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Posted to commits@doris.apache.org by "yiguolei (via GitHub)" <gi...@apache.org> on 2025/12/19 07:58:11 UTC
[I] [Enhancement] Support recursive spill disk operator [doris]
yiguolei opened a new issue, #59194:
URL: https://github.com/apache/doris/issues/59194
### 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
At present, Doris's disk spilling mechanism works by splitting a hash table into a fixed number of partitions (e.g., 16) for disk writing, with no recursion implemented. Therefore, when memory is truly insufficient, the actual maximum memory footprint for disk spilling is only 15/16 of the total. We need to implement a recursive strategy that allows further recursive partitioning within each 1/16 partition. The goal is to run all TPC-DS 1TB queries with just 10GB of memory.
### Solution
_No response_
### Are you willing to submit PR?
- [ ] 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)
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Re: [I] [Enhancement] Support recursive spill disk operator [doris]
Posted by "github-actions[bot] (via GitHub)" <gi...@apache.org>.
github-actions[bot] commented on issue #59194:
URL: https://github.com/apache/doris/issues/59194#issuecomment-4736802623
We're closing this issue because it hasn't been updated in a while.
If you'd like to revive this issue, please reopen it and feel free a maintainer to remove the Stale tag!
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Re: [I] [Enhancement] Support recursive spill disk operator [doris]
Posted by "github-actions[bot] (via GitHub)" <gi...@apache.org>.
github-actions[bot] closed issue #59194: [Enhancement] Support recursive spill disk operator
URL: https://github.com/apache/doris/issues/59194
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