Linux-UNIX: What to restart or reboot on the database server after installing or updating S-TAP

This topic details what needs to be rebooted or restarted after you install or upgrade your UNIX or Linux S-TAP®. Restart and reboot requirements are the same for GIM and non-GIM implementations.

Installing S-TAP when using EXIT

Db2 and Teradata: No restart needed.

Informix: No restart needed. If ifxserver is running, then restart it. If ifxserver is not running, then you do not need to restart anything.

Installing S-TAP when using A-TAP

The database must be restarted when using A-TAP.

Deactivate and de-instrument the A-TAP before any database software updates.

Installing S-TAP when using K-TAPwith TCP/IPC or shared memory connections (SHM)

OS/Database	Oracle		Db2		Sybase		Mysql		Informix
	TPC/IPC	SHM	TPC/IPC	SHM	TPC/IPC	SHM	TPC/IPC	SHM	TPC/IPC	SHM
Linux	NR	NR	NR	REQ	NR	NR	NR	NA	NR	REQ
AIX *	REQ	NR	REQ	NR	REQ	NR	REQ	NA	REQ	NR
Solaris	NR	NR	NR	NR	NR	NR	NR	NA	NR	NR
HP-UX	NR	NR	NR	NR	NR	NR	NR	NA	NR	NR

Where:

• NR = No restart/reboot required (based on utilizing live update mechanism and referencing live update link if you have one)
• REQ = Restart required
• NA = Not applicable

* On AIX, a database restart is always required after you install S-TAP in order to capture TCP traffic. When you install an S-TAP on AIX, AIX updates the system calls. When you restart the database server, K-TAP intercepts and updates the system call to ensure the server can access the most current system call.

What to restart after a live upgrade of UNIX/Linux S-TAP

No restarts are necessary at all for live upgrades that do not include A-TAP or exit libraries.

Deactivate and de-instrument the A-TAP prior to any S-TAP upgrades.

When using Exit libraries:

• If you upgrade from v10.6.0.0 and higher, you do not need to restart the database. You can upgrade the S-TAP while the database is running; the next time the database is restarted, the updated exit library is used.
• If you upgrade from any release before 10.6.0.0: Restart any databases that use an exit library.

Reboot guidelines

Rebooting the database server is only required when uninstalling K-TAP (whether or not K-TAP is in use).