分区增量表写入检查点失败

Question

我将pyspark与spark 3.2.1和delta表包("io.delta:delta-core_2.12:2.1.0"(一起使用。

我已经按照代码、年份和月份对我的表进行了分区，如下所示：

table.write.partitionBy("Code", "Year", "Month").format('delta').save(path)

当我在此表上运行合并时：

deltaTable.alias("t0").merge(
df.alias("t1"),
" t0.Code= t1.CodeAND "
" t0.Year = t1.Year AND "
" t0.Month = t1.Month AND "
" t0.Date = t1.Date"
).whenMatchedUpdate(
set={
...
}
).execute()

我收到以下警告：

WARN DAGScheduler: Broadcasting large task binary with size 1861.8 KiB

几分钟后，我出现了以下错误：

py4j.protocol.Py4JJavaError: An error occurred while calling o2070.execute.
: java.lang.NoSuchMethodError: org.apache.spark.sql.catalyst.expressions.ElementAt$.apply$default$3()Lscala/Option;
at org.apache.spark.sql.delta.CheckpointV2$.$anonfun$extractPartitionValues$1(Checkpoints.scala:727)
at scala.collection.TraversableLike.$anonfun$map$1(TraversableLike.scala:286)
at scala.collection.Iterator.foreach(Iterator.scala:943)
at scala.collection.Iterator.foreach$(Iterator.scala:943)
at scala.collection.AbstractIterator.foreach(Iterator.scala:1431)
at scala.collection.IterableLike.foreach(IterableLike.scala:74)
at scala.collection.IterableLike.foreach$(IterableLike.scala:73)
at org.apache.spark.sql.types.StructType.foreach(StructType.scala:102)
at scala.collection.TraversableLike.map(TraversableLike.scala:286)
at scala.collection.TraversableLike.map$(TraversableLike.scala:279)
at org.apache.spark.sql.types.StructType.map(StructType.scala:102)
at org.apache.spark.sql.delta.CheckpointV2$.extractPartitionValues(Checkpoints.scala:724)
at org.apache.spark.sql.delta.Checkpoints$.buildCheckpoint(Checkpoints.scala:689)
at org.apache.spark.sql.delta.Checkpoints$.$anonfun$writeCheckpoint$1(Checkpoints.scala:531)
at org.apache.spark.sql.delta.metering.DeltaLogging.withDmqTag(DeltaLogging.scala:143)
at org.apache.spark.sql.delta.metering.DeltaLogging.withDmqTag$(DeltaLogging.scala:142)
at org.apache.spark.sql.delta.Checkpoints$.withDmqTag(Checkpoints.scala:460)
at org.apache.spark.sql.delta.Checkpoints$.writeCheckpoint(Checkpoints.scala:487)
at org.apache.spark.sql.delta.Checkpoints.writeCheckpointFiles(Checkpoints.scala:361)
at org.apache.spark.sql.delta.Checkpoints.writeCheckpointFiles$(Checkpoints.scala:359)
at org.apache.spark.sql.delta.DeltaLog.writeCheckpointFiles(DeltaLog.scala:63)
at org.apache.spark.sql.delta.Checkpoints.checkpointAndCleanUpDeltaLog(Checkpoints.scala:346)
at org.apache.spark.sql.delta.Checkpoints.checkpointAndCleanUpDeltaLog$(Checkpoints.scala:344)
at org.apache.spark.sql.delta.DeltaLog.checkpointAndCleanUpDeltaLog(DeltaLog.scala:63)
at org.apache.spark.sql.delta.Checkpoints.$anonfun$checkpoint$2(Checkpoints.scala:318)
at scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:23)
at org.apache.spark.sql.delta.metering.DeltaLogging.recordFrameProfile(DeltaLogging.scala:139)
at org.apache.spark.sql.delta.metering.DeltaLogging.recordFrameProfile$(DeltaLogging.scala:137)
at org.apache.spark.sql.delta.DeltaLog.recordFrameProfile(DeltaLog.scala:63)
at org.apache.spark.sql.delta.metering.DeltaLogging.$anonfun$recordDeltaOperationInternal$1(DeltaLogging.scala:132)
at com.databricks.spark.util.DatabricksLogging.recordOperation(DatabricksLogging.scala:77)
at com.databricks.spark.util.DatabricksLogging.recordOperation$(DatabricksLogging.scala:67)
at org.apache.spark.sql.delta.DeltaLog.recordOperation(DeltaLog.scala:63)
at org.apache.spark.sql.delta.metering.DeltaLogging.recordDeltaOperationInternal(DeltaLogging.scala:131)
at org.apache.spark.sql.delta.metering.DeltaLogging.recordDeltaOperation(DeltaLogging.scala:121)
at org.apache.spark.sql.delta.metering.DeltaLogging.recordDeltaOperation$(DeltaLogging.scala:109)
at org.apache.spark.sql.delta.DeltaLog.recordDeltaOperation(DeltaLog.scala:63)
at org.apache.spark.sql.delta.Checkpoints.$anonfun$checkpoint$1(Checkpoints.scala:314)
at scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:23)
at org.apache.spark.sql.delta.metering.DeltaLogging.withDmqTag(DeltaLogging.scala:143)
at org.apache.spark.sql.delta.metering.DeltaLogging.withDmqTag$(DeltaLogging.scala:142)
at org.apache.spark.sql.delta.DeltaLog.withDmqTag(DeltaLog.scala:63)
at org.apache.spark.sql.delta.Checkpoints.checkpoint(Checkpoints.scala:313)
at org.apache.spark.sql.delta.Checkpoints.checkpoint$(Checkpoints.scala:312)
at org.apache.spark.sql.delta.DeltaLog.checkpoint(DeltaLog.scala:63)
at org.apache.spark.sql.delta.OptimisticTransactionImpl.postCommit(OptimisticTransaction.scala:1097)
at org.apache.spark.sql.delta.OptimisticTransactionImpl.postCommit$(OptimisticTransaction.scala:1092)
at org.apache.spark.sql.delta.OptimisticTransaction.postCommit(OptimisticTransaction.scala:101)
at org.apache.spark.sql.delta.OptimisticTransactionImpl.liftedTree1$1(OptimisticTransaction.scala:750)
at org.apache.spark.sql.delta.OptimisticTransactionImpl.$anonfun$commit$1(OptimisticTransaction.scala:691)
at scala.runtime.java8.JFunction0$mcJ$sp.apply(JFunction0$mcJ$sp.java:23)
at org.apache.spark.sql.delta.metering.DeltaLogging.recordFrameProfile(DeltaLogging.scala:139)
at org.apache.spark.sql.delta.metering.DeltaLogging.recordFrameProfile$(DeltaLogging.scala:137)
at org.apache.spark.sql.delta.OptimisticTransaction.recordFrameProfile(OptimisticTransaction.scala:101)
at org.apache.spark.sql.delta.metering.DeltaLogging.$anonfun$recordDeltaOperationInternal$1(DeltaLogging.scala:132)
at com.databricks.spark.util.DatabricksLogging.recordOperation(DatabricksLogging.scala:77)
at com.databricks.spark.util.DatabricksLogging.recordOperation$(DatabricksLogging.scala:67)
at org.apache.spark.sql.delta.OptimisticTransaction.recordOperation(OptimisticTransaction.scala:101)
at org.apache.spark.sql.delta.metering.DeltaLogging.recordDeltaOperationInternal(DeltaLogging.scala:131)
at org.apache.spark.sql.delta.metering.DeltaLogging.recordDeltaOperation(DeltaLogging.scala:121)
at org.apache.spark.sql.delta.metering.DeltaLogging.recordDeltaOperation$(DeltaLogging.scala:109)
at org.apache.spark.sql.delta.OptimisticTransaction.recordDeltaOperation(OptimisticTransaction.scala:101)
at org.apache.spark.sql.delta.OptimisticTransactionImpl.commit(OptimisticTransaction.scala:688)
at org.apache.spark.sql.delta.OptimisticTransactionImpl.commit$(OptimisticTransaction.scala:686)
at org.apache.spark.sql.delta.OptimisticTransaction.commit(OptimisticTransaction.scala:101)
at org.apache.spark.sql.delta.commands.MergeIntoCommand.$anonfun$run$2(MergeIntoCommand.scala:363)
at org.apache.spark.sql.delta.commands.MergeIntoCommand.$anonfun$run$2$adapted(MergeIntoCommand.scala:319)
at org.apache.spark.sql.delta.DeltaLog.withNewTransaction(DeltaLog.scala:221)
at org.apache.spark.sql.delta.commands.MergeIntoCommand.$anonfun$run$1(MergeIntoCommand.scala:319)
at scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:23)
at org.apache.spark.sql.delta.metering.DeltaLogging.recordFrameProfile(DeltaLogging.scala:139)
at org.apache.spark.sql.delta.metering.DeltaLogging.recordFrameProfile$(DeltaLogging.scala:137)
at org.apache.spark.sql.delta.commands.MergeIntoCommand.recordFrameProfile(MergeIntoCommand.scala:215)
at org.apache.spark.sql.delta.metering.DeltaLogging.$anonfun$recordDeltaOperationInternal$1(DeltaLogging.scala:132)
at com.databricks.spark.util.DatabricksLogging.recordOperation(DatabricksLogging.scala:77)
at com.databricks.spark.util.DatabricksLogging.recordOperation$(DatabricksLogging.scala:67)
at org.apache.spark.sql.delta.commands.MergeIntoCommand.recordOperation(MergeIntoCommand.scala:215)
at org.apache.spark.sql.delta.metering.DeltaLogging.recordDeltaOperationInternal(DeltaLogging.scala:131)
at org.apache.spark.sql.delta.metering.DeltaLogging.recordDeltaOperation(DeltaLogging.scala:121)
at org.apache.spark.sql.delta.metering.DeltaLogging.recordDeltaOperation$(DeltaLogging.scala:109)
at org.apache.spark.sql.delta.commands.MergeIntoCommand.recordDeltaOperation(MergeIntoCommand.scala:215)
at org.apache.spark.sql.delta.commands.MergeIntoCommand.run(MergeIntoCommand.scala:317)
at io.delta.tables.DeltaMergeBuilder.$anonfun$execute$1(DeltaMergeBuilder.scala:230)
at org.apache.spark.sql.delta.util.AnalysisHelper.improveUnsupportedOpError(AnalysisHelper.scala:104)
at org.apache.spark.sql.delta.util.AnalysisHelper.improveUnsupportedOpError$(AnalysisHelper.scala:90)
at io.delta.tables.DeltaMergeBuilder.improveUnsupportedOpError(DeltaMergeBuilder.scala:122)
at io.delta.tables.DeltaMergeBuilder.execute(DeltaMergeBuilder.scala:206)
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 py4j.reflection.MethodInvoker.invoke(MethodInvoker.java:244)
at py4j.reflection.ReflectionEngine.invoke(ReflectionEngine.java:357)
at py4j.Gateway.invoke(Gateway.java:282)
at py4j.commands.AbstractCommand.invokeMethod(AbstractCommand.java:132)
at py4j.commands.CallCommand.execute(CallCommand.java:79)
at py4j.ClientServerConnection.waitForCommands(ClientServerConnection.java:182)
at py4j.ClientServerConnection.run(ClientServerConnection.java:106)
at java.lang.Thread.run(Thread.java:748)

只有当表被分区时才会发生此错误！如果我不在文件夹上使用分区，我的代码会正常运行。

我在for循环中使用这段代码，对该表执行多次更新！

所以我的疑问是：为什么在对表进行分区时会发生这种情况

Answer 1

您使用的是不兼容的Delta Lake版本——正如您在文档中看到的，2.1.0版本与Spark 3.3.0兼容，因此您无法将其与3.2.1一起使用。你需要使用2.0.1而不是