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LeaderElectionCommands

tryaudex_core::ha

Struct LeaderElectionCommands 

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pub struct LeaderElectionCommands;
Expand description

Redis commands for leader election using SET NX EX (atomic lock).

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impl LeaderElectionCommands

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pub fn try_acquire(key: &str, node_id: &str, ttl_secs: u64) -> Vec<String>

Attempt to acquire leadership. Uses SET key value NX EX ttl for atomic acquire.

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pub fn renew_lua() -> &'static str

Renew leadership lease (only if we still hold it). Uses a Lua script for atomic check-and-renew.

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pub fn release_lua() -> &'static str

Release leadership (only if we hold it).

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pub fn get_leader(key: &str) -> Vec<String>

Get current leader.

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