Frequent ORA-04031

Hi All,
We are experiencing frequent ORA-04031 Error. Every time it seems like related to BAMIMA: Bam Buffer.
Below is the error message we get every time....
ORA-04031: unable to allocate 86840 bytes of shared memory ("shared pool","CSI_DATASTRUCTURES_PUB_W","PL/SQL MPCODE","BAMIMA: Bam Buffer") ORA-06508: PL/SQL: could not find program unit being called ORA-06512: at "APPS.CSI_JAVA_INTERFACE_PKG_W", line 544 ORA-06512: at line 1.
Every time we get this error as a workaround we are flushing shared pool. We would like to have a permamnent fix for this error.
Previous time we observed the error we captured status from shared pool using sqls mentioned in the note on how to trouble shoot the error. Below are the details.
PMLDVI> SELECT KSMCHCLS CLASS, COUNT(KSMCHCLS) NUM, SUM(KSMCHSIZ) SIZ,
2 To_char( ((SUM(KSMCHSIZ)/COUNT(KSMCHCLS)/1024)),'999,999.00')||'k' "AVG SIZE"
3 FROM X$KSMSP GROUP BY KSMCHCLS;
CLASS NUM SIZ AVG SIZE
R-free 3143 31298556 9.72k
R-freea 3321 22229092 6.54k
R-perm 3791 43872580 11.30k
R-recr 3 564 .18k
free 52920 165384092 3.05k
freeabl 455464 491624024 1.05k
perm 8305 126528064 14.88k
recr 164651 92139468 .55k
PMLDVI> select component, current_size, min_size, max_size, granule_size from v$sga_dynamic_components
/ 2 3
COMPONENT CURRENT_SIZE MIN_SIZE MAX_SIZE GRANULE_SIZE
shared pool 905969664 905969664 905969664 16777216
large pool 201326592 201326592 201326592 16777216
buffer cache 486539264 486539264 486539264 16777216
PMLDVI> select KSMCHIDX "SubPool", 'sga heap('||KSMCHIDX||',0)'sga_heap,ksmchcom ChunkComment,
2 decode(round(ksmchsiz/1000),0,'0-1K', 1,'1-2K', 2,'2-3K',3,'3-4K',
3 4,'4-5K',5,'5-6k',6,'6-7k',7,'7-8k',8,
4 '8-9k', 9,'9-10k','> 10K') "size",
5 count(*),ksmchcls Status, sum(ksmchsiz) Bytes
6 from x$ksmsp
7 where KSMCHCOM = 'free memory'
8 group by ksmchidx, ksmchcls,
9 'sga heap('||KSMCHIDX||',0)',ksmchcom, ksmchcls,decode(round(ksmchsiz/1000),0,'0-1K',
10 1,'1-2K', 2,'2-3K', 3,'3-4K',4,'4-5K',5,'5-6k',6,
11 '6-7k',7,'7-8k',8,'8-9k', 9,'9-10k','> 10K');
SubPool SGA_HEAP CHUNKCOMMENT size COUNT(*) STATUS BYTES
1 sga heap(1,0) free memory 0-1K 14803 free 1659324
1 sga heap(1,0) free memory 1-2K 3866 free 3029472
1 sga heap(1,0) free memory 2-3K 1546 free 2800644
1 sga heap(1,0) free memory 3-4K 9592 free 29320940
1 sga heap(1,0) free memory 4-5K 6981 free 26635544
1 sga heap(1,0) free memory 5-6k 68 free 329244
1 sga heap(1,0) free memory 6-7k 9 free 52448
1 sga heap(1,0) free memory 7-8k 24 free 169648
1 sga heap(1,0) free memory 8-9k 30 free 239672
1 sga heap(1,0) free memory 9-10k 3 free 25852
1 sga heap(1,0) free memory > 10K 2 free 21636
1 sga heap(1,0) free memory 0-1K 110 R-free 23632
1 sga heap(1,0) free memory 1-2K 118 R-free 117192
1 sga heap(1,0) free memory 2-3K 93 R-free 183976
1 sga heap(1,0) free memory 3-4K 97 R-free 301824
1 sga heap(1,0) free memory 4-5K 285 R-free 1131096
1 sga heap(1,0) free memory 5-6k 44 R-free 217448
1 sga heap(1,0) free memory 6-7k 34 R-free 204612
1 sga heap(1,0) free memory 7-8k 40 R-free 281616
1 sga heap(1,0) free memory 8-9k 149 R-free 1210056
1 sga heap(1,0) free memory 9-10k 42 R-free 372648
1 sga heap(1,0) free memory > 10K 529 R-free 7758560
2 sga heap(2,0) free memory 0-1K 12287 free 598420
2 sga heap(2,0) free memory 2-3K 4 free 7856
2 sga heap(2,0) free memory 3-4K 2 free 6276
2 sga heap(2,0) free memory 4-5K 5 free 19316
2 sga heap(2,0) free memory 6-7k 1 free 5576
2 sga heap(2,0) free memory 9-10k 1 free 9264
2 sga heap(2,0) free memory > 10K 4080 free 96903548
2 sga heap(2,0) free memory 0-1K 57 R-free 7852
2 sga heap(2,0) free memory 1-2K 42 R-free 41756
2 sga heap(2,0) free memory 2-3K 52 R-free 105100
2 sga heap(2,0) free memory 3-4K 59 R-free 184188
2 sga heap(2,0) free memory 4-5K 134 R-free 537868
2 sga heap(2,0) free memory 5-6k 58 R-free 286236
2 sga heap(2,0) free memory 6-7k 53 R-free 322096
2 sga heap(2,0) free memory 7-8k 73 R-free 511620
2 sga heap(2,0) free memory 8-9k 127 R-free 1016488
2 sga heap(2,0) free memory 9-10k 52 R-free 465852
2 sga heap(2,0) free memory > 10K 894 R-free 15876048
Also the init variable values the db using is as below...
shared_pool_size = 850M
db_cache_size = 450M
shared_pool_reserved_size = 100000000
sharedpool_reserved_min_alloc = 4100
olap_page_pool_size = 4194304
All these variables seem like having proper values....but still the issues are occuring almost this error is getting reported for every twodays.
If any body has experienced this situation, please let me know how you could get around with this.
If already these variables are at proper values.. please let me know whether there is any way i can detect the condiction before and prior the error is raised so that i can automatically detect and flush shared pool, so that i can atleast prevent the error from occuring.
Thanks & Regards.

Hi All,
OS is SunOS 32bit. DB version is 9.2.0.6. Its not using shared server configuration. This database is being used by 11.5.9 Apps.
Thanks,
Adi.

Similar Messages

Frequent ORA-04031 in the 10g seed db

The db is lightly used and includes sample schemes. The complaint is always about allocations from the "large pool" whose size was set at 8mb. The problem could appear in tools like rapid sql when it enumerated from the dictionary, say, or in the java OEM doing similar tasks. Some queries that aggregated would note their recursive nature. then complain about memory. I've done two things to overcome thing (I'm new to Oracle, by the way): first, I set sga_target to 300m to supposedly allow oracle to manage more of this work itself. That didn't seem to help; I believe that was about the initial size of the sga anyway. Second, I raised the total size then set the large pool to 20m. I have not seen 04031 since I made that change, but I know that doesn't necessarily mean it was the right move. Below are results from v$parameter:
NAME VALUE
sga_max_size 331350016
__shared_pool_size 167772160
shared_pool_size 167772160
__large_pool_size 20971520
large_pool_size 20971520
__java_pool_size 104857600
java_pool_size 104857600
streams_pool_size 0
shared_pool_reserved_size 8388608
sga_target 331350016
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db_cache_size 25165824
db_2k_cache_size 0
db_4k_cache_size 0
db_8k_cache_size 0
db_16k_cache_size 0
db_32k_cache_size 0
db_keep_cache_size 0
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db_recovery_file_dest_size 2147483648
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olap_page_pool_size 0
Your advice or commentary would be welcome. Thanks!

Greetings Raj. Mostly 04031 came from GUI tools like Rapid SQL or Oracle's own Enterprise Manager (the one written in Java, distributed with the client). Asking Rapid SQL to show a list of db objects could make the error, which would read like "unable to allocate 8192 bytes from large pool." So I can't say how the SQL is done in those cases. I have not done very much straight sql with this yet, but a case likely to bring the "recursive sql" complaint followed by the memory complaint would be any sql with DISTINCT in the select clause.
I suppose a fundamental question would be how large should the sga "large pool" be for the seed database that's unused except for management of the Oracle instance. I'll stody the bind variables, but mostly I should have been able to do what I was doing without that, particularly since in most cases I experienced, I wasn't in control of the sql--Oracle was. ;-)

ORA-04031 on 10g - should I just adjust my SGA POOL SIZE?

Has anyone gotten this message frequently:
ORA-04031: unable to allocate 37536 bytes of shared memory ("shared pool","unknown object","sga heap(1,0)","session parame")
We are a business intelligence application that issues lots of large queries. We just migrated to 10g and we are seeing this every 2-3 days on our testing machine.
In particular, I am not sure about "sga heap"... I would just set my Shared Pool Size higher - currently 144 MB but will this help here? Thoughts?

In Oracle 10g a new feature called "automatic memory management" allows the dba to reserve a pool of shared memory that is used to allocate the shared pool, the buffer cache, the java pool and the large pool.
In general, when the database needs to allocate a large object into the shared pool and cannot find contiguous space available, it will automatically increase the shared pool size using free space from other SGA structure.
Since the space allocation is automatically managed by Oracle, the probability of getting ora-4031 errors may be greatly reduced. Automatic Memory Management is enabled when the parameter SGA_TARGET is greater than zero and the current setting can be obtained quering the v$sga_dynamic_components view.
Please refer to the 10g Administration Manual for further reference
http://download-west.oracle.com/docs/cd/B19306_01/server.102/b14231/toc.htm

ORA-04031: unable to allocate 4096 bytes if shared memory

Hello Gurus,
Did anyone got this type of error before:
ERROR:
ORA-20414: Materialized View refresh failed - ORA-12008: error in materialized view refresh path
ORA-04031: unable to allocate 4096 bytes of shared memory ("shared pool","IDX_MIF_SITE","pacdHds_kkpaco","stP_kkpacd: kkpodPacdInit")
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Does anyone know the solution or can throw some light on this issue?
Thanks,
Sanjay

We want to find the actual cause of it and fix?The cause is simple - you have run out of memory assigned to the Shared Pool in the SGA.
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Some of the possible reasons for running out of shared pool might include
- it's simply undersized;
- not enough SQL is actually shareable;
- the large pool has not been allocated.
That second one is frequent when the application builds up SQL statements by concatenating pieces, including literals (user input) and then executing the unique statement. This is a common technique by developers using .Net, Perl or having SQL Server background. (That mode of operation is very susceptible to SQL Injection.)
You can get a lot more info from:
- searching the forum;
- looking in the docco (Concepts manual and Performance Tuning guide);
- books, like Tom Kyte's "Expert One on One Oracle", "Effective Oracle By Design", and newer on apress.com

ORA-04031: unable to allocate 33568 bytes of shared memory in Oracle 10g

Hi,
I am getting following message frequently while taking export in Oracle 10g database:-
EXP-00008: ORACLE error 4031 encountered
ORA-04031: unable to allocate 33568 bytes of shared memory ("shared pool","DBMS_REPCAT_UTL","PL/SQL MPCODE","BAMIMA: Bam Buffer")
ORA-06508: PL/SQL: could not find program unit being called: "SYS.DBMS_REPCAT_UTL"
ORA-06512: at "SYS.DBMS_REPCAT_EXP", line 87
ORA-06512: at line 1
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EXP-00008: ORACLE error 4031 encountered
ORA-04031: unable to allocate 16416 bytes of shared memory ("shared pool","SELECT SYNNAM, SYNNAM, SYNTA...","kgghtInit","kgghtInit")
EXP-00000: Export terminated unsuccessfully
Whats could be the reason?

There could be a few reasons causing the problem. From literal message it would look like your shared pool size is small and you need to increase. But the root cause of the problem is a little more complicated than that. I suggest you read metalink doc
Diagnosing and Resolving Error ORA-04031
Doc ID: Note:146599.1

ORA-00604: error occurred at recursive SQL level 1 + ORA-04031

Hi,
SQL> select * from v$version;
BANNER
Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - 64bi
PL/SQL Release 10.2.0.1.0 - Production
CORE    10.2.0.1.0      Production
TNS for Solaris: Version 10.2.0.1.0 - Production
NLSRTL Version 10.2.0.1.0 - Production
os version : SunOS oratest 5.10 Generic_127127-11 sun4u sparc SUNW,Sun-Fire-V210
SQL> show parameter sga_target
NAME                                 TYPE        VALUE
sga_target                           big integer 892M
SQL> show parameter shared_pool_size
NAME                                 TYPE        VALUE
shared_pool_size                     big integer 112M
when i do normal query i am getting ora-04031 error and 10g server is Automatic Shared Memory Management since i set sga_target and server as to do automatically readjusts the sizes of memory pools, if that is the case why it throwing ora-04031 error;
below errors showing before bounce the database
SQL> show parameter size
ORA-04031: unable to allocate 3840 bytes of shared memory ("shared
pool","unknown object","sga heap(1,0)","kglsim object batch")
SQL> select * from tab
2 ;
select * from tab
ERROR at line 1:
ORA-04031: unable to allocate 3840 bytes of shared memory ("shared
pool","select * from tab
","sga heap(1,0)","kglsim object batch")
alert log file:
Errors in file /oracle/admin/appsdb/bdump/appsdb_smon_19154.trc:
ORA-00604: error occurred at recursive SQL level 1
ORA-04031: unable to allocate 3840 bytes of shared memory ("shared pool","unknown object","sga heap(1,0)","kglsim object batc
h")
Thanks
PrakashEdited by: prakashdba on Jan 10, 2009 12:31 AM
Edited by: prakashdba on Jan 10, 2009 4:10 AM

And your version number is?
And your patch level is?
And your hardware and operating system are?
What did you find when you looked this up at metalink?
Did you follow the advice in the metalink Knowledge Base docs?

Error ORA-04031 while executing a stored procedure from Pro C++ code

I am getting the error ORA-04031(Unable to allocate 4096 bytes of shared memory("Shared Pool",.....)) while trying to execute a stored procedure from my pro*C application. This happens only after a few hours since the application has been running. I am closing the cursor after every database call.
Does anyone know why it is happening and any possible solutions?
TIA
Srithaj.

One thing that can be done is to flush the shared pool before starting the application.
alter system flush shared pool;
Another is to increase the shared pool size by setting the parameter shared_pool_size in init_sid.ora file.
null

Urgent help with memory issue (ORA-04031)

Hi Geeks,
Came Across this below error in alert log in of our databases. Interestingly this error only pops up while the database backup runs. Below are the memory parameters.
memory_max_target big integer 14G
memory_target big integer 13G
pga_aggregate_target big integer 0
sga_target big integer 0
shared_pool_reserved_size big integer 192M
shared_pool_size big integer 0
ORA-04031: unable to allocate 5792 bytes of shared memory
("shared pool","unknown object","sga heap(1,1)","ges resource ")
Errors in file /apps/opt/oracle/diag/asm/+asm/+ASM1/trace/+ASM1_lmd0_14123.trc
I have tried specifying a value to shared_pool_size but with no luck..!! Pls help. I am not sure how to resolve this.

Hi, ORA-4031 in this case can be caused by unrestricted growth of the PGA, thus forcefully reducing the SGA.
We've had this in the past also.
The solution is in older versions to increase the shared_pool_size as you mentioned but with ASMM, this is no longer an option. You can however retrict the growth of the PGA by setting SGA_TARGET.
On our system this now looks like:
SQL> show parameter _target
NAME                                 TYPE                 VALUE
db_flashback_retention_target        integer              1440
memory_max_target                    big integer          10G
memory_target                        big integer          10G
pga_aggregate_target                 big integer          0
sga_target                           big integer          8GSee how we in fact set the max growth of the PGA to 2Gb ( 10Gb - 8Gb)
Try this and see if ot works for you also
Success!!
FJFranken

SAP BW with ORA-04031 Errors

Hello All,
Context:
We have a financial closing system working in the BW 3.5 and Oracle 9.2.0.7.0.
We are working with more than 100 millions records in 3 days.
In general, the system uses the standard data marts and BPS processes (copy, distribution, etc).
Error:
We had a lot of ORA-04031 errors for all execution (ABAP Programs, Data Loads, BPS Executions), it stopped the environment.
We did the "stop/start" the server to solved the problem.
The basis team increase the parameter "shared_pool_size" = 3000M - We saw the SAP Note (690241) and which is more than enough.
We have fear about it, we think it is posible to occurs again.
This is a big impact for the business.
Have you got this error in the past?
Could you please help us.
Thanks a lot.
Daniel Souza
SAP BW, SEM and Portal Consultant.
São Paulo - Brazil
+55 11 99092151

Hi Chandran,
We saw this note.
The basis team have been changed the KGHDSIDXCOUNT parameter ( 4 to 1).
I am not founding more causes for this problem in the note.
Is it posible to have problems if the DB_CACHE_SIZE parameter is very large? example 18000M?
The basis team reduces the value for 1700M, in the last shutdown.
How can I flush the memory automatically?
The basis team reported this error for us. "It is not posible to flush the memory, it is necessary to shutdown the server".
Is it posible for the oracle 9i manage the memory area (shared pool) automatically? Is it recommended? Have you got this experience?
We have seen two notes about it:
997889 --> "Increase the memory SGA the ocurrence of error ORA-04031 but it does not prevent it."
617416 --> "The following areas of the SGA can be changed dynamically with Oracle 9.2 if the SGA is configured dynamically: Buffer Cache, Shared Pool, Large Pool."
Thanks a lot.
Best regards,
Daniel Souza
São Paulo - Brazil

ORA-04031: unable to allocate 64 bytes of shared memory

Hi All,
We are performing System copy on a distributed environment with OS Windows 2003 and DB Oracle 10.2.0.4
While importing the Database (ABAP) only ,we are facing error and 5 import steps are failing in Import ABAP phase.
Error is "ORA-00604: error occurred at recursive SQL level 1
ORA-04031: unable to allocate 4120 bytes of shared memory ("shared pool","select user#,type# from user...","Typecheck","kgghteInit")
(DB) INFO: disconnected from DB"
There is already one Oracel Instance OracleXX1 is runing this is the second instance and the server has around 1.75 GB RAM...i
Can you please suggest what could be the error.
Regards
Ajay

Dears,
Please try increase your database parameter shared_pool_size in pfile and then try to resume the activity.
Regards,
Shivam

ORA-04031-----capture aborat in stream in oracle 10g R2 in win 2003

Hi Experts,
Error Message ORA-04031: unable to allocate 116 bytes of shared memory ("streams pool","unknown object","streams pool","kolcalm coll")
I got this message for capture ABORTED. my sga_target and sga_max as 1880M. Do I need to increase their size? stream pool size as 880. shared_pool_reserved_size as 14M.
Based on oracle document for this error message:
Action: If the shared pool is out of memory, either use the dbms_shared_pool package to pin large packages, reduce your use of shared memory, or increase the amount of available shared memory by increasing the value of the INIT.ORA parameters "shared_pool_reserved_size" and "shared_pool_size". If the large pool is out of memory, increase the INIT.ORA parameter "large_pool_size".
Key point: we use asm to control. it include share_pool and large_pool. Do we need to increase share pool size?
Or we need to take other steps to handle this point.
Thanks for help!!
regards
Jim
Edited by: user589812 on Nov 24, 2008 9:02 AM

Sorry. I use Oracle 10GR2 in window 2003
For you sql results as
STREAMS_POOL_SIZE_FOR_ESTIMATE STREAMS_POOL_SIZE_FACTOR ESTD_SPILL_COUNT ESTD_SPILL_TIME ESTD_UNSPILL_COUNT ESTD_UNSPILL_TIME
272 .1828 66034094 49261 72443892 114732
424 .2849 56899900 42916 69761439 110546
576 .3871 29490067 17904 56631824 87657
728 .4892 23989724 13951 55330937 85704
880 .5914 20168762 11552 54131928 83935
1032 .6935 16931737 9668 52998667 82269
1184 .7957 14147340 8134 51948431 80724
1336 .8978 11706951 6797 51052796 79408
1488 1 9679293 5687 50314492 78322
1640 1.1022 8051240 4800 49768913 77520
1792 1.2043 6747253 4087 49361033 76921
STREAMS_POOL_SIZE_FOR_ESTIMATE STREAMS_POOL_SIZE_FACTOR ESTD_SPILL_COUNT ESTD_SPILL_TIME ESTD_UNSPILL_COUNT ESTD_UNSPILL_TIME
1944 1.3065 5699093 3515 49064019 76483
2096 1.4086 4829584 3040 48850903 76171
2248 1.5108 4089840 2638 48682591 75923
2400 1.6129 3425461 2278 48542520 75717
2552 1.7151 2815554 1949 48417853 75535
2704 1.8172 2267859 1648 48297317 75357
2856 1.9194 1865779 1427 48178756 75183
3008 2.0215 1678078 1315 48063018 75014
3160 2.1237 1637930 1277 47943171 74838
I am waiting for your help!
JIm

ORA-00604, ORA-04031

How can I handle this error message?
ERROR:
ORA-00604: error occurred at recursive SQL level 2
ORA-04031: unable to allocate 4048 bytes of shared memory ("shared pool","TRIGGER$","sga heap","state objects")
ORA-00604: error occured at recursive SQL levle1
ORA-04031: unable to allocate 4048 bytes of shred memory
("shared pool","unknown object","sga heap","state objects")
I changed shared_pool_size.
Initial shared_pool_size is 52428800
and I changed it to 1500000000.
Isn't 150M enough?
Should I have to set shared_pool_size to lager size?
Or is there any other way to fix this problem?
Oracle Version is 8.1.6.
Platform is SGI , IRIX 6.4.10+.
Please, help me.
Tanki

- Use bind variables in your applications (if they are not used allready)
- Pin larger packages (the ones you actaully use) immediately uppon database startup
- Increase your shared pool (if it's not unreasonably large allready)
- ALTER SYSTEM FLUSH SHARED_POOL; when you encounter ORA-4031 (this is more of a temporary workaround than a real sollution)

Oracle error   ORA-00604 & ORA-04031

ORA-00604: error occurred at recursive SQL level 2
ORA-04031: unable to allocate 4200 bytes of shared memory ("shared pool","TRIGGER$","sga heap","state objects")
ORA-00604: error occurred at recursive SQL level 1
ORA-04031: unable to allocate 4200 bytes of shared memory ("shared pool","unknown object","sga heap","state objects")
plz help me to find why this error is coming . I am running Oracle8i Release 8.1.7.0.0 on windows 32 bit server. And also how to resolve it

ORA-04031: unable to allocate string bytes of shared memory ("string","string","string","string")
Cause:      More shared memory is needed than was allocated in the shared pool.
Action:      If the shared pool is out of memory, either use the dbms_shared_pool package to pin large packages, reduce your use of shared memory, or increase the amount of available shared memory by increasing the value of the INIT.ORA parameters "shared_pool_reserved_size" and "shared_pool_size". If the large pool is out of memory, increase the INIT.ORA parameter "large_pool_size".
Regards
Asif Kabir

ORA-12853 and ORA-04031 simultaneously

Hello,
I am getting the following errors when I try to start Oracle
ORA-12853: insufficient memory for PX buffers: current 0K, max needed 2640K
ORA-04031: unable to allocate 21544 bytes of shared memory ("large pool","unknown object","large pool","PX msg pool")
My init.ora file is as follows -
EDA.__db_cache_size=1174405120
EDA.__java_pool_size=33554432
EDA.__large_pool_size=0
EDA.__shared_pool_size=1174405120
EDA.__streams_pool_size=0
*._OPTIM_PEEK_USER_BINDS=FALSE
*.background_dump_dest='/oracle/EDA/saptrace/background'
*.compatible='10.2.0'
*.control_file_record_keep_time=30
*.control_files='/oracle/EDA/origlogA/cntrl/cntlrEDA.dbf','/oracle/EDA/origlogB/cntrl/cntrlEDA.dbf','/oracle/EDA/sapdata1/cntrl/cntrlEDA.dbf'
*.core_dump_dest='/oracle/EDA/saptrace/background'
*.db_block_size=8192
*.db_cache_size=1159641169
*.db_files=254
*.db_name='EDA'
*.dml_locks=4000
*.event='10191 trace name context forever, level 1'
*.FILESYSTEMIO_OPTIONS='setall'
*.job_queue_processes=1
*.log_archive_dest='/oracle/EDA/oraarch/EDAarch'
*.log_buffer=1048576
*.log_checkpoint_interval=0
*.log_checkpoints_to_alert=true
*.open_cursors=800
*.optimizer_features_enable='10.2.0.1'
*.pga_aggregate_target=1546188226
*.processes=80
*.recyclebin='off'
*.remote_login_passwordfile='exclusive'
*.remote_os_authent=true
*.sessions=96
*.sga_max_size=2319282339
*.sga_target=2399141888
*.shared_pool_reserved_size=115964116
*.shared_pool_size=1159641169
*.sort_area_retained_size=0
*.sort_area_size=2097152
*.statistics_level='typical'
*.undo_management='AUTO'
*.undo_retention=43200
*.undo_tablespace='PSAPUNDO'
*.user_dump_dest='/oracle/EDA/saptrace/usertrace'
*.workarea_size_policy='AUTO'
According to me everything looks fine. Kindly help me sort this error.
Thanks in advance.

1. Play with Shared Pool....
a. The following query determines the available memory for SHARED_POOL_SIZE in Oracle sga
select sum (bytes)/1024/1024 from v$sgastat where pool=u2019shared poolu2019
b. The following query determines the total used memory by shared_Pool in Oracle SGA.
select sum (bytes)/1024/1024 from v$sgastat where pool=u2019shared poolu2019 and name not in (u2019free memoryu2019)
c. This is the most important query
select
sum(a.bytes)/(1024*1024))shared_pool_used,
max(b.value)/(1024*1024) shared_pool_size,
sum(a.bytes)/(1024*1024))-
(sum(a.bytes)/(1024*1024)) shared_pool_avail,
((sum(a.bytes)/(10241024))/(max(b.value)/(10241024)))*100
pct_shared_pool_avl
from v$sgastat a, v$parameter b
where (a.pool=u2019shared poolu2019
and a.name not in (u2019free memoryu2019))
and
b.name=u2019shared_pool_sizeu2019
You need to continously monitor the shared Pool with the above query at differnet times. During Peak times and Non peak times to have glance of shared pool usage in the Oracle database.
if the available pct_shared_pool_avl crosses 95% then i think you should re-consider the Process of increasing the shared_pool_size.
2. There are many way to improve Shared Pool performance.
a. Ask ABAPers to write more generic and reusablecode.
b. Using of right block size.
c. Proper design of the database.
Comment on ORA-04031 :
This error should not appear in any of the application logs, the alert log or any trace files. Do not depend on ORA-04031 errors being written to the alert log, as 4031 errors only appear in the alert log if they affect background process operations (such as PMON activities). 4031u2019s are not internal errors and so could be trapped and handled by the application (this is not recommended).
From 10gR1 onwards, a 4031 trace file is written to the user_dump_dest (or background_dump_dest) directory; this trace file is useful in diagnosing the nature of problem
Hope this will help you.
Regards,
SK
OCP DBA -9i,10g

ORA-04031 Errors

So I am running Oracle 11g and APEX 4.2.1.00.08 on an Amazon m1.medium instance. I also have it running on a Dell T300 server locally. I haven't had any issues with application on the local server, but I keep getting memory errors on the Amazon one. This is the error message " ORA-04031: unable to allocate 32792 bytes of shared memory ("large pool","unknown object","session heap","kgich") "
I have checked the shared memory pool on both machines. Here is what "select * from v$sgainfo; " shows from both machines if that is of any use: [Amazon Machine|http://diversifiedindustries.biz/images/AmazonOracle.jpg] [Local Machine|http://diversifiedindustries.biz/images/DIOracle.jpg] I am not sure how to interpret these results as I am a noob when it comes to Oracle and Apex things.
Any thoughts on how I can fix this?

I had originally posted in the APEX forum and it was suggested I try here, which is why I had only put the APEX version. I know now to post everything in the future.
jgarry wrote:
Please show us the output of this command:
show parameter pool
SQL> show parameter pool
NAME                                 TYPE        VALUE
buffer_pool_keep                     string
buffer_pool_recycle                  string
global_context_pool_size             string
java_pool_size                       big integer 0
large_pool_size                      big integer 0
olap_page_pool_size                  big integer 0
shared_pool_reserved_size            big integer 8178892
shared_pool_size                     big integer 100M
streams_pool_size                    big integer 0
Also, you can create a pfile from spfile, and post that.
xe.__db_cache_size=8388608
xe.__java_pool_size=4194304
xe.__large_pool_size=4194304
xe.__oracle_base='C:\oraclexe\app\oracle'#ORACLE_BASE set from environment
xe.__pga_aggregate_target=16777216
xe.__sga_target=192937984
xe.__shared_io_pool_size=4194304
xe.__shared_pool_size=163577856
xe.__streams_pool_size=4194304
*.audit_file_dest='C:\oraclexe\app\oracle\admin\XE\adump'
*.compatible='11.2.0.0.0'
*.control_files='C:\oraclexe\app\oracle\oradata\XE\control.dbf'
*.db_name='XE'
*.DB_RECOVERY_FILE_DEST_SIZE=10G
*.DB_RECOVERY_FILE_DEST='C:\oraclexe\app\oracle\fast_recovery_area'
*.diagnostic_dest='C:\oraclexe\app\oracle\.'
*.dispatchers='(PROTOCOL=TCP) (SERVICE=XEXDB)'
*.job_queue_processes=4
*.memory_target=200M
*.open_cursors=300
*.remote_login_passwordfile='EXCLUSIVE'
*.sessions=20
*.shared_pool_size=104857600
*.shared_servers=4
*.undo_management='AUTO'
*.undo_tablespace='UNDOTBS1'

Frequent ORA-04031

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