What is the use of Sapstartsrv in Hana?
What is the use of Sapstartsrv in Hana?
Process sapstartsrv has parent process id (1) or init, the initialisation process. The same is true for the sapstart process. SAPStart, in turn, starts the SAP HANA watchdog process, HDB daemon, which then starts the other HDB processes. We also see the different Java runtime processes hosting different Java and Node.
What is Cleanipc SAP?
The cleanipc command is used to clear the shared memeory occupied by the SAP system. Mostly, this command is used (by adm user) while restarting an SAP system. So, you stop the system using stopsap, run the cleanipc command to clear the memory and then start the system using startsap.
What is XS engine in SAP HANA?
XS Engine allows for the creation of applications on HANA using only HANA and a front-end application library like SAPUI5. No separate application server is necessary. More specifically, XS Engine is a JavaScript application server based on the Mozilla SpiderMonkey engine.
What is daemon in SAP HANA?
When starting SAP HANA, as a very first step, the daemon service is started. The daemon is a lightweight service that sets the environment variables required by the remaining services (nameserver, indexserver, scriptserver, xsengine, …) and then starts them in the correct order.
What is semaphore file in SAP?
In computer science, particularly in operating systems, a semaphore is a variable or abstract data type that is used for controlling access, by multiple processes, to a common resource in a parallel programming or a multi user environment.
How do I use Cleanipc on Windows?
On Unix systems:
- You can use ‘cleanipc 99 remove’ on O/S level (this will remove all the ipc objects for the system number 99, also for the SAPCCMSR agent).
- You could alternatively use ‘ipcrm -M 0x00004dbe’, which will delete saposcol’s SHM, but not anything related to host agent.
How does SAP message server work?
The SAP Message Server is responsible for communication between the application servers. The SAP Message Server passes requests from one application server to another within the system. The SAP Message Server also contains information about application server groups and the current load balancing within them.