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Add the two new durability policies to the docs #1563

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GuptaManan100 merged 1 commit into from
Aug 21, 2023
Merged

Add the two new durability policies to the docs #1563

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2 changes: 2 additions & 0 deletions content/en/docs/18.0/user-guides/configuration-basic/durability_policy.md
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Expand Up @@ -17,8 +17,10 @@ type Durabler interface {

There are 3 implementations supported in this release:
- ***semi_sync*** - This durability policy sets the number of required semi-sync ACKers to 1. It only allows Primary and Replica type servers to acknowledge semi sync. It returns NeutralPromoteRule for replica tablet types, MustNotPromoteRule for everything else.
- ***semi_sync_with_rdonly_ack*** - This durability policy sets the number of required semi-sync ACKers to 1. It allows Primary, Replica and Rdonly type servers to acknowledge semi sync. It returns NeutralPromoteRule for replica tablet types, MustNotPromoteRule for everything else.
- ***none** (default)* - This durability policy does not set any semi-sync configurations. It returns NeutralPromoteRule for Primary and Replica tablet types, MustNotPromoteRule for everything else
- ***cross_cell*** - This durability policy sets the number of required semi-sync ACKers to 1. It only allows Primary and Replica type servers from a different cell than the current primary to acknowledge semi sync. It returns NeutralPromoteRule for replica tablet types, MustNotPromoteRule for everything else.
- ***cross_cell_with_rdonly_ack*** - This durability policy sets the number of required semi-sync ACKers to 1. It only allows Primary, Replica and Rdonly type servers from a different cell than the current primary to acknowledge semi sync. It returns NeutralPromoteRule for replica tablet types, MustNotPromoteRule for everything else.


[EmergencyReparentShard](../../configuration-advanced/reparenting/#emergencyreparentshard-emergency-reparenting) and [PlannedReparentShard](../../configuration-advanced/reparenting/#plannedreparentshard-planned-reparenting) will use the durability rules while choosing the correct candidate for promotion.
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