Maximum sga size per session

Dear all,
Can any one tel me maximum sga a session can consume max.
I want to set session parameter value as 1500 so want to know maximum sga will be requiring to support 1500 session.
Please help me out to short out the above problem.
Thanks and Regards
Monoj Das

You post this thread before ,
Maximum sga_max_size amd sga_target to support 1500 session
Close this one please , don't duplicate your thread

Similar Messages

Event ID: 4, Source: Microsoft-Windows-Kernel-EventTracing, maximum file size for session "ReadyBoot" has been reached.

Hello,
I upgraded my machine to Win7 x64 Pro about 3 weeks ago. My HW is an Asus mobo, Intel Q9450 w/8GB RAM. The boot drives are two Raptors configured as RAID01. All the drivers are the latest available from Intel, Asus and 3rd party vendors. My WEI is 5.9, limited by the disk transfer rates, otherwise 7.1 and 7.2 on the other indexes.
I've been receiving these errors at boot;
Log Name:      Microsoft-Windows-Kernel-EventTracing/Admin
Source:        Microsoft-Windows-Kernel-EventTracing
Date:          11/10/2009 7:51:03 AM
Event ID:      4
Task Category: Logging
Level:         Warning
Keywords:      Session
User:          SYSTEM
Computer:      herbt-PC
Description:
The maximum file size for session "ReadyBoot" has been reached. As a result, events might be lost (not logged) to file "C:\Windows\Prefetch\ReadyBoot\ReadyBoot.etl". The maximum files size is currently set to 20971520 bytes.
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
    <Provider Name="Microsoft-Windows-Kernel-EventTracing" Guid="{B675EC37-BDB6-4648-BC92-F3FDC74D3CA2}" />
    <EventID>4</EventID>
    <Version>0</Version>
    <Level>3</Level>
    <Task>1</Task>
    <Opcode>10</Opcode>
    <Keywords>0x8000000000000010</Keywords>
    <TimeCreated SystemTime="2009-11-10T12:51:03.393985600Z" />
    <EventRecordID>28</EventRecordID>
    <Correlation />
    <Execution ProcessID="4" ThreadID="164" />
    <Channel>Microsoft-Windows-Kernel-EventTracing/Admin</Channel>
    <Computer>herbt-PC</Computer>
    <Security UserID="S-1-5-18" />
</System>
<EventData>
    <Data Name="SessionName">ReadyBoot</Data>
    <Data Name="FileName">C:\Windows\Prefetch\ReadyBoot\ReadyBoot.etl</Data>
    <Data Name="ErrorCode">3221225864</Data>
    <Data Name="LoggingMode">0</Data>
    <Data Name="MaxFileSize">20971520</Data>
</EventData>
</Event>
The image for PID 4 is listed as System.
My searches have turned up similar events listed but no solutions.
Any help would be appreciated.
Cheers!

Session "Circular Kernel Context Logger" failed to start with the following error: 0xC0000035
As suggested above I assume this is a microsoft issue? It has been discussed here and other forums for quite some time. I never have seen a fix? I wish when we received errors of this nature microsoft would tell us what they were. How is this related to superfetch? What is superfetch? Why would superfetch have changed?
BY THE WAY.... Superfetch is on(started) is on automatic and logs on as local system. So this is not the cause of my issue. Also what is readyboot? Does the average computer really know what these programs/services or unique microsoft words/terms are?
System
Provider
[ Name]
Microsoft-Windows-Kernel-EventTracing
[ Guid]
{B675EC37-BDB6-4648-BC92-F3FDC74D3CA2}
EventID
2
Version
0
Level
2
Task
2
Opcode
12
Keywords
0x8000000000000010
TimeCreated
[ SystemTime]
2010-04-11T14:35:49.829600000Z
EventRecordID
25
Correlation
Execution
[ ProcessID]
4
[ ThreadID]
48
Channel
Microsoft-Windows-Kernel-EventTracing/Admin
Computer
Daddy-PC
Security
[ UserID]
S-1-5-18
EventData
SessionName
Circular Kernel Context Logger
FileName
ErrorCode
3221225525
LoggingMode
268436608
Windows7, Windows, Win7

Get report on ingress and egress ipsec traffic size per session

Hi,
I am looking for advice on how to best get the ingress and egress byte counts per VPN session. I have a netflow appliance which gives me aggregated data, but I am looking for the best way to get byte size in and out per session. I am using VPN on a Cisco IOS router (2811).
Thanks.

by the way there is simultaneously no B2B credits deficit on the corresponding fc port and no drops on it observed.

How to set a maximum download size per connection in the ASA?

Hi, I would like to avoid big downloads so I want to set a maximum download file size. How can I set the limit MB allowed per connection in the ASA?
Thanks

Hello Andrew,
I got your question, but I think we might be confused here, I did not specify something after the timeout but when you configure it you will see you have the same options
Here is the configuration options on 8.2.5
ciscoasa(config-pmap-c)# set connection timeout ?
mpf-policy-map-class mode commands/options:
dcd          Configure dead-connection-detection retry interval.
embryonic    Configure absolute time after which an embryonic TCP connection
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half-closed Configure idle time after which a TCP half-closed connection
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idle         Configure idle time after which a connection state will be
               closed.
Now on an ASA running 8.4.4(9)
WPLG-ASA-1(config-pmap-c)# set connection timeout ?
mpf-policy-map-class mode commands/options:
dcd          Configure dead-connection-detection retry interval.
embryonic    Configure absolute time after which an embryonic TCP connection
               will be closed, default is 0:00:30.
half-closed Configure idle time after which a TCP half-closed connection
               will be freed, default is 0:10:00
idle         Configure idle time after which a connection state will be
               closed.
So as you can see same options, no change at all
Hope that I could help
Remember to rate all of the helpful posts

Maximum SGA size in 32-bit OS

Hi All
I want to deploy Oracle Linux 5 to set up for DBA and the server and OS is 32-bit. My questions are
what is the maximum limit of SHMMAX value i can set?
and for this what is the maximum size of oracle SGA?
looking for your early response.
Jeesun

My questions are what is the maximum limit of SHMMAX value i can set?
and for this what is the maximum size of oracle SGA?It depends on if you are using PAE or not.
More at:
http://en.wikipedia.org/wiki/Physical_Address_Extension
http://www.puschitz.com/TuningLinuxForOracle.shtml
http://www.idevelopment.info/data/Oracle/DBA_tips/Linux/LINUX_8.shtml

PI 7.11 - Capacity to handle maximum load/size per transaction

Experts,
What is the SAP Benchmark testing for PI 7.11 ..regarding load / huge data, that is what was the maximum size PI 7.11 can handle in one transaction.
Any SAP / OSS document Please.
Thanks
Edward

Hi Edward,
Check the below links
http://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/00982670-748c-2a10-3985-cdd42fb43e50;jsessionid=
/people/aayush.dubey2/blog/2007/10/10/zip-transfer-unzip-increase-the-performance-of-your-java-abap-applications
/people/pooja.pandey/blog/2005/10/17/number-formatting-to-handle-large-numbers
/people/alessandro.guarneri/blog/2007/02/21/sap-xi-acting-as-a-huge-file-mover
/people/alessandro.guarneri/blog/2006/03/05/managing-bulky-flat-messages-with-sap-xi-tunneling-once-again--updated
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Ramesh

Limit message size per recipient domain

Is there a feature to set maximum message size per recipient domain (incoming emails) in the roadmap maybe?

While you cannot do it by 'domains' for maximum message size limitations, you can limit the connection mail hosts.
IE: domain1.com may use the connecting mail host of mail.domain1.com
domain2.com may use the connection mail host of mx.domain2.com
Then you can create new sendergroups for the respective domains mail servers to match, and with the sendergroup you will need to create a new mail flow policy with the size limits you would like to impose.
Once this is done, simply add the mail.domain1.com into the respective sendergroup and it will impose this limitation.
Key points to note:
Size limits should account for MIME inflation.
IE: 10mb limitation you want to implement should be 14MB on the mail flow policy to account for MIME inflation.
Alternatively, if you would like to do it 'by domain'
SImply increase your mail flow policy for the sendergroup that these domains normally match (under default it would normally be UNKNOWNLIST) and have it at 14MB (to allow for 10MB emails)
Then run a message filter (so it gets actioned at the start)
FilterDomain1:
if (mail-from =="@domain1.com") AND (body-size > 5M)
drop();
Etc. to impose the limits this way.
Note:
Body size refers to the size of the message, including both headers and attachments. The body-size rule selects those messages where the body size compares as directed to a given number.

Sga size limits

Hi all,
Is there a metalink note or oracle list of the SGA size limits on the different platforms and 32/64bit?

Not sure that there is such documents on My Oracle Support. However TECH: Unix Semaphores and Shared Memory Explained (Doc ID 15566.1) explains how Oracle is using Unix/Linux shared memory segments.
Generally speaking I would say that maximum sga size is not an Oracle limit but an OS limit: on Unix it depends on SHMxxx kernel parameters and on Windows I don't know as Oracle architecture is quite different from Unix (a single but multithreaded process using "normal" memory).
See also: Oracle® Database Administrator's Reference 11g Release 2 (11.2) for Linux and UNIX-Based Operating Systems
for AIX and Solaris:
http://download.oracle.com/docs/cd/E11882_01/server.112/e10839/tuning.htm#BABBDBDE
http://download.oracle.com/docs/cd/E11882_01/server.112/e10839/appe_sol.htm#UNXAR344
Edited by: P. Forstmann on 20 mai 2011 11:52

Max sga size on SLES 8.0 ?

Hi all,
what is the maximum SGA size one can set on Suse Linux Enterprise Server ?

hello, I will check the Jumper Settings, which I think is set as slave. But have no idea how to do the delete vtoc and re-label. Can you please provide the instructions for these?
thanks
Jay

I would like to be able to size images by kilobytes instead of pixels--is this possible? I use I-Contact which requires a maximum of 70kb per image. For best quality I want to make the images as close to 70 as possible. Currently I choose a size of 300

I would like to be able to size images by kilobytes instead of pixels--is this possible? I use I-Contact which requires a maximum of 70kb per image. For best quality I want to make the images as close to 70 as possible. Currently I choose a size of 300 pixels on the shortest side but sometimes this gives me an image of slightly greater than 70kb and sometimes the image is just 30-40kb. Is there a way to be more precise in reaching but not exceeding 70 kb?

That is not a feature of iPhoto - suggest to Apple - iPhoto Menu ==> provide iPhoto feedback.
You can opnly resize using the available options and file size is not one of them
LN

Per Session Maximum Message Limit

I have a front-end messaging server that would need to feed the messages to an Anti Spam System before these messages could be further relayed to their respective destinations/back-end messaging server.
The Anti Spam System has a certain limit in number of messages it could receive/process per session. So, I would like to set a per session limit in the number of messages my front-end messaging server can send to the Anti Spam System in order not to have long queue at the front-end messaging server due to the receiving/processing limit set in the Anti Spam System.
The exact version of my messaging server here is iPlanet Messaging Server 5.2 HotFix 1.21. Please advise on how could I achieve this objective of mine.

Could you please explain the below sentence as stated in SUN documentation? =========================================
If the option accepts an integer value, a base may be specified using notation of the form b%v, where b is the base expressed in base 10 and vb. =========================================
For example, if I would like to set "ATTEMPT_TRANSACTIONS_PER_SESSION" to 15 messages, how do I set it based on the above highlighted sentence from SUN documentation?

Need to Increase SGA Size

Hi,
RDBMS : 11.1.0.7.0
OS : RHEL 5 (X86_64)
EBS : 12.1.3
My Database Server RAM size is 128 gb
Currently my Parameters are
SGA_Target = 2g
SGA_max = 2g
Shared_pool_size = 600m
Kernel Parameters are :
kernel.msgmnb = 65536
kernel.msgmax = 65536
kernel.shmmax = 68719476736
kernel.sem = 256 32000 100 142
kernel.shmmni = 4096
kernel.msgmni = 2878
fs.file-max = 6553600
net.ipv4.ip_local_port_range = 1000 65000
net.core.rmem_default = 262144
net.core.rmem_max = 4194304
net.core.wmem_default = 262144
net.core.wmem_max = 262144
My question is...
As My project manager is asking to increase the SGA Size as i have 128gb RAM of server.
Maximum how much i can increase the SGA Size
It is PRODUCTION Server... Now it's running with out any issue... but so much RAM is there y can't we use....?
Please advice..
Thanks,

As per the Note
Maximum SHMMAX values for Linux x86 and x86-64 [ID 567506.1]
=======================================================================
QUESTION 2
===========
What is the maximum value of SHMMAX for a 64-bit (x86-64) Linux system?
ANSWER 2
===========
Oracle Global Customer Support officially recommends a " maximum" for SHMMAX of "1/2 of physical RAM".
The maximum size of a shared memory segment is limited by the size of the available user address space. On 64-bit systems, this is a theoretical 2^64bytes. So the "theoretical limit" for SHMMAX is the amount of physical RAM that you have. However, to actually attempt to use such a value could potentially lead to a situation where no system memory is available for anything else. Therefore a more realistic "physical limit" for SHMMAX would probably be "physical RAM - 2Gb".
In an Oracle RDBMS application, this "physical limit" still leaves inadequate system memory for other necessary functions. Therefore, the common "Oracle maximum" for SHMMAX that you will often see is "1/2 of physical RAM". Many Oracle customers chose a higher fraction, at their discretion.
Occasionally, Customers may erroneously think that that setting the SHMMAX as recommended in this NOTE limits the total SGA. That is not true. Setting the SHMMAX as recommended only causes a few more âshared memory segmentsâ to be used for whatever total SGA that you subsequently configure in Oracle. For additional detail, please see Document 15566.1, "SGA, SHMMAX, Semaphores and Shared Memory Explained"
==========================================================================
Our server RAM is 128 gb.... as per the note 1/2 of the physical RAM we can assign for SHMMAX parameter... (apprx 60gb)
How can i understood this answer for my configuration......
Please advice...
Thanks,

SGA Size for 8.1.7.4 32 bit? , some Interview Questions

Hi buddies,
I got some interview questions, might be simple for geeks in DBA. I am in need of answers. Could anyone help me.
Thanks,
Raaj
1) Does windows NT support direct I/O?
Answer: Choose one of the answers that apply
A: No, only AIO
B: Yes, depending on hardware.
C: Yes.
D: No.
2) Can you take a coldbackup from solaris and use it on windows NT?
Answer: Choose one of the answers that apply
A: Yes.
B: Yes if RMAN backup performed from NT server.
C: Yes, after running RMAN convert.
D: No.
3) All of the following will alter the number of checkpoints that occur in one hour on the database, except one. Which is it?
Answer: Choose one of the answers that apply
A: Decreasing tablespace size
B: Decreasing size of redo log members
C: Setting LOG_CHECKPOINT_INTERVAL greater than the size of the redo log file
D: Setting LOG_CHECKPOINT_TIMEOUT to zero
4) The DBA is attempting to back up the Oracle database control file. After
issuing the ALTER DATABASE BACKUP CONTROLFILE TO TRACE command, where can the DBA find the backup control file creation materials Oracle created for him or her ?
Answer: Choose one of the answers that apply
A: USER_DUMP_DEST
B: LOG_ARCHIVE_DEST
C: CORE_DUMP_DEST
D: BACKGROUND_DUMP_DEST
5) What is the most important action a DBA must perform after changing the database from NOARCHIVELOG TO ARCHIVELOG?
Answer: Choose one of the answers that apply
A: Shutdown normal and restart the database
B: Perform a full logical database backup
C: Perform a full offline database backup
D: Manually switch the log files
6) Which of the following choices lists an ALTER USER option that can be executed by the user herself or himself?
Answer: Choose one of the answers that apply
A: DEFAULT TABLESPACE
B: IDENTIFIED BY
C: TEMPORARY TABLESPACE
D: PROFILE
7) You need to view the initialization parameter settings for your Oracle
database. Which of the following choices does not identify a method
you can use to obtain values set for your initialization parameters?
Answer: Choose one of the answers that apply
A: Issue SELECT * FROM DBA_PARAMETERS; from SQL*Plus
B: Issue SELECT * FROM V$PARAMETER; from SQL*Plus
C: Issue SHOW PARAMETERS from Server Manager
D: Use OEM Instance Manager
8) As a result of a media failure, the current online redo log group is corrupted, the database crashes, as the current online group is inaccessible. Which type of incomplete recovery are you most likely to perform ?
Answer: Choose one of the answers that apply
A: Change-based
B: Time-based
C: Recovery using a backup control file
D: Cancel-based
9) User SNOW executes the following statement: SELECT * FROM EMP. This
statement executes successfully, and SNOW can see the output. Table
EMP is owned by user REED. What object would be required in order for
this scenario to happen ?
Answer: Choose one of the answers that apply
A: User SNOW would need the role to view table EMP.
B: User SNOW would need the privileges to view table EMP.
C: User SNOW would need a synonym for table EMP.
D: User SNOW would need the password for table EMP.
10) Which one of the following statements is true?
Answer: Choose one of the answers that apply
A: The request queue is common, and the response queue is different for all the dispatchers.
B: The request queue and response queue are different for all the dispatchers.
C: The request queue is different, and response queue is common for all the dispatchers.
D: The request queue and response queue are common for all the dispatchers.
11) What is the largest SGA size for 8.1.7.4 32 bit?
Answer: Choose one of the answers that apply
A: approximately 2GB
B: approximately 3.5GB
C: approximately 4GB
D: approximately 8GB
E: approximately 16GB
12) The DBA is about to perform some administrative tasks. Specifying the
OPTIMAL parameter has which of the following appropriate uses?
Answer: Choose one of the answers that apply
A: Limiting concurrent users
B: Limiting concurrent transactions
C: Limiting growth of rollback segments
D: Limiting growth of tables
13) If the DBA wants to find information about how often transactions are
wrapping transaction information between multiple rollback segment
extents, where would the DBA look to find that information?
Answer: Choose one of the answers that apply
A: DBA_ROLLBACK_SEGS
B: V$ROLLSTAT
C: V$ROLLNAME
D: DBA_SEGMENTS
14) You have 30 rollback segments in your database, for which
TRANSACTIONS_PER_ ROLLBACK_SEGMENT is set to 49 and
TRANSACTIONS is set to 1000. During periods of heavy usage, about how many rollback segments will be actively used by Oracle?
Answer: Choose one of the answers that apply
A: 50
B: 60
C: 20
D: 30
15) The DBA has a table created with the following statement:
CREATE TABLE EMPL
(EMPID NUMBER(10),
LASTNAME VARCHAR2(40),
RESUME LONG RAW);
The DBA attempts to issue the following statement:
ALTER TABLE EMPL
ADD ( PERF_APPRAISE LONG);
What happens?
Answer: Choose one of the answers that apply
A: The statement succeeds.
B: The statement succeeds, but column is added as VARCHAR2.
C: The statement fails.
D: The statement adds a disabled constraint.
16) The primary key of the EMP table has three columns, EMPID, LASTNAME,
and FIRSTNAME. You issue the following SELECT statement:
SELECT * FROM EMP WHERE LASTNAME = 'HARRIS' AND FIRSTNAME = 'BILLI'
AND EMPID = '5069493';
Where would you look to see if this query will use the index associated
with the primary key?
Answer: Choose one of the answers that apply
A: DBA_IND_COLUMNS
B: DBA_TAB_COLUMNS
C: DBA_INDEXES
D: DBA_CLU_COLUMNS
17) You are configuring your index to be stored in a tablespace. Which of the
following storage parameters are not appropriate for indexes?
Answer: Choose one of the answers that apply
A: OPTIMAL
B: INITIAL
C: PCTINCREASE
D: NEXT
18) You need to set up auditing in an order entry and product shipment
application so that when the ORDER_STATUS column in the ORDERS
table changes to SHIPPED, a record is placed in a special table associated
with a part of the application that gives sales representatives a daily list
of customers to call on a follow-up to make sure the customer is satisfied
with the order. Which of the following choices represents the best way
to perform this auditing?
Answer: Choose one of the answers that apply
A: Statement auditing
B: Object auditing
C: Audit by access
D: Value-based auditing
19) Information in the buffer cache is saved back to disk in each of the
following situations except one. In which situation does this not occur?
Answer: Choose one of the answers that apply
A: When a time-out occurs
B: When a log switch occurs
C: When the shared pool is flushed
D: When a checkpoint occurs
20) In order to allow remote administration of users and tablespaces on an Oracle database, which of the following types of files must exist in the database?
Answer: Choose one of the answers that apply
A: Password file
B: Initialization file
C: Datafile
D: Control file
E: Nothing, SYSDBA privileges are not required for these actions.
21) You are planning the storage requirements for your database. Which of the following is an effect of maintaining a high PCTFREE for a table?
Answer: Choose one of the answers that apply
A: Oracle will manage filling data blocks with new records more actively.
B: Oracle will manage filling data blocks with new records less actively.
C: Oracle will leave more space free in data blocks for existing records.
D: Oracle will leave less space free in data blocks for existing records.
22) You manage database access privileges with roles where possible.
You have granted the SELECT_MY_TABLE role to another role, called
EMP_DEVELOPER. To view information about other roles that may be
granted to EMP_DEVELOPER, which of the following dictionary views
are appropriate?
Answer: Choose one of the answers that apply
A: DBA_ROLE_PRIVS
B: DBA_TAB_PRIVS
C: USER_SYS_PRIVS
D: ROLE_ROLE_PRIVS
23) In order to set your SQL*Plus session so that your NLS_DATE_FORMAT
information is altered in a specific way every time you log into Oracle,
what method would be used?
Answer: Choose one of the answers that apply
A: Setting preferences in the appropriate menu option
B: Creating an appropriate LOGIN.SQL file
C: Issuing the ALTER USER statement
D: Issuing the ALTER TABLE statement
24) You create a sequence with the following statement:
CREATE SEQUENCE MY_SEQ
START WITH 394
INCREMENT BY 12
NOMINVALUE
NOMAXVALUE
NOCACHE
NOCYCLE;
Two users have already issued SQL statements to obtain NEXTVAL, and
four more have issued SQL statements to obtain CURRVAL. If you issue a
SQL statement to obtain the NEXTVAL, what will Oracle return?
Answer: Choose one of the answers that apply
A: 406
B: 418
C: 430
D: 442

1.-
2.c
3.a
4.a
5.c
6.b
7.a
8.d
9.b
10.a -
11.a
12.c
13.b
14.d
15.c
16.a -
17.a
18.d
19.c
20.a
21. -
22.d
23.b
24.?
hope it helps u.
Thanks
Kuljeet

Oracle 8.1.7.4 32 bit and SGA size

hi gurus,
OS : solaris 5.8 64 bit
Oracle: 8.1.7.4 32 bit
i have seen documents saying that maximum SGA allocation possible is only 1.75 GB due to 32 bit application limitation.
is there a way in which we can allocate > 1.75 GB for the SGA granules?
any option like /AWE in windows?
thanks,
charles

OS : solaris 5.8 64 bit
Oracle: 8.1.7.4 32 bitAs far as i know mixing 32-bit database and 64-bit operating system is not supported - as 8i is.
Anyway with a 32-bit database you are basically limited to 2 GB per process. You can use "indirect_data_buffer" which will
enable you to increase your database block buffers > 2 GB....
Ronny Egner
My blog: http://blog.ronnyegner-consulting.de

Important conceptual question about Application Module, Maximum Pool Size

Hello everyone,
We have a critical question about the Application Module default settings (taking the DB connections from a DataSource)
I know that on the Web it is generally suggested that each request must end with either a commit or rollback when executing PL/SQL blocks "directly" on the DB without the framework BC/ViewObject/Entity service intervention.
Now, for some reasons, we started to develop our applications with thinking that each Web Session would reference exactly one DB session (opened by any instance taken from the AM pool) for the whole duration of the session, so that the changes made by each Web session to its DB session would never interfere with the changes made by "other" Web Sessions to "other" DB sessions .
In other words, because of that convincement we often implemented sort of "transactions" that open and close (with either commit or rollback) each DB session not in/after a single HTTP request, but during many HTTP Requests.
As a concrete example think of this scenario:
1. the user presses the "Insert" button. An HTTP request is fired. The action listener is executed and ends up with inserting rows in a table via a PL SQL block (not via the ViewObjects API).
2. no commit or rollback after the above PL/SQL block is done yet.
3. finally the user presses a "Commit" or "Rollback" button, firing the call to the appropriate AM methos.
Those three requests consist of what I called "transaction".
From the documentation it's clear that there is no guarantee that the couple AM istance + DB session is the same during all the requests.
This means that, during step 2, it's possible that another user might reference the same "pending" AM/DbSession for his needs and "steal" somehow the work done via PL/SQL after step 1. (This happens because sessions taken by the pool are always rolled back by default.)
Now my question is:
Suppose we set the "Maximum Pool Size" parameter to very a great number (always inferior to the maximum number of concurrent users):
Is there any guarantee that all the requests will be isolated in that case?
I hope the problem is clear.
Let me know if you want more details.

Thanks for the answers.
If I am right, from all your answers about resource avaiability, this means that even supposing the framework is able to always give us the same AM instance back from the AM pool (by following the session-affinity criterias), there is, however, no "connection affinity" with the connections from the DataSource. This means that the "same AM instance" might take the "a new DB connection", if necessary, from the connection pool of the DataSource. If that happens, that could give us the same problems as taking "a new AM instance" (that is, not following session-affinity) from the beginning, since each time an a new connection is taken (either via a new AM instance or via the same AM instance plus a new DB connection), the corresponding DB session is rolle back by default, clearing all the pending transactions we might have performed before with direct PL/SQL calls bypassing the AM services during the life cycle of our application, so that the new HTTP request will have a clean DB session to start to work with.

Maximum sga size per session

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