RE: Limiting Concurrent Sessions Not Working

Sam Bootsma Fri, 06 Jun 2003 07:02:32 -0700

Hi Dick, Thanks for the tip. Metalink says the bug applies to RDBMS 8.0.4. I tested it as well, using a modified version of their test case. I did not encounter this bug at all.

Perhaps it is OK on Oracle 7.3.4?

Sam Bootsma

George Brown College

[EMAIL PROTECTED]

416-415-5000 x4933

-----Original Message-----
From: Goulet, Dick [mailto:[EMAIL PROTECTED]
Sent: June 4, 2003 4:15 PM
To: Multiple recipients of list ORACLE-L
Subject: RE: Limiting Concurrent Sessions Not Working

OK, now watch out for Oracle bug 643709 which can send your users a pile of "ORA-02394: exceeded session limit on IO usage, you are being logged off" even though you don't have any IO limits set. It's fixed in 8.1.x.

Dick Goulet
Senior Oracle DBA
Oracle Certified 8i DBA

-----Original Message-----
From: Sam Bootsma [mailto:[EMAIL PROTECTED]
Sent: Wednesday, June 04, 2003 3:30 PM
To: Multiple recipients of list ORACLE-L
Subject: RE: Limiting Concurrent Sessions Not Working

Bingo!

Thanks Dick, it is working now.

Sam

GBC

-----Original Message-----
From: Goulet, Dick [mailto:[EMAIL PROTECTED]
Sent: June 4, 2003 2:30 PM
To: Multiple recipients of list ORACLE-L
Subject: RE: Limiting Concurrent Sessions Not Working

Do you have "resource_limit = true" in init.ora? If you don't it defaults to FALSE & the profile has no effect.

Dick Goulet
Senior Oracle DBA
Oracle Certified 8i DBA

-----Original Message-----
From: Sam Bootsma [mailto:[EMAIL PROTECTED]
Sent: Wednesday, June 04, 2003 2:10 PM
To: Multiple recipients of list ORACLE-L
Subject: Limiting Concurrent Sessions Not Working

Oracle7 Server Release 7.3.4.5.0 (yes, I know, old); AIX 4.3.3

Hello All,

I am trying to limit concurrent sessions on my database. The Oracle documentation says I can do it. However, when I follow the steps (create profile with sessions per user set to one, then assign Oracle user to this profile) the user is not stopped from exceeding the number of concurrent sessions. I tested this by connecting using Sql Plus. I even tried bouncing the database, to see if that makes a difference, but to no avail.

Any ideas what is happening? Am I missing something? Is this a problem/bug with Oracle 7.3.4? The output below shows the steps I followed to create the profile and user. It also shows multiple connections to the database after bouncing the instance.

Thanks for any suggestions!

Sam.

SQL> create profile sam limit sessions_per_user 1;

Profile created.

SQL> create user sam identified by sam;

User created.

SQL> alter user sam profile sam;

User altered.

SQL> grant create session to sam;

Grant succeeded.

SQL>

SQL> l

1 select limit

2 from dba_profiles

3 where profile=''

4* and resource_name = 'SESSIONS_PER_USER'

SQL> /

LIMIT

----------------------------------------

SQL>

SQL> select profile

2 from dba_users

3 where username = 'SAM';

PROFILE

------------------------------

SAM

SQL>

SVRMGR> shutdown normal

Database closed.

Database dismounted.

ORACLE instance shut down.

SVRMGR> connect internal

Connected to an idle instance.

SVRMGR> startup

ORACLE instance started.

Total System Global Area 34122296 bytes

Fixed Size 38992 bytes

Variable Size 31797736 bytes

Database Buffers 2252800 bytes

Redo Buffers 32768 bytes

Database mounted.

Database opened.

SVRMGR> select osuser, username

2> from v$session;

OSUSER USERNAME

--------------- ------------------------------

oracle

oracle SYS

12 rows selected.

SVRMGR> select osuser, username from v$session;

OSUSER USERNAME

--------------- ------------------------------

oracle

oracle SYS

sam SAM

14 rows selected.

SVRMGR>

Sam

GBC

RE: Limiting Concurrent Sessions Not Working

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