Hello, The second one, I would like to run map-reduce jobs with Ignite using data currently stored in Cassandra and properly route that jobs to the hosts holding the data?
Cheers! On Mon, May 18, 2015 at 9:04 AM Yakov Zhdanov [via Apache Ignite Users] < [email protected]> wrote: > 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 <[hidden email] > <http:///user/SendEmail.jtp?type=node&node=316&i=0>>: > >> 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. >> > > > > ------------------------------ > 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-tp311p316.html > To unsubscribe from MapReduce with external databases, click here > <http://apache-ignite-users.70518.x6.nabble.com/template/NamlServlet.jtp?macro=unsubscribe_by_code&node=311&code=dGNvc3Rhc291emFAZ21haWwuY29tfDMxMXwtMTI3MjQ2NDcyNQ==> > . > 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: http://apache-ignite-users.70518.x6.nabble.com/MapReduce-with-external-databases-tp311p317.html Sent from the Apache Ignite Users mailing list archive at Nabble.com.
