Hello all,
Thank you for the suggestions. I am trying to build parquet-mr from
IntelliJ now ("Build" -> "Build Project"), but I get the following
error:
/home/antoine/parquet/mr/parquet-common/src/test/java/org/apache/parquet/VersionTest.java:46:24
java: cannot find symbol
symbol: variable Version
location: class org.apache.parquet.VersionTest
Am I missing something obvious? Does a separate step need to be run
first?
Regards
Antoine.
On Thu, 11 Jan 2024 18:48:20 +0100
Antoine Pitrou <anto...@python.org> wrote:
> Hello,
>
> I'm trying to build parquet-mr and I'm unsure how to make the
> experience smooth enough for development. This is what I observe:
>
> 1) running the tests is extremely long (they have been running for 10
> minutes already, with no sign of nearing completion)
>
> 2) the output logs are a true firehose; there's a ton of extremely
> detailed (and probably superfluous) information being output, such as:
>
> 2024-01-11 18:45:33 INFO CodecPool - Got brand-new compressor [.zstd]
> 2024-01-11 18:45:33 INFO CodecPool - Got brand-new decompressor [.gz]
> 2024-01-11 18:45:33 INFO CodecPool - Got brand-new compressor [.zstd]
> 2024-01-11 18:45:33 INFO CodecPool - Got brand-new decompressor [.gz]
> 2024-01-11 18:45:33 INFO CodecPool - Got brand-new compressor [.zstd]
> 2024-01-11 18:45:33 INFO ParquetRewriter - Finish rewriting input file:
> file:/tmp/test12306662267168473656/test.parquet 2024-01-11 18:45:33
> INFO InternalParquetRecordReader - RecordReader initialized will read a
> total of 100000 records. 2024-01-11 18:45:33 INFO
> InternalParquetRecordReader - at row 0. reading next block 2024-01-11
> 18:45:33 INFO CodecPool - Got brand-new decompressor [.zstd] 2024-01-11
> 18:45:33 INFO InternalParquetRecordReader - block read in memory in 1
> ms. row count = 100 2024-01-11 18:45:33 INFO
> InternalParquetRecordReader - Assembled and processed 100 records from
> 6 columns in 0 ms: Infinity rec/ms, Infinity cell/ms 2024-01-11
> 18:45:33 INFO InternalParquetRecordReader - time spent so far 100%
> reading (1 ms) and 0% processing (0 ms) 2024-01-11 18:45:33 INFO
> InternalParquetRecordReader - at row 100. reading next block 2024-01-11
> 18:45:33 INFO InternalParquetRecordReader - block read in memory in 0
> ms. row count = 100 2024-01-11 18:45:33 INFO
> InternalParquetRecordReader - Assembled and processed 200 records from
> 6 columns in 1 ms: 200.0 rec/ms, 1200.0 cell/ms 2024-01-11 18:45:33
> INFO InternalParquetRecordReader - time spent so far 50% reading (1 ms)
> and 50% processing (1 ms) 2024-01-11 18:45:33 INFO
> InternalParquetRecordReader - at row 200. reading next block 2024-01-11
> 18:45:33 INFO InternalParquetRecordReader - block read in memory in 0
> ms. row count = 100 2024-01-11 18:45:33 INFO
> InternalParquetRecordReader - Assembled and processed 300 records from
> 6 columns in 1 ms: 300.0 rec/ms, 1800.0 cell/ms 2024-01-11 18:45:33
> INFO InternalParquetRecordReader - time spent so far 50% reading (1 ms)
> and 50% processing (1 ms)
>
> [etc.]
>
>
> 3) it seems the tests are leaving a lot of generated data files behind
> in /tmp/test..., though of course they might ultimately clean up at the
> end?
>
>
> How do people typically develop on parquet-mr? Do they have dedicated
> shell scripts that only build and test parts of the project? Do they
> use an IDE and select specific options there?
>
> Regards
>
> Antoine.
>
>
>
