Processes parameter

I have an Oracle 9i database.
Currently the processes parameter has been set to 500. In future the number of concurrent user processes will be around 2500.
How can I say whether my database will support those many processes based on x GB of physical memory or pga or sga size.
Thanks in advance.

I don't think there is any way, other than "testing", to certify whether your configuration will support those many number of users.
If you would like to verify how your system (configuration) would behave under load, try HammerOra. I love that tool.
http://hammerora.sourceforge.net/

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ORA-32003: error occured processing parameter 'distributed_transactions'

Hi,
We are having oracle 10g database on AIX platform.As of now,Our database is running on pfile and We wanted the database to run on spfile.I tried to create the spfile and It is throwing the below error.Could somebody help me out on this issue...
SQL> create spfile from pfile;
create spfile from pfile
ERROR at line 1:
ORA-01078: failure in processing system parameters
ORA-32003: error occured processing parameter 'distributed_transactions'
LRM-00101: unknown parameter name 'distributed_transactions'
I read the following old thread in this discussion forum related to this error , but I could not find a solution in that thread.
error occured processing parameter

Hi Satish,
I'm not sure.I have taken up this project recently and seeing lot of issues with the databases,might be lack of proper administration.
For some other database also I'm getting the same error for the parameter 'job_queue_interval'
SQL> create spfile from pfile;
create spfile from pfile
ERROR at line 1:
ORA-01078: failure in processing system parameters
ORA-32003: error occured processing parameter 'job_queue_interval'
LRM-00101: unknown parameter name 'job_queue_interval'
If these are the parameters from oracle 8.1.7,can I comment these out.
or How can I resolve these issues related to the parameters.

Setting processes parameter

hi guys...
i'm using db rel 10.2.0.1 enterprise edition, windows server 2003 (32-bit) , on an average work day, about 150 users are connected through the application server to the database.
how does one know the appropriate value to set the "processes" parameter? what exactly does it depend on?
oracle documentaion doesn't help much, so if anybody can help, it would be really appreciated.

The Process parameter depends sort of on Sessions parameter. So if the number of sessions are 150 than settings Processes parameter to about 300 should be okay. There is no guidelines as such available which mentions how many to set. This is sort of a test-try kind of thing.
You can check a view though, V$RESOURCE_LIMIT to check that if you set Processes to N number, how many of them are actually being used by your db?
http://download.oracle.com/docs/cd/B19306_01/server.102/b14237/dynviews_2050.htm#REFRN30206
HTH
Aman....
Edited by: Aman.... on Dec 14, 2008 6:14 PM
Added a bit more

Error occured processing parameter

Hi,
I need to set new value for log_buffer. so what I did was i issued the following command at sql command prompt
alter system set log_buffer=50M scope=spfile;
it throws
ORA-012095: specified initialization paramer cannot be modified
so i brought the DB down and I made an entry(log_buffer=50m) in the initfile
and saved. Then, when I try to create spfile from pfile;
it throws error
ORA-91978:failure in processing system parameters
ORA-32003:error occured processing parameter 'log_buffer'
Due to this I couldn't resize the log buffer.
can anyone help me in how to set log_buffer
Please help in this..... I will e grateful to you
OS:AIX
oracle:10.2.0.2.0
Thanks in advance
With Regards
Boo

What are you trying to resolve or trying to accomplish?
Setting log_buffer to 50M doesn't make any sense at all,
as the log_buffer will be written when 1M is dirty or when it's one third full, whichever occurs first.
You are likely wasting some 45M of memory.
Sybrand Bakker
Senior Oracle DBA

Enterprise Manager Exceeding Max Processes Parameter

We have a new install of 11.2.0.2 on OEL 5. We have the processes parameter set to 500 and sessions parameter set to over 700. We have EM database control setup and for some reason, it was using all of the processes making us unable to connect to the database. As soon as we shutdown dbconsole, the number of active processes went back down to less than 40. There were only 3 active users on the system. Anyone know why EM was making so many connections? Is this a bug?

There were various bugs in earlier versions (one says "This bug would have been fixed in old 11GC line which has been decommisioned."), look at the emagent.trc and see if has large numbers of uninformative errors. Do an SR, they'll probably uncaringly make you recreate everything and it will magically transform into different errors.

Optimal value of processes parameter in AMS instance

Hi
If we have several database instances on single server which are accessing ASM instance. How can we calculate optimal value of PROCESSES parameter for ASM instance
Here, I would like to mention that we are using Goldengate also for replication and for this our ARCHIVE DG is on ASM
Rgds
Harvindr

I have seen systems with multiple database instances (4-6) and running very well with just the defaults. That being said, follow the recommendations. GG, IIRC, talks to the database which does all of the reads/writes for GG. Therefore, 50+50*n RDBMS INSTANCES.
http://docs.oracle.com/cd/E11882_01/server.112/e10803/config_gg.htm
"Oracle GoldenGate 11g introduces a new optimized method of reading log files stored in Oracle ASM. *This new method uses the database server to access the redo and archived redo log files, instead of connecting directly to the Oracle ASM instance*. The database must contain the libraries with the API modules. The libraries are currently included with Oracle Database release 10.2.0.5 and 11.2.0.2. For information for accessing the API modules for other releases, see "Optimized Access for Oracle GoldenGate to Redo Log Files in ASM - for Oracle Database Releases other than 10.2.0.5 and 11.2.0.2" in My Oracle Support Note 1333171.1 at https://support.oracle.com/CSP/main/article?cmd=show&type=NOT&id=1333171.1 "

Processes Parameter in 11g

Hello,
Oracle offers licencing by the number of processes parameter. I want to increase Processes value to 300. let me know oracle recomends any licence aggrement? or we can increase
the processes parameter any value depends on the no of CPU's ? Is there any effect if we increase processes parameter to 300? FOR INCREASING THE PROCESSES PARAMETER ORACLE RECOMENDS LICENCE AGGREMENT?
NAME VALUE
processes 150
sessions 264
transactions 290
SESSIONS_MAX USERS_MAX CPU_COUNT_CURRENT
0 0 24
Above is the total cpu count.
Regards,
Edited by: Hari Ravipati on 24 Jun, 2012 4:36 AM

Oracle licensing options vary - pl check with your friendly Oracle salesperson regarding your license options. Any licensing advice offered in these forums in not legally binding in a court of law :-)
HTH
Srini

Oracle Processes parameter

Hi,
What does "Processes" parameter mean in Oracle 10g R2. By what I understand I understood that it is the maximum number of OS processes that can be connected to Oracle. Please correct me if I am wrong. How do we determine the number of processes that we need to decide? Also What if we give the number very high i.e say 1000 or 2000. I am asking this because, I was told that for every user connected to database a process is taken away. What if I specify my processes as 200 and 5000 concurrent users try to connect to database. What is the work around for this option? If possible what please explain me what kind of errors do we get when we give processes very less? What is the maximum possible number that can be given in any environment? How does it work in RAC 10g R2? Like, are the processes distributed to each instance exactly or it changes it number dynamically? Is there any way we can find how many processes each instance in RAC is using?

PROCESSES is a static parameter.
It can only be change by restarting the DB.
It is essentially the maximum number of concurrent users (sessions within the DB).
But each additional user slot consumes RAM/shared memory

Processes parameter does not changing

Hi All,
Resently we changed the processes parameter from 200 to 500 after changing we can see the new value as 500
when we restarting the DB using the script addbcctl.sh once again it showing 200
if we restart the DB(after changing the Processes parameter value) manually as sysdba user at sql prompt it is showing new value i.e 500 but if we restart the DB(after changing the Processes parameter value) using the script addbcctl.sh it is showing old value i.e 200
Please provide a solution out DB version is 10.2.0.3

Hi,
I believe this is because of pfile and spfile. The database script addbctl.sh use the pfile to bring the database up, while when you start the database manually via SQL*Plus it reads the spfile first. So, you can either make the addbctl.sh script read the spfile instead of the pfile -- See (Note: 457257.1 - How to use an SPfile with Auto Config ?) for details OR recreate the pfile from the spfile (take a backup of the pfile first, then issue "SQL> create pfile from spfile;").
Regards,
Hussein

OWB10gR2 process parameter error

Hi,
I have OWB 10gR2 with 2.6.4 Workflow on a 10gR2 database. I create a process flow in owb with a process parameter. The process contains a mapping with an input parameter. I bind the process parameter to the mapping parameter.
When I deploy the mapping to workflow I see that the mapping and process parameters are not deployed to workflow (wf_activity_attributes). And when I run the process from the control center manager and give a value to the process parameter this value does not appear in the runtime either (all_rt_audit_execution_params).
It works fine with OWB 9.2 and 10.1.0.4 as well.
Does anybody have an idea about this problem? What have been changed in R2 OWB in this territory? And how this problem can be solved?
Thanks,
Gabor

could you elaborate a little bit on that?
I have some issues with all my Process flows, after migrating from 10.1.0.4 to OWB10gR2.
When I try to generate the PF packages it fails with internal error:
oracle.wh.service.sdk.runtime.QueryException: null
- Internal Error Unknown System Parameter PARAM0 for executionAdapterId= 5 executionOperatorId= 1080
I can not delete this parameter from the process flow (the delete option is disabled when I click on in), and it doesn't complain about another parameter, PARAM, that I created after the migration.

Should i increase PGA when PROCESS parameter is increased?

DB version:10gR2
Currently our PROCESSes parameter is set to 500 and PGA_AGGREGATE_TARGET set to 700mb. We are going to increase init.ora parameter PROCESSES to 1000. Should i be increasing PGA_GGREGATE_TARGET as well?

user659394 wrote:
DB version:10gR2
Currently our PROCESSes parameter is set to 500 and PGA_AGGREGATE_TARGET set to 700mb. We are going to increase init.ora parameter PROCESSES to 1000. Should i be increasing PGA_GGREGATE_TARGET as well?
Probably - but where are you going to get that memory from ?
When you set pga_aggregate_target, you are saying two things to Oracle. One viewpoint is that you are saying to that on average each process needs about N MB of memory (in your case about 1.4MB, which is a reasonable type of figure for an OLTP system). The alternative viewpoint is that you are saying to Oracle - ater startup and all other activity, this is the amount of memory available for Oracle processes so please ration it carefully.
If your viewpoint is the former, you need to set your pga_aggregate_target to something getting on for twice your current value. If your viewpoint is the latter, you can't change the pga_aggregate_target unless you get some more memory from somewhere else (e.g. the db_cache_size, or shared_pool_size).
Regards
Jonathan Lewis
http://jonathanlewis.wordpress.com
http://www.jlcomp.demon.co.uk
"The temptation to form premature theories upon insufficient data is the bane of our profession."
Sherlock Holmes (Sir Arthur Conan Doyle) in "The Valley of Fear".

Max processes issue (but not a processes parameter issue)

I am having ora-0020 max processes issue, but my max processes is set to 550, and I have a highwater mark of 132 processes
select * from v$resource_limit
where resource_name = 'processes';
RESOURCE_NAME CURRENT_UTILIZATION MAX_UTILIZATION INITIAL_ALLOCATION LIMIT_VALUE
processes 52 132 550 550
This is a 2 node RAC cluster, and this only happens on one of the nodes. Anyone every see anything like this ?? It looks like some sort of leak with process handles or something.

This does seem quite strange. What version are you running?
ORA-0020 does seem to be a problem at the instance level, not the underlying O/S.
$oerr ora 20
00020, 00000, "maximum number of processes (%s) exceeded"
// *Cause: All process state objects are in use.
// *Action: Increase the value of the PROCESSES initialization parameter.If the problem was at the O/S level, I'd expect an ORA-12500, "TNS:listener failed to start a dedicated server process".
-Mark

File Adapter--Processing parameter configuration

Hi Experts,
I need to configured the sender and reciever FTP Adapter to Archive a 37 MB text file within a FTP server.
It is taking 20 min to archive the file.
does this requirement requires any change in Parameter configuration(like transfer mode, channel availabilty planning( i am using daily with duration 30 min) to make it fast.
Thank you,
MK

Hi Experts,
To archive huge files using FTP adapter, i looked at the Michal weblog to zip the file :
/people/michal.krawczyk2/blog/2007/02/08/xipi-command-line-sample-functions
please explain how and where to write the below file
@ECHO OFF
7za.exe a -tzip D:\file_cat\%2.zip %1
del %1
and also explain
Zipping a file can also be done with jar.
For example,
jar cvf m.zip m.txt
will zip m.txt into m.zip
No need for any other software as jar is highly likely to be on the XI/PI server...
and how to implement it in the FTP adapter configuration.
Thanks in Advance.

FCC processing parameter issues

I have some probs with FCC. I am now getting output in exactly the desired format. Am using append in FCC as processing mode. I want to remove the wrong data in the folder. I am using NFS. I don't see the delete option in receiver file adapter FCC processing options.
How do I delete it ? Would overwrite work ? Would it remove the entire data or just the last entry ?
How do we delete it ?

Hi Madhav,
> How do I delete it ? Would overwrite work ? Would it remove the entire data or just the last entry ?
I think you are talking about the target folder file, if yes then it is not possible to delete the records.
Solution is In file construction mode we have to use the create option and select the Overwrite existing file Checkbox.
For using this we have the target folder Write permitions, if our user having those permitions then that file is replaced, then second time onwards use the append option.
Regards
Ramesh

Input Parameter in process flow

Hi, I can't pass a parameter in a process flow, I'm following these step:
To accomplish your task you should do following steps:
1. Define input parameters for all your mappings
2. Collect mappings within process flow
3. Define process parameters.
To do this withing Process editor and point somewhere on process diagram - don't select any activities In bottom-left window you will see the list of all process' activities. Select "Start" activity and press Add button below. New parameter line should appear under Start activity. Edit name and type of parameter and repeat creating input process parameters.
4. Select Mapping with input parameters. In bottom-left window selectted activity will appear. Click on plus sign to expand mapping parameters. For each parameter set its Binding to the Process parameter. Continue with other mappings.
The process flow recibe the input parameter, but it's not passing through the mappings
if I run the maps one by one, the result is Ok
Thanks and regards

Hi
How do you know the process flow is receiving the input, and that the mapping is not?
So you followed the following
http://blogs.oracle.com/warehousebuilder/2009/01/process_flow_parameters_1.html
but with a map as the activity?
Cheers
David

Processes parameter

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