[KUDU-2796] Restore job mangles HDFS paths

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.9.0
• Fix Version/s: 1.10.0
• Labels: backup
• Target Version/s: 1.10.0
• Assignee: Grant Henke
• Reporter: Grant Henke
• Created: 23/Apr/19 18:43
• Updated: 24/Apr/19 13:54
• Resolved: 24/Apr/19 13:54

Description

It looks like there is an issue with certain HDFS deployments where converting to and from a Java and HDFS path can break the job.

Here is a sample stack trace:

19/04/23 10:43:24 ERROR yarn.ApplicationMaster: User class threw exception: org.apache.spark.sql.AnalysisException: Path does not exist: hdfs://ns1/ns1/kudu-backup-tests/default.loadgen_auto_0c24803e79b04c4eb010abaff6a290b9/1556039820974;
org.apache.spark.sql.AnalysisException: Path does not exist: hdfs://ns1/ns1/kudu-backup-tests/default.loadgen_auto_0c24803e79b04c4eb010abaff6a290b9/1556039820974;
at org.apache.spark.sql.execution.datasources.DataSource$$anonfun$org$apache$spark$sql$execution$datasources$DataSource$$checkAndGlobPathIfNecessary$1.apply(DataSource.scala:557)
at org.apache.spark.sql.execution.datasources.DataSource$$anonfun$org$apache$spark$sql$execution$datasources$DataSource$$checkAndGlobPathIfNecessary$1.apply(DataSource.scala:544)
at scala.collection.TraversableLike$$anonfun$flatMap$1.apply(TraversableLike.scala:241)
at scala.collection.TraversableLike$$anonfun$flatMap$1.apply(TraversableLike.scala:241)
at scala.collection.immutable.List.foreach(List.scala:392)
at scala.collection.TraversableLike$class.flatMap(TraversableLike.scala:241)
at scala.collection.immutable.List.flatMap(List.scala:355)
at org.apache.spark.sql.execution.datasources.DataSource.org$apache$spark$sql$execution$datasources$DataSource$$checkAndGlobPathIfNecessary(DataSource.scala:544)
at org.apache.spark.sql.execution.datasources.DataSource.resolveRelation(DataSource.scala:358)
at org.apache.spark.sql.DataFrameReader.loadV1Source(DataFrameReader.scala:223)
at org.apache.spark.sql.DataFrameReader.load(DataFrameReader.scala:211)
at org.apache.spark.sql.DataFrameReader.load(DataFrameReader.scala:178)
at org.apache.kudu.backup.KuduRestore$$anonfun$run$1$$anonfun$apply$1.apply(KuduRestore.scala:79)
at org.apache.kudu.backup.KuduRestore$$anonfun$run$1$$anonfun$apply$1.apply(KuduRestore.scala:58)
at scala.collection.immutable.List.foreach(List.scala:392)
at org.apache.kudu.backup.KuduRestore$$anonfun$run$1.apply(KuduRestore.scala:58)
at org.apache.kudu.backup.KuduRestore$$anonfun$run$1.apply(KuduRestore.scala:55)
at scala.collection.immutable.List.foreach(List.scala:392)
at org.apache.kudu.backup.KuduRestore$.run(KuduRestore.scala:55)
at org.apache.kudu.backup.KuduRestore$.main(KuduRestore.scala:166)
at org.apache.kudu.backup.KuduRestore.main(KuduRestore.scala)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.apache.spark.deploy.yarn.ApplicationMaster$$anon$2.run(ApplicationMaster.scala:673)