Spark sql is working, but it seems that without any cluster manager, it is possible? -

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i have hadoop cluster 4 nodes(1master, 3slaves). , create hive tables files stored in hdfs. configure mysql hive metastore , copy hive-site.xml file inside conf folder of spark.

to install spark, download , extract spark in master node. , after copy hive-site.xml inside spark conf folder, start spark spark-shell command. needed install in slave nodes also?

im asking because, im executing success spark sql queries below, if try acess cluster manager default page in localhost:8080, shows "unable connect". seems spark sql working fine, without cluster manager working, possible??

var hivecontext = new org.apache.spark.sql.hive.hivecontext(sc) query = hivecontext.sql("select * customers"); query.show()

master:8080

enter image description here

first , have let spark knows hadoop configurations are, setting env variable hadoop_conf_dir in spark-env.sh file

then, when starting spark-shell have tell spark use yarn master: spark-shell --master yarn-client

for more information see spark yarn docs


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