Srinivas, Thanks for the insight. I had not considered a dependency issue as the metrics jar works well applied on the driver. Perhaps my main jar includes the Hadoop dependencies but the metrics jar does not?
I am confused as the only Hadoop dependency also exists for the built in metrics providers which appear to work. Regards, Bryan Get Outlook for Android<https://aka.ms/ghei36> ________________________________ From: Srinivas V <srini....@gmail.com> Sent: Friday, June 26, 2020 9:47:52 PM To: Bryan Jeffrey <bryan.jeff...@gmail.com> Cc: user <user@spark.apache.org> Subject: Re: Metrics Problem It should work when you are giving hdfs path as long as your jar exists in the path. Your error is more security issue (Kerberos) or Hadoop dependencies missing I think, your error says : org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation On Fri, Jun 26, 2020 at 8:44 PM Bryan Jeffrey <bryan.jeff...@gmail.com<mailto:bryan.jeff...@gmail.com>> wrote: It may be helpful to note that I'm running in Yarn cluster mode. My goal is to avoid having to manually distribute the JAR to all of the various nodes as this makes versioning deployments difficult. On Thu, Jun 25, 2020 at 5:32 PM Bryan Jeffrey <bryan.jeff...@gmail.com<mailto:bryan.jeff...@gmail.com>> wrote: Hello. I am running Spark 2.4.4. I have implemented a custom metrics producer. It works well when I run locally, or specify the metrics producer only for the driver. When I ask for executor metrics I run into ClassNotFoundExceptions Is it possible to pass a metrics JAR via --jars? If so what am I missing? Deploy driver stats via: --jars hdfs:///custommetricsprovider.jar --conf spark.metrics.conf.driver.sink.metrics.class=org.apache.spark.mycustommetricssink However, when I pass the JAR with the metrics provider to executors via: --jars hdfs:///custommetricsprovider.jar --conf spark.metrics.conf.executor.sink.metrics.class=org.apache.spark.mycustommetricssink I get ClassNotFoundException: 20/06/25 21:19:35 ERROR MetricsSystem: Sink class org.apache.spark.custommetricssink cannot be instantiated Exception in thread "main" java.lang.reflect.UndeclaredThrowableException at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1748) at org.apache.spark.deploy.SparkHadoopUtil.runAsSparkUser(SparkHadoopUtil.scala:64) at org.apache.spark.executor.CoarseGrainedExecutorBackend$.run(CoarseGrainedExecutorBackend.scala:188) at org.apache.spark.executor.CoarseGrainedExecutorBackend$.main(CoarseGrainedExecutorBackend.scala:281) at org.apache.spark.executor.CoarseGrainedExecutorBackend.main(CoarseGrainedExecutorBackend.scala) Caused by: java.lang.ClassNotFoundException: org.apache.spark.custommetricssink at java.net.URLClassLoader.findClass(URLClassLoader.java:382) at java.lang.ClassLoader.loadClass(ClassLoader.java:418) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:352) at java.lang.ClassLoader.loadClass(ClassLoader.java:351) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:348) at org.apache.spark.util.Utils$.classForName(Utils.scala:238) at org.apache.spark.metrics.MetricsSystem$$anonfun$registerSinks$1.apply(MetricsSystem.scala:198) at org.apache.spark.metrics.MetricsSystem$$anonfun$registerSinks$1.apply(MetricsSystem.scala:194) at scala.collection.mutable.HashMap$$anonfun$foreach$1.apply(HashMap.scala:130) at scala.collection.mutable.HashMap$$anonfun$foreach$1.apply(HashMap.scala:130) at scala.collection.mutable.HashTable$class.foreachEntry(HashTable.scala:236) at scala.collection.mutable.HashMap.foreachEntry(HashMap.scala:40) at scala.collection.mutable.HashMap.foreach(HashMap.scala:130) at org.apache.spark.metrics.MetricsSystem.registerSinks(MetricsSystem.scala:194) at org.apache.spark.metrics.MetricsSystem.start(MetricsSystem.scala:102) at org.apache.spark.SparkEnv$.create(SparkEnv.scala:365) at org.apache.spark.SparkEnv$.createExecutorEnv(SparkEnv.scala:201) at org.apache.spark.executor.CoarseGrainedExecutorBackend$$anonfun$run$1.apply$mcV$sp(CoarseGrainedExecutorBackend.scala:221) at org.apache.spark.deploy.SparkHadoopUtil$$anon$2.run(SparkHadoopUtil.scala:65) at org.apache.spark.deploy.SparkHadoopUtil$$anon$2.run(SparkHadoopUtil.scala:64) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:422) at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1730) ... 4 more Is it possible to pass a metrics JAR via --jars? If so what am I missing? Thank you, Bryan
