDS 11.10 - 30 Sep 2012
Subscribe to notifications

IIUG on Facebook IIUG on Twitter

[ View Thread ] [ Post Response ] [ Return to Index ] [ Read Prev Msg ] [ Read Next Msg ]

IDS Forum

Re: Random Server Slowdown "Redone"

Posted By: Alexandre Marini
Date: Wednesday, 13 January 2010, at 11:16 a.m.

In Response To: Random Server Slowdown "Redone" (JAVIER HERNáNDEZ)

There are some usual things you could do for now:

1) calc your database ratios, I think there are several NETTYPE, BUFFERS
and even BTSCANNER options that could be optimized,
you could download Mr. Art script to automatically know these important
numbers!!! It´s on the download section of IIUG site.

Obs: How many cpu cores do you have?? Your vp cpu class is enough for
the applications ???

2) are you updating the database statistics regularly? Is it working fine???

Regards.

Alexandre Marini

Tecnologia da Informaçăo - DBA

SEFAZ-MS / SGI-UIMP / Sistemas IBM-Informix

IIUG Member

<http://www.iiug.org>

JAVIER HERNáNDEZ escreveu:
> Hi,
>
> In mid December I posted about a problem we have with an instance slowing down
> at random times/days. Since that we upgraded the instance to IDS 11.5 64-bit
> to better use the hardware assigned to Informix.
>
> Well, the problem has returned and neded assistance in solving the puzzle.
>
> At random days/time we experience slow downs in the responce of the instance,
> checking the processor utilization shows no problem 10% average (spikes of
> 100% util in 1 or 2 processor of 4)and there is plenty of available memory
> (the server has 8GB and IDS is consuming no more the 3GB), the most strange
> issue is that we are monitoring this server with OAT v2.26 and when the slow
> down occurs it can't connect, also, the production environment is using a mix
> of clients: Oracle Application server, a compiled .NET app using ODBC (8
> Machines).
>
> The maximun number of conections we have seen is 370.
>
> Below I include some info about the server that can be of interest.
>
> My server is using RedHat 4 ES update 5
> [informix@saih respaldo_conf]$ uname -a
> Linux saih.inr.gob.mx 2.6.9-55.ELsmp #1 SMP Fri Apr 20 16:36:54 EDT 2007
> x86_64 x86_64 x86_64 GNU/Linux
>
> We are using IDS 11.5 FC5
> [informix@saih respaldo_conf]$ onstat -
>
> IBM Informix Dynamic Server Version 11.50.FC5 -- On-Line -- Up 14:44:21 --
> 3296300 Kbytes
>
> [informix@saih ~]$ onstat -p
>
> IBM Informix Dynamic Server Version 11.50.FC5 -- On-Line -- Up 15:02:58 --
> 3296300 Kbytes
>
> Profile
> dskreads pagreads bufreads %cached dskwrits pagwrits bufwrits %cached
> 803051 5116508 1317398798 99.94 863679 1063515 7082328 87.97
>
> isamtot open start read write rewrite delete commit rollbk
> 974690064 1029061 1914834 937852565 2519305 12637 73794 8051 4
>
> gp_read gp_write gp_rewrt gp_del gp_alloc gp_free gp_curs
> 0 0 0 0 0 0 0
>
> ovlock ovuserthread ovbuff usercpu syscpu numckpts flushes
> 0 0 0 3512.02 49.25 302 151
>
> bufwaits lokwaits lockreqs deadlks dltouts ckpwaits compress seqscans
> 58848 2 2656077359 0 0 1 19463 70959
>
> ixda-RA idx-RA da-RA RA-pgsused lchwaits
> 32181 2342 400009 434365 46228
>
> And finaly I include an edited copy of my onconfig (to remove comments)
>
> ROOTNAME rootdbs
> ROOTPATH $INFORMIXDIR/liga_dbspaces/dbs_rootweb
> ROOTOFFSET 0
> ROOTSIZE 2008092
> MIRROR 0
> MIRRORPATH $INFORMIXDIR/tmp/demo_on.root_mirror
> MIRROROFFSET 0
> PHYSFILE 50000
> PLOG_OVERFLOW_PATH $INFORMIXDIR/tmp
> PHYSBUFF 128
> LOGFILES 20
> LOGSIZE 10000
> DYNAMIC_LOGS 2
> LOGBUFF 64
> LTXHWM 70
> LTXEHWM 80
> MSGPATH $INFORMIXDIR/inrserver.log
> CONSOLE $INFORMIXDIR/inrserver.con
> TBLTBLFIRST 0
> TBLTBLNEXT 0
> TBLSPACE_STATS 1
> DBSPACETEMP dbs_tempweb
> SBSPACETEMP
> SBSPACENAME
> SYSSBSPACENAME
> ONDBSPACEDOWN 2
> SERVERNUM 0
> DBSERVERNAME ol_inrserver
> DBSERVERALIASES ol_inrservershm
> NETTYPE ipcshm,1,50,NET
> NETTYPE soctcp,3,150,NET
> LISTEN_TIMEOUT 60
> MAX_INCOMPLETE_CONNECTIONS 1024
> FASTPOLL 1
> MULTIPROCESSOR 1
> VPCLASS cpu,num=4,noage
> VPCLASS shm,num=1,noage
> VPCLASS soc,num=3,noage
> VP_MEMORY_CACHE_KB 0
> SINGLE_CPU_VP 0
> #VPCLASS aio,num=1
> CLEANERS 4
> AUTO_AIOVPS 1
> DIRECT_IO 0
> LOCKS 20000
> DEF_TABLE_LOCKMODE page
> RESIDENT 2
> SHMBASE 0x44000000L
> SHMVIRTSIZE 262144
> SHMADD 32768
> EXTSHMADD 32768
> SHMTOTAL 0
> SHMVIRT_ALLOCSEG 0,3
> SHMNOACCESS
> CKPTINTVL 300
> AUTO_CKPTS 1
> RTO_SERVER_RESTART 0
> BLOCKTIMEOUT 3600
> TXTIMEOUT 300
> DEADLOCK_TIMEOUT 60
> HETERO_COMMIT 0
> TAPEDEV /dev/IBMtape0
> TAPEBLK 32
> TAPESIZE 0
> LTAPEDEV /dev/null
> LTAPEBLK 32
> LTAPESIZE 0
> BAR_ACT_LOG $INFORMIXDIR/tmp/bar_act.log
> BAR_DEBUG_LOG $INFORMIXDIR/tmp/bar_dbug.log
> BAR_DEBUG 0
> BAR_MAX_BACKUP 0
> BAR_RETRY 1
> BAR_NB_XPORT_COUNT 20
> BAR_XFER_BUF_SIZE 31
> RESTARTABLE_RESTORE ON
> BAR_PROGRESS_FREQ 0
> BAR_BSALIB_PATH
> BACKUP_FILTER
> RESTORE_FILTER
> BAR_PERFORMANCE 0
> ISM_DATA_POOL ISMData
> ISM_LOG_POOL ISMLogs
> DD_HASHSIZE 31
> DD_HASHMAX 10
> DS_HASHSIZE 31
> DS_POOLSIZE 127
> PC_HASHSIZE 31
> PC_POOLSIZE 127
> STMT_CACHE 0
> STMT_CACHE_HITS 0
> STMT_CACHE_SIZE 512
> STMT_CACHE_NOLIMIT 0
> STMT_CACHE_NUMPOOL 1
> USEOSTIME 0
> STACKSIZE 128
> ALLOW_NEWLINE 0
> USELASTCOMMITTED NONE
> FILLFACTOR 90
> MAX_FILL_DATA_PAGES 0
> BTSCANNER num=1,threshold=5000,rangesize=-1,alice=6,compression=default
> ONLIDX_MAXMEM 5120
> MAX_PDQPRIORITY 20
> DS_MAX_QUERIES
> DS_TOTAL_MEMORY 2048
> DS_MAX_SCANS 1048576
> DS_NONPDQ_QUERY_MEM 512
> DATASKIP
> OPTCOMPIND 2
> DIRECTIVES 1
> EXT_DIRECTIVES 0
> OPT_GOAL -1
> IFX_FOLDVIEW 0
> AUTO_REPREPARE 1
> RA_PAGES 64
> RA_THRESHOLD 16
> EXPLAIN_STAT 1
> SQLTRACE level=med,ntraces=5000,size=10240,mode=global
> #DBCREATE_PERMISSION informix
> #DB_LIBRARY_PATH
> IFX_EXTEND_ROLE 1
> SECURITY_LOCALCONNECTION
> UNSECURE_ONSTAT
> ADMIN_USER_MODE_WITH_DBSA
> ADMIN_MODE_USERS
> SSL_KEYSTORE_LABEL
> PLCY_POOLSIZE 127
> PLCY_HASHSIZE 31
> USRC_POOLSIZE 127
> USRC_HASHSIZE 31
> STAGEBLOB
> OPCACHEMAX 0
> ENCRYPT_HDR
> ENCRYPT_SMX
> ENCRYPT_CDR 0
> ENCRYPT_CIPHERS
> ENCRYPT_MAC
> ENCRYPT_MACFILE
> ENCRYPT_SWITCH
> CDR_EVALTHREADS 1,2
> CDR_DSLOCKWAIT 5
> CDR_QUEUEMEM 4096
> CDR_NIFCOMPRESS 0
> CDR_SERIAL 0
> CDR_DBSPACE
> CDR_QHDR_DBSPACE
> CDR_QDATA_SBSPACE
> CDR_MAX_DYNAMIC_LOGS 0
> CDR_SUPPRESS_ATSRISWARN
> DRAUTO 0
> DRINTERVAL 30
> DRTIMEOUT 30
> HA_ALIAS
> DRLOSTFOUND $INFORMIXDIR/etc/dr.lostfound
> DRIDXAUTO 0
> LOG_INDEX_BUILDS
> SDS_ENABLE
> SDS_TIMEOUT 20
> SDS_TEMPDBS
> SDS_PAGING
> UPDATABLE_SECONDARY 0
> FAILOVER_CALLBACK
> TEMPTAB_NOLOG 0
> DELAY_APPLY 0
> STOP_APPLY 0
> LOG_STAGING_DIR
> ON_RECVRY_THREADS 1
> OFF_RECVRY_THREADS 10
> DUMPDIR $INFORMIXDIR/tmp
> DUMPSHMEM 1
> DUMPGCORE 0
> DUMPCORE 0
> DUMPCNT 1
> ALARMPROGRAM $INFORMIXDIR/etc/alarmprogram.sh
> ALRM_ALL_EVENTS 0
> STORAGE_FULL_ALARM 600,3
> SYSALARMPROGRAM $INFORMIXDIR/etc/evidence.sh
> RAS_PLOG_SPEED 25000
> RAS_LLOG_SPEED 0
> EILSEQ_COMPAT_MODE 0
> QSTATS 0
> WSTATS 0
> #VPCLASS jvp,num=1
> JVPJAVAHOME $INFORMIXDIR/extend/krakatoa/jre
> JVPHOME $INFORMIXDIR/extend/krakatoa
> JVPPROPFILE $INFORMIXDIR/extend/krakatoa/.jvpprops
> JVPLOGFILE $INFORMIXDIR/jvp.log
> #JDKVERSION 1.5
> JVPJAVALIB /bin/j9vm
> JVPJAVAVM jvm
> #JVPARGS -verbose:jni
> #JVPCLASSPATH
> $INFORMIXDIR/extend/krakatoa/krakatoa_g.jar:$INFORMIXDIR/extend/krakatoa/jdbc_g.jar
> JVPCLASSPATH
> $INFORMIXDIR/extend/krakatoa/krakatoa.jar:$INFORMIXDIR/extend/krakatoa/jdbc.jar
>
> BUFFERPOOL
> default,buffers=10000,lrus=8,lru_min_dirty=50.000000,lru_max_dirty=60.500000
> BUFFERPOOL
> size=2K,buffers=1200000,lrus=8,lru_min_dirty=50.000000,lru_max_dirty=60.000000
> AUTO_LRU_TUNING 1
>
> Hope you can help me.
>
> Javier Hernández
>
>
> *******************************************************************************
> Forum Note: Use "Reply" to post a response in the discussion forum.
>
>
>
>

Messages In This Thread

[ View Thread ] [ Post Response ] [ Return to Index ] [ Read Prev Msg ] [ Read Next Msg ]

IDS Forum is maintained by Administrator with WebBBS 5.12.