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  1. Cassandra
  2. CASSANDRA-11801

Add ability to disable schema changes, repairs, bootstraps, etc (during upgrades)

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      There are a lot of operations that aren't supposed to be run in a mixed version cluster: schema changes, repairs, topology changes, etc. However, it's easily possible for these operations to be accidentally run by a script, another user unaware of the upgrade, or an operator that's not aware of these rules.

      We should make it easy to follow the rules by making it possible to prevent/disable all of these operations through nodetool commands. At the start of an upgrade, an operator can disable all of these until the upgrade has been completed.

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              Unassigned Unassigned
              thobbs Tom Hobbs
              Paulo Motta
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