Natural error code 16: Unable to open buffer pool

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1

What product/components do you use and which version/fix level are you on?

Windows Natural ver 6.3

Is your question related to the free trial, or to a production (customer) instance?

production

What are you trying to achieve? Please describe it in detail.

Investigated and checked found taht Natural program run but unable to log-out from the buffer pool.
Many same user-id existed in the user buffer pool until access the limit defined.
Please advise on how to exist from the buffer pool when the program run completed ?

Do you get any error messages? Please provide a full error message screenshot and log file.

Error 16: Unable to open buffer
" too many users logged onto the buffer pool"

Have you installed all the latest fixes for the products and systems you are using?

2

If your users are able to open multiple Natural sessions, that may be why you are seeing the same user id multiple times - perhaps you just need a higher maxusers setting.
I suggest that you open a support request with Software AG. Users logging off of Natural should normally be logged out of the buffer pool also. An upgrade to a current, supported version of Natural might also help.

3

Hi Kelly,
Thank you for your prompt reply.
I have trying to use “Backout transaction” and “terminate” command to exit from buffer pool, but look like is not working.
Is there any Natural command that able to log-out from buffer pool ?
How to clear or logging off the user from the buffer pool ?

4

“Backout transaction” is an Adabas command, nothing to do with the Natural buffer pool.

How high is your maxuser setting? have you tried increasing this value? As far as I know, you can only purge objects in the buffer pool, not users.

A support request to Software AG is probably your best bet.

5

You can clear all users by bouncing the Buffer Pool. I’m running Natural 9.2.1, but the instructions should be the same.

. Open Natural Buffer Pool (i.e. natbpmong.exe).
. NBP Menu bar → Bufferpool → Shutdown Server
. START context menu → Computer Management → Services and Applications → Services
. . restart SAG Buffer Pool Service via context menu or menu bar Actions
. NBP Menu bar → Bufferpool → Connect

6

Hi Kelly,
My MAXUSER is 60 users.
I think the scheduled program was not terminate completely causing the same user-id occupied almost 1/3 of the total defined users.

7

Hi Ralph.
Thank you for your reply.
I think the instructions will shutdown the bufferPool completely. All the users will be affected?
But i need to clear one particular user only (that one created many repeated same user in the Buffer pool).

8

Are you able to see that user’s instance(s) of NATURAL.EXE in Process Explorer (free from Microsoft)? Process Explorer can kill those instances.

1 Like
9

Hi Ralph,
Look like it is working. Thank you very much.
The repeated same user had been killed from the buffer pool, but the index number is not refresh.

Thank you.

10

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