jianglai 0e64015cdf Improve logs in the GCP proxy ... Tweaked a few logging levels to not spam error level logs. Also make it easy to debug issues in case relay retry fails. [1] Put non-fatal exceptions that should be logged at warning in their explicit sets. Also always use the root cause to determine if an exception is non-fatal, because sometimes the actual causes are wrapped inside other exceptions. [2] Record the cause of a relay failure, and record if a relay retry is successful. This way we can look at the log and figure out if a relay is eventually successful. [3] Add a log when the frontend connection from the client is terminated. [4] Alway close the relay channel when a relay has failed, which, depend on if the channel is frontend or backend, will reconnect and trigger a retry. [5] Lastly changed failure test to use assertThrows instead of fail. ------------- Created by MOE: https://github.com/google/moe MOE_MIGRATED_REVID=208649916		2018-08-20 13:58:30 -04:00
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com/google/testing/builddefs	Format .bzl files with buildifier	2018-07-14 01:37:03 -04:00
google/registry	Improve logs in the GCP proxy	2018-08-20 13:58:30 -04:00