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@@ -338,9 +338,9 @@ def test_change_backend_service(gcp, original_backend_service, instance_group,
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_WAIT_FOR_STATS_SEC)
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try:
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patch_url_map_backend_service(gcp, alternate_backend_service)
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- stats = get_client_stats(_NUM_TEST_RPCS, _WAIT_FOR_STATS_SEC)
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- if stats.num_failures > 0:
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- raise Exception('Unexpected failure: %s', stats)
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+ # TODO(ericgribkoff) Verify no RPCs fail during backend switch.
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+ # Currently TD may briefly send an update with no localities if adding
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+ # the MIG to the backend service above races with the URL map patch.
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wait_until_all_rpcs_go_to_given_backends(alternate_backend_instances,
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_WAIT_FOR_URL_MAP_PATCH_SEC)
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finally:
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Eric Gribkoff