Apache Spark历史记录服务器如何引用Amazon S3？

Question

[version]
Apache Spark 2.2.0
Hadoop 2.7

I want to set up Apache Spark histroy server.
Spark events log located in Amazon S3.
I can save log file in S3, but cannot read from history server.

Apache Spark installed at /usr/local/spark
so, $SPARK_HOME is /usr/local/spark

$ cd /usr/local/spark/sbin
$ sh start-history-server.sh

I got following error

Exception in thread "main" java.lang.ClassNotFoundException: org.apache.hadoop.fs.s3a.S3AFileSystem
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:335)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:348)
at org.apache.spark.util.Utils$.classForName(Utils.scala:230)
....

my spark-defaults.conf is below

spark.hadoop.fs.s3a.impl org.apache.hadoop.fs.s3a.S3AFileSystem
spark.history.provider org.apache.hadoop.fs.s3a.S3AFileSystem
spark.history.fs.logDirectory s3a://xxxxxxxxxxxxx
spark.eventLog.enabled true
spark.eventLog.dir s3a://xxxxxxxxxxxxxxx

I installed this 2 jar files in /usr/local/spark/jars/

aws-java-sdk-1.7.4.jar
hadoop-aws-2.7.3.jar

but error is same.

What is wrong?

Answer 1

Please add the following in spark-defaults.conf file and retry again.

spark.driver.extraClassPath :/usr/lib/hadoop/hadoop-aws.jar:/usr/share/aws/aws-java-sdk/* : spark.executor.extraClassPath :/usr/lib/hadoop/hadoop-aws.jar:/usr/share/aws/aws-java-sdk/*: