SYSTEM_NO_SHM_MEMORY

[Former Member]

Hi,

I am getting contiunous dump of SYSTEM_NO_SHM_MEMORY from WF_BATCH user.

I checked the following parameters in our system.

ztta/roll_area 6500352

ztta/roll_extension 2000683008

abap/heap_area_total 8000000000

abap/heap_area_dia 4000000000

abap/heap_area_nondia 4000000000

em/initial_size_MB 4361

abap/shared_objects_size_MB 150

Please suggest on this..

Thanks in advance.

Regards,

Manish Salvi

[Former Member · Accepted solution]

hi,

check the following parameter should be 1

ztta/roll_first = 1

Regards

Ben

[Former Member · Accepted solution]

Hi Ben,

Thanks for your reply.

I checked this parameter and this is set to 1024.

Regards,

Manish

[Former Member · Accepted solution]

Manish,

SYSTEM_NO_SHM_MEMORY error means that the current application server no longer has sufficient shared objects memory available to store the data in a shared objects area. If there is insufficient shared objects memory available to execute the application, you can use the "abap/shared_objects_size_MB" profile parameter to set it to a higher values. Looks like your value is too small.

Thanks

Prince

[Former Member · Accepted solution]

Thanks Prince.

I will increase this parameter from 150 to 200 or I can increase to still more some where around 300

Is it sufficient as I checked in note 972757 and they have suggested to increase to this value.

Thanks & Regards,

Manish

[Former Member · Accepted solution]

You can try 300 ..

Thanks

Prince

[Former Member · Accepted solution]

Hi Manish,

Could you please let me know the OS and 32 or 64 bit...

For 64 bit ... you have to chnge

Please change ztta/rool_first to 1 ..

Regards,

Manish

[Former Member · Accepted solution]

Hi,

OS is 64 bit AIX 5.3

Regards,

Manish

[Former Member · Accepted solution]

Hi,

You have to change following parameter

ztta/rool_first = 1 ..

Regards

Ben

[Former Member · Accepted solution]

Thanks Ben,

I appreciate ur input ...

I did the changes suggested and I am not getting this dump...

I still have to monitor for 1 week for the same.

regards,

Manish

[Former Member · Accepted solution]

Manish,

we are also now getting the same Short Dump.

abap/shared_objects_size_MB parameter is set to 50MB only

please let me know whether I need to increase this upto 150-200 or

do I need to check only ztta/roll_first = 1 this parameter

[Former Member]

Hi Ben,

Im my system, the value for the parameter ztta/roll_first: 1 (set to 1), but still we are getting the dumps of SYSTEM_NO_SHM_MEMORY. Please suggest on this.

Thank You,

Ramesh. K