Idle sessions in the database

Similar Questions

• Active session on the database

  Hi all

  again, I have a question, this time about the rules and alarms.

  I found the rule on the total Session limit... This rule indicates the percentage of the database connection.

  My question is... where is the applicable rule for the number or percentage of Session Active, because it is active and Total Session are not the same thing. I use Oracle cartridge 5.7.5.2

  Maybe someone knows how to create the rule for number of Session Active, because this number is obviously on the dashboard.

  Thank you

  Nikola

  Hi Nicola,

  You can certainly implement such a custom rule because relevant data are already available in Foglight topology.

  You can create a custom rule using the topology summary of the session:

  

  Relevant metrics that are located under the path /clusters/ [instance X] /sessions_summary_data/ topology

  • active_sessions
  • active_sessions_pct

  If you don't know how to create a custom rule, please contact your account manager, Foglight and it will direct you to the relevant PSO object that it can create for you.

• Cannot open a session in the database

  Hello
  
  I have a problem to connect to my database 11.1.0.7 on linux 64.
  There have been migrated from 9.2.0.4 and everything was fine, but now I am not able to connect to the database.
  
  Go when I can connect is the startup of the database in RESTRICTED mode and I cold connection under sys (sysdba).
  
  But when I leave this mode, no one can connect.
  
  sqlplus is freezes and I have to kill this session.
  
  What could be a reason? All the settings?
  It's strange to me because he was working...
  
  Thank you.
  Kind regards
  Tom

  Cross-using the check job_queue_process

  SQL > show parameter job_queue_processes

  Then stop and start the database, see if the problem persists.

  Thank you
  http://www.DBAs-Oracle.com/

• "Face control" for applications at the opening session in the database

  I need to deny access to certain applications, except written request by me (oracle forms)
  
  I do the following
  
  1 beforehand (form krn_start), I add line dbms_application_info.set_module ('KIKIMARA', ");
  and after logon user, the module name "KIKIMARA" appears in v$ session.
  
  2 create the trigger for logons
  CREATE OR REPLACE TRIGGER AfterConnect AFTER LOGON ON DATABASE
  declare
  l_module_name VARCHAR (48);
  l_action_name varchar (32);
  BEGIN
  DBMS_APPLICATION_INFO.read_module (l_module_name, l_action_name);
  insert into audit_tab (l_module_name, sysdate) values;
  If l_module_name not in ('KIKIMARA') then
  raise_application_error (-20000, "Program error");
  end if;
  end;
  
  But all the user of any application of connections and audit_tab shows a column null with current sysdate.
  
  PS: when I start my form after module of logon user name "KIKIMARA" appears in v$ session
  
  Help, please. SOS!

  Sanjar wrote:
  Question for developers - how to change the module of ORACLE FORMS before logging?

  You can not set_module before logging. For an obvious reason - you are not connected :)
  You can try the workaround is to use dbms_job.submit in trigger AFTER logon.
  After 1 second, submit the procedure that will kill session if the module name is not KIKIMARA. This module time name must be already defined by shapes.
  Unfortunately no user-friendly messages in this solution...

  something like that:

  in the forms after LOGON

  dbms_application_info.set_module('KIKIMARA','');
  

  On the database:

  CREATE OR REPLACE TRIGGER AfterConnect AFTER LOGON ON DATABASE
  DECLARE
  l_job NUMBER(10);
  BEGIN
   FOR x IN (SELECT audsid
                   FROM v$session
               WHERE audsid = USERENV('SESSIONID')
               AND program = 'frmweb.exe') LOOP
         DBMS_JOB.SUBMIT(l_job, 'Audit_Kill('|| x.audsid ||');', SYSDATE+1/24/60/60);  -- 1 second
         COMMIT;
    END LOOP;
  END;
  

  CREATE OR REPLACE PROCEDURE Audit_Kill (p_audsid VARCHAR2) IS
  l_module_name VARCHAR(48);
  l_sid NUMBER(10);
  l_serial NUMBER(10);
  BEGIN
   SELECT module,  SID, serial#
   INTO  l_module_name,l_sid, l_serial
   FROM v$session WHERE audsid=p_audsid AND program='frmweb.exe'
   AND ROWNUM=1;
   INSERT INTO AUDIT_TAB VALUES(l_module_name, SYSDATE );
   COMMIT;
   IF l_module_name not in  ('KIKIMARA') THEN
    EXECUTE IMMEDIATE 'alter system kill session '''||l_sid||', '||l_serial||'''';
   END IF;
  END;
  

• detect Oracle Connection Manager sessions in the database?

  Hello

  I wonder if it is possible to tell if the user connected to the database through the Oracle Connection Manager proxy or directly.

  Thank you!

  1444209 wrote:

  Hello

  I wonder if it is possible to tell if the user connected to the database through the Oracle Connection Manager proxy or directly.

  Thank you!

  No, no way to detect

• Find the name of the database sessions via the database link

  Hello
  I have a database in which I can see a few sessions that are connected to this database of one of my server that hosts 2 databases. Now if I have queries session $ v on my local database, I can only find the host name in the column programme and module of v$ session view. How will I know what database, these sessions are established because I have two databases on the remote host, hence these sessions are estableshed.
  
  Thank you
  
  Salman

  Hello

  You can query the column process v$ session. This column contains the pid of the source database server process.

  You will find on your source machine (in your remote database of respectively two) out this pid belongs to what databases.
  If its unix, you can use (ps - ef | grep ) or if it is windows, then you can query the process $ v

  Concerning
  Anurag

• session per user = 1 does not work in the database?

  Dear all,
  
  A profile has been configured on the database with the parameter session_per_user = 1 , but it does not work on the database.
  
  the user can make n number of sessions to the database. What could be the reason profile does not work?
  Please sugeest solution...
  
  Kind regards
  Rajesh
  
  Published by: Rajesh.Rathod on March 17, 2009 03:34

  You must change resource_limit true
  Search for details of text fo in metalink Note 745752.1

• It is safe to kill idle session?

  Hello
  Recently working on the production environment I've met customer number of connection problem as follows
  
  sqlplus username/password
  
  SQL * more: release 9.2.0.4.0 - Production Wed Feb 25 15:46:31 2004
  
  Copyright (c) 1982, 2002, Oracle Corporation. All rights reserved.
  
  ERROR:
  ORA-00020: maximum number of processes (%s) exceeded
  
  
  After trying several times I connected and identified about 250 idle sessions of the only user of view V$ session.
  I have questions about this scenario.
  
  (1) I guess that inactive session consume processes, that triggered this error. Please correct me if I'm wrong.
  (2) is it safe to kill these idle without the approval of customers sessions because their status says they are 'INACTIVE '?
  (3) if not then, when idle, do these sessions are certain activities of long durations and because of their laziness oracle mark as inactive?
  
  My apologies for being naïve... :) Thanks in advance...

  Ashish payet wrote:

  (2) is it safe to kill these idle without the approval of customers sessions because their status says they are 'INACTIVE '?

  Yes - in a perspective of database instance. Oracle is very robust. It does not choke when a user session suddenly disappear.

  Course from the point of view of the customer? Not really. The client may always require this session - it may even have a unique transaction to validate.

  From a point of view s/n? Joy. Let me count the ways of contentment by waving the old lead pipe and killing sessions... ;-)

  (3) if not then, when idle, do these sessions are certain activities of long durations and because of their laziness oracle mark as inactive?

  You can watch the session $ v and that there should be a column that contains the current state of waiting for event time / elapsed (take a look at the Oracle Reference guide). If this wait state is SQL * Net client message or similar and the wait state has quite a long time (you set this number), then it would be wrong to kill the session in order to allow new.

  Another option is looking at shared server sessions. Here is the light weight in comparison to the server by default. For example a sessions 100 user may be services by 2 dispatchers and 10 shared - server process that oppose an almost 10 x more charge of a 100 process heavy process.

• Idle sessions of VMware

  Hi friends,

  We see too many idle session in the sessions vCenter tab. Although it should not harm immeidate, we always want to find a way to hollow compensation even some settings build-in if possible.

  Article, I came across what suggests to change the vpxdclient configuration file where vSphere client is installed. But in our various teams access infra vcenter from different client computers. Is it possible to clear the list of inactive session of vCenter settings the value?

  Thank you!

  Kind regards

  Hari.

  Idle session configured in vSphere client machine and RDP timeout as well through AD.

  Thank you!

  Hari.

• vCenter connections - Idle sessions hang out

  Hello

  We use the VI SDK 2.5 to Windows XP SP3 to connect to vCenter to QueryPerf to get data from the perf.

  A specific user account to connect to the vCenter.

  In some cases, we note that there are a few sessions 'dormant' left hanging out.  I see them listed in the console of Administration/Management/Sessions of the vCenter.  I think that these "idle sessions" when the application is connected to vCenter using the API and attempts a "logout" and disconnection fails for some reason any.  It is also possible, I think that, when the application terminates abnormally.  I noticed a case when there is an end to the session "inactive" after 30 minutes of inactivity.

  Is there anyway to make the API using the same session or inform not to create a new session, if it already exists for the user?  Something similar to a SQL Server how "connection pooling"?

  I appreciate any input in this case.

  Concerning

  I hope my blog can help you understand the session management:

  http://www.doublecloud.org/2010/02/the-mythical-sessions-in-vSphere-and-VI/

  http://www.doublecloud.org/2010/01/tips-on-session-management-for-scaling-your-server-applications-to-vSphere/

  Steve JIN

  Author of VMware VI and vSphere SDK (Prentice Hall)

  Open source (VI) vSphere Java APIcreator (tutorial, testimonials, download, samples, Forum)

  Blog: DoubleCloud.ORG ( Top 10 best practices[object model: http://www.doublecloud.org/2010/02/Object-Model-of-VMware-vSphere-API-a-Big-Picture-in-2-minutes/,] [common errors |]) http://www.doublecloud.org/2010/01/31/common-mistakes-using-vmware-vi-and-vsphere-sdk/], Tiny REST API, Cloud Application Architecture)

  Twitter: @sjin2008

• trace level of the user in the database.

  Hello
  
  I need emergency assistance. I wanted to take the trace of a perticular user sessions in the database. Could you please provide me with the steps to generate the trace of the user when the user connecting. In my case, when the connection of the user by the application, there are many session generated in the database. So I wanted to take the trace to the user level. I have Oracle 9i server.
  
  Thanks and greetings

  Probably the best for you would be to create a database trigger after the logon.

  CREATE OR REPLACE TRIGGER set_trace after logon on DATABASE
  BEGIN

  If the user = ('username') then
  run immediately "alter session set sql_trace = true";
  immediate ' alter events set "trace 10046 name context of session forever, level 12". "
  end if;

  EXCEPTION
  WHILE OTHERS THEN
  -Consider recording the error and then re-raise
  NULL;
  END set_trace;

  /

  You can read this thread as well:
  Oracle 9i - SQL Trace & Bind Variables

• Idle sessions are automatically generated in the database

  I am facing a strange problem to get the very large number of idle sessions generated th the database server which leads to closing of connection is.
  The error reads as "Failed to check-out a demand account held the failure of connection of the Application Module.»
  This happens whenever I execute the following code:
  
  String amDefName = "amendprgo.model.CSDInvFRCAmendPrgoServices";
  String configName = "CSDInvFRCAmendPrgoServicesLocal";
  ApplicationModule App1 = Configuration.createRootApplicationModule (amDefName, configName);
  String voInstanceName = "prgoHdrRO";
  ViewObject prgoHdrROVO = app1.createViewObjectFromQueryStmt (voInstanceName, "select * from INV_PRGO_HDR");
  prgoHdrROVO.setWhereClause ("PRGO_ID =" + tempRow.getAttribute ("PrgoId") +' and DEPOT_CD = '0' and ITEM_CAT = 'I3' ");
  prgoHdrROVO.executeQuery ();
  If (prgoHdrROVO.getEstimatedRowCount () > 0) {}
  Returns true;
  
  I know there is a process of creating a connection and the View object in part of model in JDeveloper, but I want to know why this problem occurs.

  As I said before

  Configuration.releaseRootApplicationModule(app1 , true);
  

  My advice is to read the links I gave you!

  Timo

• Sessions INACTIVE both in the database

  Hello
  
  In fact, PMON will be clear all inactive sessions database.
  
  But I can see there are sessions such as older then 3.4 days.
  
  Why PMON is not cleared. ?
  On what intervals PMON will make cleanup inactive sessions.
  
  
  --
  Thanks in advance.

  Hello;

  Process monitor (PMON) performs the recovery process when a user process fails.

  A session remains inactive because not he failed. I support some applications where users 'Camp' on until my profile settings to kill them.

  PMON doesn't have to kill an idle session so that it works as expected.

  If you want to set a limit to use of inactive profile. (IDLE)

  See Architecture of process - the doc Oracle "Database Concepts" and CREATE a PROFILE in "Database SQL Reference" for more information.

  Another way to look at it is that the Session is NOT running in SQL.

  Best regards

  mseberg

  Published by: mseberg on May 10, 2012 17:04

• Database does not start... ALTER database open; change the database open * ERROR at line 1: ORA-03113: end of file on the channel of communication process ID: 10400 Session ID: 418 serial number: 3 -.

  HI during startup of the database of the following errors is. Please help solve the problem.

  SQL > alter database open;

  change the database open * ERROR at line 1: ORA-03113: end of file on the channel of communication process ID: 10400 Session ID: 418 serial number: 3 -.

  ============================================================

  Please see the alerts log entries

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

  Commissioning:

  Oracle Database 11 g Enterprise Edition Release 11.2.0.1.0 - 64 bit Production

  With the options of partitioning, OLAP, Data Mining and Real Application Testing.

  Using parameters in spfile D:\APP\ADMINISTRATOR\PRODUCT\11.2.0\DBHOME_1\DATABASE\SPFILEATTNDPRD server-side. ORA

  Parameters of the system with default values:

  process = 400

  sessions = 624

  memory_target = 4G

  control_files = 'D:\ORACLE\ORADATA\ATTNDPRD\CONTROLFILE\O1_MF_8LRQYB0M_. CTL.

  control_files = 'C:\ORACLE\ORADATA\ATTNDPRD\CONTROLFILE\O1_MF_8LRQYB13_. CTL.

  DB_BLOCK_SIZE = 8192

  compatible = "11.2.0.0.0."

  log_archive_format = "ARC%S_%R.%T."

  db_create_file_dest = 'D:\oracle\oradata. '

  db_create_online_log_dest_1 = "D:\oracle\oradata".

  db_create_online_log_dest_2 = "C:\oracle\oradata".

  db_recovery_file_dest = 'C:\oracle\oradata\flash_area. '

  db_recovery_file_dest_size = 8G

  undo_tablespace = 'UNDOTBS1.

  Remote_login_passwordfile = "EXCLUSIVE."

  db_domain = «»

  dispatchers = "(PROTOCOL=TCP) (SERVICE = ATTNDPRDXDB)" "

  audit_file_dest = "D:\APP\ADMINISTRATOR\ADMIN\ATTNDPRD\ADUMP".

  AUDIT_TRAIL = 'DB '.

  db_name = "ATTNDPRD".

  open_cursors = 300

  diagnostic_dest = "D:\APP\ADMINISTRATOR".

  Sun 24 May 13:43:09 2015

  PMON started with pid = 2, OS id = 5792

  Sun 24 May 13:43:09 2015

  VKTM started with pid = 3, OS id = 6500 high priority

  VKTM clocked at (10) precision of milliseconds with DBRM quantum (100) ms

  Sun 24 May 13:43:09 2015

  GEN0 started with pid = 4, OS id = 13072

  Sun 24 May 13:43:09 2015

  DIAG started with pid = 5, OS id = 1424

  Sun 24 May 13:43:09 2015

  DBRM started with pid = 6, OS id = 8240

  Sun 24 May 13:43:09 2015

  PSP0 started with pid = 7, OS id = 2980

  Sun 24 May 13:43:09 2015

  DIA0 started with pid = 8, OS id = 12956

  Sun 24 May 13:43:09 2015

  MA started with pid = 9, OS id = 13356

  Sun 24 May 13:43:09 2015

  DBW0 started with pid = 10, OS id = 14248

  Sun 24 May 13:43:09 2015

  DBW1 started with pid = 11, OS id = 17900

  Sun 24 May 13:43:09 2015

  LGWR started with pid = 12, OS id = 5564

  Sun 24 May 13:43:09 2015

  CKPT started with pid = 13, OS id = 16736

  Sun 24 May 13:43:09 2015

  SMON started with pid = 14, OS id = 14068

  Sun 24 May 13:43:09 2015

  RECCE has started with pid = 15, OS id = 16288

  Sun 24 May 13:43:09 2015

  MMON started with pid = 16, OS id = 10884

  commissioning 1 dispatcher (s) for '(ADDRESS =(PARTIAL=YES) (PROTOCOL = TCP))' network address...

  commissioning or shared server 1...

  Environment ORACLE_BASE = D:\app\Administrator

  Sun 24 May 13:43:09 2015

  ALTER DATABASE MOUNT

  Sun 24 May 13:43:09 2015

  MMNL started with pid = 17, OS id = 16128

  Mount of redo thread 1, with mount id 3325657453

  Database mounted in exclusive Mode

  Disabled lost write protect

  Completed: ALTER DATABASE MOUNT

  Sun 24 May 13:43:23 2015

  change the database open

  Sun 24 May 13:43:23 2015

  LGWR: FROM PROCESS ARCH

  Sun 24 May 13:43:23 2015

  Arc0 started with pid = 21, OS id = 10084

  Arc0: Started archiving

  LGWR: FROM PROCESS ARCH COMPLETE

  ARC0: FROM PROCESS ARCH

  Sun 24 May 13:43:24 2015

  Arc1 started with pid = 22, OS id = 18400

  Sun 24 May 13:43:24 2015

  ARC2 started with pid = 23, OS id = 17280

  Arc1: Started archiving

  ARC2: Started archiving

  Arc1: become the "no FAL' ARCH

  Arc1: become the "no SRL" ARCH

  ARC2: Become the heartbeat ARCH

  Errors in the d:\app\administrator\diag\rdbms\attndprd\attndprd\trace\attndprd_ora_10400.trc file:

  ORA-19815: WARNING: db_recovery_file_dest_size 8589934592 bytes is 100.00% used and has 0 bytes remaining available.

  ************************************************************************

  You have choice to free up space in the recovery area:

  1 consider changing STRATEGY OF RETENTION of RMAN. If you are using Data Guard

  then consider changing POLICY of DELETE ARCHIVELOG RMAN.

  2 back up files on a tertiary device such as a tape with RMAN

  SAFEGUARDING RECOVERY AREA command.

  3. Add space drive and increase the db_recovery_file_dest_size setting to

  reflect the new space.

  4 remove the unnecessary files using the RMAN DELETE command. If a service

  the system control has been used to remove the files, and then use the RMAN DUPLICATION and

  Commands DELETE has EXPIRED.

  ************************************************************************

  Errors in the d:\app\administrator\diag\rdbms\attndprd\attndprd\trace\attndprd_ora_10400.trc file:

  ORA-19809: limit exceeded for file recovery

  ORA-19804: cannot recover disk 44571136 bytes limit 8589934592 space

  ARCH: 19809 error creating archive log file to ' C:\ORACLE\ORADATA\FLASH_AREA\ATTNDPRD\ARCHIVELOG\2015_05_24\O1_MF_1_10343_%U_. ARC'

  Errors in the d:\app\administrator\diag\rdbms\attndprd\attndprd\trace\attndprd_ora_10400.trc file:

  ORA-16038: log 2 # 10343 sequence can be archived

  ORA-19809: limit exceeded for file recovery

  ORA-00312: wire 2 1 online journal: ' D:\ORACLE\ORADATA\ATTNDPRD\ONLINELOG\O1_MF_2_8LRQYD8B_. JOURNAL"

  ORA-00312: wire 2 1 online journal: ' C:\ORACLE\ORADATA\ATTNDPRD\ONLINELOG\O1_MF_2_8LRQYDF6_. JOURNAL"

  USER (ospid: 10400): put an end to litigation because of the error 16038

  Sun 24 May 13:43:24 2015

  ARC3 started with pid = 24, OS id = 2188

  Errors in the d:\app\administrator\diag\rdbms\attndprd\attndprd\trace\attndprd_arc2_17280.trc file:

  ORA-19815: WARNING: db_recovery_file_dest_size 8589934592 bytes is 100.00% used and has 0 bytes remaining available.

  ************************************************************************

  You have choice to free up space in the recovery area:

  1 consider changing STRATEGY OF RETENTION of RMAN. If you are using Data Guard

  then consider changing POLICY of DELETE ARCHIVELOG RMAN.

  2 back up files on a tertiary device such as a tape with RMAN

  SAFEGUARDING RECOVERY AREA command.

  3. Add space drive and increase the db_recovery_file_dest_size setting to

  reflect the new space.

  4 remove the unnecessary files using the RMAN DELETE command. If a service

  the system control has been used to remove the files, and then use the RMAN DUPLICATION and

  Commands DELETE has EXPIRED.

  ************************************************************************

  Instance of stopped by USER, pid = 10400

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

  Regarding

  Ngoyi

  Hello

  Now it works very well... with following

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

  using sqlplus

  • Startup mount
  • ALTER database noarchivelog;
  • ALTER database open;

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

  Concerning

  Ngoyi

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

• Tab for claim to the Session of the monitor is by session or any database?

  There is Contention tab under Tools-> monitor Sessions. It updates whenever another session is selected in the list of the sessions above. If this tab shows claim through the entire database? or is it just show for this session if the session causes or experience any claim?

  The latter.

  If you look at the SQL code in this page, you can see that the WHERE clause limits the results of the current session of the main report - this is indicated with the: rating of SID.