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Posted to commits@hudi.apache.org by "Raymond Xu (Jira)" <ji...@apache.org> on 2022/02/28 22:49:00 UTC
[jira] [Commented] (HUDI-2003) Auto Compute Compression ratio for input data to output parquet/orc file size
[ https://issues.apache.org/jira/browse/HUDI-2003?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17499211#comment-17499211 ]
Raymond Xu commented on HUDI-2003:
----------------------------------
[~x1q1j1] more info in the related ticket HUDI-64
> Auto Compute Compression ratio for input data to output parquet/orc file size
> -----------------------------------------------------------------------------
>
> Key: HUDI-2003
> URL: https://issues.apache.org/jira/browse/HUDI-2003
> Project: Apache Hudi
> Issue Type: Improvement
> Components: writer-core
> Reporter: Vinay
> Assignee: Forward Xu
> Priority: Blocker
> Labels: user-support-issues
> Fix For: 0.11.0
>
>
> Context :
> Submitted a spark job to read 3-4B ORC records and wrote to Hudi format. Creating the following table with all the runs that I had carried out based on different options
>
> ||CONFIG ||Number of Files Created||Size of each file||
> |PARQUET_FILE_MAX_BYTES=DEFAULT|30K|21MB|
> |PARQUET_FILE_MAX_BYTES=1GB|3700|178MB|
> |PARQUET_FILE_MAX_BYTES=1GB
> COPY_ON_WRITE_TABLE_INSERT_SPLIT_SIZE=1100000|Same as before|Same as before|
> |PARQUET_FILE_MAX_BYTES=1GB
> BULKINSERT_PARALLELISM=100|Same as before|Same as before|
> |PARQUET_FILE_MAX_BYTES=4GB|1600|675MB|
> |PARQUET_FILE_MAX_BYTES=6GB|669|1012MB|
> Based on this runs, it feels that the compression ratio is off.
>
>
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