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Posted to issues@camel.apache.org by "Luca Burgazzoli (JIRA)" <ji...@apache.org> on 2017/09/27 14:21:00 UTC
[jira] [Resolved] (CAMEL-10320) Provide a LeaderPolicy to ease the
implementation of master/slave route/context
[ https://issues.apache.org/jira/browse/CAMEL-10320?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Luca Burgazzoli resolved CAMEL-10320.
-------------------------------------
Resolution: Fixed
> Provide a LeaderPolicy to ease the implementation of master/slave route/context
> -------------------------------------------------------------------------------
>
> Key: CAMEL-10320
> URL: https://issues.apache.org/jira/browse/CAMEL-10320
> Project: Camel
> Issue Type: New Feature
> Components: camel-core
> Reporter: Luca Burgazzoli
> Assignee: Dhiraj Bokde
> Labels: clustering
> Fix For: 2.20.0
>
>
> I've been working on some master/slave RoutePolicy and I'm wondering
> if we can have a proper LeaderPolicy with a standardized
> implementation in Camel 3.0 so one has only to notify when a
> leadership is taken
> In addition it may be nice to have:
> - a support for Leader election from the CmelContext so the routes are
> started when the context become leader.
> - an option to warm-up routes or to keep them stopped while not leader
> Then we can also make it exposed in JMX so tooling are able to detect
> which are current master and slaves, and whatnot.
> Some possible DSL/EIP extensions:
> {code:java}
> from("...")
> .routeId("myRoute")
> .master()
> .group("my-group")
> .consulConfiguration("http://consul-node:8500")
> .end()
> . to(...)
> {code}
> {code:java}
> camelContext.setDefaultClusteredRouteConfiguration(
> ClusteredRouteConfiguration.builder()
> .withAction(ClusteredRouteAction.SUSPEND)
> .withHealtCheck(...)
> .consulConfiguration("http://consul-node:8500")
> .build()
> );
>
> // lookup the cluster configuration from the registry
> from("clustered:file:/data")
> .routeId("data-files")
> .to(...)
> // lookup the cluster configuration from the registry
> from("master:file:/share")
> .routeId("shared-files")
> .master()
> .configuration("...")
> .end()
> .to(...)
> {code}
> {code:xml}
> <camelContext .../>
> <defaultMasterConfiguration/>
> <consulConfiguration url="" userName="" password=""/>
> <defaultMasterConfiguration/>
> <masterConfiguration id="master-1"/>
> <consulConfiguration url="" userName="" password=""/>
> <masterConfiguration/>
> <!--
> this route should pick up the default configuration
> -->
> <route id="data-files">
> <from uri="master:file:/data"/>
> <to uri="..."/>
> <route>
> <!--
> this route should pick up the configuration named
> master-1 and the master prefix should be optional.
> -->
> <route id="shared-files">
> <from uri="file:/shared"/>
> <master configurationRef="master-1"/>
> <to uri="..."/>
> <route>
> </camelContext>
> {code}
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