No, I believe unpersist acts immediately. On Mon, Oct 20, 2014 at 10:13 AM, marylucy <[email protected]> wrote:
> thank you for your reply! > is unpersist operation lazy?if yes,how to decrease memory size as quickly > as possible > > 在 Oct 20, 2014，21:26，"Nicholas Chammas" <[email protected]> 写道： > > I believe it won't show up there until you trigger an action that causes > the RDD to actually be cached. Remember that certain operations in Spark > are *lazy*, and caching is one of them. > > Nick > > On Mon, Oct 20, 2014 at 9:19 AM, marylucy <[email protected]> > wrote: > >> in spark-shell,I do in follows >> val input = sc.textfile("hdfs://192.168.1.10/people/testinput/") >> input.cache() >> >> In webui,I cannot see any rdd in storage tab.can anyone tell me how to >> show rdd size?thank you >> --------------------------------------------------------------------- >> To unsubscribe, e-mail: [email protected] >> For additional commands, e-mail: [email protected] >> >> >
