[MCOL-5627] Memory oversubscription issues in 23.10. Created: 2023-12-14 Updated: 2024-02-07 |
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| Status: | In Progress |
| Project: | MariaDB ColumnStore |
| Component/s: | PrimProc |
| Affects Version/s: | 23.10.0 |
| Fix Version/s: | 23.10.1 |
| Type: | Task | Priority: | Major |
| Reporter: | Roman | Assignee: | Sergey Zefirov |
| Resolution: | Unresolved | Votes: | 0 |
| Labels: | None | ||
| Attachments: |
PrimProc.log
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| Issue Links: |
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| Sprint: | 2023-11, 2023-12 | ||||||||||||
| Description |
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There are evidences that 23.10 has some RAM allocations that are not accounted thus OOM killer events happens for the workload that works fine with the previous release 23.02. MCOL-5597 is an example. |
| Comments |
| Comment by Roman [ 2023-12-15 ] |
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It looks like the issue is triggered by GROUP_CONCAT|JSON_ARRAY functions. |