I am using Oracle Application Server 10gAs and Linux 4.
Our Test Application is access by users using 7778 port,i want just few users to access my test application(just admin user) and all other user should not get access to the application,even if they specify proper URL and port number.
Some access control policy using oracle application server 10gas.
For every connection, oracle listener creates a unique dynamic port. Is this can be made static port for all connection? This a query raised in our penetration testing.
Listener log Sample :
02-MAR-2012 17:40:28 * (CONNECT_DATA=(SID=ORCL)(CID=(PROGRAM=)(HOST=__jdbc__)(USER=oracle))) * (ADDRESS=(PROTOCOL=tcp)(HOST=10.1.3.12)(PORT=3773))
02-MAR-2012 17:39:31 * (CONNECT_DATA=(CID=(PROGRAM=)(HOST=__jdbc__)(USER=))(SERVICE_NAME=orcl)) * (ADDRESS=(PROTOCOL=tcp)(HOST=10.1.1.84)(PORT=38192))
I am working on oracle 11g and AIX.We were facing some blocking issues.For more investigation on the blocking sesssion we checked active session history of the database.Like session 'A' was blocked by session 'B' ...Now if we check infromation about sessions 'A' it is showing that this session was blocked by session 'B'.
But when we checked for session 'B' informaiton ,it is not showing any thing...from where we can get infromation about session B and in what all scenarios active session history does not show information about blocking session....
I want to create notification/ or triggered mail to my client and my dba group which will occur while session and user has been blocked. I want to create this procedure in 12c OEM.
View 3 Replies View RelatedI have an assignment, i am suppose to disconnect all the users that are blocking sessions for over three hours. Below is my code which is not working
Create or replace procedure b_user IS
Declare
ssid number;
serial number;
Begin
[code]......
I am using oracle 10g as server in my lab. I faced some problems initially, but later after increasing the USERS tablespace it is working fine.
But there is still one problem. During the query execution some queries will be blocked and it doesn't leave any consequent queries to execute from the same user.
The blocked sessions will be displayed in the admin page under blocking sessions link. There is a option to kill the session. But when i do that, it affects all the users and the connection will be lost to all the users. again I have startup the database from beginning.
My statspack reports are sometimes showing figures such as this from the Foreground Wait Events section:
Avg %Total
%Tim Total Wait wait Waits Call
Event Waits out Time (s) (ms) /txn Time
---------------------------- ------------ ---- ---------- ------ -------- ------
PL/SQL lock timer 1,430 100 6,982 4883 0.0 18.0
enq: TM - contention 3 0 6,438 ###### 0.0 16.6
db file sequential read 310,385 0 1,765 6 3.5 4.6
TCP Socket (KGAS) 12,593 13 180 14 0.1 .5
db file scattered read 23,673 0 87 4 0.3 .2
log file sync 19,409 0 82 4 0.2 .2
ksfd: async disk IO 1,680 0 29 17 0.0 .1
[code].....
The TM lock that occurred 3 times appears to be disastrous.Historically, this could be caused by missing indexes on foreign key columns.
How can I be alerted when this event occurs, so that I can do some real-time investigation into the sessions and the SQL that hit it? I suppose I could schedule a job to query v$lock/dba_waiters/dba_blockers every few minutes, but is there a better way? Any standard edition scripts for this?
how to avoid blocking locks.
View 27 Replies View RelatedI am new to performance tuning. One procedure is blocking and another is locking it.
SQL> @glockers
Oracle OS
INSTANCE SID TY Usernam SERIAL# SPID Process LMODE REQUEST
---------- ------ -- ------- ---------- ------------ ------- ------------------------------------ ------------------------------------
[code]...
writing a script where there is a blocking lock for more than 30 minutes ?
View 2 Replies View RelatedOne issue happens frequently in My database,Logwr process blocking other session,when i checked blocked session in v$session wait_class was commit and event was logfile sync,
EVENT# WAIT_CLASS
------ ----------------------------------------------------------------
116 Commit
116 Commit
116 Commit
116 Commit
116 Commit
116 Commit
115 Configuration
116 Commit
116 Commit
116 Commit
116 Commit
EVENT# WAIT_CLASS
------ ----------------------------------------------------------------
116 Commit
116 Commit
116 Commit
116 Commit
116 Commit
116 Commit
116 Commit
116 Commit
116 Commit
116 Commit
116 Commit
EVENT# WAIT_CLASS
------ ----------------------------------------------------------------
As per this we predicate Logbuffer Might be full so i just to reboot server,Note server was 32 Bit i can allocate only 1GB of SGA SYStem not allows me to increase SGA further. Server reboot is proper solution?
I am on database 10.2.0.5, windows x64.
A developer calls me and tells me there are locks on 3 tables, and the locks are not released. So I run this to see which objects are locked by which session
select vlo.object_id, vlo.session_id, vlo.oracle_username, vlo.process
, DECODE(vlo.LOCKED_MODE, 0,'NONE', 1,'NULL', 2,'ROW SHARE', 3,'ROW EXCLUSIVE', 4,'SHARE', 5,'SHARE ROW EXCLUSIVE', 6,'EXCLUSIVE', NULL) LOCK_MODE
, do.owner, do.object_name, do.object_type
[code]...
When I run the query later, I sometimes get another session, but the lock stays. It seems here, that I am catching the same SID on new sessions, but it is probably a different serial # than the original session locking the table rows.
I get nothing from
select * from dba_waiters;
select * from dba_blockers;
Now why are those 3 tables row locked on some rows and I can't find the session responsible? The developer tells me his application crashed and the rows are locked since. So far ( keep in mind I am not a locking expert) the only way I found to release the locks is a DB bounce, its a test DB so no biggy.
I need to encrypt network data for some DBs on one server but not for all of them. How can i achieve this?
Is it possible to encrypt conections on one port and not other?
I know i have to use SQLNET.ENCRYPT_SERVER in the sqlnet.ora file, but how can i do that for only on port?
We use shared servers for our application connections... when the database starts and randomly grabs a free port number for the dispatchers, we occasionally run into a port conflict - we also have tuxedo and several other processes that start after the database, that have pre-defined ports assigned. So if the dispatcher grabs port 52452 but say the workstation listener is defined to use that same port - once the WSL starts, we have a conflict.
I know we can pre-assign specific ports to the dispatchers; my concern with doing that is that we currently support roughly 150 customers remotely, all using our standard database configuration; many of these have multiple databases per server - in some cases, up to 10-15 databases. So manually managing specific ports on all of these would be tedious, to say the least... especially if some other third party app comes into play that happens to use one of the ports we selected, and we have to change everyone's ports again.
letting Oracle randomly pick a free port within the defined range.
if we add the known ports that are used in applications that start after the databases (the ones we end up in conflict with) to the /etc/services file - will that prevent the dispatchers from using those ports? Does Oracle search the /etc/services file to find used ports, before it assigns new ones out?
All servers are HP-UX, a mix of PA-RISC based and Integrity. Oracle versions are all 10.2.0.3, with a few at 11.2.0.2. Before anyone suggests it, moving away from shared servers is not an option; our application makes new database connects at every query - so thousands of connects / disconnects every hour; the overhead of spawning a new dedicated connection for every one if these is too great, and significantly slows down the application.
I have two databases on the same oracle 11g install. The first (ORCL) database uses the default port for EM (1158). However, I don't know what the second one uses. I go to the portlist.ini file, but it only has the entry for the default (ORCL) database.
View 3 Replies View RelatedI'm trying to get listener ports of database through a query. I have a third party tool, which connects to databases and runs select commands and get basic information like status, version, db name etc. I also need to see on which listern port that database is running?
View 1 Replies View RelatedI have local development Oracle 9i database in my Windows XP. I see it uses TNS Listener port 1521. For some reason it must be using port 8080 also or in the background because it seems to not let my local web container (Apache Tomcat which uses Port 8080) on the same workstation work when it (TNS Listener) is turned on. how I edit the Listener port number and if I do change the port number what other things do I need to change such as the OEM login settings to the local database
View 1 Replies View RelatedI have a two node RAC setup using SCAN, and I have two databases on it. Can they have the same port number?
View 7 Replies View RelatedI am using JDBC to run a few queries from my Java program (multi-threaded one).I am facing an issue where a select statement is blocking a delete statement. From the java code point of view, there are 2 different threads accessing the same tables (whith different DB connection objects).
When the block occurs (which i was able to find out from the java thread dump that there is a lock on oracle), the below is the output:
SQL> SELECT TO_CHAR(sysdate, 'DD-MON-YYYY HH24:MI:SS')
2 || ' User '||s1.username || '@' || s1.machine
3 || ' ( SID= ' || s1.sid || ' ) with the statement: ' || sqlt2.sql_text
||' is blocking the SQL statement on '|| s2.username || '@'
4 5 || s2.machine || ' ( SID=' || s2.sid || ' ) blocked SQL -> '
6 ||sqlt1.sql_text AS blocking_status FROM v$lock l1, v$session s1, v$lock l2 ,
7 v$session s2,v$sql sqlt1, v$sql sqlt2
8 WHERE s1.sid =l1.sid
9 AND s2.sid =l2.sid AND sqlt1.sql_id= s2.sql_id
AND sqlt2.sql_id= s1.prev_sql_id AND l1.BLOCK =1
10 AND l2.request > 0 AND l1.id1 = l2.id1 AND l2.id2 = l2.id2;
[code]...
From the above it can be seen that a select statement is blocking a delete. Unless the select is select for Update, it should not block other statements is not it ?
i want data receive from COM PORT. it's is Possible.Forms 6i and Oracle 8i
View 1 Replies View Relatedhow to to hide the port number from the linkof my oracle web application???I call my application through a url like:[URL]...
how can I customize this url??
How to know the oracle port no on localhost machine.
View 1 Replies View RelatedENV: Oracle 10gR2, RHEL 64bit on ASM (10gR2):
Current listener port is 1521. I have been asked to change it to 10526
I tried changing the port number in the listener.ora file and then restarting the listener but the I start getting "ORA-12541: TNS: no listener" error. If I change it back to 1521 and restart the listener, I am able to connect to the database. What else do I need to do to change the port #? After I change the port and restart, here is what I tried to test: $ sqlplus user/password@sid...ERROR:ORA-12541: no listener Enter user-name: When I rollback the port# change, I am able to login.
How to get a port number in database with a sql query.
View 10 Replies View RelatedWhile connecting my oracle with My JDBC driver . i got an SQLException:
public class Orajdbc {
public static void main(String args[])
{
try
{
Class.forName("oracle.jdbc.driver.OracleDriver");
Connection con = DriverManager.getConnection
[code]......
i am successfully connected by type 1 odbc driver but while i want to connect it with "ojdbc6.jar" file then i got this exception i already added that jar file to my Environment variable ClASSPATH ..
How to find port number of my Oracle Service?
i want to online my oracle 10g database but when i make connection string then i don't know what the port i set. I set default port 1521 but it not work on client site .
View 4 Replies View Relatedwhat will be the advantages and disadvantages of configuring database on only one port number for connecting the database server.
View 1 Replies View RelatedI'm trying to read some data from external device via COMM Port.
Application is running n server and device is connected localy on my PC.
My device iz DPI605R for purpose of� pressure measuring.
When I created a new oracle database the port number was 1521 (default), but I want to change it to 1522.
View 4 Replies View Relatedwe have a database available in UNIX machine A which can be connected from client in UNIX machine B through port 1521.
If we give ping command from UNIX machine A to B or B to A, 0% packet loss, means connection established properly through firewall in port 1521.
Now we are setup one more UNIX machine C and installed a client here. This machine is available in different group, means if i give ping command from machine C to A, 100% packet loss. But from machine A to C, connection established with 0% packet loss.Because of this, when we tried to connect to a database from client in Machine C to database in Machine A, we got "time out" error.
My query is:
1. Is this because of not opening of port 1521 through firewall?
2. If so, is it enough to open port 1521 through firewall when we connect from machine C to A?
3. Any additional setup is required in firewall apart from opening of ports?
Environment:
Oracle 11.2.0.3
UNIX AIX 5.3/6.1