You are viewing a plain text version of this content. The canonical link for it is here.
Posted to commits@beam.apache.org by me...@apache.org on 2018/01/22 18:18:19 UTC
[beam-site] branch asf-site updated (3d489a6 -> e6f055e)
This is an automated email from the ASF dual-hosted git repository.
mergebot-role pushed a change to branch asf-site
in repository https://gitbox.apache.org/repos/asf/beam-site.git.
from 3d489a6 This closes #374
add 0331c1c [BEAM-3117] Fix reference to bundles and windows
add 9eac3bb This closes #378
new e6f055e Prepare repository for deployment.
The 1 revisions listed above as "new" are entirely new to this
repository and will be described in separate emails. The revisions
listed as "add" were already present in the repository and have only
been added to this reference.
Summary of changes:
content/documentation/programming-guide/index.html | 12 ++++++------
src/documentation/programming-guide.md | 13 +++++++------
2 files changed, 13 insertions(+), 12 deletions(-)
--
To stop receiving notification emails like this one, please contact
mergebot-role@apache.org.
[beam-site] 01/01: Prepare repository for deployment.
Posted by me...@apache.org.
This is an automated email from the ASF dual-hosted git repository.
mergebot-role pushed a commit to branch asf-site
in repository https://gitbox.apache.org/repos/asf/beam-site.git
commit e6f055ed689b8ece30276be856ab91e42bdc2e03
Author: Mergebot <me...@apache.org>
AuthorDate: Mon Jan 22 10:18:17 2018 -0800
Prepare repository for deployment.
---
content/documentation/programming-guide/index.html | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/content/documentation/programming-guide/index.html b/content/documentation/programming-guide/index.html
index 4af91c1..1794b85 100644
--- a/content/documentation/programming-guide/index.html
+++ b/content/documentation/programming-guide/index.html
@@ -805,12 +805,12 @@ finite length. An unbounded <code class="highlighter-rouge">PCollection</code> m
job that runs continuously, as the entire collection can never be available for
processing at any one time.</p>
-<p>When performing an operation that groups elements in an unbounded <code class="highlighter-rouge">PCollection</code>,
-Beam requires a concept called <strong>windowing</strong> to divide a continuously updating
-data set into logical windows of finite size. Beam processes each window as a
-bundle, and processing continues as the data set is generated. These logical
-windows are determined by some characteristic associated with a data element,
-such as a <strong>timestamp</strong>.</p>
+<p>Beam uses <a href="#windowing">windowing</a> to divide a continuously updating unbounded
+<code class="highlighter-rouge">PCollection</code> into logical windows of finite size. These logical windows are
+determined by some characteristic associated with a data element, such as a
+<strong>timestamp</strong>. Aggregation transforms (such as <code class="highlighter-rouge">GroupByKey</code> and <code class="highlighter-rouge">Combine</code>) work
+on a per-window basis — as the data set is generated, they process each
+<code class="highlighter-rouge">PCollection</code> as a succession of these finite windows.</p>
<h4 id="element-timestamps">3.2.5. Element timestamps</h4>
--
To stop receiving notification emails like this one, please contact
mergebot-role@apache.org.