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Type: Task
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Resolution: Fixed
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Priority: Major - P3
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Affects Version/s: None
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Component/s: None
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Sharding
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Fully Compatible
On FCV upgrade to 5.0, make changes to the indexes for config.chunks as to:
- Create uuid-based indexes (uuid_1_min_1, uuid_1_shard_1_min_1, uuid_1_lastmod_1)
- Drop nss-based indexes (ns_1_min_1, ns_1_shard_1_min_1, ns_1_lastmod_1)
On FCV downgrade from 5.0 to earlier:
- Create the nss-based indexes
- Drop the uuid-based indexes