Slow database connections due to large listener.log

hi gurus
A 9.2.0.8 database running on AIX system,it took nearly 1 seconds to make a connection to the database. I cleared the listener.log which is around 1.2g and restart the listener and the problem solved.
I want to why this happed?Does large listener.log will degrade the performace of listener?
Thanks in advance!

Hi,
Yes, i also faced the same issue and after trimming the listener log, problem got resolved. As far my knowledge as big the log file is it takes time to write in log file (its a general concept if you have notepad file of 100MB and want to write something end of the file then it takes time to load in memory or moving cursor to last position for writing, same concept is here).

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Hello!
I need a help.
Database 11R2 works under MS Windows Server.
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Edited by: kogotok1 on Feb 4, 2013 4:54 PM

Thank you.
But in the same time - when I see in alert log those error messages ora -12560, 12537,12535,12570 and so on - clients programs, whiie try to connect, hang up.
For sql plus takes 20 minutes to connect.
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my question :
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This is basically not a RMAN problem,but a media management issue,which has to be addressed to the TSM staff:
ANS1314E
File data currently unavailable on server
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'/physical_standby1/thread1_dest/arcr_1_7.arc';
SQL> ALTER DATABASE REGISTER LOGFILE
'/physical_standby1/thread1_dest/arcr_1_8.arc';
After you register these log files on the physical standby database, you can restart Redo Apply.
Note:
The V$ARCHIVE_GAP fixed view on a physical standby database only returns the next gap that is currently blocking Redo Apply from continuing. After resolving the gap and starting Redo Apply, query the V$ARCHIVE_GAP fixed view again on the physical standby database to determine the next gap sequence, if there is one. Repeat this process until there are no more gaps.
Restoring the archived logs from the backup set
If the archived logs are not available in the archive destination then at that time we need to restore the required archived logs from the backup step. This task is accomplished in the following way.
To restore range specified archived logs:
Run {
Set archivelog destination to '/oracle/arch/arch_restore'
Restore archivelog from logseq=<xxxxx> until logseq=<xxxxxxx>
To restore all the archived logs:
Run {
Set archivelog destination to '/oracle/arch/arch_restore';
Restore archivelog all;
}

THE DATABASE CONNECTION IS LOST :;; WIERD ORA-01012 NOT LOGGED ON ERROR

ERROR: ORA-01012 NOT LOGGED ON ERROR
I AM USING A JAVA SWING INTERFACE (JDK 1.1.8), WHICH USES JNI TO CALL C PROGRAMS WHICH IN TURN CONNECTS TO THE DATABASE, ORACLE 8.1.6.
A DATABASE CONNECTION IS ESTABLISED IN THE MAIN CLASS BY CALLING A FUNCTION FROM THE CONSTRUCTOR.
FOR ALL OTHER FUNCTION CALLS WHICH ARE MADE FROM WITHIN THIS CONSTRUCTOR, THE CONNECTION STAYS.
BUT AFTER THE CONTRUCTOR CALL IS COMPLETE, DATABASE CONNECTION IS STRANGELY LOST. THUS ALL OTHER FUNCTION CALLS FAIL BECAUSE OF CONNECTION ISSUES GIVING ORA-01012. THOUGH IF I CHECK UP IN THE DATABASE, THE CONNECTION DOES FIND AN ENTRY.
SO IT APPEARS THAT SOMEHOW THE JAVA INTERFACE LOOSES TRACK OF CONNECTION. BUT STRANGELY ALL THE FUNCTIONS WORK IF CALLED FROM THE CONSTRUCTOR......... BUT THATS NOT THE IDEA.
PLEASE HELP, THIS PROBLEM IS BUGGING ME FOR WEEKS NOW.
THANKS
AMIT

apologise for the caps lock.
i am working on a previous system with java swing front end which alread uses jni, and connects to database using pro *c.
My problem is that the connection is lost as soon as the constructor of the main class is run, giving an
ORA-1012 NOT LOGGED ON ERROR.
But if i place the same calls in the contructor all the database call work.
It somehow appears that the java interface looses the connection context. Though the session does find entry in the oracle dynamic tables as long as i dont close the front end main window, thereby meaning that its the jave interface which looses the context.
part of the code of the main class eiquser.
//constructor
public EiqUser() {
     super();
     initMRI();
private void initMRI() {
     try {
          /* initialize geoManager environment */
          int rccc = new EiqCfuncs().eiqInitEnv();
//eiqinitenv is a c function which connects to database using pro *C
          EiqCfuncs cfuncs = new EiqCfuncs();
          //EiqCfuncs has the prototypes of c functions used bye the java interface
          this.ivjFileMenu.setText(cfuncs.eiqGetText(resNum.getTEXT_FILE_MENU())); // sets the menu name
and so on.........
public void eiqUser_WindowClosed(java.awt.event.WindowEvent windowEvent) {
     new EiqCfuncs().eiqTermEnv(); // gives ora-1012 error
//eiqtermenv is supposed to disconnect from data base, but returns an ora-1012 not logged on erro
     return;
//eiqtermenv closes the connection with the data base. But fails in this case. if i place the same call ( eiqtermenv) in the initMRI function or the contructor it succeeds.
Plus if i dont use the java interace and use a c stub for executing the same sequence of functions, then i dont face any problems.
the proc calls exectuted ultimately by...
:::eiqinitenv
exec sql connect using :sqlid identified by sqlpw; // succeeds giving sqlerr.sqlcode=0;
::::eiqterm env
exec sql commit work; //fails giving 0ra-1012 error
exec sql rollback work;
Why is the java interface loosing track of the connection once done with the constructor of the main class?? The session still finds an entry in the oracle dynamic tables.
Please help
Thx
Amit

CR XI not responding when connecting to a large visual fox pro database

Using Microsoft FoxPro VFP Driver (*.dbf) I cannot connect to a large (100mb) visual fox pro database. Any suggestions would be welcome.

Hi Tim,
First thing to do is upgrade for free to CR XI R2 SP 6:
https://smpdl.sap-ag.de/~sapidp/012002523100011802732008E/crxir2_sp4_full_build.exe
https://smpdl.sap-ag.de/~sapidp/012002523100015859952009E/crxir2win_sp6.exe
Use your XI keycode when installing.
Not Responding is actually misleading, It's how Windows works, CR is waiting for the database info, tables, fields, etc. to be returned from the DB file and Windows defaults to Not Responding while this is going on. If you wait, and not sure if you did, Windows should return control to CR.
Try using ODBC or OLE DB to connect also.
Thank you
Don

Allow grid control agent to connect to a database as sys with no listener

Hi
I have a database which I would like to monitor using the 10g grid control agent.
the agent and DB are on a Unix Box
The database has a listener, but because it is part of a contingency system we keep the listener shut down
my question is:
Is it possible to configure the agent to connect to a Database (as sysdba) without the listener for that database running?
Regards
Graham
Edited by: Grahambo on May 14, 2009 5:41 AM

No its is not possible if listener is not running

Slow Initial Database Connection

I think I have a slowness issue with the initial Oracle database connection. When I try to connect initially, the connection , it takes a long time. Is there anyway to speed this up...
I am using encryption and jdbc on oracle.
This takes a good 20 - 30 seconds....
Class.forName("oracle.jdbc.driver.OracleDriver");
PARAMETERS.put("oracle.net.encryption_client","REQUIRED");
PARAMETERS.put("oracle.net.encryption_types_client","DES40C");
PARAMETERS.put("oracle.net.crypto_checksum_client","REQUESTE");
PARAMETERS.put("oracle.net.crypto_checksum_types_client","MD5");
PARAMETERS.put("user",user);
PARAMETERS.put("password",password);
connect = DriverManager.getConnection(dbUrl,PARAMETERS);

Didn't I answer this question?
The process of encrypting the connection, and generating MD5 checksums for each message sent over that connection both take considerable time to set up and the only way to make it go faster is to throw more processing power at it (i.e., get a faster computer), or switch to a far weaker form of encryption (but that means we can break the code in mere minutes).
This is a known feature. This is why the National Security Agency (NSA) and the National Reconniassance Office (NRO) have more supercomputers than any other US Government Agency.
If time really is a factor, then I suggest that you drop the MD5 requirement. MD5 essentially confirms that you have received all of the data you are expecting (and in a particular order) and no more than that. Attempting to decrypt DES also confirms that you have received all of the data you wanted (in the correct order) and no more than that. In other words, the two functions are redundant.
However, MD5 is a one way function whereas DES is two way; DES allows you to decrypt the message itself, but MD5 only allows you to confirm that the message is genuine. Hence, drop MD5 in favor of DES.
If you're really interested in rewriting the DES and MD5 schemes for more speed, do some reading on the cryptography forums, or check out an appropriate book at the library.

Slow database connections due to large listener.log

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