Joey Pereira created PARQUET-2317:
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Summary: parquet-format and parquet-format-structures defines Util
with inconsitent methods provided
Key: PARQUET-2317
URL: https://issues.apache.org/jira/browse/PARQUET-2317
Project: Parquet
Issue Type: Bug
Components: parquet-format
Affects Versions: 1.13.0, 1.12.0
Reporter: Joey Pereira
I have been running into a bug due to \{{parquet-format}} and
\{{parquet-format-structures}} both defining the
\{{org.apache.parquet.format.Util}} class but doing so inconsistently.
Examples of this are several methods which include a \{{BlockCipher}} parameter
that are defined from \{{parquet-format-structures}} but not
\{{parquet-format}}. While invoking code that happens to use these, such as
\{{org.apache.parquet.hadoop.ParquetFileReader.readFooter}}, the code will fail
if the \{{parquet-format}} happens to be loaded first on the classpath.
Here is an example stack trace for a Scala Spark application.
{code}
Caused by: java.lang.NoSuchMethodError: 'org.apache.parquet.format.FileMetaData
org.apache.parquet.format.Util.readFileMetaData(java.io.InputStream,
org.apache.parquet.format.BlockCipher$Decryptor, byte[])'
at
org.apache.parquet.format.converter.ParquetMetadataConverter$3.visit(ParquetMetadataConverter.java:1441)
~[parquet_hadoop.jar:1.13.1]
at
org.apache.parquet.format.converter.ParquetMetadataConverter$3.visit(ParquetMetadataConverter.java:1438)
~[parquet_hadoop.jar:1.13.1]
at
org.apache.parquet.format.converter.ParquetMetadataConverter$NoFilter.accept(ParquetMetadataConverter.java:1173)
~[parquet_hadoop.jar:1.13.1]
at
org.apache.parquet.format.converter.ParquetMetadataConverter.readParquetMetadata(ParquetMetadataConverter.java:1438)
~[parquet_hadoop.jar:1.13.1]
at
org.apache.parquet.hadoop.ParquetFileReader.readFooter(ParquetFileReader.java:591)
~[parquet_hadoop.jar:1.13.1]
at
org.apache.parquet.hadoop.ParquetFileReader.readFooter(ParquetFileReader.java:536)
~[parquet_hadoop.jar:1.13.1]
at
org.apache.parquet.hadoop.ParquetFileReader.readFooter(ParquetFileReader.java:530)
~[parquet_hadoop.jar:1.13.1]
at
org.apache.parquet.hadoop.ParquetFileReader.readFooter(ParquetFileReader.java:478)
~[parquet_hadoop.jar:1.13.1]
... (my application code invoking the above)
{code}
Because of issues external to Parquet that I have yet to figure out (a complex
Spark and dependency setup), the classpaths are not deterministic and I am
unable to pin the \{{parquet-format-structures}} ahead. Nonetheless, this is a
fairly prickly edge to run into as both modules define overlapping classes.
\{{Util}} is not the only class that appears to be defined by both, just what I
have been focusing on due to this bug.
It appears these methods were introduced in at least 1.12:
https://github.com/apache/parquet-mr/commit/65b95fb72be8f5a8a193a6f7bc4560fdcd742fc7#diff-852341c99dcae06c8fa2b764bcf3d9e6860e40442d0ab1cf5b935df80a9cacb7
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