Question: When updating databases in a distributed system all the parts of the database that need to change as a result of an update are identified

When updating databases in a distributed system
all the parts of the database that need to change as a result of an update are identified and flagged as being intended for a change.
the database locks itself against other changes and performs the sequence of changes that were identified in the request phase.
The master database perform the changes and communicate the changes to other replications of the database.
every copy of the database perform the changes and communicate to the master if the change was successful or aborted.
When updating databases in a distributed system

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