Internal kernel error - ZDATE_ILLEGAL_LOCTIME

[#1]

Hi Everyone,

I have SAP servers in Active directory. but recently, i am getting the following Runtime error in 2 servers.

Runtime error - Description of Exception

Category                       Internal Kernel Error

Runtime Error                ZDATE_ILLEGAL_LOCTIME

Application component  BC-ABA-LA

Short text

The local time of the application server is not correct.

The database and the application are installed in a same server.

Steps taken:

1. Trying to sync the time between active directory server and the application server.

2. Checked the time zone and all are OK.

3. Finally, I restarted the server and it is working now temporarily.

I got this error few times and only the last step has helped me. I think, this is not recommended.

Is anyone have idea about this issue and any other checklist to verify?

[Former Member]

Hi,

ZDATE_ILLEGAL_LOCTIME means TIME of your local application server (where SAP instance runs) was set BACKWARD by time service or users, which will always be considered as 'ILLEGAL' by SAP kernel.This is also a way of protecting your system from creating inconsistent data. If you open the dump ZDATE_ILLEGAL_LOCTIME in ST22, you will see the time-stamps captured by kernel. This is not an SAP error but occures when the time on the operating system gets reset to the past. 

As per my experience this is always caused by either a manual change of the system time on the OS or the use of a so-called time utility which adjusts the OS system time to keep it in sync with some external time reference. If your system uses such a utility you must ensure it conforms the restrictions outlined in note 447839. Making the parameter abap/time = strict will tell the system to trigger the short dump if the time inconsistencies are less that 2 seconds. This will make the short dump more likely.

You can also check SAP Note 989963

Regards,
Sachin