[SERVER-38326] mongos mapReduce cleanup doesn't obey request's writeConcern Created: 29/Nov/18 Updated: 29/Oct/23 Resolved: 02/May/19 |
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| Status: | Closed |
| Project: | Core Server |
| Component/s: | Sharding |
| Affects Version/s: | 4.1.5 |
| Fix Version/s: | 4.1.11 |
| Type: | Bug | Priority: | Major - P3 |
| Reporter: | Randolph Tan | Assignee: | Randolph Tan |
| Resolution: | Fixed | Votes: | 0 |
| Labels: | open_todo_in_code, todo_in_code | ||
| Remaining Estimate: | Not Specified | ||
| Time Spent: | Not Specified | ||
| Original Estimate: | Not Specified | ||
| Issue Links: |
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| Backwards Compatibility: | Fully Compatible | ||||||||
| Operating System: | ALL | ||||||||
| Sprint: | Sharding 2019-04-22, Sharding 2019-05-06 | ||||||||
| Participants: | |||||||||
| Description |
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https://github.com/mongodb/mongo/blob/r4.1.5/src/mongo/s/commands/cluster_map_reduce_cmd.cpp#L731 Note: this might be a minor issue in the real world, but it causes some issue in transaction testing because of 2 phase drops. The drop can acquire the database X lock later after the mapReduce has already finished and conflict with the transactions trying to get the same lock in the tests. |
| Comments |
| Comment by Githook User [ 02/May/19 ] |
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Author: {'name': 'Randolph Tan', 'username': 'renctan', 'email': 'randolph@10gen.com'}Message: |
| Comment by Randolph Tan [ 03/Dec/18 ] |
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kaloian.manassiev I temporarily blacklisted the map-reduce related tests in the passthrough because of this, the priority would depend on how bad we want to test mapReduce running before/after a multi-statment transaction. |
| Comment by Kaloian Manassiev [ 03/Dec/18 ] |
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renctan, is this something we need to do this iteration in order to unblock Cross-shard Transactions testing? It should be a fairly easy change and we can schedule it soon-ish. |