[GitHub] [hudi] amrishlal commented on issue #9282: [ISSUE] Hudi 0.13.0. Spark 3.3.2 Deltastreamed table read failure

["amrishlal (via GitHub)" <gi...@apache.org>]

amrishlal commented on issue #9282:
URL: https://github.com/apache/hudi/issues/9282#issuecomment-1663107557

   @rmnlchh @ad1happy2go I am looking at the following part of the stack trace:
   
   ```
   Cause: java.lang.IllegalArgumentException: For input string: "null"
   at scala.collection.immutable.StringLike.parseBoolean(StringLike.scala:330)
   at scala.collection.immutable.StringLike.toBoolean(StringLike.scala:289)
   at scala.collection.immutable.StringLike.toBoolean$(StringLike.scala:289)
   at scala.collection.immutable.StringOps.toBoolean(StringOps.scala:33)
   at org.apache.spark.sql.execution.datasources.parquet.ParquetToSparkSchemaConverter.(ParquetSchemaConverter.scala:70)
   at org.apache.spark.sql.execution.datasources.parquet.HoodieParquetFileFormatHelper$.buildImplicitSchemaChangeInfo(HoodieParquetFileFormatHelper.scala:30)
   ```
   The stack trace seems to indicate that there was a problem while trying to convert a string value into boolean (see code line at [spark v3.3.2 ParquetSchemaConverter.scala:70](https://github.com/apache/spark/blob/5103e00c4ce5fcc4264ca9c4df12295d42557af6/sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/parquet/ParquetSchemaConverter.scala#L70) which I have pasted below):
   
   `conf.get(SQLConf.LEGACY_PARQUET_NANOS_AS_LONG.key).toBoolean)`
   
   This line seems to indicate that you need to set `spark.sql.legacy.parquet.nanosAsLong` to enter 'true' or 'false' to avoid this exception from coming up (see definition of [LEGACY_PARQUET_NANOS_AS_LONG](https://github.com/apache/spark/blob/5103e00c4ce5fcc4264ca9c4df12295d42557af6/sql/catalyst/src/main/scala/org/apache/spark/sql/internal/SQLConf.scala#L3462C87-L3462C87) here). Please let me know if this doesn't fix the issue.
   


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