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  1. Compass
  2. COMPASS-1408

Can't see different indexes on primaries and secondaries

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    • Resolution: Won't Do
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    Description

      This process allows indexes to be built on the primary and secondaries of a replica set at different times, and indeed recommends building them on secondaries first:

      https://docs.mongodb.com/manual/tutorial/build-indexes-on-replica-sets/#build-indexes-on-all-secondaries

      From 2017 APAC Offsite, it is anecdotally quite common to build indexes only on secondaries, e.g. for analytics workloads.

      This screenshot is a test with the replica set connection in the top right Compass window, a direct connection to the primary in the bottom left window and a direct connection to the secondary in the bottom left window:

      My intuition is that Compass should show some kind of merge of the two states below, e.g. perhaps a warning triangle next to the index definition to indicate which nodes have the index present.

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            Unassigned Unassigned
            peter.schmidt Peter Schmidt
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