Database is too slow.....

Hello Guys,
we are running oracle database on windows 200 server.
Oracle version is 9i release 1.
Database have become to slow, please tell me what to do.
What could be the reasons and how to resolve this issue. Users are suffering.
Please its urgent.
Regards,
Imran Baig

i cant answer rest of the questions as i have no idea abt them. Well if you cannot answer them how do you expect us to be able to answer them?
You see, we are not telepaths nor are we sorcerers. Tuning a system is not like voodoo. If only it were. So all we can do is advise you to start learning how your system works and quickly. Before your suffering users decide to make you suffer too :(
The best place to start is with the tuning guide. You should also have to hand the concepts guide and the admin guide. In particular you need to look at the tools that will allow you to diagnose your system. Also, are there any meesages in the alert log? Any .TRC files in the background dump directory?
Once you have some hard information to give us we might be able to help you.
Good luck!
Cheers, APC

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Database got too slow suddenly

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Last edited by wakeup12 (2014-09-27 14:29:19)

Hello,
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In case of the first scenario, the roundtrip latency for the connection to the datacenter might play a role.
If you are comparing to a local installation, please note that you might be running against completely different hardware specifications and without network delay, resulting in very different results.
In both cases you can use the below blog post to assess the resource utilization of the SQL Database during the operation:
http://azure.microsoft.com/blog/2014/09/11/azure-sql-database-introduces-new-near-real-time-performance-metrics/
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Performance is too slow on SQL Azure box

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My EBS is too slow on windows 7

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Query is too slow from bseg selection

SELECT BELNR BLDAT BUDAT XBLNR GJAHR tcode WAERS AWKEY FROM BKPF INTO
TABLE
ITBKPF WHERE BUKRS EQ P_BUKRS AND BELNR IN S_BELNR AND BUDAT IN
    P_BUDAT
    AND STBLG = ''
    AND ( TCODE = 'MIRO' OR
                         TCODE = 'MR8M' OR
                         TCODE = 'MB11' OR
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SELECT A1LIFNR A1NAME1 A1ORT01 A1STRAS B1~j_1icstno
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SELECT BUKRS BELNR GJAHR BUZEI BUZID BSCHL SHKZG GSBER MWSKZ
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Moderator message: Please Read before Posting in the Performance and Tuning Forum
locked by: Thomas Zloch on Aug 5, 2010 2:08 PM

You should have provided the full key of the cluster file behind BSEG (RFBLG), every key is in BKPF, so add BUKRS
SELECT bukrs belnr gjahr buzei buzid bschl shkzg gsber mwskz
       dmbtr hkont lifnr landl matnr werks menge ebelp xref3
INTO CORRESPONDING FIELDS OF TABLE itabbseg
FROM bseg
FOR ALL ENTRIES IN itbkpf
WHERE bukrs = itbkpf-bukrs
    AND belnr = itbkpf-belnr
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    AND ( bschl EQ '86' OR bschl EQ '96' OR bschl EQ '89' OR bschl EQ '99' )
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You could also extract the whole accounting document in the internal table, and then delete record using the not-database-key selections.
SELECT bukrs belnr gjahr buzei buzid bschl shkzg gsber mwskz
       dmbtr hkont lifnr landl matnr werks menge ebelp xref3
INTO CORRESPONDING FIELDS OF TABLE itabbseg
FROM bseg
FOR ALL ENTRIES IN itbkpf
WHERE bukrs = itbkpf-bukrs
    AND belnr = itbkpf-belnr
    AND gjahr = itbkpf-gjahr.
DELETE itabbseg WHERE
( bschl NE '86' AND bschl NE '96' AND bschl NE '89' AND bschl NE '99' )
OR NOT ( werks IN s_werks )
OR BUZID NE 'F' .
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Regards,
Raymond

Insert or Update Item Master is too slow

Dear Expert,
I have a problem in add or update Item Master Data. When I click Add/Update, the process saving is too slow (need more than 5 minutes). This condition appear yesterday. In 2 days ago process add/update item master data normal.
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I have did shrink database in SQL, but not help.
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Thank you before help me

Hi pak Hendra,
May I know how much is your livedb size now ? If it is still slow after reindexing, you may consider to do these followings suggestions:
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2. Increase your server's processor
3. cut off and do new opening balance
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Oi vay! a mac thats too slow to use DVDs, quicktime, imovi,

OI VAY!!I believe I was sold a mac, by a mac expert nonetheless, that is far too slow and lacking in memory to watch videos in any form, dvd, file, with quicktime, etc.
And it seems too old for the updates available.
its a iBook G4
version 10.4.11
processor: 800 mhz (slow!)
memory: 640 mhz (low!)
Can anyone pls confirm or tell me otherwise please!?
thank u all or any replies most appreciated!
m in berlin

The computer should be able to play DVDs, if it has the correct Combo optical drive,
(and not a CD-RW basic drive) and the RAM can be increased to 1.12GB by adding
a chip under the keyboard in the upgrade slot there.
All in that series should have been able to play DVD media and record/play CD media.
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Mactracker download from http://mactracker.ca and note the iBook (G4) info.
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Early iBook G4 tech specs: http://support.apple.com/kb/SP89
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from the menu which appears when you click on the Blue Apple in left side menubar.
You could also get the items which appear in there, direct as stand-alone installers
from Apple Support downloads online (good for later re-installs, if necessary, if saved.)
Not sure what the problem really is, in regard to the computer. There is a DVD Player
which should launch automatically on insertion of DVD media; in System Preferences
you can choose how media discs are handled in the appropriate Preference panel.
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So, perhaps the alleged expert may have omitted something or the other in discussion
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Hopefully this helps a bit.
Good luck & happy computing!
edited.

Oracle 10g direct path write too slow

Hi All,
We have Oracle 10g on a Solaris virtual server, VMWare ESXi being the host. Data files are on RAID1, internal storage on a HP DL585 with VMFS partition at ESXi level. Problem is that DB writes for a CREATE TABLE as SELECT... statement is way too slow. To create a table which is 0.5 GB, DB takes 9 minutes which amounts to 1 MB/s. When we check for FTP or file copy at Solaris level with same size file (0.5 GB), it flies through in less than a minute. This is Oracle 10.2.0.4, 8K data block, 2 vCPU assigned to the Solaris VM. Have checked with VMWare support for any known issues and also have SR open with Oracle for any param changes that can help speed up things. Any clues or pointers from you all will be of great help.
Thanks,
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Here's the output from tkprof for waits
Elapsed times include waiting on following events:
Event waited on Times Max. Wait Total Waited
---------------------------------------- Waited ---------- ------------
single-task message 1 0.17 0.17
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EXPDP is too slow even though the value of cursor_sharing changed to EXACT.

Hi
We are having a 10g standarad edition database (10.2.0.4) on Solaris 5 which is RAC with ASM. Infact we are planning to migrate it to LINUX x86-64 and to 11.2.0.3. The database size is around 1.3 TB. We are planning to go with an expdp backup and impdp to new server and new version database.
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BANNER
Oracle Database 10g Release 10.2.0.4.0 - Production
PL/SQL Release 10.2.0.4.0 - Production
CORE 10.2.0.4.0 Production
TNS for Solaris: Version 10.2.0.4.0 - Production
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Mem
Memory: 24G phys mem, 6914M free mem, 31G swap, 31G free swap
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forceload: sys/msgsys
forceload: sys/semsys
forceload: sys/shmsys
set noexec_user_stack=1
set msgsys:msginfo_msgmax=65535
set msgsys:msginfo_msgmnb=65535
set msgsys:msginfo_msgmni=2560
set msgsys:msginfo_msgtql=2560
set semsys:seminfo_semmni=3072
set semsys:seminfo_semmns=6452
set semsys:seminfo_semmnu=3072
set semsys:seminfo_semume=240
set semsys:seminfo_semopm=100
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set semsys:seminfo_semvmx=327670
set shmsys:shminfo_shmmax=4294967295
set shmsys:shminfo_shmmin=268435456
set shmsys:shminfo_shmmni=4096
set shmsys:shminfo_shmseg=1024
set noexec_user_stack = 1
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#Non-administrative users cannot change file ownership.
rstchown=1
Do I need to make changes above of these. The dump is taking to local file system.

Hi,
I'd be looking at doing this in parallel over a database link and completely miss out sending anything to nfs - it will make the whole process quicker (you effectively skip the export part and everything is an import into the new instance).
I ran a 600GB impdp in this way over a db link and it maybe took 12 hours (can't remember exactly) - a lot of that time is index build in the new database so make sure your pga etc is set up correctky for that.
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Hi All
I want one suggestion from MS Project Server Experts.
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no.
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for the same.
FYR:
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Pankaj,
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Propagation is too slow

I preapared replication between two databases 11g release 1. Everything works fine but propagation is too slow. Propagation of a single row takes from 2 to 40 seconds. Why there are such differences?
I tried few different values for job_queue_interval = 1, 5, job_queue_processes=5, 10, 20, 1000, latency in propagation scheduler =3, 1, 0, but there was no result.
Databases are not laden.
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When I commit transaction data appear in source queue almost immediately so I think that capture works fine. I have to wait on data in destination queue from 2 to 40 seconds. When data appear in dest queue Apply process inserts them into table immediately.
Regards.

Forall bulk delete is too slow to work,seek advice.

I used PL/SQL stored procedure to do some ETL work. It is pick up refeshed records from staging table, then check to see whether the same record exists in target table, then do a Forall bulk deletion first, then do a Forall insert all refreshed records into target atble. the insert part is working fine. Only is the deleteion part, it is too slow to get job done. My code list below. Please advise where is the problem? Thansk.
Declare
TYPE t_distid IS TABLE OF VARCHAR2(15) INDEX BY BINARY_INTEGER;
v_distid t_distid;
CURSOR dist_delete IS
select distinct distid FROM DIST_STG where data_type = 'H';
OPEN dist_delete;
LOOP
FETCH dist_delete BULK COLLECT INTO v_distid;
FORALL i IN v_distid.FIRST..v_distid.LAST
DELETE DIST_TARGET WHERE distid = v_distid(i);
END LOOP;
COMMIT;
end;
/

citicbj wrote:
Justin:
The answers to your questions are:
1. why would I not use a single DELETE statement? Because this PL/SQL procedure is part of ETL process. The procedure is scheduled by Oracle scheduler. It will automatically run to refresh data. Putting DELETE in stored procedure is better to executed by scheduler.You can compile SQL inside a PL/SQL procedure / function just as easily as coding it the way you have so that's really not an excuse. As Justin pointed out, the straight SQL approach will be what you want to use.
>
2. The records in dist_stg with data_type = 'H' vary by each month. It range from 120 to 5,000 records. These records are inserted into target table before. But they are updated in transactional database. We need to delete old records in target and insert updated ones in to replace old ones. But the distID is the same and unique. I use distID to delete old one and insert updated records with the same distID into target again. When user run report, the updated records will show up on the report. In plain SQL statement, delete 5,000 records takes about seconds. In my code above, it take forever. The database is going without any error message. There is no trigger and FK associated
3. Merge. I haven't try that yet. I may give a try.Quite likely a good idea based on what you've outlined above, but at the very least, remove the procedural code with the delete as suggested by Justin.
>
Thanks.

Logical Standby Apply became TOO SLOW !!

Hi,
I recently have setup a logical standby database. Everything was fine until the apply procedure on the standby became too slow:
SQL> alter session set nls_date_format = 'HH24:MI:SS (MM/DD)';
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SQL> SELECT APPLIED_SCN, APPLIED_TIME, READ_SCN, READ_TIME, NEWEST_SCN, NEWEST_TIME FROM DBA_LOGSTDBY_PROGRESS;
APPLIED_SCN APPLIED_TIME READ_SCN READ_TIME NEWEST_SCN
NEWEST_TIME
3036960310 18:33:28 (05/31) 3035938077 18:12:43 (05/31) 3060387972
16:30:16 (06/02)
SQL>
The applied time changed about 20 minutes during last 46 hours. v$logstdby says:
COORDINATOR: ORA-16116: no work available
READER, BUILDER and PREPARER: ORA-16127: stalled waiting for additional transactions to be applied
All APPLIERs: ORA-16116: no work available
I really don't have any idea about this issue. Any help will be appreciated.
regards

One reason could be the SQL Apply engine performs too many slow full table scans, check metalink note:
Determining if SQL Apply Engine is Performing Full Table Scans
Doc ID: Note:255958.1
If this is the reason for the slowness you have to tune your DML statements.
Werner

Database is too slow.....

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