Spark submit指令碼說明

在spark開發中會遇到spark-submit指令碼的編寫，作為小白的我就在這裡對spark-submit進行簡單的說明。

vi wordcount.sh

/usr/local/spark/bin/spark-submit \

--class cn.spark.study.core.wordcountcluster \

--num-executors 3 \

--driver-memory 100m \

--executor-memory 100m \

--executor-cores 3 \

--master spark:

/usr/local/sparktest-0.0.1-snapshot-jar-with-dependencies.jar \

首先執行spark-submit，並傳入引數class，指定要執行的class檔案，num-executors是指明讓spark啟動幾個executor來執行，driver-memory指明driver的記憶體是多少，executor-memory指明每乙個executor的記憶體是多少，executor-cores指明executor-core是幾個,master用來指定standalone模式下spark的集群；/usr/local/sparktest-0.0.1-snapshot-jar-with-dependencies.jar指明jar包的位置。

預設wordcount.sh是不能執行的，改變許可權chmod 777 wordcount.sh 

執行./wordcount.sh

Spark submit指令碼說明

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