pulsar::AutoClusterFailover::Builder Class Reference

#include <AutoClusterFailover.h>

Public Member Functions
	Builder (ServiceInfo primary, std::vector< ServiceInfo > secondary)
Builder &	withCheckInterval (std::chrono::milliseconds interval)
Builder &	withFailoverThreshold (uint32_t threshold)
Builder &	withSwitchBackThreshold (uint32_t threshold)
AutoClusterFailover	build ()

Detailed Description

Builder helps create an AutoClusterFailover configuration.

Example: ServiceInfo primary{...}; std::vector<ServiceInfo> secondaries{...}; AutoClusterFailover provider = AutoClusterFailover::Builder(primary, secondaries) .withCheckInterval(std::chrono::seconds(5)) .withFailoverThreshold(3) .withSwitchBackThreshold(3) .build();

Notes:

• primary: the preferred cluster to use when available.
• secondary: ordered list of fallback clusters.
• checkInterval: frequency of health probes.
• failoverThreshold: the number of consecutive failed probes required before switching away from the current cluster.
• switchBackThreshold: the number of consecutive successful probes to the primary required before switching back from a secondary while that secondary remains available. If the active secondary becomes unavailable and the primary is available, the implementation may switch back to the primary immediately, regardless of this threshold.

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The documentation for this class was generated from the following file:

• include/pulsar/AutoClusterFailover.h