lufzhangzitao opened a new issue, #7283: URL: https://github.com/apache/hudi/issues/7283
**_Tips before filing an issue_** - Have you gone through our [FAQs](https://hudi.apache.org/learn/faq/)? - Join the mailing list to engage in conversations and get faster support at [email protected]. - If you have triaged this as a bug, then file an [issue](https://issues.apache.org/jira/projects/HUDI/issues) directly. **Describe the problem you faced** first, If I use spark ddl to change the field data type or other ddl, and then I use spark df to add a new filed, then will throw a NullPointerException **Environment Description** * Hudi version :0.11.1 * Spark version :3.2.2 * Hive version :3.1.3 * Hadoop version :3.3.2 * Storage (HDFS/S3/GCS..) :hdfs **Additional context**      **Stacktrace** 14608 [Executor task launch worker for task 0.0 in stage 25.0 (TID 32)] ERROR org.apache.spark.executor.Executor - Exception in task 0.0 in stage 25.0 (TID 32) org.apache.hudi.exception.HoodieUpsertException: Error upserting bucketType UPDATE for partition :0 at org.apache.hudi.table.action.commit.BaseSparkCommitActionExecutor.handleUpsertPartition(BaseSparkCommitActionExecutor.java:329) at org.apache.hudi.table.action.commit.BaseSparkCommitActionExecutor.lambda$mapPartitionsAsRDD$a3ab3c4$1(BaseSparkCommitActionExecutor.java:244) at org.apache.spark.api.java.JavaRDDLike.$anonfun$mapPartitionsWithIndex$1(JavaRDDLike.scala:102) at org.apache.spark.api.java.JavaRDDLike.$anonfun$mapPartitionsWithIndex$1$adapted(JavaRDDLike.scala:102) at org.apache.spark.rdd.RDD.$anonfun$mapPartitionsWithIndex$2(RDD.scala:915) at org.apache.spark.rdd.RDD.$anonfun$mapPartitionsWithIndex$2$adapted(RDD.scala:915) at org.apache.spark.rdd.MapPartitionsRDD.compute(MapPartitionsRDD.scala:52) at org.apache.spark.rdd.RDD.computeOrReadCheckpoint(RDD.scala:373) at org.apache.spark.rdd.RDD.iterator(RDD.scala:337) at org.apache.spark.rdd.MapPartitionsRDD.compute(MapPartitionsRDD.scala:52) at org.apache.spark.rdd.RDD.computeOrReadCheckpoint(RDD.scala:373) at org.apache.spark.rdd.RDD.$anonfun$getOrCompute$1(RDD.scala:386) at org.apache.spark.storage.BlockManager.$anonfun$doPutIterator$1(BlockManager.scala:1498) at org.apache.spark.storage.BlockManager.org$apache$spark$storage$BlockManager$$doPut(BlockManager.scala:1408) at org.apache.spark.storage.BlockManager.doPutIterator(BlockManager.scala:1472) at org.apache.spark.storage.BlockManager.getOrElseUpdate(BlockManager.scala:1295) at org.apache.spark.rdd.RDD.getOrCompute(RDD.scala:384) at org.apache.spark.rdd.RDD.iterator(RDD.scala:335) at org.apache.spark.rdd.MapPartitionsRDD.compute(MapPartitionsRDD.scala:52) at org.apache.spark.rdd.RDD.computeOrReadCheckpoint(RDD.scala:373) at org.apache.spark.rdd.RDD.iterator(RDD.scala:337) 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:506) at org.apache.spark.util.Utils$.tryWithSafeFinally(Utils.scala:1462) at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:509) 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:750) Caused by: java.lang.NullPointerException at org.apache.hudi.internal.schema.visitor.NameToIDVisitor.beforeField(NameToIDVisitor.java:42) at org.apache.hudi.internal.schema.InternalSchemaBuilder.visit(InternalSchemaBuilder.java:87) at org.apache.hudi.internal.schema.InternalSchemaBuilder.buildNameToId(InternalSchemaBuilder.java:68) at org.apache.hudi.internal.schema.InternalSchemaBuilder.buildIdToName(InternalSchemaBuilder.java:56) at org.apache.hudi.internal.schema.InternalSchema.<init>(InternalSchema.java:72) at org.apache.hudi.internal.schema.InternalSchema.<init>(InternalSchema.java:62) at org.apache.hudi.internal.schema.utils.AvroSchemaEvolutionUtils.evolveSchemaFromNewAvroSchema(AvroSchemaEvolutionUtils.java:95) at org.apache.hudi.table.action.commit.HoodieMergeHelper.runMerge(HoodieMergeHelper.java:103) at org.apache.hudi.table.action.commit.BaseSparkCommitActionExecutor.handleUpdateInternal(BaseSparkCommitActionExecutor.java:358) at org.apache.hudi.table.action.commit.BaseSparkCommitActionExecutor.handleUpdate(BaseSparkCommitActionExecutor.java:349) at org.apache.hudi.table.action.commit.BaseSparkCommitActionExecutor.handleUpsertPartition(BaseSparkCommitActionExecutor.java:322) ... 28 more 14608 [Executor task launch worker for task 1.0 in stage 25.0 (TID 33)] ERROR org.apache.spark.executor.Executor - Exception in task 1.0 in stage 25.0 (TID 33) org.apache.hudi.exception.HoodieUpsertException: Error upserting bucketType UPDATE for partition :1 at org.apache.hudi.table.action.commit.BaseSparkCommitActionExecutor.handleUpsertPartition(BaseSparkCommitActionExecutor.java:329) at org.apache.hudi.table.action.commit.BaseSparkCommitActionExecutor.lambda$mapPartitionsAsRDD$a3ab3c4$1(BaseSparkCommitActionExecutor.java:244) at org.apache.spark.api.java.JavaRDDLike.$anonfun$mapPartitionsWithIndex$1(JavaRDDLike.scala:102) at org.apache.spark.api.java.JavaRDDLike.$anonfun$mapPartitionsWithIndex$1$adapted(JavaRDDLike.scala:102) at org.apache.spark.rdd.RDD.$anonfun$mapPartitionsWithIndex$2(RDD.scala:915) at org.apache.spark.rdd.RDD.$anonfun$mapPartitionsWithIndex$2$adapted(RDD.scala:915) at org.apache.spark.rdd.MapPartitionsRDD.compute(MapPartitionsRDD.scala:52) at org.apache.spark.rdd.RDD.computeOrReadCheckpoint(RDD.scala:373) at org.apache.spark.rdd.RDD.iterator(RDD.scala:337) at org.apache.spark.rdd.MapPartitionsRDD.compute(MapPartitionsRDD.scala:52) at org.apache.spark.rdd.RDD.computeOrReadCheckpoint(RDD.scala:373) at org.apache.spark.rdd.RDD.$anonfun$getOrCompute$1(RDD.scala:386) at org.apache.spark.storage.BlockManager.$anonfun$doPutIterator$1(BlockManager.scala:1498) at org.apache.spark.storage.BlockManager.org$apache$spark$storage$BlockManager$$doPut(BlockManager.scala:1408) at org.apache.spark.storage.BlockManager.doPutIterator(BlockManager.scala:1472) at org.apache.spark.storage.BlockManager.getOrElseUpdate(BlockManager.scala:1295) at org.apache.spark.rdd.RDD.getOrCompute(RDD.scala:384) at org.apache.spark.rdd.RDD.iterator(RDD.scala:335) at org.apache.spark.rdd.MapPartitionsRDD.compute(MapPartitionsRDD.scala:52) at org.apache.spark.rdd.RDD.computeOrReadCheckpoint(RDD.scala:373) at org.apache.spark.rdd.RDD.iterator(RDD.scala:337) 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$3(Executor.scala:506) at org.apache.spark.util.Utils$.tryWithSafeFinally(Utils.scala:1462) at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:509) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at java.lang.Thread.run(Thread.java:750) Caused by: java.lang.NullPointerException at org.apache.hudi.internal.schema.visitor.NameToIDVisitor.beforeField(NameToIDVisitor.java:42) at org.apache.hudi.internal.schema.InternalSchemaBuilder.visit(InternalSchemaBuilder.java:87) at org.apache.hudi.internal.schema.InternalSchemaBuilder.buildNameToId(InternalSchemaBuilder.java:68) at org.apache.hudi.internal.schema.InternalSchemaBuilder.buildIdToName(InternalSchemaBuilder.java:56) at org.apache.hudi.internal.schema.InternalSchema.<init>(InternalSchema.java:72) at org.apache.hudi.internal.schema.InternalSchema.<init>(InternalSchema.java:62) at org.apache.hudi.internal.schema.utils.AvroSchemaEvolutionUtils.evolveSchemaFromNewAvroSchema(AvroSchemaEvolutionUtils.java:95) at org.apache.hudi.table.action.commit.HoodieMergeHelper.runMerge(HoodieMergeHelper.java:103) at org.apache.hudi.table.action.commit.BaseSparkCommitActionExecutor.handleUpdateInternal(BaseSparkCommitActionExecutor.java:358) at org.apache.hudi.table.action.commit.BaseSparkCommitActionExecutor.handleUpdate(BaseSparkCommitActionExecutor.java:349) at org.apache.hudi.table.action.commit.BaseSparkCommitActionExecutor.handleUpsertPartition(BaseSparkCommitActionExecutor.java:322) ... 28 more -- This is an automated message from the Apache Git Service. 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