[ 
https://issues.apache.org/jira/browse/PARQUET-1317?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16500406#comment-16500406
 ] 

ASF GitHub Bot commented on PARQUET-1317:
-----------------------------------------

zivanfi closed pull request #489: PARQUET-1317: Fix ParquetMetadataConverter 
throw NPE
URL: https://github.com/apache/parquet-mr/pull/489
 
 
   

This is a PR merged from a forked repository.
As GitHub hides the original diff on merge, it is displayed below for
the sake of provenance:

As this is a foreign pull request (from a fork), the diff is supplied
below (as it won't show otherwise due to GitHub magic):

diff --git 
a/parquet-hadoop/src/main/java/org/apache/parquet/format/converter/ParquetMetadataConverter.java
 
b/parquet-hadoop/src/main/java/org/apache/parquet/format/converter/ParquetMetadataConverter.java
index 40c0b841f..2baad15cd 100644
--- 
a/parquet-hadoop/src/main/java/org/apache/parquet/format/converter/ParquetMetadataConverter.java
+++ 
b/parquet-hadoop/src/main/java/org/apache/parquet/format/converter/ParquetMetadataConverter.java
@@ -1170,9 +1170,9 @@ private void buildChildren(Types.GroupBuilder builder,
       }
       if (schemaElement.isSetConverted_type()) {
         LogicalTypeAnnotation originalType = 
getOriginalType(schemaElement.converted_type, schemaElement);
-        LogicalTypeAnnotation newLogicalType = 
getOriginalType(schemaElement.logicalType);
+        LogicalTypeAnnotation newLogicalType = 
schemaElement.isSetLogicalType() ? getOriginalType(schemaElement.logicalType) : 
null;
         if (!originalType.equals(newLogicalType)) {
-          childBuilder.as(getOriginalType(schemaElement.converted_type, 
schemaElement));
+          childBuilder.as(originalType);
         }
       }
       if (schemaElement.isSetField_id()) {


 

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> ParquetMetadataConverter throw NPE
> ----------------------------------
>
>                 Key: PARQUET-1317
>                 URL: https://issues.apache.org/jira/browse/PARQUET-1317
>             Project: Parquet
>          Issue Type: Bug
>          Components: parquet-mr
>    Affects Versions: 1.10.1
>            Reporter: Yuming Wang
>            Assignee: Yuming Wang
>            Priority: Major
>
> How to reproduce:
> {code:scala}
> $ bin/spark-shell 
> scala> spark.range(10).selectExpr("cast(id as string) as 
> id").coalesce(1).write.parquet("/tmp/parquet-1317")
> scala> 
> java -jar ./parquet-tools/target/parquet-tools-1.10.1-SNAPSHOT.jar head 
> --debug 
> file:///tmp/parquet-1317/part-00000-6cfafbdd-fdeb-4861-8499-8583852ba437-c000.snappy.parquet
> {code}
> {noformat}
> java.io.IOException: Could not read footer: java.lang.NullPointerException
> at 
> org.apache.parquet.hadoop.ParquetFileReader.readAllFootersInParallel(ParquetFileReader.java:271)
> at 
> org.apache.parquet.hadoop.ParquetFileReader.readAllFootersInParallelUsingSummaryFiles(ParquetFileReader.java:202)
> at 
> org.apache.parquet.hadoop.ParquetFileReader.readFooters(ParquetFileReader.java:354)
> at 
> org.apache.parquet.tools.command.RowCountCommand.execute(RowCountCommand.java:88)
> at org.apache.parquet.tools.Main.main(Main.java:223)
> Caused by: java.lang.NullPointerException
> at 
> org.apache.parquet.format.converter.ParquetMetadataConverter.getOriginalType(ParquetMetadataConverter.java:828)
> at 
> org.apache.parquet.format.converter.ParquetMetadataConverter.buildChildren(ParquetMetadataConverter.java:1173)
> at 
> org.apache.parquet.format.converter.ParquetMetadataConverter.fromParquetSchema(ParquetMetadataConverter.java:1124)
> at 
> org.apache.parquet.format.converter.ParquetMetadataConverter.fromParquetMetadata(ParquetMetadataConverter.java:1058)
> at 
> org.apache.parquet.format.converter.ParquetMetadataConverter.readParquetMetadata(ParquetMetadataConverter.java:1052)
> at 
> org.apache.parquet.hadoop.ParquetFileReader.readFooter(ParquetFileReader.java:532)
> at 
> org.apache.parquet.hadoop.ParquetFileReader.readFooter(ParquetFileReader.java:505)
> at 
> org.apache.parquet.hadoop.ParquetFileReader.readFooter(ParquetFileReader.java:499)
> at 
> org.apache.parquet.hadoop.ParquetFileReader.readFooter(ParquetFileReader.java:476)
> at 
> org.apache.parquet.hadoop.ParquetFileReader$2.call(ParquetFileReader.java:261)
> at 
> org.apache.parquet.hadoop.ParquetFileReader$2.call(ParquetFileReader.java:257)
> at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> at 
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
> at 
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
> at java.lang.Thread.run(Thread.java:748)
> java.io.IOException: Could not read footer: 
> java.lang.NullPointerException{noformat}



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