the-other-tim-brown opened a new pull request, #17822:
URL: https://github.com/apache/hudi/pull/17822

   ### Describe the issue this Pull Request addresses
   
   <!-- Either describe the issue inline here with motivation behind the 
changes 
        (or) link to an issue by including `Closes #<issue-number>` for 
context. 
        If this PR includes changes to the storage format, public APIs,
        or has breaking changes, use `!` (e.g., feat!: ...) -->
   There are a few performance issues in the current implementation of the S3 
events source for the HoodieStreamer that contribute to increased memory usage 
and inefficient CPU usage. 
   
   ### Summary and Changelog
   
   <!-- Short, plain-English summary of what users gain or what changed in 
behavior.
        Followed by a detailed log of all the changes. Highlight if any code 
was copied. -->
   - Use a single ObjectMapper instance instead of creating one per record
   - Use a leaner POJO to keep track of the information for deleting the 
message instead of keeping the full message content in memory
   - Allow the user to configure a number of partitions that the dataset 
outputs for better parallelism for the source
   - Use a url decoder instead of repeated replace calls
   
   ### Impact
   
   <!-- Describe any public API or user-facing feature change or any 
performance impact. -->
   Improves performance, especially around the parsing of the s3 events
   
   ### Risk Level
   
   <!-- Accepted values: none, low, medium or high. Other than `none`, explain 
the risk.
        If medium or high, explain what verification was done to mitigate the 
risks. -->
   Low
   
   ### Documentation Update
   
   <!-- Describe any necessary documentation update if there is any new 
feature, config, or user-facing change. If not, put "none".
   
   - The config description must be updated if new configs are added or the 
default value of the configs are changed.
   - Any new feature or user-facing change requires updating the Hudi website. 
Please follow the 
     [instruction](https://hudi.apache.org/contribute/developer-setup#website) 
to make changes to the website. -->
   
   ### Contributor's checklist
   
   - [ ] Read through [contributor's 
guide](https://hudi.apache.org/contribute/how-to-contribute)
   - [ ] Enough context is provided in the sections above
   - [ ] Adequate tests were added if applicable
   


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