Oracle Audio Technologies B31679-01 Uživatelský manuál stáhnout pdf (Strana 117)

Data Store Upgrades 109

Follow the steps listed here in the order they are presented. The online

upgrade procedures are:

Step Upgrade System Active System

1. Use ttIsql to alter the replication

scheme

repscheme, setting static

replication port numbers so that the

data stores can talk across releases:

Command> call ttRepStop;

Command> ALTER REPLICATION

repscheme

ALTER STORE upgrade ON

upgradehost

SET PORT 40000

ALTER STORE active ON

activehost

SET PORT 40001;

Command> call ttRepStart;

Use ttIsql to alter the replication

scheme

repscheme, setting static

replication port numbers so that the

data stores can talk across releases:

Command> call ttRepStop;

Command> ALTER REPLICATION

repscheme

ALTER STORE upgrade ON

upgradehost

SET PORT 40000

ALTER STORE active ON

activehost

SET PORT 40001;

Command> call ttRepStart;

2. Disconnect all production

applications connected to the data

store. Any workload being run on the

upgrade system must start running on

the active system instead.

Use the ttRepAdmin utility to pause

replication from the data store

active

to the data store

upgrade:

ttRepAdmin -connStr DSN=active

-receiver -name upgrade

-state pause

This command temporarily stops the

replication of updates from the data

store

active to the data store

upgrade, but it retains any updates

made to

active in the data store log

files. The updates made to

active

during the upgrade procedure are

applied later, when

upgrade is

brought back up. For details on setting

the replication state, see "Setting the

replication state of subscribers" in

Chapter 4 of the TimesTen to TimesTen

Replication Guide.

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