SAP Freeze for 30 minutes
Dear gurus,
In our SAP production environment, SAP frequently hold for some minutes, ranging from 10 to 30 minutes.
When that happens, no users can logged onto SAP System (Waiting for system response in SAP Logon).
When that happen, I can't do anything except restarting SAP Server.
We rarely do an update record nor an intensive report program when that happened,
Where can I check the initial problem for this?
For information,
Our system running on AIX 5.2 Oracle 10.0.2.0 with 16GB Memory (SAP ECC 6.0).
The Detail:
Buffer size:
ABAP Programs: 900000 KB
Nametab: 89996 KB
Generic key table: 97657 KB
Single key table: 90000 KB
CUA information: 10000 KB
Screens: 19532 KB
No of Work Process:
Dialog: 25
Update (V1): 6
Update (V2): 3
Enqueue: 1
Background: 3
Spool: 4
Initial / max. swap requirement: 11154 MB / 13062 MB.
Even when the users is only 5, the memory could drop to only 200MB in the server (as in ST06).
I do not know what consume the high memory.
Also, when I go to DB02, an see the space, it shows blank record.
That is, the used space, total DB size, is 0. I have checked that SAPOSCOL is running.
Thanks for gurus help.
Regards,
Hi Bobby
There could be more than one issues in your system.
> no users can logged onto SAP System (Waiting for system response in SAP Logon).
When this happens, check ORAARCH directory under SAPDATA_HOME. If this directory is full, database goes to dormat state and until and unless this directory is free ( free space is there) database wont allow any user to get it.
What is the frequency of your archive log job? Check https://service.sap.com/sap/support/notes/391
>Even when the users is only 5, the memory could drop to only 200MB in the server
Could you find any reason of this high memory consumption from OS level, you can check the PID from there and then from sm50 you can check which program is using maximum meory. Also check from ST02 what is the number of swapping for important buffers , like program buffer. What are the values of "Commit charge limit Kb" and "Commit charge free Kb" from ST06 when you see this memory bottleneck?
>Also, when I go to DB02, an see the space, it shows blank record.
Run RSORAT0D report and then check again. Clickking Rfresh on the DB02 first screen will run this report for you or else you can run it from SA38 or se38 directly
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