clearing or flusing DIR_CACHE in DB2

[jpotucek]

We are running DB2 Connect Version v8.1.7.445

DB2 Connect is our passthru for the Distributed world to be able to talk to the mainframe databases.

We make infrequent changes to what Mainframe Databases are cataloged in DB2 Connect but when we do, we need the changes to be immediate.

What I have found is that we have DIR_CACHE=YES in our dbm config
so when I make catalog entry changes in the DB2 Configuration assistant, they do not take effect until I restart the DB2 Service. Since this is a Production box, I am looking for a command that will flush the DIR_Cache without having to cycle the DB2 Service.!!! Can anyone help? .

 

[fredericofonseca]

this may help you

http://publib.boulder.ibm.com/infoc...topic=/com.ibm.db2.udb.doc/admin/r0000300.htm

look for the IMMEDIATE keyword

Regards

Frederico Fonseca
SysSoft Integrated Ltd

http://www.syssoft-int.com

FAQ219-2884
FAQ181-2886

 

[jpotucek]

All I found on this link was this:

"When Freed:
When an the application process terminates, the application directory cache is freed
When a database manager instance is stopped (db2stop), the server directory cache is freed. "

so i guess what that means is evertime you catalog something new in DB2 Connect, you NEED to stop and start the Database Manager Instance on DB2 Connect. Not what I wanted to hear

 

[fredericofonseca]

link on the bottom.

http://publib.boulder.ibm.com/infocenter/db2luw/v8/topic/com.ibm.db2.udb.doc/core/r0001988.htm

Regards

Frederico Fonseca
SysSoft Integrated Ltd

http://www.syssoft-int.com

FAQ219-2884
FAQ181-2886

 

[sathyarams]

No, you do not need to stop/start when you add something new

If an entry is not found in the cache, it is read from the disk.

HTH

Sathyaram

For db2 resoruces visit

http://www.db2click.com

More DB2 questions answered at

http://www.dbforums.com/f8

&

http://www.idug.org/user/UserLogin.asp

 

[jpotucek]

What we have done is not added something new but changed some of the existing entries moved a couple of nodes to different systems and databases to different nodes.. I would have thought that with these types of changes that I would either have to flush DIR_Cache or Stop\Start DB2?

 

[fredericofonseca]

did you have a look at my second link?

Regards

Frederico Fonseca
SysSoft Integrated Ltd

http://www.syssoft-int.com

FAQ219-2884
FAQ181-2886

 

[jpotucek]

I missed that second link

That helps alot!! Thank you!