Server Administration :: Database Resident Connection Pooling?
Jan 3, 2011
[URL]... says that session memory is maintained in the PGA (unlike shared server) and then gives a calculation for memory usage that I don't understand: it suggests that instead of there being one PGA per session, there is one PGA per pooled server plus a small allocation of 35k per session, but this is not what I see.
It's easy to demonstrate. As sys,
exec dbms_connection_pool.start_pool
and then launch any number of session with
sqlplus scott/tiger@127.0.0.1:1521/orcl:POOLED
and you'll see a process called Lnnn launched for each session:
[code]...
There is a mention of a process called the connection broker, but I can't see this in v$process.There is more detail in the OCI developers guide [URL]... which goes beyond my knowledge of application development.
I have created different scripts to monitor growth planning of the database my idea was generate a simple output file to a directory and create a report and send it as mail thru mail server. but the client requested me to create new schema and population all the stats i have collected into the tables in this schema .
How to pool all the stats from different databases into this new schema efficiently.
We are currently using OCI to connect to Oracle DB using c language. Each process has its own dedicated Connection and Env handle, session handle ...
Right now we decided to use Connection Pooling. In the documentation , Connection pooling examples were using multi-threaded environment. But in our case its multi-process system and we cant modify products architecture to multi-thread.
I would like to know how we can use Connection Pooling on multiple processes.
Database Connection failure. Reason: java.sql.SQLException: ORA-01034: ORACLE not available ORA-27101: shared memory realm does not exist SVR4 Error: 2: No such file or directory
I'm not an Oracle expert, but I have research a little and seems that the SID could be wrong or that the DB is down, in fact I have already checked trhe server but everything seems normal to me.
While after connecting to server via my userid( its an externally id) ,after setting ORACLE_HOME and SID, while entering sqlplus / command,its not connecting.Error am getting is:-
ERROR: ORA-01034: ORACLE not available ORA-27123: unable to attach to shared memory segment HP-UX Error: 22: Invalid argument
SQL*Plus: Release 10.2.0.1.0 - Production on Fri Apr 12 11:07:15 2013
Copyright (c) 1982, 2005, Oracle. All rights reserved.
ERROR: ORA-12518: TNS:listener could not hand off client connection
Below is alertlog entry
Completed: alter database open Thu Apr 04 17:06:19 2013 db_recovery_file_dest_size of 4096 MB is 0.00% used. This is a user-specified limit on the amount of space that will be used by this
How to determine number of connections establishing from application server to database server for a particular user and also query the user is running in database.
user -- application user created in database. same user exist in application.
I am trying to create a job that will execute a shell script on a remote server (Server B) when an existing job, on the local server (Server A), completes.
I have spent the last couple of days combing through Metalink, Oracle Documentation, AskTom, and Google. I know this is a relatively "new" feature/ability - released with 11.2 - but this particular error stack is no where to be found. I have attempted to be completely thorough with the information I provided, along with being diligent about masking important configuration information.
While the calling Job is starting the second job, the second job appears to timeout at 60 seconds and the job status is reported as failed with this error stack:
ORA-12537: TNS:connection closed ORA-06512: at "SYS.DBMS_ISCHED", line 4921 ORA-06512: at "SYS.DBMS_ISCHED", line 6853 ORA-29273: HTTP request failed ORA-06512: at "SYS.UTL_HTTP", line 1130 ORA-29261: bad argument ORA-06512: at "SYS.DBMS_SCHEDULER", line 3975 ORA-06512: at line 1
Configuration information:
Server A and Server B OS Version/Kernal Information: Oracle Linux Server release 5.8 x86_64 2.6.32-300.24.1.el5uek
Remote Scheduler Agent version, on both servers is: 11.2.0.3.1
Here is the listener status on Server B for db2:
serverb $$ lsnrctl status listdb2 LSNRCTL for Linux: Version 11.2.0.3.0 - Production on 23-JUL-2013 11:39:27 Copyright (c) 1991, 2011, Oracle. All rights reserved. Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=***))) STATUS of the LISTENER
[code]...
I have configured both servers with remote Scheduler agents and both databases have been configured and registered with the agents.
I have executed the shell script on Server B and it performs as expected.
I have the primary job calling the remote job, and that is performing as expected.
I have tested the connection from DB1 on Server A to DB2 on Server B with this
SQL> set serveroutput on SQL> DECLARE 2 versionnum VARCHAR2(30); 3 BEGIN 4 versionnum := DBMS_SCHEDULER.GET_AGENT_VERSION('ServerB.someplace.net');
[code]...
and I have tested the connection from DB2 on Server B to DB1 on Server A with this
SQL> set serveroutput on SQL> DECLARE 2 versionnum VARCHAR2(30); 3 BEGIN 4 versionnum := DBMS_SCHEDULER.GET_AGENT_VERSION('ServerA.someplace.net');
how many maximum connection, a particular user can have in oracle. and how many maximum connection if user has 'resource profile' as default.and i am using oracle 11.2.0.1.0
My application is using "Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - 64bit Production" and Oracle 11g client v11.1.0.6.0.My application server runs continuously and checks for new requests. But problem occurs when I do not send any request to my server for 40-45 minutes i.e. server is idle or doing nothing except checking new incoming requests for those 40-45 minutes. After that if I try to connect my server by sending some request, it shows following error message and my server crashes:
Message String: ORA-03135: connection lost contact Process ID: 7586034 Session ID: 61
How to find the sid from v$session of my current session.
I want to ask:
Let say I have open 10 TOAD session and only in one toad session i have fired a sql query ( the rest 9 session are just blank), then the rest 9 status are in active status. Now, how i can figure out which sid ( from v$session ) belongs to which session as all the 9 session having nothing to run.
Quote: My main intention is to find out the current session sid as soon as it make connection with DB.
I was able to connect to the above server from my machine.But when i was trying to connect the above server from my neighbours system i am getting an error Network adapter could not establish the connection.
Note:when i ping the ip address 10.10.50.50 from my negihbours system in the command prompt
Reply from 10.10.50.50:bytes=32 Reply from 10.10.50.50:bytes=32 Reply from 10.10.50.50:bytes=32 Reply from 10.10.50.50:bytes=32
If the temp space left is 0%, i.e. all temp space used up, is it possible to make new DB connection ( can new users still connect to the DB)?
Or re-phrasing the question... How much of temp space (if at all ) is required for a new user to login to DB? Like SORT_AREA_SIZE in PGA. So, as memory sort area is already used ( Temp space is 100% full), can DB make more new connections?
I have one query related to database connection from server to client.I have one database in the server and I want to connect from client.I set the tnsnames in client system as follows.
Suppose my oracle database server IP is 128.1.1.100 in the office & the internet static IP is 115.118.33.100 is on that server. I want to retrieve the data by using oracle forms & report from my home's computer having different internet IP 115.118.33.25 on my home's computer.
what would be the settings on my home's computer for the same. i mean tnsname.ora file or any other setting.
i am installing oracle database 8.1.7 on dell server power edge 2650 first time database successfully installed but when i want to crate new database by Database Configuration Assistant it is not working for new database creation.
i am trying to install Oracle 10.10.2.0 on Windows Server 2003 standard x64 Edition Service Pack, but when i try to run the installer or open DVD it gives me below error.
"The image file D: is Valid, but is for a machine type other than the current machine."
I have to migrate production database version 10gR2 on windows 2003 server to oracle 11gR2 on windows 2008 server . So far i have just installed the oracle software on 64bit windows 2008 server. How to move the data or migrate from old server to new server .
I am trying to find the unix process for one of my application in the database but I am unable to view the same. To simulate, I did the following.
1. My database runs on different server. 2. I invoked "sqlplus" from another unix box to login to the database. 3. I found that the process id (ps -ef |grep sqlplus). 4. When I execute the below mentioned query it does not display the process id that I am looking for. But the osuser, username, program and machine details are correct. How can I know the process details from the database?
SELECT SYS.GV_$SESSION.OSUSER, SYS.GV_$SESSION.USERNAME, SYS.GV_$PROCESS.SPID, SYS.GV_$SESSION.MACHINE, SYS.GV_$SESSION.PROGRAM, SYS.GV_$PROCESS.PROGRAM ,SYS.GV_$SESSION.SQL_ID FROM SYS.GV_$PROCESS, SYS.GV_$SESSION WHERE SYS.GV_$PROCESS.ADDR=SYS.GV_$SESSION.PADDR and SYS.GV_$SESSION.USERNAME='TEST' and SYS.GV_$SESSION.MACHINE like '%hostname%'
I have database in single server. I already have ORACLE_SID=stagedb. So i want to create new sid and named as proddb.Is it possible have multiple db in single server? This server not running as RAC. It run as single only.
database administration , we are planning to use amazon cloud database , this database does not allow us to login to server machine , unfortunately amazon don't provide ssh to this machine , in general for doing any of adminstration task on the database will there be need to log into the machine ? we can always log in through toad or any other sql client but we cannot do ssh to server..general can this limitation effect administration ?
I recently installed Oracle 10g on my windows Xp laptop. It has become considerably slow since then. I want to start the database server only when I need it, and not every time I start my laptop. I looked around in OEM and did found a way.
I am connected as System. It was the only user I set-up a password when installed the database on personal computer.
SQL> alter user sys identified by mypass007 2 / User altered. SQL> connect sys/mypass007 ERROR: ORA-28009: connection as SYS should be as SYSDBA or SYSOPER
We have an Oracle Server database of Size 50 GB having 10 GB Data. And Planning to have a new Database Server of 200GB . So my question is after moving all the 10 GB data to 200 GB Database Server, will the performance of the system come down? Will it reduce the speed?
Can I extract data from our Oracle server regarding the no. of sessions per day? But the problem is that our Boss wants a previous dates from April 11-17, 2011.
I have some requirement wherein I need to install Oracle 9i database server (9.2.0.7). I am not getting it on Oracle website. where can I get the download.
see as i said keep on my database down in the night time around 9 pm. the OS redhat linux 5 restarting morning around 6.45 am.when i check alert_log there is no indication.when i check OS log , OS restarting around 6.45 amchecked in the log file in OS level
location: /var/log
i found this
Jun 7 06:45:33 Alraya syslogd 1.4.1: restart. Jun 8 06:42:22 Alraya syslogd 1.4.1: restart. Jun 9 06:47:12 Alraya syslogd 1.4.1: restart.
what is this mean, system restarting around 6:45 daily i think now i m posting listener.log for reference
OS is restarting around 6.45 in the morning, but database getting down night around 9 pm itself why then in the morning if i bounce the database it starting with no problem
i m facing a problem in my databse when going to startup. sql> startup ora:00824- can not set sga_target due to existing inernal setting see alert log for more information . when i checked the alert log file i found
cannot set sga_target with statistics_level=basic. acutally last time i change the parameter statistics_level=basic scope=spfile (typical to basic).now my database is not open.what can i do to startup the database.I have no any type of backup.
I tried updating the oracle database from version 11.2.0.1 to 11.2.0.3 but I have no clear procedure. I chose the option of the installer "upgrade database" and install the software on a new home. To migrate, must be all oracle services stopped? In the migration phase, it is normal to ask me listener data, etc .... or installer now detects the same database?
