[SERVER-68050] Change resharding split policy to create one chunk per shard by default Created: 14/Jul/22 Updated: 26/Oct/23 |
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| Status: | Blocked |
| Project: | Core Server |
| Component/s: | None |
| Affects Version/s: | None |
| Fix Version/s: | None |
| Type: | Task | Priority: | Major - P3 |
| Reporter: | Pierlauro Sciarelli | Assignee: | Backlog - Catalog and Routing |
| Resolution: | Unresolved | Votes: | 0 |
| Labels: | oldshardingemea | ||
| Remaining Estimate: | Not Specified | ||
| Time Spent: | Not Specified | ||
| Original Estimate: | Not Specified | ||
| Issue Links: |
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| Assigned Teams: |
Catalog and Routing
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| Sprint: | Sharding EMEA 2022-08-22, Sharding EMEA 2022-09-05, Sharding EMEA 2022-09-19, Sharding EMEA 2022-10-03, Sharding EMEA 2022-10-17, Sharding EMEA 2022-10-31, Sharding EMEA 2022-11-14, Sharding EMEA 2022-11-28, Sharding EMEA 2022-12-12, Sharding EMEA 2023-01-23, Sharding EMEA 2023-02-06, Sharding EMEA 2023-02-20, Sharding EMEA 2023-04-03, Sharding EMEA 2023-04-17, Sharding EMEA 2023-05-01, Sharding EMEA 2023-05-15 | ||||||||||||||||
| Participants: | |||||||||||||||||
| Description |
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The "No more auto-splitter" project eliminated the need for pre-splitting chunks as the balancer is now performing atomic split+move when data need to be moved around. However, the resharding initial split policy still expects an initial number of chunks that - unless differently specified - is the same number of chunks of the original collection. Purpose of this ticket is to rethink the current approach in order to do not create too many chunks. |