This problem may only exist in grpc-go.

I tested with grpc-wallet clients in Java, and it works fine. The landing of the first request is random, and the distribution looks good.

Expected Behavior

4:6 RPC distribution between Wallet-v1 and Wallet-v2 with ./grpcurl.

Actual Behavior

100% of RPCs goes to Wallet-v1.

Steps to Reproduce the Problem

1. Follow https://cloud.google.com/traffic-director/docs/proxyless-configure-advanced-traffic-management to setup cluster;
2. Follow https://cloud.google.com/traffic-director/docs/observability-proxyless#installing_and_using_grpcdebug to see channel statistics;
3. Compare the traffic received between Wallet-v1 and Wallet-v2.

Specifications

• Version: master
• Platform: N/A

C++ examples currently use manual parsing for command-line args. We should instead just use an existing parsing library like gflags instead.

The same as #82 in C++.

Client that does not support affinity will fail the RPC if affinity BS is configured by TD.
Need to make change to the wallet example to not fail non-affinity examples for all client languages.

The same as #82 in C++.

See b/287861720

Apparently there is a build we can manually trigger that compiles everything in this repo. It should be part of the presubmit tests, if possible.

At times we have unwanted patch branches after PR merged such as

• dapengzhang0-patch-1

The author of the PR should be able to delete them. Or even better, force PR to be created in a patch branch in their own fork repo.

Expected Behavior

user@grpc-wallet-client:~/traffic-director-grpc-examples/go/wallet_client$ ./wallet_client price --stats_server="xds:///stats.grpcwallet.io" --watch --user=Bob
2021/08/26 17:57:13 server host: grpcwallet-stats-mig-us-central1-gljr
2021/08/26 17:57:13 grpc-coin price: 9110.
2021/08/26 17:57:14 grpc-coin price: 9018.

Actual Behavior

user@grpc-wallet-client:~/traffic-director-grpc-examples/go/wallet_client$ ./wallet_client price --stats_server="xds:///stats.grpcwallet.io" --watch --user=Bob
021/08/26 17:39:48 xDS credentials in use: false
2021/08/26 17:39:58 Failed to connect to the Wallet server: context deadline exceeded

Steps to Reproduce the Problem

Follow the UG example and run the command.

Specifications

• Version: master branch (It works if the client repo is checkout to v1.0.x branch)