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Progress Sonic 8.5 Installation and Upgrade Guide - Product ...

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Chapter 8: Upgrading from 7.5 or 7.6 to <strong>8.5</strong><br />

◆ To upgrade a 7.5 or 7.6 cluster when its members are replicated brokers:<br />

1. In the <strong>Sonic</strong> Management Console, review the broker peers in the cluster to see they<br />

are performing as expected—both running, one in the ACTIVE role <strong>and</strong> the other in the<br />

STANDBY role.<br />

2. Confirm that the primary broker has the STANDBY role. If not, force failover by<br />

restarting the primary broker’s container.<br />

3. On that primary broker’s system, perform the broker upgrade tasks described in<br />

“Upgrading Replicated (Fault Tolerant) Broker Pairs” on page 208.<br />

4. While it is preferred that you complete the upgrade of the upgraded broker’s peer, if<br />

it is more convenient, you could upgrade other primary brokers on their respective<br />

systems as you progress through the all the participants in the cluster.<br />

Once you have upgraded all the replicated broker pairs in the cluster, review their states<br />

<strong>and</strong> their logs to be sure that all are upgraded <strong>and</strong> all are operative. The cluster of<br />

replicated brokers can perform Version 8 functions.<br />

210 <strong>Progress</strong> <strong>Sonic</strong> <strong>Installation</strong> <strong>and</strong> <strong>Upgrade</strong> <strong>Guide</strong> <strong>8.5</strong>

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