Server Administration :: ORA-04031 / Unable To Allocate 256 Bytes Of Shared Memory
Sep 7, 2010
When user insert rows in table oracle interrupts and raise error- ORA-04031: unable to allocate 256 bytes of shared memory? how to do?
I tried to increase the size of shared_pool also but cant.
large_pool_size = 0
shared_pool_size=134217728(128M)
sga_max_size=218103808(208M)
And when I fire 'select* from v$sga;'
Fixed Size 2142976
Variable Size 159386880
Database Buffers 50331648
Redo Buffers 5296128
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Jun 19, 2013
I am seeing the following error message in alert.log (ORA-04031: unable to allocate 32 bytes of shared memory ) and my database goes into hung state and wont let any new sessions to connect and old sessions just hung with no response. i have to kill the instance to come out of this problem.
I am running 11.2.0.3 on AIX and have memory_target=35GB. I would like to know what approach to take to find out the root cause of this? btw - does AWR show if memory was under pressure and what SQL's were consuming more memory just before the problem surface?
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Jun 17, 2011
If I am log in through crystal reports , I am getting the following error.
ORA-04031 unable to allocate bytes of shared memory("","","","").
If I log in through TOAD from back end I am not getting any error.
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Aug 30, 2012
Let me put my current Environment Info.
Single Laptop Machine of 16GB RAM.
Assigned 13GB to VM.
I have installed Oracle Database 11g. 11.2.00. When I try to access my application many times I received below error
• Error:
“”Caused by: java.sql.SQLException: Could not retrieve datasource via JNDI url 'jdbc/oimJMSStoreDS' weblogic.jdbc.extensions.ConnectionDeadSQLExceptio n: weblogic.common.resourcepool.ResourceDeadException : Could not create pool connection. The DBMS driver exception was: ORA-00604: error occurred at recursive SQL level 3
ORA-04031: unable to allocate 352 bytes of shared memory ("shared pool","select /*+ rule */ bucket_cn...","SQLA^337fc737","qertbs:qertbIAlloca te")
[code]......
Even when above error occur I have 7GB free JVM so JVM is not an Issue.
•I have updated Max Capacity of oimOperationsDB =100,oimOperdationDB, oimJMSStoreDS=80,SOADATAStore =80. But still I have error
• ERROR::
• ““Aug 30, 2012 3:24:10 PM EST> <Warning> <oracle.integration.platform.blocks.event.saq> <SOA-31013> <Error handling message (rolling back).
java.sql.SQLException: ORA-04031: unable to allocate 352 bytes of shared memory ("shared pool","select /*+ rule */ bucket_cn...","SQLA^337fc737","qertbs:qertbIAlloca te")
ORA-06512: at "SYS.DBMS_AQ", line 335
ORA-06512: at "DEV_SOAINFRA.EDN_DEQUEUE_OAOO_DELIVERY", line 14”
[code]......
I have modified Shared_pool_size,large_pool_size. Content of my modified Pfile is as below.
o orcl.__db_cache_size=822083584
o orcl.__java_pool_size=2777216
o orcl.__large_pool_size=56777216
o orcl.__oracle_base='/home/oracle/app/oracle'#ORACLE_BASE set from environment
o orcl.__pga_aggregate_target=805306368
o orcl.__sga_target=1174405120
o orcl.__shared_io_pool_size=0
o orcl.__shared_pool_size=601989888
o orcl.__streams_pool_size=0
What’s value of parameter I need to set for datastore, pfile ? (I have 13GB of memory).
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May 17, 2013
Windows 2003 Server Enterprise Edition, Service Pack 2. 3.5GB RAM.Two Oracle Databases running on this server, one not heavily used. On the database i am concerned with it is 10.2.0.3.0.
I have just started to look at this database and am seeing various things in the alert log and have had user error messages as well.Initially when i started looking at this server it was running with quite a small SGA (600MB) and the memory_target_advice was saying to take it to 1000MB.(PGA is around 200MB)
In January, before i looked at it, it started to throw:
ORA-04031 unable to allocate 16 bytes of shared memory ("shared pool","........", "sql area", "tmp") These would occur regularly and mostly during nightly processes, it seems, and thus not bubbling up to users.Having switched the SGA_MAX_SIZE to 1GB a new set of errors starts to appear in the alert log:
ORA-27301: ..... Not enough storage is available to process this command
ORA-27302: ..... ssthrddcr
At the same time the ORA-04031 errors start to bubble through to the users. Before i could return to the scene of the crime someone else set the SGA back to 600MB and the error messages stopped. However the ORA-04031 message start to reappear in the alert log. My questions are many and, mostly, from a lack of knowledge ;) In particular:
1. Why would increasing the SGA lead to a different memory error? I would assume this would have something to do with the amount of memory a 32bit OS will allow a single process to address but the PGA+SGA is only 1200MB.
2. How does a ORA-273xx error end up with a ORA-04031 being shown to the users? I would look at the listener log but its over 2GB!!!
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Jan 1, 2013
I have a package when it runs, it terminates with "unable to allocate 4120 bytes of shared memory"error at a particular INSERT statement. So everytime we had this error, we had to flush the shared pool area, after which it would run without issues(for 3-4 weeks).
It had a dynamic subpartition clause framed, which made it to repharse the query every time.So to reduce this, we removed the subpartition clause(made it to static query), which did benefit of not getting shared pool error.
I would like to find the current shared pool memory usage of my program.Is there a way I could find the live consumption of shared pool area of my program(pkg).
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Sep 21, 2010
How to overcome from the below error.
Database Error-ORA-04031:unable to allocate 76320 bytes of shared memory("shared pool","SELECT/*+Norewrite*/DIST...","sql area","kkmevw:view_txt")
Here I attached that error.
Attached File(s)
Disco_Error_1.jpg ( 49.03K )
Number of downloads: 3
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Mar 9, 2012
When i try to extract create statement of table i get below error message.
SQL>
SQL> set heading off
SQL> set pagesize 0
SQL> set long 1000000
SQL> set feedback off
SQL> select
2 dbms_metadata.get_ddl( 'TABLE','CATALOG_TBL','JACK')
3 from
4 dual
5 /
ERROR:
ORA-04031: unable to allocate 104 bytes of shared memory ("shared pool",
"SELECT
/*+rule*/ SYS_XMLGEN(...","SQLA^fc8f5280","qecsub : qkxrPXformQbc")
ORA-06512: at "SYS.DBMS_METADATA", line 2625
ORA-06512: at "SYS.DBMS_METADATA", line 2668
ORA-06512: at "SYS.DBMS_METADATA", line 2983
ORA-06512: at "SYS.DBMS_METADATA", line 3897
ORA-06512: at "SYS.DBMS_METADATA", line 5678
ORA-06512: at line 1
Note:
----
I am executing this command from another user 'DEMO' which has got DBA privilege.
how to fix this error and extract the create table statement.
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Jan 13, 2013
I'm getting the following error when i shutdown or startup the db,
SQL> shutdown immediate;
ORA-00604: error occurred at recursive SQL level 1
ORA-04031: unable to allocate 264 bytes of shared memory ("shared pool","unknown object","PCUR^18465427","kglob")
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Jun 8, 2012
on 11G R2 on Win 2008,
We had the following error in alertlog repeatedly from 5 PM to 10 PM :
ORA-04031: unable to allocate 32 bytes of shared memory ("shared pool","SELECT VERSION FROM PSVERSIO .....Since MEMORY_TARGET is defined in spfile then shared pool is managed automatically.
Then what to do to avoid this error in future ?
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May 20, 2013
i am facing this problem from yesterday i cant able to do any DML operations on my Database i am getting this error every time
ORA-00604: error occurred at recursive SQL level 2
ORA-04031: unable to allocate 3896 bytes of shared memory ("shared pool","select x.inst_id,x.indx+1,ks...","sga heap(1,0)","kglsim
i am giving SHOW parameter SGA or even select statement i am getting the same error message
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Oct 8, 2011
I have installed Oracle 10g on my PC and create a Database on it. I wanted to connect it with PL Sql Developer with the same PC but it`s not connecting. It gives the following error "ORA-01019: unable to allocate memory in the user " And some time blank error message box.
Here is system information:
OS: Winsows 7
Oracle Database 10g Express Edition
PL SQL Developer 8.0.3.1510
Login Setting
User Name: book
Password: oracle
Database: XE
Connect as: Normal
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Jul 29, 2011
I have a stored procedure which uses BULK COLLECT and the table has 16 nested tables within it. When I limit the number of rows processed it works fine, if I let it run with all the 10,000 rows I get this:
ERROR: ORA-04030: out of process memory when trying to allocate 16408 bytes
(koh-kghu call ,pmuccst: adt/record)
sga_max_size - 12884901888
sga_target - 10737418240
pga_aggregate_target - 838860800
shared_pool_size - 2147483648
I believe the machine has 32GB memory, but there is another Oracle instance running on it.
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Jan 25, 2010
I am facing a problem as listed below:
$sqlplus /nolog
SQL>conn /as sydba
connected.
SQL>conn upt/upt
not connected
ora-01034 not available
ora-27101 shared memory realm doesntnot exists
linux error-2 no such file ...
SQL>...
UPT is the user in which our data resides.
wat cud be the problem??????
I tried increasing sizes in INIT.ORA.... listener,tns is OK
.bash_profile of ORACLE user is also correct.
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Jan 17, 2013
i did this step
C:UsersAdministrator>sqlplus
SQL*Plus: Release 10.2.0.4.0 - Production on Thu Jan 17 15:59:33 2013
Copyright (c) 1982, 2007, Oracle. All Rights Reserved.
Enter user-name: sys@orcl as sysdba
Enter password:
Connected to an idle instance.
SQL> create pfile from spfile;
[code].....
here its my init.ora file
##############################################################################
# Copyright (c) 1991, 2001, 2002 by Oracle Corporation
##############################################################################
###########################################
# Cache and I/O
###########################################
[code].....
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Sep 16, 2003
All of a sudden my oracle application has stopped functioning.When I try to log in I get the following messages:
ORA-27101 SHARED MEMORY REALM DOES NOT EXIST
ORA-01034 ORACLE NOT AVAILABLE
From the command line when I try to connect as sysdba and startup the following message appears: "oracle instance terminated.Disconnection forced"
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Sep 24, 2013
i am continuously inserting data to oracle database after some time like 2 hours oracle disconnects,it creates erros like
ERROR:
ORA-01034: ORACLE not available
ORA-27101: shared memory realm does not exist
Process ID: 0
Session ID: 0 Serial number: 0
after restarting the database with shutdown immediate ans startup if i start inserting records it will show erros like
ORA-01653: unable to extend table SYSTEM.GLT_PROT_TRAFFIC_SUM_VOIP by 8192 in tablespace GLCOMM
but i have created the Tablespace with BigFile Auto Extend and max size unlimited, i am having 400GB disk space created Redo logs with 15gb,i have tried serveral times reinstalling the oracle but problem is not solved.
same problem is happenging with small datafiles also,
operating system: windows server 2008 R2 standard
oracle server : 11g
oracle client : 64 bit
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Oct 11, 2012
we are having a test server in bank environment.
Details:
IBM p series servers
AIX 5.3
Server memory : 16G
there are 2 instances on this server.
1. Near DR - 9840M
2. Test server - 1344M
Rest is for server.
Oracle 10.2.0.3.0 - Production
2 days ago we are running a stored procedure on this test server. After some time DB gave this error and stored procedure stopped.After that we were unable to login through Oracle Client Software. Whenever we try to login to this DB through client software, it gives following errors.
ERROR:
ORA-01034: ORACLE not available
ORA-27123: unable to attach to shared memory segment
IBM AIX RISC System /6000 Error: 13: Permission denied
We tried to shut the DR database and then login but still gives error..
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Feb 21, 2012
[oracle@localhost ~]$ sqlplus system/password
SQL*Plus: Release 10.2.0.1.0 - Production on Tue Feb 21 20:20:09 2012
Copyright (c) 1982, 2005, Oracle. All rights reserved.
ERROR:
ORA-01034: ORACLE not available
ORA-27101: shared memory realm does not exist
Linux Error: 2: No such file or directory
But when i am using SID name while connecting to database i am able to connect...
[oracle@localhost ~]$ sqlplus system/password@apple
SQL*Plus: Release 10.2.0.1.0 - Production on Tue Feb 21 20:21:42 2012
Copyright (c) 1982, 2005, Oracle. All rights reserved.
Connected to:
Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Production
With the Partitioning, OLAP and Data Mining options
SQL>
I have only one database...
TNS.......
# tnsnames.ora Network Configuration File: /u01/app/oracle/product/10.2.0/db_1/network/admin/tnsnames.ora
# Generated by Oracle configuration tools.
APPLE =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 72.0.0.11)(PORT = 1521))
[code]...
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Jun 17, 2011
I have a 11g database installed on a windows 2003 server. When I created the database I could not assign more than 2GB for SGA_TARGET where as I have 16GB of RAM available on the server. I created the database with SGA_TARGET as 1.5 GB and Memory_TARGET as 2GB. I could create the database successfully. Later when I again tried to increase SGA_TARGET to 6GB and MEMORY_TARGET to 8GB, I could not start the database. I got below error;
ORA-27102: out of memory
OSD-00022: additional error information
O/S-Error: (OS 8) Not enough storage is available to process this command
Quote:I added /pae in the boot.ini
Added AWE_WINDOW_SIZE key to registry as 2000000000
Set use_indirect_data_buffers=true
added db_block_buffer=131072 (ie. 2GB DB_BLOCK_SIZE=16kb)
java_pool_size= 1000M
large_pool_size=1000M
shared_pool_size=2000M
I got again the same error
I could not use SGA_TARGET. So is AMM not allowed with AWE?
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Jul 25, 2012
I have the following setup
SQL> show parameter sga;
NAME TYPE VALUE
------------------------------------ ----------- ------------------------------
lock_sga boolean FALSE
pre_page_sga boolean FALSE
sga_max_size big integer 3G
sga_target big integer 2G
from what I read I beleive this will initially grab 2GB of memory on startup and will grab up to to 3GB of memory total for the SGA. The "total" memory can be allocated to different peices of the SGA when needed but will never exceed 3GB. Is this correct or would these settings infringe on any available memory on a system that is already tight on memory?
Secondly, what happens if both these values are set to the same value?
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Feb 28, 2012
I am facing this error in my application page
OraOLEDB(0x80040E14)
ROW-00001
Cannot allocate memory
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Mar 6, 2006
We are using Oarcle 10G release and IIS-6 in our web application.
After moving to oracle 10G we started getting this error
ROW-00001: Cannot allocate memory
now and then. If we restart, the problem gets resolved.
Applications stability is broken because of this.
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Nov 27, 2012
two columns of dba_data_files (Bytes & user_bytes).
select bytes/1024/1024, maxbytes/1024/1024, user_bytes/1024/1024 from dba_data_files;
1532767.9843754.9375
249032767.984375489.9375
39032767.98437589.9375
453032767.984375529.9375
5204832767.9843752047.9375
6204832767.9843752047.9375
7204802047.9375
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Jan 4, 2012
I just want to know whether we have to pre-allocate space for temporary tablespaces?
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Aug 30, 2011
create a procedure or cursor to allocate extents to all tables with zero rows for all the user in the database.I have used the below query to check table with zero rows and no extents allocated.
select onwer,table_name,initial_extent
from dba_tables where initial_extent is null order by owner;
I generated the query to allocate extents by using concatenation in the above query.
select 'ALTER TABLE '||table_name|| ' ALLOCATE EXTENT; '
from dba_tables where initial_extent is null order by owner;
now I want the extent allocation for such table auutomatically for aal the tables with zero rows.
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Nov 7, 2011
Currently all my tablesapces are "UNIFORM" and I am looking into going to "AUTOALLOCATE" so space will not be some much of an issue.
I am using the following code and here is the output
sqlplus -s / <<-EOT
set pages 50
set line 100
set verify off
set feed off
set trimspool on
[code]........
Have a script that can emulate my above output and also deal with tablespaces that can autotallocate?
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May 13, 2013
When investigating memory usage on HP-UX V3 for my oracle database 11.2.0.3.4 which use AMM, it seems to me that system is not shifting shared SGA memory to private PGA memory when needed but it allocate other memory.The shared memory don't shrink all the memory_target id allocated. VSZ = RSZ
To test i have used this script which will allocate memory in process PGA.
create or replace package demo_pkg
as
type array is table of char(2000) index by binary_integer;
g_data array;
end;
[code]...
I have done the same test on a linux machine (Red Hat Enterprise Linux Server release 6.3) and the size of the POSIX shared memory switched (/dev/shm) to the PGA like demonstrated by Tanel Poder in his blog [URL]...
Related conf :
lock_sga=FALSE
pre_page_sga=FALSE
pga_aggregate_target 0
sga_target 0
memory_target 5553258496
memory_max_target 5553258496
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Mar 8, 2013
I download Oracle Database Express Edition 11g EX.install in my windows XP laptop.run SQL command (following the start guide)
try to connect to database.
I go the error message.
ERROR:
ORA-01034: ORACLE not available
ORA-27101: shared memory realm does not exist
Process ID: 0
Session ID: 0 serial number: 0
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Jul 2, 2012
My environment is Windows XP PC
Ram - 1 GB
Oracle version 8.1.7.0.0
Enter user-name: sys as sysdba
Enter password:
ERROR:
ORA-01034: ORACLE not available
ORA-27101: shared memory realm does not exist
Even i start the Oracle service through the services.msc there are no new entries seen in alert log file of the database.I even changed the init DBNAME. ora file but that file is not being read. what is the normal procedure used by oracle 8i while starting the DB ? Which file should be edited if i come across shared realm memory error.
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