[ 
https://issues.apache.org/jira/browse/HUDI-6846?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

HBG updated HUDI-6846:
----------------------
    Description: 
*Error Stack*

{panel:title=My title}
23/09/07 15:43:05 INFO [shutdown-hook-0] ApplicationMaster: Unregistering 
ApplicationMaster with FAILED (diag message: User class threw exception: 
org.apache.spark.SparkException: Job aborted due to stage failure: Task 10 in 
stage 2.0 failed 4 times, most recent failure: Lost task 10.3 in stage 2.0 (TID 
1013) (ip-10-169-32-164.idata-server.shopee.io executor 42): 
java.lang.IllegalArgumentException: At least two file groups should be provided 
for merging
        at 
org.apache.hudi.common.util.ValidationUtils.checkArgument(ValidationUtils.java:40)
        at 
org.apache.hudi.index.bucket.ConsistentBucketIdentifier.mergeBucket(ConsistentBucketIdentifier.java:115)
        at 
org.apache.hudi.client.clustering.plan.strategy.SparkConsistentBucketClusteringPlanStrategy.buildMergeClusteringGroup(SparkConsistentBucketClusteringPlanStrategy.java:279)
        at 
org.apache.hudi.client.clustering.plan.strategy.SparkConsistentBucketClusteringPlanStrategy.buildClusteringGroupsForPartition(SparkConsistentBucketClusteringPlanStrategy.java:142)
        at 
org.apache.hudi.table.action.cluster.strategy.PartitionAwareClusteringPlanStrategy.lambda$generateClusteringPlan$4e6aac78$1(PartitionAwareClusteringPlanStrategy.java:95)
        at 
org.apache.hudi.client.common.HoodieSparkEngineContext.lambda$flatMap$7d470b86$1(HoodieSparkEngineContext.java:144)
        at 
org.apache.spark.api.java.JavaRDDLike.$anonfun$flatMap$1(JavaRDDLike.scala:125)
        at scala.collection.Iterator$$anon$11.nextCur(Iterator.scala:484)
        at scala.collection.Iterator$$anon$11.hasNext(Iterator.scala:490)
        at scala.collection.Iterator.foreach(Iterator.scala:941)
        at scala.collection.Iterator.foreach$(Iterator.scala:941)
        at scala.collection.AbstractIterator.foreach(Iterator.scala:1429)
        at scala.collection.generic.Growable.$plus$plus$eq(Growable.scala:62)
        at scala.collection.generic.Growable.$plus$plus$eq$(Growable.scala:53)
        at 
scala.collection.mutable.ArrayBuffer.$plus$plus$eq(ArrayBuffer.scala:105)
        at 
scala.collection.mutable.ArrayBuffer.$plus$plus$eq(ArrayBuffer.scala:49)
        at scala.collection.TraversableOnce.to(TraversableOnce.scala:315)
        at scala.collection.TraversableOnce.to$(TraversableOnce.scala:313)
        at scala.collection.AbstractIterator.to(Iterator.scala:1429)
        at scala.collection.TraversableOnce.toBuffer(TraversableOnce.scala:307)
        at scala.collection.TraversableOnce.toBuffer$(TraversableOnce.scala:307)
        at scala.collection.AbstractIterator.toBuffer(Iterator.scala:1429)
        at scala.collection.TraversableOnce.toArray(TraversableOnce.scala:294)
        at scala.collection.TraversableOnce.toArray$(TraversableOnce.scala:288)
        at scala.collection.AbstractIterator.toArray(Iterator.scala:1429)
        at org.apache.spark.rdd.RDD.$anonfun$collect$2(RDD.scala:1030)
        at 
org.apache.spark.SparkContext.$anonfun$runJob$5(SparkContext.scala:2255)
        at org.apache.spark.scheduler.ResultTask.runTask(ResultTask.scala:90)
        at org.apache.spark.scheduler.Task.run(Task.scala:131)
        at 
org.apache.spark.executor.Executor$TaskRunner.$anonfun$run$3(Executor.scala:497)
        at org.apache.spark.util.Utils$.tryWithSafeFinally(Utils.scala:1509)
        at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:500)
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:748)

{panel}


  was:
*Error Stack*
{{23/09/07 15:43:05 INFO [shutdown-hook-0] ApplicationMaster: Unregistering 
ApplicationMaster with FAILED (diag message: User class threw exception: 
org.apache.spark.SparkException: Job aborted due to stage failure: Task 10 in 
stage 2.0 failed 4 times, most recent failure: Lost task 10.3 in stage 2.0 (TID 
1013) (ip-10-169-32-164.idata-server.shopee.io executor 42): 
java.lang.IllegalArgumentException: At least two file groups should be provided 
for merging
        at 
org.apache.hudi.common.util.ValidationUtils.checkArgument(ValidationUtils.java:40)
        at 
org.apache.hudi.index.bucket.ConsistentBucketIdentifier.mergeBucket(ConsistentBucketIdentifier.java:115)
        at 
org.apache.hudi.client.clustering.plan.strategy.SparkConsistentBucketClusteringPlanStrategy.buildMergeClusteringGroup(SparkConsistentBucketClusteringPlanStrategy.java:279)
        at 
org.apache.hudi.client.clustering.plan.strategy.SparkConsistentBucketClusteringPlanStrategy.buildClusteringGroupsForPartition(SparkConsistentBucketClusteringPlanStrategy.java:142)
        at 
org.apache.hudi.table.action.cluster.strategy.PartitionAwareClusteringPlanStrategy.lambda$generateClusteringPlan$4e6aac78$1(PartitionAwareClusteringPlanStrategy.java:95)
        at 
org.apache.hudi.client.common.HoodieSparkEngineContext.lambda$flatMap$7d470b86$1(HoodieSparkEngineContext.java:144)
        at 
org.apache.spark.api.java.JavaRDDLike.$anonfun$flatMap$1(JavaRDDLike.scala:125)
        at scala.collection.Iterator$$anon$11.nextCur(Iterator.scala:484)
        at scala.collection.Iterator$$anon$11.hasNext(Iterator.scala:490)
        at scala.collection.Iterator.foreach(Iterator.scala:941)
        at scala.collection.Iterator.foreach$(Iterator.scala:941)
        at scala.collection.AbstractIterator.foreach(Iterator.scala:1429)
        at scala.collection.generic.Growable.$plus$plus$eq(Growable.scala:62)
        at scala.collection.generic.Growable.$plus$plus$eq$(Growable.scala:53)
        at 
scala.collection.mutable.ArrayBuffer.$plus$plus$eq(ArrayBuffer.scala:105)
        at 
scala.collection.mutable.ArrayBuffer.$plus$plus$eq(ArrayBuffer.scala:49)
        at scala.collection.TraversableOnce.to(TraversableOnce.scala:315)
        at scala.collection.TraversableOnce.to$(TraversableOnce.scala:313)
        at scala.collection.AbstractIterator.to(Iterator.scala:1429)
        at scala.collection.TraversableOnce.toBuffer(TraversableOnce.scala:307)
        at scala.collection.TraversableOnce.toBuffer$(TraversableOnce.scala:307)
        at scala.collection.AbstractIterator.toBuffer(Iterator.scala:1429)
        at scala.collection.TraversableOnce.toArray(TraversableOnce.scala:294)
        at scala.collection.TraversableOnce.toArray$(TraversableOnce.scala:288)
        at scala.collection.AbstractIterator.toArray(Iterator.scala:1429)
        at org.apache.spark.rdd.RDD.$anonfun$collect$2(RDD.scala:1030)
        at 
org.apache.spark.SparkContext.$anonfun$runJob$5(SparkContext.scala:2255)
        at org.apache.spark.scheduler.ResultTask.runTask(ResultTask.scala:90)
        at org.apache.spark.scheduler.Task.run(Task.scala:131)
        at 
org.apache.spark.executor.Executor$TaskRunner.$anonfun$run$3(Executor.scala:497)
        at org.apache.spark.util.Utils$.tryWithSafeFinally(Utils.scala:1509)
        at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:500)
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:748)
}}


> fix a bug of consistent bucket index clustering
> -----------------------------------------------
>
>                 Key: HUDI-6846
>                 URL: https://issues.apache.org/jira/browse/HUDI-6846
>             Project: Apache Hudi
>          Issue Type: Bug
>            Reporter: HBG
>            Priority: Major
>              Labels: pull-request-available
>
> *Error Stack*
> {panel:title=My title}
> 23/09/07 15:43:05 INFO [shutdown-hook-0] ApplicationMaster: Unregistering 
> ApplicationMaster with FAILED (diag message: User class threw exception: 
> org.apache.spark.SparkException: Job aborted due to stage failure: Task 10 in 
> stage 2.0 failed 4 times, most recent failure: Lost task 10.3 in stage 2.0 
> (TID 1013) (ip-10-169-32-164.idata-server.shopee.io executor 42): 
> java.lang.IllegalArgumentException: At least two file groups should be 
> provided for merging
>       at 
> org.apache.hudi.common.util.ValidationUtils.checkArgument(ValidationUtils.java:40)
>       at 
> org.apache.hudi.index.bucket.ConsistentBucketIdentifier.mergeBucket(ConsistentBucketIdentifier.java:115)
>       at 
> org.apache.hudi.client.clustering.plan.strategy.SparkConsistentBucketClusteringPlanStrategy.buildMergeClusteringGroup(SparkConsistentBucketClusteringPlanStrategy.java:279)
>       at 
> org.apache.hudi.client.clustering.plan.strategy.SparkConsistentBucketClusteringPlanStrategy.buildClusteringGroupsForPartition(SparkConsistentBucketClusteringPlanStrategy.java:142)
>       at 
> org.apache.hudi.table.action.cluster.strategy.PartitionAwareClusteringPlanStrategy.lambda$generateClusteringPlan$4e6aac78$1(PartitionAwareClusteringPlanStrategy.java:95)
>       at 
> org.apache.hudi.client.common.HoodieSparkEngineContext.lambda$flatMap$7d470b86$1(HoodieSparkEngineContext.java:144)
>       at 
> org.apache.spark.api.java.JavaRDDLike.$anonfun$flatMap$1(JavaRDDLike.scala:125)
>       at scala.collection.Iterator$$anon$11.nextCur(Iterator.scala:484)
>       at scala.collection.Iterator$$anon$11.hasNext(Iterator.scala:490)
>       at scala.collection.Iterator.foreach(Iterator.scala:941)
>       at scala.collection.Iterator.foreach$(Iterator.scala:941)
>       at scala.collection.AbstractIterator.foreach(Iterator.scala:1429)
>       at scala.collection.generic.Growable.$plus$plus$eq(Growable.scala:62)
>       at scala.collection.generic.Growable.$plus$plus$eq$(Growable.scala:53)
>       at 
> scala.collection.mutable.ArrayBuffer.$plus$plus$eq(ArrayBuffer.scala:105)
>       at 
> scala.collection.mutable.ArrayBuffer.$plus$plus$eq(ArrayBuffer.scala:49)
>       at scala.collection.TraversableOnce.to(TraversableOnce.scala:315)
>       at scala.collection.TraversableOnce.to$(TraversableOnce.scala:313)
>       at scala.collection.AbstractIterator.to(Iterator.scala:1429)
>       at scala.collection.TraversableOnce.toBuffer(TraversableOnce.scala:307)
>       at scala.collection.TraversableOnce.toBuffer$(TraversableOnce.scala:307)
>       at scala.collection.AbstractIterator.toBuffer(Iterator.scala:1429)
>       at scala.collection.TraversableOnce.toArray(TraversableOnce.scala:294)
>       at scala.collection.TraversableOnce.toArray$(TraversableOnce.scala:288)
>       at scala.collection.AbstractIterator.toArray(Iterator.scala:1429)
>       at org.apache.spark.rdd.RDD.$anonfun$collect$2(RDD.scala:1030)
>       at 
> org.apache.spark.SparkContext.$anonfun$runJob$5(SparkContext.scala:2255)
>       at org.apache.spark.scheduler.ResultTask.runTask(ResultTask.scala:90)
>       at org.apache.spark.scheduler.Task.run(Task.scala:131)
>       at 
> org.apache.spark.executor.Executor$TaskRunner.$anonfun$run$3(Executor.scala:497)
>       at org.apache.spark.util.Utils$.tryWithSafeFinally(Utils.scala:1509)
>       at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:500)
>       at 
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
>       at 
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
>       at java.lang.Thread.run(Thread.java:748)
> {panel}



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