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Connecting to distributed broker [message #1740637]

Tue, 16 August 2016 14:26

vicky vicky

Messages: 1
Registered: August 2016

Junior Member

I am using Apache Artemis as my mqtt broker. I have an Artemis cluster which is configured in Master-Slave fashion. When the Master server fails, the backup server takes over and the client has to connect to the slave server. Master and slave are having different IP.

Is there an option to specify multiple connect url (address of master and slave) while creating a MqttClient object in eclipse paho?

Something like
MqttClient cl = new MqttClient("LIST OF IPs", "Publisher", new MemoryPersistence());

instead of just
MqttClient cl = new MqttClient("tcp://localhost:1883", "Publisher", new MemoryPersistence());

such that when the connection to first address fails, a connection to the next address is tried.

Could someone please guide in this? Much appreciated.

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Re: Connecting to distributed broker [message #1744281 is a reply to message #1740637]

Fri, 23 September 2016 20:52

Ian Craggs

Messages: 83
Registered: March 2013

Member

Yes there is, at least in some of the clients - those which tick "high availability" in the matrix on this page: https://www.eclipse.org/paho/downloads.php

In the C and Java clients, this option is called "serverURIs" on the connect options. This list overrides the usual server URI.

I hope that helps.

Ian Craggs
Eclipse Paho Project Lead

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