MATLAB DISTRIBUTED COMPUTING SERVER 4 - SYSTEM ADMINISTRATORS GUIDE Manuel d'utilisateur télécharger pdf (Page 36)

2 Netw ork Administration

Locate Checkpoi

nt Folders

Checkpoint fold

ers contain information related to persistence data, which

the server servi

ces use to create continuity from one instance of a session to

another. For ex

ample, if you stop and restart a job manager, the new session

continues the o

ld session, using all the same data.

A primary feat

ure offered by the checkpoint folders is in crash recovery. This

allows server

services to automatically resume their se ssions after a system

goes down and

comes back up, minimizing the loss of data. However, if a

MATLAB worke

r goe s down during the evaluation of a task, that task is

neither reev

aluated nor reassigned to another worker. In this case, a finished

job may not h

ave a complete set of output data, because data from any

unfin ished

tasks might be missing.

Note If a jo

b manager crashes and restarts, its workers can take up to 2

minutes to

reregister with it.

Platform File Location

Windows

The default location of the checkpoint folders is

<TEMP>\MDCE\Checkpoint,where<TEMP> is the

value of the system

TEMP variable. For example,

TEMP is set to C:\TEMP, the checkpoint folders

are placed in

C:\TEMP\MDCE\Checkpoint.

You can set alternative locations for

the checkpoint folders by modifying the

CHECKPOINTBASE setting in the mdce_def.b at

file before starting the mdce service.

UNIX and M acintosh

The checkpoint folders are placed by default in

/var/lib/mdce/.

You can set alternative locations for

the checkpo int folder by modifying the

CHECKPOINTBASE setting in the mdce_def .sh

file before starting the mdce service.

2-18

1 2 ... 31 32 33 34 35 36 37 38 39 40 41 ... 147 148

Commentaires sur ces manuels

Pas de commentaire

MATLAB DISTRIBUTED COMPUTING SERVER 4 - SYSTEM ADMINISTRATORS GUIDE Manuel d'utilisateur Page 36

Commentaires sur ces manuels