@@ -15,7 +15,7 @@ or unreachable, you must manually change the set configuration as
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described in the procedures in this tutorial. Use the procedure
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appropriate to your version and situation.
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- Reconfiguring when a * majority* of members are down can include
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+ Reconfiguring when a majority of members are down can include
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situations where you have a network partition and where neither side of
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the partition has a majority. In such cases the two sides of the
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partition cannot see each other when determining whether a majority
@@ -38,19 +38,16 @@ reconfiguration of the replica set.
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The ``force`` option manually reconfigures the set. The option is
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intended only for serious problems, such as a disaster recovery
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- failover. Do not use ``force`` any time you reconfigure . Also, do not
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- include ``force`` into any automatic scripts and do not use ``force``
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+ failover. Do not use ``force`` for more routine reconfigurations . Also,
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+ do not use ``force`` in any automatic scripts and do not use ``force``
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when there is still a primary.
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To force reconfiguration:
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- 1. Back up a surviving member, both for safety and to bring up more new
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- set members more easily.
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+ 1. Back up a surviving member.
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- #. Connect to any surviving member and save the current configuration
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- so that you can switch back to the old configuration once the members
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- are restored. Consider the following example commands for saving the
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- configuration:
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+ #. Connect to a surviving member and save the current configuration.
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+ Consider the following example commands for saving the configuration:
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.. code-block:: javascript
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@@ -84,10 +81,12 @@ To force reconfiguration:
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hundreds of thousands. This is normal and designed to prevent set
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version collisions if network partitioning ends.
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- #. If any of the removed members come back online, there is the chance
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- they will elect a new primary, resulting in two primaries. To ensure
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- that the removed members do not elect a new primary, shut down or
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- decommission the removed members as soon as possible.
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+ #. If the failure or partition was only temporary, the removed members
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+ will detect that they have been removed from the set. If any of the
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+ removed members come back online, there is the chance they will elect
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+ a new primary, resulting in two primaries. To ensure that the removed
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+ members do not elect a new primary, shut down or decommission the
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+ removed members as soon as possible.
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Reconfigure by Replacing the Replica Set
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----------------------------------------
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