Class: RedisClient::Cluster::Node::RandomReplica
Constant Summary
Constants inherited
from BaseTopology
BaseTopology::EMPTY_ARRAY, BaseTopology::EMPTY_HASH, BaseTopology::IGNORE_GENERIC_CONFIG_KEYS
Instance Attribute Summary
Attributes inherited from BaseTopology
#clients, #primary_clients
Instance Method Summary
collapse
#any_primary_node_key, #initialize, #process_topology_update!
Instance Method Details
#any_replica_node_key(seed: nil) ⇒ Object
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# File 'lib/redis_client/cluster/node/random_replica.rb', line 28
def any_replica_node_key(seed: nil)
random = seed.nil? ? Random : Random.new(seed)
@replica_node_keys.sample(random: random) || any_primary_node_key(seed: seed)
end
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#clients_for_scanning(seed: nil) ⇒ Object
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# File 'lib/redis_client/cluster/node/random_replica.rb', line 14
def clients_for_scanning(seed: nil)
random = seed.nil? ? Random : Random.new(seed)
keys = @replications.map do |primary_node_key, replica_node_keys|
replica_node_keys.empty? ? primary_node_key : replica_node_keys.sample(random: random)
end
clients.select { |k, _| keys.include?(k) }
end
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#find_node_key_of_replica(primary_node_key, seed: nil) ⇒ Object
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# File 'lib/redis_client/cluster/node/random_replica.rb', line 23
def find_node_key_of_replica(primary_node_key, seed: nil)
random = seed.nil? ? Random : Random.new(seed)
@replications.fetch(primary_node_key, EMPTY_ARRAY).sample(random: random) || primary_node_key
end
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#replica_clients ⇒ Object
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# File 'lib/redis_client/cluster/node/random_replica.rb', line 9
def replica_clients
keys = @replications.values.filter_map(&:sample)
@clients.select { |k, _| keys.include?(k) }
end
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