[SERVER-36888] Performance regression of operations in multi-document transactions required to check index catalog metadata more frequently Created: 27/Aug/18 Updated: 29/Oct/23 Resolved: 27/Nov/18 |
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| Status: | Closed |
| Project: | Core Server |
| Component/s: | Storage |
| Affects Version/s: | 4.0.1, 4.1.1 |
| Fix Version/s: | 4.1.6 |
| Type: | Bug | Priority: | Major - P3 |
| Reporter: | Louis Williams | Assignee: | Backlog - Storage Execution Team |
| Resolution: | Fixed | Votes: | 0 |
| Labels: | nyc | ||
| Remaining Estimate: | Not Specified | ||
| Time Spent: | Not Specified | ||
| Original Estimate: | Not Specified | ||
| Issue Links: |
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| Assigned Teams: |
Storage Execution
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| Backwards Compatibility: | Fully Compatible | ||||||||||||
| Operating System: | ALL | ||||||||||||
| Participants: | |||||||||||||
| Linked BF Score: | 0 | ||||||||||||
| Description |
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A performance regression for operations in multi-document transactions was introduced by both In certain bulk update workloads, the effects of both commits showed a combined regression of up to a 38% decrease in write throughput compared to previous test runs. This was previously a DEV invariant that was only executed in Debug builds. It used to be a fairly inexpensive call, but it's prevalence in code accompanied with its performance hit caused quite a significant regression. |
| Comments |
| Comment by Louis Williams [ 27/Nov/18 ] |
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This regression has been fixed by the index catalog iterator refactor introduced in |
| Comment by Ian Whalen (Inactive) [ 31/Aug/18 ] |
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This probably won't require any specific/dedicated work in 4.1, but the intent is for the Simultaneous Indexing on All Nodes project to introduce a fix for this in 4.1. Just need to double check on this fact before closing this ticket. |