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  1. Documentation
  2. DOCS-2924

Document the downgrade steps for a sharded cluster

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    • Icon: Task Task
    • Resolution: Done
    • Icon: Major - P3 Major - P3
    • v1.3.2
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    • manual
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    Description

      http://docs.mongodb.org/master/release-notes/2.6-upgrade

      Apart from downgrading Authentication model, Text index and 2dsphere index, the downgrade order should be opposite with the upgrade order, so it should be:

      • Downgrade each shard using rolling downgrade.
      • Downgrade the config servers. The first config server in the mongos --configdb argument should be downgraded last.
      • Downgrade the mongos. It looks like there is no metadata change from v4 to v5, so the downgrade should be just a binary drop-in replacement.

      It would be nice if we can document these steps.

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            kay.kim@mongodb.com Kay Kim (Inactive)
            linda.qin@mongodb.com Linda Qin
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            Dates

              Created:
              Updated:
              Resolved:
              9 years, 47 weeks, 6 days ago