/// <summary>
/// Shows the mode where the user is only viewing an existing streak type
/// </summary>
private void ShowViewMode()
{
if (!IsViewMode())
{
return;
}
var canEdit = CanEdit();
btnEdit.Visible = canEdit;
pnlEditDetails.Visible = false;
pnlViewDetails.Visible = true;
HideSecondaryBlocks(false);
// Description
var node = WebFarmNode;
var descriptionList = new DescriptionList();
descriptionList.Add("Last Seen", node.LastSeen);
descriptionList.Add("Is Leader", node.IsLeader.ToYesNo());
descriptionList.Add("Job Runner", node.IsJobRunner.ToYesNo());
descriptionList.Add("Polling Interval", string.Format("{0:N1}s", node.PollingIntervalSeconds));
lDescription.Text = descriptionList.Html;
// Show chart for responsive nodes
if (node.IsActive && !node.IsUnresponsive && node.Metrics.Count() > 1)
{
var samples = WebFarmNodeMetricService.CalculateMetricSamples(node.Metrics, _cpuMetricSampleCount, ChartMinDate, _chartMaxDate);
var html = GetChartHtml(samples);
lChart.Text = html;
}
}
/// <summary>
/// Adds the metrics.
/// </summary>
/// <param name="rockContext">The rock context.</param>
private static void AddMetrics(RockContext rockContext)
{
var webFarmNodeMetricService = new WebFarmNodeMetricService(rockContext);
if (_cpuCounter != null)
{
var cpuPercent = Convert.ToDecimal(_cpuCounter.NextValue());
webFarmNodeMetricService.Add(
new WebFarmNodeMetric
{
WebFarmNodeId = _nodeId,
MetricType = WebFarmNodeMetric.TypeOfMetric.CpuUsagePercent,
MetricValue = cpuPercent
}
);
Debug($"Added metric: CPU {cpuPercent:N0}%");
}
if (_ramCounter != null)
{
var ramAvailable = Convert.ToDecimal(_ramCounter.NextValue());
var ramUsage = TotalRamMb - ramAvailable;
webFarmNodeMetricService.Add(
new WebFarmNodeMetric
{
WebFarmNodeId = _nodeId,
MetricType = WebFarmNodeMetric.TypeOfMetric.MemoryUsageMegabytes,
MetricValue = ramUsage
}
);
Debug($"Added metric: RAM {ramUsage:N0}MB");
}
}
/// <summary>
/// Handles the ItemDataBound event of the rNodes control.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="e">The <see cref="System.Web.UI.WebControls.RepeaterItemEventArgs"/> instance containing the event data.</param>
protected void rNodes_ItemDataBound(object sender, System.Web.UI.WebControls.RepeaterItemEventArgs e)
{
var viewModel = e.Item.DataItem as WebFarmNodeService.NodeViewModel;
if (viewModel == null)
{
return;
}
var spanLastSeen = e.Item.FindControl("spanLastSeen");
var lChart = e.Item.FindControl("lChart") as Literal;
var lLastSeen = e.Item.FindControl("lLastSeen") as Literal;
spanLastSeen.Visible = viewModel.IsUnresponsive;
lLastSeen.Text = WebFarmNodeService.GetHumanReadablePastTimeDifference(viewModel.LastSeen);
// Show chart for responsive nodes
if (viewModel.IsActive && !viewModel.IsUnresponsive && viewModel.Metrics.Count() > 1)
{
var samples = WebFarmNodeMetricService.CalculateMetricSamples(viewModel.Metrics, _cpuMetricSampleCount, ChartMinDate, _chartMaxDate);
var html = GetChartHtml(samples);
lChart.Text = html;
}
}
/// <summary>
/// Shows the mode where the user is only viewing an existing streak type
/// </summary>
private void ShowViewMode()
{
if (!IsViewMode())
{
return;
}
var canEdit = CanEdit();
btnEdit.Visible = canEdit;
pnlEditDetails.Visible = false;
pnlViewDetails.Visible = true;
HideSecondaryBlocks(false);
// Load values from system settings
var minPolling = RockWebFarm.GetLowerPollingLimitSeconds();
var maxPolling = RockWebFarm.GetUpperPollingLimitSeconds();
var minDifference = RockWebFarm.GetMinimumPollingDifferenceSeconds();
var pollingWait = RockWebFarm.GetMaxPollingWaitSeconds();
var maskedKey = SystemSettings.GetValue(SystemSetting.WEBFARM_KEY).Masked();
if (maskedKey.IsNullOrWhiteSpace())
{
maskedKey = "None";
}
// Build the description list with the values
var descriptionList = new DescriptionList();
descriptionList.Add("Key", string.Format("{0}", maskedKey));
descriptionList.Add("Min Polling Limit", string.Format("{0} seconds", minPolling));
descriptionList.Add("Max Polling Limit", string.Format("{0} seconds", maxPolling));
descriptionList.Add("Min Polling Difference", string.Format("{0} seconds", minDifference));
descriptionList.Add("Max Polling Wait", string.Format("{0} seconds", pollingWait));
var unresponsiveMinutes = 10;
var unresponsiveDateTime = RockDateTime.Now.AddMinutes(0 - unresponsiveMinutes);
// Bind the grid data view models
using (var rockContext = new RockContext())
{
var webFarmNodeService = new WebFarmNodeService(rockContext);
var webFarmNodeMetricService = new WebFarmNodeMetricService(rockContext);
var viewModels = webFarmNodeService.Queryable()
.AsNoTracking()
.Select(wfn => new WebFarmNodeService.NodeViewModel
{
PollingIntervalSeconds = wfn.CurrentLeadershipPollingIntervalSeconds,
IsJobRunner = wfn.IsCurrentJobRunner,
IsActive = wfn.IsActive,
IsUnresponsive = wfn.IsActive && !wfn.StoppedDateTime.HasValue && wfn.LastSeenDateTime < unresponsiveDateTime,
IsLeader = wfn.IsLeader,
NodeName = wfn.NodeName,
LastSeen = wfn.LastSeenDateTime,
Id = wfn.Id,
Metrics = wfn.WebFarmNodeMetrics
.Where(wfnm =>
wfnm.MetricType == WebFarmNodeMetric.TypeOfMetric.CpuUsagePercent &&
wfnm.MetricValueDateTime >= ChartMinDate &&
wfnm.MetricValueDateTime <= _chartMaxDate)
.Select(wfnm => new WebFarmNodeMetricService.MetricViewModel
{
MetricValueDateTime = wfnm.MetricValueDateTime,
MetricValue = wfnm.MetricValue
})
.ToList()
})
.ToList();
rNodes.DataSource = viewModels.OrderBy(n => n.NodeName);
rNodes.DataBind();
}
lDescription.Text = descriptionList.Html;
}
