Critical Memory Status

[Former Member]

Hello,

Can some explain what to do under the below given circumstances?

Attention: Critical Memory Status! p10 80% memory

System:                                       SID

Program run from:                       27.05.2014   15:45:21

Threshold Roll Area:                    80.00 %

Threshold Paging Area:               80.00 %

Threshold Extended Memory:        80.00 %

Instance                                   Role Area          Paging Area         Extended Memory

-------------------------------------------------------------------------------------------------------------------------------

sapxxxxx_SID_01                             5.66                14.36                   89.35

Thanks,

uday

[alwina_enns]

Hello Uday,

you have to check, what has consumed this memory and if you can increase values for some memory parameters. Please check ST22 for memory dumps, and please check ST02 (history for extended memory and heap), if the instance regularly consumes this amount of memory. Which operating system and which basis/kernel release has the system?

regards, Alwina

[Former Member]

Hi Alwina,

Thanks for the reply.

SAPKB70027 - Basis component

SAP Kernel :  720_EXT_REL

Kernel Patch number : 420

Dump "TSV_TNEW_PAGE_ALLOC_FAILED" occured once today.

What happened?

    You attempted to extend an internal table, but the required space was

    not available.

Error analysis

    The internal table "\FUNCTION-POOL=SKBH\FORM=FB_SUBTOTALS_GET\DATA=<IT_HTAB>"

     could not be further extended. To enable

    error handling, the table had to be delete before this log was written.

    As a result, the table is displayed further down or, if you branch to

    the ABAP Debugger, with 0 rows.

    At the time of the termination, the following data was determined for

    the relevant internal table:

    Memory location: "Session memory"

    Row width: 2156

    Number of rows: 45523

    Allocated rows: 45523

    Newly requested rows: 4 (in 1 blocks)

Thanks and best regards,

uday

[alwina_enns]

Hello Uday,

was this dump created at the time "27.05.2014   15:45:21" when you have got "critical memory status"? In this dump a section about memory consumption should be there, could you please check this section how much memory was allocated?

regards,
Alwina

[Former Member]

Hi Alwina,

TSV_TNEW_PAGE_ALLOC_FAILED occured at 16:37: and the Memory consumption details are as below:

Memory consumption

Roll.... 9523712

EM...... 4001266640

Heap.... 4000051968

Page.... 827392

MM Used. 7749347736

MM Free. 222262680

Regards,

uday

[alwina_enns]

Hello Uday,

around 8 GB memory was used, this is a huge amount of memory for a program. Could you please have a look at ST02 at this section:

What do you see in the column "In Mem", how much memory can be allocated by the instance? And what are the values for "MaxUse"?

regards,
Alwina

[Former Member]

Please find the screnshot.

Thanks for the help!

uday

[alwina_enns]

Hello Uday,

this instance can allocate around 42GB extended memory, the instance has used maximum around 9,5GB memory since last restart, so this instance did not use 80% memory like you have posted originally. Is this ST02 output from the correct instance (just to be sure)? In ST02 --> Environment --> RFC server you can switch between instances, could you please check, if you have the output from the instance sapxxxxx_SID_01 like in your original post?

regards,

Alwina