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  1. Core Server
  2. SERVER-53255

Change config.chunks indexes on upgrade/downgrade

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    Description

      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

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            backlog-server-sharding Backlog - Sharding Team
            jordi.serra-torrens@mongodb.com Jordi Serra Torrens
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