[ate]: Enable client-side load balancing and update docs #238
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This change introduces gRPC client-side load balancing to the ATE client library and documents its usage. ATE Client Library: - The client options now accept a `pa_target` in gRPC name-syntax format (e.g., "ipv4:host1:port,host2:port") to enable connecting to multiple server instances. - A `load_balancing_policy` option has been added to allow callers to select policies like "round_robin". - The client creation logic was updated to use `grpc::CreateCustomChannel` to apply the specified load balancing configuration. - Test programs and integration test scripts were updated to use the new `--pa_target` and `--load_balancing_policy` flags. Documentation (`docs/ate.md`): - Added a section on "Client-Side Load Balancing and Failover," explaining how to configure it and what to expect during partial and total server outages. - Added a "Client Lifecycle and Resource Management" section outlining best practices for creating and destroying the client instance. - Added a "Monitoring and Debugging" section that instructs users on how to enable gRPC tracing via environment variables to debug connection health and load balancer behavior. Signed-off-by: Miguel Osorio <[email protected]>
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timothytrippel
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Jun 22, 2025
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This change introduces gRPC client-side load balancing to the ATE client library and documents its usage.
ATE Client Library:
pa_targetin gRPC name-syntax format (e.g., "ipv4:host1:port,host2:port") to enable connecting to multiple server instances.load_balancing_policyoption has been added to allow callers to select policies like "round_robin".grpc::CreateCustomChannelto apply the specified load balancing configuration.--pa_targetand--load_balancing_policyflags.Documentation (
docs/ate.md):