apache / apache/parquet-java

Encrypted parquet files can't have more than 32767 pages per chunk: 32768

Abierto
#1,687 16 comentarios 0 reacciones 0 asignados Ver en GitHub
Component: Parquet Priority: Major Type: bug
Lenguaje dominante
Java
Estrellas
3.1k
Forks
1.6k
Merge medio
3 d 12 h
PR fusionados (30 d)
33

Descripción

When we were writing an encrypted file, we encountered the following error:
```java

Encrypted parquet files can't have more than 32767 pages per chunk: 32768
```
 

**Error Stack:**
```java

org.apache.parquet.crypto.ParquetCryptoRuntimeException: Encrypted parquet files can't have more than 32767 pages per chunk: 32768

at org.apache.parquet.crypto.AesCipher.quickUpdatePageAAD(AesCipher.java:131)
at org.apache.parquet.hadoop.ColumnChunkPageWriteStore$ColumnChunkPageWriter.writePage(ColumnChunkPageWriteStore.java:178)
at org.apache.parquet.column.impl.ColumnWriterV1.writePage(ColumnWriterV1.java:67)
at org.apache.parquet.column.impl.ColumnWriterBase.writePage(ColumnWriterBase.java:392)
at org.apache.parquet.column.impl.ColumnWriteStoreBase.sizeCheck(ColumnWriteStoreBase.java:231)
at org.apache.parquet.column.impl.ColumnWriteStoreBase.endRecord(ColumnWriteStoreBase.java:216)
at org.apache.parquet.column.impl.ColumnWriteStoreV1.endRecord(ColumnWriteStoreV1.java:29)
at org.apache.parquet.io.MessageColumnIO$MessageColumnIORecordConsumer.endMessage(MessageColumnIO.java:295)
```
 

**Reasons:**
The `getBufferedSize` method of [FallbackValuesWriter](https://github.com/apache/parquet-mr/blob/19f284355847696fa254c789ab93c42db9af5982/parquet-column/src/main/java/org/apache/parquet/column/values/fallback/FallbackValuesWriter.java#L73)
returns raw data size to decide if we want to flush the page, 
so the actual size of the page written could be much more smaller due to dictionary encoding. This prevents page being too big when fallback happens, but can also produce too many pages in a single column chunk. On the other side, the encryption module only supports up to  32767 pages per chunk, as we use `Short` to store page ordinal as a part of [AAD](https://github.com/apache/parquet-format/blob/master/Encryption.md#442-aad-suffix). 
 
**Reproduce:**
**[reproduce.zip](reproduce.zip)**

**Reporter**: [Ence Wang](https://issues.apache.org/jira/secure/ViewProfile.jspa?name=encewang)
#### Original Issue Attachments:
- [image-2024-02-04-19-21-41-207.png](https://issues.apache.org/jira/secure/attachment/13066457/image-2024-02-04-19-21-41-207.png)
- [reproduce.zip](https://issues.apache.org/jira/secure/attachment/13066328/reproduce.zip)

**Note**: *This issue was originally created as [PARQUET-2424](https://issues.apache.org/jira/browse/PARQUET-2424). Please see the [migration documentation](https://issues.apache.org/jira/browse/PARQUET-2502) for further details.*

Guía de contribución

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Línea de trabajo

Start with FallbackValuesWriter.getBufferedSize and trace the page-flush path through ColumnChunkPageWriteStore.ColumnChunkPageWriter.writePage and AesCipher.quickUpdatePageAAD. Use reproduce.zip to reproduce the 32,768-page encrypted column chunk and inspect how page ordinals are encoded. Done means the reproduced encrypted write completes without exceeding the supported page-ordinal limit.

Escrito por el modelo de indexación a partir del texto del issue.

Evaluación

Stack tecnológico
java
Área
data-engineering, security
Tipo de issue
Error
Dificultad
4/5
Tiempo estimado
3-5 días
Estado de actividad
Estancado
Claridad
Bastante claro
Aptitud para principiantes
35/100

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