[SERVER-8853] MapReduce jobs execute exclusively on primaries Created: 05/Mar/13 Updated: 06/Dec/22 Resolved: 04/Feb/22 |
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| Status: | Closed |
| Project: | Core Server |
| Component/s: | MapReduce |
| Affects Version/s: | 2.4.1 |
| Fix Version/s: | None |
| Type: | Bug | Priority: | Major - P3 |
| Reporter: | Matt Narrell | Assignee: | Backlog - Query Optimization |
| Resolution: | Done | Votes: | 8 |
| Labels: | None | ||
| Remaining Estimate: | Not Specified | ||
| Time Spent: | Not Specified | ||
| Original Estimate: | Not Specified | ||
| Environment: |
CentOS release 6.3 (Final) 2.6.32-279.9.1.el6.x86_64 |
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| Assigned Teams: |
Query Optimization
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| Operating System: | Linux | ||||||||||||||||
| Steps To Reproduce: | All the mongod instances are @ 2.4.0-rc1 |
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| Description |
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We've upgraded our cluster to 2.4.0-rc1 and we're still not seeing the MapReduce jobs execute on the secondaries. We were hoping Attached is a sample Java application which can be used to illustrate the issue. Current state of affairs in 2.5.0:
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| Comments |
| Comment by Esha Bhargava [ 04/Feb/22 ] |
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Closing these tickets as part of the deprecation of mapReduce. |
| Comment by David Storch [ 17/Oct/19 ] |
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The query team should re-triage this. It sounds like the new agg-based implementation for MR will address this ticket. |