hudi-bot opened a new issue, #15847:
URL: https://github.com/apache/hudi/issues/15847
Hadoop3's FileStatus is serializable and won't have this issue. However,
when users run Hudi on older Hadoop or customized FileSystem implementation
whose FileStatus is not serializable then it's possible to run into
serialization issue.
Exception:
{code:java}
com.esotericsoftware.kryo.KryoException:
java.util.ConcurrentModificationException Caused by:
java.util.ConcurrentModificationException at
java.util.Vector$Itr.checkForComodification(Vector.java:1212 ) at
java.util.Vector$Itr.next(Vector.java:1165 ) at
com.esotericsoftware.kryo.serializers.CollectionSerializer.write(CollectionSerializer.java:99
) at
com.esotericsoftware.kryo.serializers.CollectionSerializer.write(CollectionSerializer.java:40
) at com.esotericsoftware.kryo.Kryo.writeObject(Kryo.java:575 ) at
com.esotericsoftware.kryo.serializers.ObjectField.write(ObjectField.java:79 )
{code}
The LOC that causes this issue:
https://github.com/apache/hudi/blob/master/hudi-common/src/main/java/org/apache/hudi/metadata/FileSystemBackedTableMetadata.java#L109
Driver stack trace:
{code:java}
Driver stacktrace:
at
org.apache.spark.scheduler.DAGScheduler.failJobAndIndependentStages(DAGScheduler.scala:2863)
at
org.apache.spark.scheduler.DAGScheduler.$anonfun$abortStage$2(DAGScheduler.scala:2799)
at
org.apache.spark.scheduler.DAGScheduler.$anonfun$abortStage$2$adapted(DAGScheduler.scala:2798)
at
scala.collection.mutable.ResizableArray.foreach(ResizableArray.scala:62)
at
scala.collection.mutable.ResizableArray.foreach$(ResizableArray.scala:55)
at scala.collection.mutable.ArrayBuffer.foreach(ArrayBuffer.scala:49)
at
org.apache.spark.scheduler.DAGScheduler.abortStage(DAGScheduler.scala:2798)
at
org.apache.spark.scheduler.DAGScheduler.$anonfun$handleTaskSetFailed$1(DAGScheduler.scala:1239)
at
org.apache.spark.scheduler.DAGScheduler.$anonfun$handleTaskSetFailed$1$adapted(DAGScheduler.scala:1239)
at scala.Option.foreach(Option.scala:407)
at
org.apache.spark.scheduler.DAGScheduler.handleTaskSetFailed(DAGScheduler.scala:1239)
at
org.apache.spark.scheduler.DAGSchedulerEventProcessLoop.doOnReceive(DAGScheduler.scala:3051)
at
org.apache.spark.scheduler.DAGSchedulerEventProcessLoop.onReceive(DAGScheduler.scala:2993)
at
org.apache.spark.scheduler.DAGSchedulerEventProcessLoop.onReceive(DAGScheduler.scala:2982)
at org.apache.spark.util.EventLoop$$anon$1.run(EventLoop.scala:49)
at
org.apache.spark.scheduler.DAGScheduler.runJob(DAGScheduler.scala:1009)
at org.apache.spark.SparkContext.runJob(SparkContext.scala:2229)
at org.apache.spark.SparkContext.runJob(SparkContext.scala:2250)
at org.apache.spark.SparkContext.runJob(SparkContext.scala:2269)
at org.apache.spark.SparkContext.runJob(SparkContext.scala:2294)
at org.apache.spark.rdd.RDD.$anonfun$collect$1(RDD.scala:1021)
at
org.apache.spark.rdd.RDDOperationScope$.withScope(RDDOperationScope.scala:151)
at
org.apache.spark.rdd.RDDOperationScope$.withScope(RDDOperationScope.scala:112)
at org.apache.spark.rdd.RDD.withScope(RDD.scala:406)
at org.apache.spark.rdd.RDD.collect(RDD.scala:1020)
at org.apache.spark.api.java.JavaRDDLike.collect(JavaRDDLike.scala:362)
at org.apache.spark.api.java.JavaRDDLike.collect$(JavaRDDLike.scala:361)
at
org.apache.spark.api.java.AbstractJavaRDDLike.collect(JavaRDDLike.scala:45)
at
org.apache.hudi.client.common.HoodieSparkEngineContext.flatMap(HoodieSparkEngineContext.java:137)
at
org.apache.hudi.metadata.FileSystemBackedTableMetadata.getAllPartitionPaths(FileSystemBackedTableMetadata.java:86)
at
org.apache.hudi.table.action.clean.CleanPlanner.getPartitionPathsForFullCleaning(CleanPlanner.java:214)
at
org.apache.hudi.table.action.clean.CleanPlanner.getPartitionPathsForCleanByCommits(CleanPlanner.java:168)
at
org.apache.hudi.table.action.clean.CleanPlanner.getPartitionPathsToClean(CleanPlanner.java:133)
at
org.apache.hudi.table.action.clean.CleanPlanActionExecutor.requestClean(CleanPlanActionExecutor.java:106)
at
org.apache.hudi.table.action.clean.CleanPlanActionExecutor.requestClean(CleanPlanActionExecutor.java:148)
at
org.apache.hudi.table.action.clean.CleanPlanActionExecutor.execute(CleanPlanActionExecutor.java:173)
at
org.apache.hudi.table.HoodieSparkCopyOnWriteTable.scheduleCleaning(HoodieSparkCopyOnWriteTable.java:204)
at
org.apache.hudi.client.BaseHoodieWriteClient.scheduleTableServiceInternal(BaseHoodieWriteClient.java:1354)
at
org.apache.hudi.client.BaseHoodieWriteClient.clean(BaseHoodieWriteClient.java:865)
at
org.apache.hudi.client.BaseHoodieWriteClient.clean(BaseHoodieWriteClient.java:827)
at
org.apache.hudi.async.AsyncCleanerService.lambda$startService$0(AsyncCleanerService.java:55)
at
java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1604)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
... 1 more
Caused by: com.esotericsoftware.kryo.KryoException:
java.util.ConcurrentModificationException
{code}
## JIRA info
- Link: https://issues.apache.org/jira/browse/HUDI-5936
- Type: Bug
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