Repository: spark Updated Branches: refs/heads/branch-1.4 c7c99857d -> 43f02e41e
[STREAMING][DOC][MINOR] Update the description of direct Kafka stream doc With the merge of [SPARK-8337](https://issues.apache.org/jira/browse/SPARK-8337), now the Python API has the same functionalities compared to Scala/Java, so here changing the description to make it more precise. zsxwing tdas , please review, thanks a lot. Author: jerryshao <ss...@hortonworks.com> Closes #10246 from jerryshao/direct-kafka-doc-update. (cherry picked from commit 24d3357d66e14388faf8709b368edca70ea96432) Signed-off-by: Shixiong Zhu <shixi...@databricks.com> Project: http://git-wip-us.apache.org/repos/asf/spark/repo Commit: http://git-wip-us.apache.org/repos/asf/spark/commit/43f02e41 Tree: http://git-wip-us.apache.org/repos/asf/spark/tree/43f02e41 Diff: http://git-wip-us.apache.org/repos/asf/spark/diff/43f02e41 Branch: refs/heads/branch-1.4 Commit: 43f02e41e36256c2b90ee06d8b380ff2dfc7cabf Parents: c7c9985 Author: jerryshao <ss...@hortonworks.com> Authored: Thu Dec 10 15:31:46 2015 -0800 Committer: Shixiong Zhu <shixi...@databricks.com> Committed: Thu Dec 10 15:32:16 2015 -0800 ---------------------------------------------------------------------- docs/streaming-kafka-integration.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) ---------------------------------------------------------------------- http://git-wip-us.apache.org/repos/asf/spark/blob/43f02e41/docs/streaming-kafka-integration.md ---------------------------------------------------------------------- diff --git a/docs/streaming-kafka-integration.md b/docs/streaming-kafka-integration.md index 79b811c..100f637 100644 --- a/docs/streaming-kafka-integration.md +++ b/docs/streaming-kafka-integration.md @@ -74,7 +74,7 @@ Next, we discuss how to use this approach in your streaming application. [Maven repository](http://search.maven.org/#search|ga|1|a%3A%22spark-streaming-kafka-assembly_2.10%22%20AND%20v%3A%22{{site.SPARK_VERSION_SHORT}}%22) and add it to `spark-submit` with `--jars`. ## Approach 2: Direct Approach (No Receivers) -This new receiver-less "direct" approach has been introduced in Spark 1.3 to ensure stronger end-to-end guarantees. Instead of using receivers to receive data, this approach periodically queries Kafka for the latest offsets in each topic+partition, and accordingly defines the offset ranges to process in each batch. When the jobs to process the data are launched, Kafka's simple consumer API is used to read the defined ranges of offsets from Kafka (similar to read files from a file system). Note that this is an experimental feature introduced in Spark 1.3 for the Scala and Java API. Spark 1.4 added a Python API, but it is not yet at full feature parity. +This new receiver-less "direct" approach has been introduced in Spark 1.3 to ensure stronger end-to-end guarantees. Instead of using receivers to receive data, this approach periodically queries Kafka for the latest offsets in each topic+partition, and accordingly defines the offset ranges to process in each batch. When the jobs to process the data are launched, Kafka's simple consumer API is used to read the defined ranges of offsets from Kafka (similar to read files from a file system). Note that this is an experimental feature introduced in Spark 1.3 for the Scala and Java API, in Spark 1.4 for the Python API. This approach has the following advantages over the receiver-based approach (i.e. Approach 1). --------------------------------------------------------------------- To unsubscribe, e-mail: commits-unsubscr...@spark.apache.org For additional commands, e-mail: commits-h...@spark.apache.org
