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  1. Core Server
  2. SERVER-54977

Clarify that admin database collections cannot be dropped in sharded topology only

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    • Backwards Compatibility:
      Fully Compatible
    • Sprint:
      Sharding 2021-04-05

      Description

      In 4.7.0, attempting to drop any collection in the admin database produces (due to https://jira.mongodb.org/browse/SERVER-35804) the following error:

      > Mongo::Error::OperationFailure: Cannot drop collection in admin database (20) (on localhost:27017)

      This error message claims that collections cannot be dropped in the admin database. However, collections in admin database can very well be dropped in standalone and replica set topologies; the prohibition is only applicable in sharded clusters. The current wording was quite confusing to me when I first encountered it.

      I suggest explicitly stating that the prohibition only extends to sharded clusters.

      Besides admin database, the config database appears to be similarly affected.

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              Assignee:
              antonio.fuschetto Antonio Fuschetto
              Reporter:
              oleg.pudeyev Oleg Pudeyev
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