//https://docs.microsoft.com/en-us/aspnet/core/fundamentals/http-requests?view=aspnetcore-3.1
public HttpStrategyClient(IOptions <Config> config, HttpClient httpClient, IHealthResponse healthResponse)
{
httpClient.BaseAddress = new Uri($"{config.Value.StrategyUrl}");
httpClient.DefaultRequestHeaders.Add("Accept", "application/json");
_client = httpClient;
_healthResponse = healthResponse;
}
private void EnsureExpectedNumberOfNodes(IHealthResponse response)
{
if (_logstashConfiguration.NodeCount == response.NumberOfNodes)
{
return;
}
var message = string.Format("Expected {0} Elasticsearch node(s), saw {1}.", _logstashConfiguration.NodeCount, response.NumberOfNodes);
throw new Exception(message);
}
private void EnsureNoTimeout(IHealthResponse health)
{
if (!health.TimedOut)
{
return;
}
var message = string.Format("Logstash elastic cluster health check timed out ({0}).", _logstashConfiguration.Timeout);
throw new Exception(message);
}
private void EnsureNoTimeout(IHealthResponse health)
{
if (!health.TimedOut)
{
return;
}
var message = string.Format(
"Elasticsearch cluster health check timed out ({0}).", Timeout);
throw new Exception(message);
}
private void EnsureClusterIsHealthy(IHealthResponse health)
{
if (health.Status == "green")
{
return;
}
//Clusters with only one node allways have status of "yellow"
if ((health.Status == "yellow" && ExpectedNodeCount > 1) || health.Status == "red")
{
var statusMessage = string.Format("Cluster is unhealthy: \"{0}\". Advise checking cluster if this message is logged again.", health.Status);
_logger.Warn(statusMessage);
}
if (health.NumberOfNodes != ExpectedNodeCount)
{
var message = string.Format("Cluster should contain {0} nodes, but only has {1}.", ExpectedNodeCount, health.NumberOfNodes);
_logger.Warn(message);
}
}
