我正在尝试使用typesafeconfig支持我的Spark应用程序的一些外部配置文件。
我正在像这样在我的应用程序代码(driver)中加载application.conf文件:
val config = ConfigFactory.load()
val myProp = config.getString("app.property")
val df = spark.read.avro(myProp)
application.conf的格式如下:
app.propety="some value"
spark-submit的执行方式如下:
spark-submit
--class com.myapp.Main \
--conf spark.shuffle.service.enabled=true \
--conf spark.dynamicAllocation.enabled=true \
--conf spark.dynamicAllocation.minExecutors=56 \
--conf spark.dynamicAllocation.maxExecutors=1000 \
--driver-class-path $HOME/conf/*.conf \
--files $HOME/conf/application.conf \
my-app-0.0.1-SNAPSHOT.jar
看起来它不起作用,我得到了以下结果:
Exception in thread "main" com.typesafe.config.ConfigException$Missing: No configuration setting found for key 'app'
at com.typesafe.config.impl.SimpleConfig.findKey(SimpleConfig.java:124)
at com.typesafe.config.impl.SimpleConfig.find(SimpleConfig.java:147)
at com.typesafe.config.impl.SimpleConfig.find(SimpleConfig.java:159)
at com.typesafe.config.impl.SimpleConfig.find(SimpleConfig.java:164)
at com.typesafe.config.impl.SimpleConfig.getString(SimpleConfig.java:206)
at com.paypal.cfs.fpti.Main$.main(Main.scala:42)
at com.paypal.cfs.fpti.Main.main(Main.scala)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.apache.spark.deploy.SparkSubmit$.org$apache$spark$deploy$SparkSubmit$$runMain(SparkSubmit.scala:750)
at org.apache.spark.deploy.SparkSubmit$.doRunMain$1(SparkSubmit.scala:187)
at org.apache.spark.deploy.SparkSubmit$.submit(SparkSubmit.scala:212)
at org.apache.spark.deploy.SparkSubmit$.main(SparkSubmit.scala:126)
at org.apache.spark.deploy.SparkSubmit.main(SparkSubmit.scala)
查看日志,我发现"--files"有效,似乎是类路径问题...
18/03/13 01:08:30 INFO SparkContext: Added file file:/home/user/conf/application.conf at file:/home/user/conf/application.conf with timestamp 1520928510820
18/03/13 01:08:30 INFO Utils: Copying /home/user/conf/application.conf to /tmp/spark-2938fde1-fa4a-47af-8dc6-1c54b5e89d48/userFiles-c2cec57f-18c8-491d-8679-df7e7da45e05/application.conf