8
Avere un cluster di accensione impostato su una macchina con due entrate, una pubblica un'altra privata. Il file/etc/hosts nel cluster ha l'ip interno di tutte le altre macchine nel cluster, in questo modo.Creazione di scintille utilizzare il file/etc/hosts per il binding in modalità cluster YARN
internal_ip FQDN
Tuttavia quando richiedo uno SparkContext tramite pyspark in modalità client FILATI (pyspark --master yarn --deploy-mode client), Akka si lega sul IP pubblico e quindi un time out si verifica.
15/11/07 23:29:23 INFO Remoting: Starting remoting
15/11/07 23:29:23 INFO Remoting: Remoting started; listening on addresses :[akka.tcp://[email protected]_ip:44015]
15/11/07 23:29:23 INFO util.Utils: Successfully started service 'sparkYarnAM' on port 44015.
15/11/07 23:29:23 INFO yarn.ApplicationMaster: Waiting for Spark driver to be reachable.
15/11/07 23:31:30 ERROR yarn.ApplicationMaster: Failed to connect to driver at yarn_driver_public_ip:48875, retrying ...
15/11/07 23:31:30 ERROR yarn.ApplicationMaster: Uncaught exception:
org.apache.spark.SparkException: Failed to connect to driver!
at org.apache.spark.deploy.yarn.ApplicationMaster.waitForSparkDriver(ApplicationMaster.scala:427)
at org.apache.spark.deploy.yarn.ApplicationMaster.runExecutorLauncher(ApplicationMaster.scala:293)
at org.apache.spark.deploy.yarn.ApplicationMaster.run(ApplicationMaster.scala:149)
at org.apache.spark.deploy.yarn.ApplicationMaster$$anonfun$main$1.apply$mcV$sp(ApplicationMaster.scala:574)
at org.apache.spark.deploy.SparkHadoopUtil$$anon$1.run(SparkHadoopUtil.scala:66)
at org.apache.spark.deploy.SparkHadoopUtil$$anon$1.run(SparkHadoopUtil.scala:65)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:422)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1657)
at org.apache.spark.deploy.SparkHadoopUtil.runAsSparkUser(SparkHadoopUtil.scala:65)
at org.apache.spark.deploy.yarn.ApplicationMaster$.main(ApplicationMaster.scala:572)
at org.apache.spark.deploy.yarn.ExecutorLauncher$.main(ApplicationMaster.scala:599)
at org.apache.spark.deploy.yarn.ExecutorLauncher.main(ApplicationMaster.scala)
15/11/07 23:31:30 INFO yarn.ApplicationMaster: Final app status: FAILED, exitCode: 10, (reason: Uncaught exception: org.apache.spark.SparkException: Failed to connect to driver!)
15/11/07 23:31:30 INFO yarn.ApplicationMaster: Unregistering ApplicationMaster with FAILED (diag message: Uncaught exception: org.apache.spark.SparkException: Failed to connect to driver!)
15/11/07 23:31:30 INFO yarn.ApplicationMaster: Deleting staging directory .sparkStaging/application_1446960366742_0002
Come si vede dal log, IP privato è completamente ignorato, come posso fare filati e scintilla utilizzano l'indirizzo IP privato, come specificato nel file hosts?
Cluster è stata provisioning utilizzando Ambari (HDP 2,4)