Shutdown and shared memory files – Sybase DC35823-01-1500-04 User Manual

Page 43

Advertising
background image

CHAPTER 2 Starting and Stopping Servers

Configuration Guide

27

kill pid

where pid is the process identification of any

dataserver

or

backupserver

process, as determined by the

showserver

command. Killing one engine for a

particular Adaptive Server kills all engines for that server.

If more than one Adaptive Server is running on the same system, be careful that
the engine you kill is associated with the correct Adaptive Server. If your
Adaptive Server is configured to use multiple engines (CPUs), each engine has
an associated operating system process. The correct way to kill a multi-engine
server is to specify the process ID for engine 0.

This

showserver

output shows the processes for a four-engine server:

showserver

UID

PID

PPID

C

STIME

TTY

TIME

COMD

jorge 3320 1

80

10:31:40

pts/4

302:15

dataserver -dteamster

jorge 3321 3320

80

10:31:45

pts/4

324:47

dataserver -ONLINE:1

jorge 3322 3320

80

10:31:45

pts/4

326:02

dataserver -ONLINE:2

jorge 3323 3320

80

10:31:45

pts/4

328:56

dataserver -ONLINE:3

This example shows four running

dataserver

processes with operating system

process identifications (PID) 3320, 3321, 3322, and 3323 (

dataserver

is the

executable form of the Adaptive Server program.)

Child engine processes for the dataserver have the

-ONLINE:

argument.

Each child engine has a parent process identification (PPID) that is equal to the
process identification (PID) of the parent. In the example above, the PID of the
parent server is 3320. The other three engines spawned by the parent process
have the same PPID.

If the PPIDs appear to be unrelated, and there is more than one

dataserver

process, then more than one Adaptive Server is running on the system.

Shutdown and shared memory files

When Adaptive Server starts, it creates SERVER_NAME.krg file in
$SYBASE/$SYBASE_ASE directory to store information about shared memory
segments that it uses.

Advertising