2015-08-21 03:36:55 -04:00
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[[discovery-multicast]]
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2015-08-20 03:38:42 -04:00
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=== Multicast Discovery Plugin
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The Multicast Discovery plugin provides the ability to form a cluster using
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TCP/IP multicast messages.
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[[discovery-multicast-install]]
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[float]
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==== Installation
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This plugin can be installed using the plugin manager:
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[source,sh]
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----------------------------------------------------------------
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sudo bin/plugin install discovery-multicast
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----------------------------------------------------------------
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The plugin must be installed on every node in the cluster, and each node must
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be restarted after installation.
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[[discovery-multicast-remove]]
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[float]
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==== Removal
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The plugin can be removed with the following command:
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[source,sh]
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----------------------------------------------------------------
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sudo bin/plugin remove discovery-multicast
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----------------------------------------------------------------
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The node must be stopped before removing the plugin.
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[[discovery-multicast-usage]]
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==== Configuring multicast discovery
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Multicast ping discovery of other nodes is done by sending one or more
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multicast requests which existing nodes will receive and
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respond to. It provides the following settings with the
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`discovery.zen.ping.multicast` prefix:
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[cols="<,<",options="header",]
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|=======================================================================
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|Setting |Description
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|`group` |The group address to use. Defaults to `224.2.2.4`.
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|`port` |The port to use. Defaults to `54328`.
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|`ttl` |The ttl of the multicast message. Defaults to `3`.
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|`address` |The address to bind to, defaults to `null` which means it
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will bind `network.bind_host`
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|`enabled` |Whether multicast ping discovery is enabled. Defaults to `false`.
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|=======================================================================
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