private async Task <T> GenerateUrlAndExecuteRequestAsync <T>(RestRequest request,
CancellationToken cancellationToken)
{
IEnumerable <Uri> yarnRmUris = await _yarnRmUrlProviderUri.GetUrlAsync();
var exceptions = new List <Exception>();
foreach (var yarnRmUri in yarnRmUris)
{
try
{
return
(await
_restRequestExecutor.ExecuteAsync <T>(request, yarnRmUri, cancellationToken));
}
catch (Exception e)
{
exceptions.Add(e);
Logger.Log(Level.Verbose,
string.Format(CultureInfo.CurrentCulture, "Possibly transient error in rest call {0}", e.Message));
}
}
throw new AggregateException("Failed Rest Request", exceptions);
}
public void UrlProviderReadsEnvVarConfiguredConfigFileAndParsesCorrectHttpUrl()
{
string tempFile = Path.GetTempFileName();
string tempDir = Path.GetDirectoryName(tempFile);
string yarnConfigFile = Path.Combine(tempDir, YarnConfigFileName);
using (new YarnConfigurationUrlProviderTests.TempFileWriter(yarnConfigFile, YarnConfigurationXmlContent))
using (new YarnConfigurationUrlProviderTests.TemporaryOverrideEnvironmentVariable(HadoopConfDirEnvVariable, tempDir))
{
IUrlProvider urlProvider = GetYarnConfigurationUrlProvider();
var url = urlProvider.GetUrlAsync().GetAwaiter().GetResult();
int i = 0;
foreach (var u in url)
{
i++;
Assert.Equal("http", u.Scheme);
if (i == 1)
{
Assert.Equal(AnyHttpAddressConfig.Split(':')[0], u.Host);
Assert.Equal(AnyHttpAddressConfig.Split(':')[1],
u.Port.ToString(CultureInfo.InvariantCulture));
}
else
{
Assert.Equal(AnyHttpAddressConfigUpdated.Split(':')[0], u.Host);
Assert.Equal(AnyHttpAddressConfigUpdated.Split(':')[1],
u.Port.ToString(CultureInfo.InvariantCulture));
}
}
}
}