Resizing of log_buffer in oracle, how to increase it?

Please can one tell me how to increase log_buffer in oracle please. I am doing import and found it is running long.. looks like it is related to log_buffer issue.. i want to increase.. please tell me how to increase log_buffer.
Oracle 10g and OS is SunOS

Hi,
To check if you are using spfile run:
SQL> SHOW PARAMETER spfileif return null you are using pfile if return a filename you are using spfile.
If using spfile use the alter system command in the previous posts.
If using pfile, change the parameter log_buffer direct in the ini.ora .
In both cases you need to bounce the instance to take effect.
I recommend you to take a look in this link also:
- resizing the redo_buffer
Cheers,
Francisco Munoz Alvarez
http://www.oraclenz.com

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How to increase No. of Connections in Oracle DB?

Hi,
As my team using more no. of connections, I need to increase the number of connections.
Kindly guide me to check the current number of connections and how to change / increase that?
As I don't have knowledge on this, I am looking the detailed input on this.
Kindly guide me, How to check the no. of connections in DB and how to increase that?
Thanks in advance,
Orahar.

Orahar wrote:
As my team using more no. of connections, I need to increase the number of connections.For what type of sessions? That determines whether dedicated or shared server sessions on the Oracle server can be used. Shared server scales a lot better than dedicated servers, but requires specific factors to be taken into consideration (e.g. the move of session UGA from the PGA to the SGA, dispatchers required, etc).
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How to increase the memory of oracle

Hi,
I am having oracle database version 11.0.1.6 on windows server 2003 R2.
My Server Ram size is 12 GB.
select * from V$SGAINFO;
Fixed SGA Size     1335136     No
Redo Buffers     12529664     No
Buffer Cache Size     1073741824     Yes
Shared Pool Size     176160768     Yes
Large Pool Size     8388608     Yes
Java Pool Size     16777216     Yes
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Shared IO Pool Size     0     Yes
Granule Size     8388608     No
Maximum SGA Size     1297321984     No
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Are all columns in the WHERE clause indexed?
Are statistics current & accurate for all tables & indexes?
post EXPLAIN PLAN for SQL below
PROCEDURE Pro_unpvt_usm_dr
IS
BEGIN
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How to increase oracle mem

hi,
i got 10GB on my win server 2003 Server x32 but oracle only reads it 2Gb (from Database Configuration Assistant : step 10 out of 12).. how to increase the oracle memory so that it can read more than 2Gb.. ?
I am using oracle 10GR2 (10.2.0.1.0)
thanks alot

Best recommendation would be to switch to x86-64 or AMD64 mode and use a 64 bit OS with 64 bit Oracle to eliminate such issues and any issues related to memory resources in future.
If you insist on using 32 bit mode, read more about VLM configuration in Oracle docs.

How to Increase distributed Transaction parameter value in oracle 10g r2

Hello,
Can you please let me know how to increase the value of Distributed Transaction Parameter in oralce 10g R2
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Usman

Why do you want to increase this?
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How to Increase the SGA Size.

Hi Guru's
I want to Know
How to Increase the SGA Size in Database 8.1.7.4.1
My Ram Size is 6 GB
When I query the Below Script
select name, value
from v$parameter
where name in ('shared_pool_size', 'java_pool_size', 'streams_pool_size',
'log_buffer', 'db_cache_size', 'db_2k_cache_size', 'db_4k_cache_size',
'db_8k_cache_size', 'db_16k_cache_size', 'db_32k_cache_size',
'db_keep_cache_size', 'db_recycle_cache_size', 'large_pool_size');
Result
shared_pool_size     300000000
large_pool_size     0
java_pool_size     50000000
log_buffer     10485760
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My RAM SIZE is 6 GB
Regards
***SBJ***

SGA size on 8i is static , and for increasing the size you have to make the changes in the pfile and bounce the database
First thumb rule is that your SGA should not exceed more than 40% of your PHYSICAL RAM in oracle <= 8i version. You can go around 80% from oracle 9i onwards
http://mohamedazar.wordpress.com/2010/08/30/can-i-increase-sga-target-size-greater-than-sga-max-size/
Edited by: Amigo on Dec 18, 2010 1:31 AM

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Please,
I some questions on oracle 8i.
1. how do I know on oracle 8i if the tablespace X is the temporary tablespace?
2. I have someone that increase the size of the temporary tablespace, so I have to decrease it to its normal size, my question is when I do the following command.
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ERROR at line 1:
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total_extents     : total number of extents in the segment (free or in use)
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free_extents      : total number of extents currently marked as free
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reference
### search MetaLink on: resize tempfile
Note 273276.1 How to Shrink the datafile of Temporary Tablespace
Note 274283.1 How to resize Tempfiles if receive an ORA-03297 error Gen RDBMS.
RD-9014 :
Note 132663.1 ORA-03296 Resizing Temporary Locally Managed Tablespace
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How To Increase the Size of Memo Fields 4000 Char in WebCenter 11g?

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Hello All,
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Let me explain the scenario again in detail:
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Hi,
+"My panel tabbed layout is inside a detailStamp facet of a table"+
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How to increase the size of sort_area_size

How to increase the size of sort_area_size and what size should be according to the PROD database
Thanks

user10869960 wrote:
Hi,
Many Thanks Charles
Oracle does not recommend using the SORT_AREA_SIZE parameter unless the instance is configured with the shared server option. Oracle recommends that you enable automatic sizing of SQL working areas by setting PGA_AGGREGATE_TARGET instead. SORT_AREA_SIZE is retained for backward compatibility."
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From
http://download.oracle.com/docs/cd/B19306_01/server.102/b14237/dynviews_2088.htm
V$SESSION includes a column named SERVER which will contain one of the following for each of the sessions: DEDICATED, SHARED, PSEUDO, or NONE. As a quick check, you could query V$SESSION to see if any sessions are connected using a shared server connection.
From:
http://download.oracle.com/docs/cd/B19306_01/server.102/b14231/manproc.htm
There are several parameters which are used to configure shared server support, as well as several views to monitor shared server.
As Robert mentioned, when the WORKAREA_SIZE_POLICY is set to AUTO, the SORT_AREA_SIZE setting is not used, unless a shared server configuration is in use.
--What default value is WORKAREA_SIZE_POLICY and SORT_AREA_SIZE ?From:
http://download.oracle.com/docs/cd/B19306_01/server.102/b14237/initparams157.htm
"Setting PGA_AGGREGATE_TARGET to a nonzero value has the effect of automatically setting the WORKAREA_SIZE_POLICY parameter to AUTO. This means that SQL working areas used by memory-intensive SQL operators (such as sort, group-by, hash-join, bitmap merge, and bitmap create) will be automatically sized. A nonzero value for this parameter is the default since, unless you specify otherwise, Oracle sets it to 20% of the SGA or 10 MB, whichever is greater."
Actually I am facing performence issue since long time till now i did not get the solution even i have raised SRs but i could not.When the issue occur system seems hang.what i monitored whenever hdisk0 and hdisk1 use 100% the issue occur.
Regards,
SajidWhen you say that you have had a performance issue for a long time, is it a performance problem faced by a single SQL statement, a single user, a single application, or everything on the server? If you are able to identify a single user, or SQL statement that is experiencing poor performance, I suggest starting with a 10046 trace at level 8 (wait events) or level 12 (wait events and bind variables) to determine why the execution appears to be slow. If you have not yet determined a specific user or SQL statement that is experiencing performance problems, you might start with either a Statspack Report or an AWR Report (AWR requires a separate license).
If you believe that temp tablespace usage may be a contributing factor to the performance problem, you may want to periodically run this query, which will indicate currently in use temp tablespace usage:
{code}
SELECT /*+ ORDERED */
TU.USERNAME,
S.SID,
S.SERIAL#,
S.SQL_ID,
S.SQL_ADDRESS,
TU.SEGTYPE,
TU.EXTENTS,
TU.BLOCKS,
SQL.SQL_TEXT
FROM
V$TEMPSEG_USAGE TU,
V$SESSION S,
V$SQL SQL
WHERE
TU.SESSION_ADDR=S.SADDR
AND TU.SESSION_NUM=S.SERIAL#
AND S.SQL_ID=SQL.SQL_ID
AND S.SQL_ADDRESS=SQL.ADDRESS;
{code}
The SID and SERIAL# returned by the above could then be used to enable a 10046 trace for a session. The SQL_ID (and CHILD_NUMBER from V$SESSION in recent releases) could be used with DBMS_XPLAN.DISPLAY_CURSOR to return the execution plan for the SQL statement.
You could also take a look in V$SQL_WORKAREA_ACTIVE to determine which, if any, SQL statement are resulting in single-pass, or multi-pass executions, which both access the temp tablespace.
Charles Hooper
IT Manager/Oracle DBA
K&M Machine-Fabricating, Inc.

How to increase the database size

Hi All ,
Our Client is going to increase their customers from 3.5 million to 5 millions
(12 millions in future ) and there is no increase in the existing licenses..
At present we have very less space in Data base server. We are Going Live at the End of the Month.
How to increase the database size to meet the Client requirements.
we have to increase the No of Processerors etc...
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System Model: IBM,7040-681
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Processor Type: PowerPC_POWER4
Number Of Processors: 2
Processor Clock Speed: 1904 MHz
CPU Type: 64-bit
Kernel Type: 64-bit
LPAR Info: 4 bgl-svr-biap
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Hi Kasi,
Your question is not very clear, from the looks of it, the load on your client's system will be doubling soon.
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On AIX level, you will need to look at CPU / Memory usage.
On SAP Application server, you need to look at SAP Buffers.
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All the best.
Cheers,
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Hi All,
I have 10g R2 RAC on RHEL. As of now, i have 3 redo log files of 50MB size. i have used redo log size advisor by setting fast_start_mttr_target=1800 to check the optimal size of the redologs, it is showing 400MB. Now, i want to increase the size of redo log files. how to increase it?
If we are supposed to do it on production, how to do?
I found the following in one of the article....
"The size of the redo log files can influence performance, because the behavior of the database writer and archiver processes depend on the redo log sizes. Generally, larger redo log files provide better performance, however it must balanced out with the expected recovery time.Undersized log files increase checkpoint activity and increase CPU usage."
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Can anybody help me?
Thanks,
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You dont have to shutdown the database before dropping redo log group but make sure you have atleast two other redo log groups. Also note that you cannot drop active redo log group.
Here is nice link,
http://www.idevelopment.info/data/Oracle/DBA_tips/Database_Administration/DBA_34.shtml
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I recently raised an SR they have asked me to do the following,
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I am getting the following error
Configuration information
Running in C:\product\10.1.3.1\OracleAS_1
Operation mode:Startup, App Server, No Enterprise Manager, Single Instance
Oracle home:C:\product\10.1.3.1\OracleAS_1
Oracle home name:Unnamed
Instance name:SOA.01hw117905.India.TCS.com
Instance type:allProducts
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2009-08-19 09:08:51.863--Processing Step: starting OPMN
2009-08-19 09:09:00.394--Processing Step: starting OPMN managed processes
2009-08-19 09:09:35.19--End log output for Mid-tier services (SOA.01hw117905.India.TCS.com)
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<?xml version='1.0' encoding='WINDOWS-1252'?>
<response>
<msg code="-82" text="Remote request with weak authentication.">
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<process-set id="HTTP_Server">
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</process>
</process-set>
</process-type>
</ias-component>
</ias-instance>
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How to increase No. of attempt to Lock user account in DB

Hi,
How to increase the number of attempt [by giving wrong password] to lock the user account in DB Connection?
We have default feature as No. of attempt is 3 by giving wrong password to lock the user account.
Is it possible to increase the no. of times from 3?
Is it possible to find out who is the resource locked the account by giving wrong password?
Kindly give me input on this more.
Thanks.
Orahar.

You can increase the number of failed login attempts: the number of failed login attempts is configured in profile linked to user account http://download.oracle.com/docs/cd/B19306_01/network.102/b14266/policies.htm#i1007339. Either you change the current profile or you can create a new one and link it to the user account.
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USERNAME PROFILE
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How to increase the per-process file descriptor limit for JDBC connection 15

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I'm using JDBC thin driver connect to Oracle 806 server.
From JDBC faq:
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No. As such JDBC drivers doesn't have any scalability restrictions by themselves.
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null

maybe it is OS issue, but the suggestion solution is from Oracle document. However, it is not provide a clear enough solution, just state "The solution is to increase the per-process file descriptor limit"
Now I know the solution, but not know how to increase it.....
pls help.

Resizing of log_buffer in oracle, how to increase it?

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