Is there support for spark Spark 2.4.2

Nobody has claimed this yet.

I get the following error message when run against spark 2.4.2

11-18-2020 04:58:26 INFO [Thread-10] com.linkedin.drelephant.ElephantRunner : Job queue size is 0
11-18-2020 04:58:26 INFO [dr-el-executor-thread-2] com.linkedin.drelephant.ElephantRunner : Analyzing SPARK application_1605673758178_0001
11-18-2020 04:58:26 ERROR [dr-el-executor-thread-2] com.linkedin.drelephant.ElephantRunner : Failed to analyze SPARK application_1605673758178_0001
java.lang.IllegalArgumentException: java.net.UnknownHostException: null
at org.apache.hadoop.security.SecurityUtil.buildTokenService(SecurityUtil.java:418)
at org.apache.hadoop.security.SecurityUtil.buildTokenService(SecurityUtil.java:435)
at org.apache.hadoop.hdfs.web.WebHdfsFileSystem.initialize(WebHdfsFileSystem.java:239)
at org.apache.hadoop.fs.FileSystem.createFileSystem(FileSystem.java:2859)
at org.apache.hadoop.fs.FileSystem.access$200(FileSystem.java:99)
at org.apache.hadoop.fs.FileSystem$Cache.getInternal(FileSystem.java:2896)
at org.apache.hadoop.fs.FileSystem$Cache.get(FileSystem.java:2878)
at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:392)
at com.linkedin.drelephant.util.SparkUtils$class.fileSystemAndPathForEventLogDir(SparkUtils.scala:70)
at com.linkedin.drelephant.util.SparkUtils$.fileSystemAndPathForEventLogDir(SparkUtils.scala:312)
at org.apache.spark.deploy.history.SparkFSFetcher.doFetchData(SparkFSFetcher.scala:84)
at org.apache.spark.deploy.history.SparkFSFetcher$$anonfun$fetchData$1.apply(SparkFSFetcher.scala:74)
at org.apache.spark.deploy.history.SparkFSFetcher$$anonfun$fetchData$1.apply(SparkFSFetcher.scala:74)
at org.apache.spark.deploy.history.SparkFSFetcher$$anon$1.run(SparkFSFetcher.scala:78)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:360)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1824)
at com.linkedin.drelephant.security.HadoopSecurity.doAs(HadoopSecurity.java:109)
at org.apache.spark.deploy.history.SparkFSFetcher.doAsPrivilegedAction(SparkFSFetcher.scala:78)
at org.apache.spark.deploy.history.SparkFSFetcher.fetchData(SparkFSFetcher.scala:74)
at com.linkedin.drelephant.spark.fetchers.FSFetcher.fetchData(FSFetcher.scala:34)
at com.linkedin.drelephant.spark.fetchers.FSFetcher.fetchData(FSFetcher.scala:29)
at com.linkedin.drelephant.analysis.AnalyticJob.getAnalysis(AnalyticJob.java:308)
at com.linkedin.drelephant.ElephantRunner$ExecutorJob.run(ElephantRunner.java:390)
at com.linkedin.drelephant.priorityexecutor.RunnableWithPriority$1.run(RunnableWithPriority.java:36)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.net.UnknownHostException: null

Start with SparkUtils.scala:70 and the SparkFSFetcher/FSFetcher calls shown in the stack trace. Reproduce the failure with Spark 2.4.2 and inspect how the event-log filesystem path is resolved before the UnknownHostException. Done means Spark applications using that version can be analyzed successfully, with a regression test or documented reproduction if the repository supports one.

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