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Improve logs in the GCP proxy

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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.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=208649916
This commit is contained in:
jianglai 2018-08-14 08:22:31 -07:00
parent b552c1d115
commit 0e64015cdf
10 changed files with 154 additions and 95 deletions
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10
javatests/google/registry/proxy/ProxyModuleTest.java
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@ -18,7 +18,6 @@ import static com.google.common.truth.Truth.assertThat;
import static google.registry.proxy.ProxyConfig.Environment.LOCAL;
import static google.registry.proxy.ProxyConfig.getProxyConfig;
import static google.registry.testing.JUnitBackports.assertThrows;
import static org.junit.Assert.fail;
import com.beust.jcommander.ParameterException;
import google.registry.proxy.ProxyConfig.Environment;
@ -66,12 +65,9 @@ public class ProxyModuleTest {
@Test
public void testFailure_parseArgs_wrongArguments() {
String[] args = {"--wrong_flag", "some_value"};
try {
proxyModule.parse(args);
fail("Expected ParameterException.");
} catch (ParameterException e) {
assertThat(e).hasMessageThat().contains("--wrong_flag");
}
ParameterException thrown =
assertThrows(ParameterException.class, () -> proxyModule.parse(args));
assertThat(thrown).hasMessageThat().contains("--wrong_flag");
}
@Test