apache/parquet-java

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Apache Parquet Java

Stars: 3.1k
Forks: 1.6k
Open beginner issues: 0
Indexed issues: 580
Avg merge: 3d 12h
Merged PRs (30d): 33

Dominant language: Java
License: Apache-2.0
Last GitHub push: Sep 14, 2026
Latest indexed: Sep 14, 2026
Contributing guide: No contributing guide
Code of conduct: Code of conduct
Beginner labels: good first issue

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580 open issues indexed

Close Parquet github account to avoid confusion Open

Component: Parquet Priority: Major Type: enhancement

apache/parquet-java#2020 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Skip the storage of repetition level and definition level for all-null column Open

Component: Java Component: Parquet Priority: Minor Type: enhancement

apache/parquet-java#2022 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Implement BytesWritable in DataWritableWriter Class in parquet Open

Component: Java Component: Parquet Priority: Major Type: enhancement

apache/parquet-java#1477 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Delta Encoding is not used when dictionary enabled Open

Component: Java Component: Parquet Priority: Major Type: bug

apache/parquet-java#2024 · 7 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
The link to "Google Hangout" on parquet.apache.org is broken Open

Component: Parquet Priority: Major Type: enhancement

apache/parquet-java#2026 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Corrupt Parquet Files Open

Component: Java Component: Parquet Priority: Major Type: bug

apache/parquet-java#2032 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[CPP] Unable to read files written by parquet-cpp from parquet-tools Open

Component: Parquet Priority: Major Type: bug

apache/parquet-java#2033 · 12 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Efficient storage for several INT_8 and INT_16 Open

Component: Parquet Priority: Minor Type: enhancement

apache/parquet-java#2034 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Make MessageType serializable Open

Component: Java Component: Parquet Priority: Major Type: enhancement

apache/parquet-java#2035 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
ParquetMetadata.fromJSON method doesn't work Open

Component: Java Component: Parquet Priority: Major Type: bug

apache/parquet-java#1481 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
parquet-avro logical type support broke ability to use avro reflection with generics. Open

Component: Avro Component: Parquet Priority: Minor Type: bug

apache/parquet-java#1482 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
ParquetWriter.getDataSize NullPointerException after closed Open

Component: Java Component: Parquet Priority: Major Type: bug

apache/parquet-java#2037 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Min/Max record counts for block size checks are not configurable Open

Component: Parquet Priority: Major Type: enhancement

apache/parquet-java#2038 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
ParquetFileWriter.appendFile does not close file handle - resource leak Open

Component: Java Component: Parquet Priority: Major Type: bug

apache/parquet-java#2039 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
GroupColumnIO.getFirst() doesn't check for empty groups Open

Component: Java Component: Parquet Priority: Major Type: bug

apache/parquet-java#2044 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
C++: Check in release that the correct author is set in git Open

Component: Parquet Priority: Major Type: bug

apache/parquet-java#1485 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Getting Vistar Media Added to the Adopters page Open

Component: Parquet Priority: Minor Type: enhancement

apache/parquet-java#2047 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Mac build parquet failed Open

Component: Parquet Priority: Major Type: bug

apache/parquet-java#2050 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Missing field id support in parquet metadata Open

Component: Java Component: Parquet Priority: Major Type: bug

apache/parquet-java#2051 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Parquet file can not be read properly when it starts with an underscore Open

Component: Parquet Priority: Minor Type: bug

apache/parquet-java#2055 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Corrupt statistics test should include int96 Open

Component: Java Component: Parquet Priority: Major Type: bug

apache/parquet-java#2056 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Cannot read row group larger than 2GB Open

Component: Java Component: Parquet Priority: Major Type: bug

apache/parquet-java#2057 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
ColumnChunkPageWriter uses only heap memory. Open

Component: Java Component: Parquet Priority: Major Type: bug

apache/parquet-java#2060 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
bzip2 compression Open

Component: Parquet Priority: Major Type: enhancement

apache/parquet-java#2062 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
parquet-mr must handle statistics in files written by parquet-cpp Open

Component: Java Component: Parquet Priority: Major Type: bug

apache/parquet-java#2063 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Impossible to read thrift object from parquet file if it has List<Enum> field that was removed from thrift schema. Open

Component: Parquet Priority: Major Type: bug

apache/parquet-java#2069 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Parquet Combine Input format for MapReduce job Open

Component: Java Component: Parquet Priority: Major Type: enhancement

apache/parquet-java#2070 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Improve the creation of ExecutorService when reading footers Open

Component: Java Component: Parquet Priority: Minor Type: enhancement

apache/parquet-java#2071 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Improve the RLE encoding for Parquet Dictionary IDs Open

Component: Parquet Priority: Major Type: enhancement

apache/parquet-java#2073 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Support a better encoding for Parquet Dictionary Open

Component: Java Component: Parquet Priority: Major Type: enhancement

apache/parquet-java#2074 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Add a configurableValueWriterFactory for parquet-hadoop module Open

Component: Parquet Priority: Major Type: enhancement

apache/parquet-java#2075 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Parquet website pulls docs from wrong repo Open

Component: Parquet Priority: Major Type: bug

apache/parquet-java#2076 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
A NullPointerException in DictionaryValuesWriter when writing Parquet Open

Component: Parquet Priority: Major Type: bug

apache/parquet-java#2082 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Add Yetus InterfaceAudience annotations to Parquet Open

Component: Parquet Priority: Major Type: enhancement

apache/parquet-java#2086 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
ParquetRecordWriter does not provide interface like getRowCount(),getRawDataSize() like org.apache.orc.Writer Open

Component: Parquet Priority: Major Type: bug

apache/parquet-java#2087 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Reduce memory footprint for nulls caching Open

Component: Java Component: Parquet Priority: Major Type: enhancement

apache/parquet-java#2088 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Parquet-mr project build fails with parquet format 2.3.2-SNAPSHOT Open

Component: Java Component: Parquet Priority: Minor Type: enhancement

apache/parquet-java#2089 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
make it easy to read and write parquet files in java without depending on hadoop Open

Component: Parquet Priority: Major Type: enhancement

apache/parquet-java#1497 · 6 comments · 3 reactions · 0 assignees · Indexed Sep 14, 2026
Cannot build parquet-tools as per instructions Open

Component: Parquet Priority: Major Type: bug

apache/parquet-java#2091 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Parquet-cli convert-csv : Missing option -o for output file path in examples Open

Component: CLI Component: Parquet Priority: Minor Type: bug

apache/parquet-java#2092 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Parquet-cli convert-csv : Unknown --format option in example Open

Component: CLI Component: Parquet Priority: Minor Type: bug

apache/parquet-java#2093 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
parquet-tools merge does not work nor give any error message Open

Component: Parquet Priority: Major Type: bug

apache/parquet-java#2094 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Update Java for format 2.4.0 changes Open

Component: Java Component: Parquet Priority: Major Type: task

apache/parquet-java#2098 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Parquet Write bug - parquet data unreadable by hive or presto or spark 2.1 Open

Component: Parquet Priority: Major Type: bug

apache/parquet-java#1501 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Broken links and formatting problems in Parquet documentation Open

Component: Parquet Priority: Trivial Type: bug

apache/parquet-java#2104 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Question on pig loader read parquet file Open

Component: Java Component: Parquet Component: Pig Priority: Major Type: bug

apache/parquet-java#2106 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
com.fasterxml.jackson.core.jackson dependency harmonization Open

Component: Parquet Priority: Minor Type: enhancement

apache/parquet-java#2107 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Concurrent read micro benchmarks Open

Component: Java Component: Parquet Priority: Minor Type: enhancement

apache/parquet-java#2108 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Occasional corruption of parquet files , parquet writer might not be calling ParquetFileWriter->end() Open

Component: Parquet Priority: Major Type: bug

apache/parquet-java#2109 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Off heap memory leaks with large binary fields using Snappy Open

Component: Java Component: Parquet Priority: Major Type: bug

apache/parquet-java#2114 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026

apache/parquet-java

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