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Posted to issues@paimon.apache.org by "Zouxxyy (via GitHub)" <gi...@apache.org> on 2024/07/11 02:13:27 UTC

[PR] [WIP][spark] Use paimon hash function to repartition when writing [paimon]

Zouxxyy opened a new pull request, #3726:
URL: https://github.com/apache/paimon/pull/3726

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Re: [PR] [WIP][spark] Use paimon hash function to repartition when writing [paimon]

Posted by "Zouxxyy (via GitHub)" <gi...@apache.org>.
Zouxxyy closed pull request #3726: [WIP][spark] Use paimon hash function to repartition when writing
URL: https://github.com/apache/paimon/pull/3726


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Re: [PR] [WIP][spark] Use paimon hash function to repartition when writing [paimon]

Posted by "Zouxxyy (via GitHub)" <gi...@apache.org>.
Zouxxyy commented on PR #3726:
URL: https://github.com/apache/paimon/pull/3726#issuecomment-2228584636

   This PR can avoid data skew, but it will introduce the following two problems,  close it now:
   1. the writing performance is several times slower with the same resources.
   2. due to the use of rdd, the spark UI cannot display sql correctly
   
   Perhaps we should look for a solution to this problem by sticking with dataframe.


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