ztta/xxx memory parameter dump

[Former Member]

Hello All,

I have ECC6.0 , Oracle ,Sun solaris system. I am getting memory related dump in PRD. after going thru some notes, we are planning to change the value ztta/roll_first value from 1 to 2 , SAP default value is 1. does any one know why we should be changing this value and what is the impact on the system after changing this value.

Regards

Atul-

[markus_doehr2]

> I have ECC6.0 , Oracle ,Sun solaris system. I am getting memory related dump in PRD.

What dump?

> after going thru some notes, we are planning to change the value ztta/roll_first value from 1 to 2

What notes?

Markus

[Former Member]

ABAP dump

Runtime Errors TSV_TNEW_PAGE_ALLOC_FAILED

Short text

No more storage space available for extending an internal table.

If the error persists, ask your system administrator to check the

following profile parameters:

o ztta/roll_area (1.000.000 - 15.000.000)

Classic roll area per user and internal mode

usual amount of roll area per user and internal mode

o ztta/roll_extension (10.000.000 - 500.000.000)

Amount of memory per user in extended memory (EM)

o abap/heap_area_total (100.000.000 - 1.500.000.000)

Amount of memory (malloc) for all users of an application

server. If several background processes are running on

one server, temporary bottlenecks may occur.

Of course, the amount of memory (in bytes) must also be

available on the machine (main memory or file system swap).

Caution:

The operating system must be set up so that there is also

enough memory for each process. Usually, the maximum address

space is too small.

Ask your hardware manufacturer or your competence center

about this.

In this case, consult your hardware vendor

abap/heap_area_dia: (10.000.000 - 1.000.000.000)

Restriction of memory allocated to the heap with malloc

for each dialog process.

Parameters for background processes:

abap/heap_area_nondia: (10.000.000 - 1.000.000.000)

Restriction of memory allocated to the heap with malloc

for each background process.

Other memory-relevant parameters are:

em/initial_size_MB: (35-1200)

Extended memory area from which all users of an

application server can satisfy their memory requirement.

The amount of storage space (in bytes) filled at termination time was:

Roll area...................... 6219104

Extended memory (EM)........... 2002781760

Assigned memory (HEAP)......... 2000066784

Short area..................... " "

Paging area.................... 40960

Maximum address space.......... 18446744048922169696

OSS notes refer:

See SAP Note 425207 for parameter limitations

OSS note #146289

Also, see the attached notes:

#020527 Runtime error TSV_TNEW_PAGE_ALLOC_FAILED

#217262 Runtime error text for TSV_TNEW_PAGE_ALLOC_FAILED

#185185 Application: Analysis of memory bottlenecks

Regards

Atul-

[Former Member]

Hi,

this change doesn't make any sens

>ztta/roll_first value from 1 to 2

this change can be applied when RAM is overloaded, and change it at least to 1024.

BTW this will slow down your system, in reality you will go 10 years back with memory

management

Regards,

Mirek

[sunny_pahuja2]

Hi,

Check this [link|http://help.sap.com/saphelp_nw70/helpdata/en/02/96274f538111d1891b0000e8322f96/content.htm]

Thanks

Sunny

[Former Member]

Where is the link, I can not see any link

[sunny_pahuja2]

Hi Atul,

click "link" above where i have written link it will open a page..

sometimes u have to use tricks

Thanks

Sunny

[Former Member]

Hello All,

Could some one expalin me what is the impact if I change this value.

Atul

[sunny_pahuja2]

I think it is explained well enough in link above.

Thanks

Sunny