sollhui opened a new issue, #58780: URL: https://github.com/apache/doris/issues/58780
### Search before asking - [x] I had searched in the [issues](https://github.com/apache/doris/issues?q=is%3Aissue) and found no similar issues. ### Description # Background We observed that a large amount of memory expansion occurred during the down flushing of memtable, causing imports to be easily cancelled due to resource constraints or large data volumes. # Solution The blocks of memtable are organized by columns in memory, and the memory expansion of memtable during down flushing is greatly optimized by **flushing memtable and releasing related memory(such as memtable block and pages of column writer) columns by columns**： - [ ] implement freeing memory column by column for partial update https://github.com/apache/doris/pull/58275 ### Solution _No response_ ### Are you willing to submit PR? - [x] Yes I am willing to submit a PR! ### Code of Conduct - [x] I agree to follow this project's [Code of Conduct](https://www.apache.org/foundation/policies/conduct) -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
