I am not sure if I understand you. I assume your primary data access point will be Ignite cache backed by Cassandra as persistent store. Is this the point?
Or you want to run map-reduce jobs with Ignite using data currently stored in Cassandra and properly route that jobs to the hosts holding the data? -- Yakov Zhdanov, Director R&D *GridGain Systems* www.gridgain.com 2015-05-18 14:49 GMT+03:00 tcostasouza <[email protected]>: > Hello! > > But isn't this tied to Ignite's cache? Wouldn't I need to cache the > external data first for this to work? > > Thanks > > On Mon, May 18, 2015 at 5:56 AM dsetrakyan [via Apache Ignite Users] <[hidden > email] <http:///user/SendEmail.jtp?type=node&node=315&i=0>> wrote: > >> tcostasouza wrote >> Does it supports data collocated processing by overlaying ignite cluster >> with another storage cluster (i.e. Cassandra)? >> >> Yes, Ignite supports pluggable AffinityFunction >> <https://ignite.incubator.apache.org/releases/1.0.0/javadoc/org/apache/ignite/cache/affinity/AffinityFunction.html> >> API >> which can be configured through CacheConfiguration. >> >> You should be able to create an implementation which will simply delegate >> to one of the Cassandra Partitioner implementations. >> >> Is this what you were looking for? >> >> >> ------------------------------ >> If you reply to this email, your message will be added to the >> discussion below: >> >> http://apache-ignite-users.70518.x6.nabble.com/MapReduce-with-external-databases-tp311p312.html >> To unsubscribe from MapReduce with external databases, click here. >> NAML >> <http://apache-ignite-users.70518.x6.nabble.com/template/NamlServlet.jtp?macro=macro_viewer&id=instant_html%21nabble%3Aemail.naml&base=nabble.naml.namespaces.BasicNamespace-nabble.view.web.template.NabbleNamespace-nabble.view.web.template.NodeNamespace&breadcrumbs=notify_subscribers%21nabble%3Aemail.naml-instant_emails%21nabble%3Aemail.naml-send_instant_email%21nabble%3Aemail.naml> >> > > ------------------------------ > View this message in context: Re: MapReduce with external databases > <http://apache-ignite-users.70518.x6.nabble.com/MapReduce-with-external-databases-tp311p315.html> > > Sent from the Apache Ignite Users mailing list archive > <http://apache-ignite-users.70518.x6.nabble.com/> at Nabble.com. >
