[
https://issues.apache.org/jira/browse/CRUNCH-320?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13864418#comment-13864418
]
Josh Wills commented on CRUNCH-320:
-----------------------------------
Is that not already the case? You can get a reference to the materialized
collection (Iterable<T>) or the PObject, but we don't actually create it until
you call iterator() on the Iterable<T> or getValue() on the PObject. You should
be able to line up a bunch of materialized collections/PObjects, call run(),
and then retrieve the materialized data immediately by calling
iterator()/getValue() as appropriate.
> Materialize several PObject & PCollection objects in parallel (deferred
> materialization)
> ----------------------------------------------------------------------------------------
>
> Key: CRUNCH-320
> URL: https://issues.apache.org/jira/browse/CRUNCH-320
> Project: Crunch
> Issue Type: Improvement
> Components: Core
> Reporter: Jason Gauci
> Assignee: Josh Wills
>
> Currently, Crunch blocks and materializes PCollections (through
> foo.materialize()) and PObjects (through foo.getValue()) on demand, but it
> would be a significant performance improvement if we could mark several of
> these objects as to be materialized, and then materialize all of them in
> parallel as part of a pipeline.run() call.
--
This message was sent by Atlassian JIRA
(v6.1.5#6160)
