Airflow和Spark / Hadoop-唯一集群或一个用于Airflow，另一个集群用于Spark / Hadoop [英] Airflow and Spark/Hadoop - Unique cluster or one for Airflow and other for Spark/Hadoop

问题描述

我正在尝试找出哪种方法可以与Airflow和Spark / Hadoop一起使用。
我已经有一个Spark / Hadoop集群，正在考虑为Airflow创建另一个集群，该集群将作业远程提交给Spark / Hadoop集群。

I'm trying to figure out which is the best way to work with Airflow and Spark/Hadoop. I already have a Spark/Hadoop cluster and I'm thinking about creating another cluster for Airflow that will submit jobs remotely to Spark/Hadoop cluster.

任何关于它的建议？从另一个集群远程部署spark看起来有点复杂，并且会创建一些文件配置重复。

Any advice about it? Looks like it's a little complicated to deploy spark remotely from another cluster and that will create some file configuration duplication.

推荐答案

我相信，需要配置 yarn-site.xml 文件，以便为 spark-submit --master yarn --deploy-mode client 开始工作。 （您可以尝试集群部署模式，但是我认为由Airflow管理驱动程序不是一个坏主意）

You really only need to configure a yarn-site.xml file, I believe, in order for spark-submit --master yarn --deploy-mode client to work. (You could try cluster deploy mode, but I think having the driver being managed by Airflow isn't a bad idea)

一旦在YARN中部署了Application Master，则Spark在Hadoop集群本地运行。

Once an Application Master is deployed within YARN, then Spark is running locally to the Hadoop cluster.

如果确实需要，可以添加 hdfs-site.xml 和 hive -site.xml 也要从Airflow提交（如果可能的话），否则至少应从YARN容器类路径中拾取hdfs-site.xml文件（并非所有NodeManager都可以具有在其上安装的Hive客户端）

If you really want, you could add a hdfs-site.xml and hive-site.xml to be submitted as well from Airflow (if that's possible), but otherwise at least hdfs-site.xml files should be picked up from the YARN container classpath (not all NodeManagers could have a Hive client installed on them)

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