Hi, Yes, Spark automatically removes old RDDs from the cache when you make new ones. Unpersist forces it to remove them right away.
On Thu, Apr 23, 2015 at 9:28 AM, Jeffery [via Apache Spark User List] < ml-node+s1001560n22618...@n3.nabble.com> wrote: > Hi, Dear Spark Users/Devs: > > In a method, I create a new RDD, and cache it, whether Spark will unpersit > the RDD automatically after the rdd is out of scope? > > I am thinking so, but want to make sure with you, the experts :) > > Thanks, > Jeffery Yuan > > ------------------------------ > If you reply to this email, your message will be added to the discussion > below: > > http://apache-spark-user-list.1001560.n3.nabble.com/Spark-RDD-Lifecycle-whether-RDD-will-be-reclaimed-out-of-scope-tp22618.html > To start a new topic under Apache Spark User List, email > ml-node+s1001560n1...@n3.nabble.com > To unsubscribe from Apache Spark User List, click here > <http://apache-spark-user-list.1001560.n3.nabble.com/template/NamlServlet.jtp?macro=unsubscribe_by_code&node=1&code=cHJhbm5veUBzaWdtb2lkYW5hbHl0aWNzLmNvbXwxfC0xNTI2NTg4NjQ2> > . > NAML > <http://apache-spark-user-list.1001560.n3.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-spark-user-list.1001560.n3.nabble.com/Spark-RDD-Lifecycle-whether-RDD-will-be-reclaimed-out-of-scope-tp22618p22625.html Sent from the Apache Spark User List mailing list archive at Nabble.com.