private async Task <ClusterVersion?> GetVersionAsync(IEnumerable <Uri> servers, HttpClient httpClient)
{
if (servers == null)
{
throw new ArgumentNullException(nameof(servers));
}
foreach (var server in servers.ToList().Shuffle())
{
try
{
_logger.LogTrace("Getting cluster version from {server}", server);
var config = await DownloadConfigAsync(httpClient, server).ConfigureAwait(false);
if (config != null && config.Nodes != null)
{
ClusterVersion?compatibilityVersion = null;
foreach (var node in config.Nodes)
{
if (ClusterVersion.TryParse(node.Version, out ClusterVersion version) &&
(compatibilityVersion == null || version < compatibilityVersion))
{
compatibilityVersion = version;
}
}
if (compatibilityVersion != null)
{
return(compatibilityVersion);
}
}
}
catch (Exception e)
{
_logger.LogError(e, "Unable to load config from {server}", server);
}
}
// No version information could be loaded from any node
_logger.LogDebug("Unable to get cluster version");
return(null);
}
private async Task <ClusterVersion?> GetVersionAsync(IEnumerable <Uri> servers, CouchbaseHttpClient httpClient)
{
if (servers == null)
{
throw new ArgumentNullException("servers");
}
foreach (var server in servers.ToList().Shuffle())
{
try
{
_log.Trace("Getting cluster version from {0}", server);
var config = await DownloadConfigAsync(httpClient, server).ContinueOnAnyContext();
if (config != null && config.Nodes != null)
{
ClusterVersion?compatabilityVersion = null;
foreach (var node in config.Nodes)
{
if (ClusterVersion.TryParse(node.Version, out ClusterVersion version) &&
(compatabilityVersion == null || version < compatabilityVersion))
{
compatabilityVersion = version;
}
}
if (compatabilityVersion != null)
{
return(compatabilityVersion);
}
}
}
catch (Exception e)
{
_log.Error(string.Format("Unable to load config from {0}", server), e);
}
}
// No version information could be loaded from any node
_log.Debug("Unable to get cluster version");
return(null);
}