/// <summary>
/// Not needed, all summaries are already known.
/// </summary>
/// <param name="job">Cluster job.</param>
/// <returns>Throws an exception.</returns>
/// <param name="manager">Communication manager.</param>
public override ClusterJobInformation DiscoverClusterJob(DryadLinqJobSummary job, CommManager manager)
{
ClusterConfiguration actual = (this.Config as CacheClusterConfiguration).ActualConfig(job);
ClusterStatus actualStatus = actual.CreateClusterStatus();
return(actualStatus.DiscoverClusterJob(job, manager));
}
/// <summary>
/// Refresh the job summary status.
/// </summary>
/// <param name="job">Summary to refresh.</param>
/// <param name="manager">Communication manager.</param>
public override void RefreshStatus(DryadLinqJobSummary job, CommManager manager)
{
ClusterConfiguration actual = (this.Config as CacheClusterConfiguration).ActualConfig(job);
ClusterStatus actualStatus = actual.CreateClusterStatus();
actualStatus.RefreshStatus(job, manager);
ClusterJobInformation info = actualStatus.DiscoverClusterJob(job, manager);
if (info == null)
{
job.Status = ClusterJobInformation.ClusterJobStatus.Unknown;
return;
}
job.Status = info.Status;
}
/// <summary>
/// Discover the dryadlinq job associated with a cluster job.
/// </summary>
/// <param name="status">Cluster configuration.</param>
/// <returns>The job, if any</returns>
/// <param name="reporter">Delegate used to report errors.</param>
public DryadLinqJobSummary DiscoverDryadLinqJob(ClusterStatus status, StatusReporter reporter)
{
if (this.IsUnavailable)
{
return(null);
}
if (this.JobSummary != null)
{
return(this.JobSummary);
}
DryadLinqJobSummary j = status.DiscoverDryadLinqJobFromClusterJob(this, reporter);
if (j == null)
{
this.IsUnavailable = true;
}
return(this.JobSummary = j);
}
/// <summary>
/// Cancel a job.
/// </summary>
/// <param name="jobs">Jobs to cancel.</param>
/// <param name="cluster">Cluster where the jobs are running.</param>
/// <returns>True if all cancellations succeed.</returns>
/// <param name="manager">Communicatoni manager.</param>
// ReSharper disable once UnusedParameter.Global
public static bool CancelJobs(IEnumerable<DryadLinqJobSummary> jobs, ClusterStatus cluster, CommManager manager)
{
bool done = true;
foreach (DryadLinqJobSummary job in jobs)
{
manager.Token.ThrowIfCancellationRequested();
if (job.Status != ClusterJobInformation.ClusterJobStatus.Running)
{
manager.Status("Job " + job.Name + " does not appear to be running; will still try to cancel", StatusKind.Error);
}
bool success;
string reason = "";
try
{
success = cluster.CancelJob(job);
}
catch (Exception ex)
{
success = false;
reason = ex.Message;
Trace.TraceInformation(ex.ToString());
}
if (success)
manager.Status("Job " + job.Name + " cancelled", StatusKind.OK);
else
manager.Status("Cancellation of " + job.Name + " failed " + reason, StatusKind.Error);
done &= success;
}
return done;
}
/// <summary>
/// Talk to the web server and build the list of clustr jobs; used it to populate the upper panel.
/// </summary>
/// <param name="virtualCluster">Virtual cluster selected; defined only for Scope clusters.</param>
/// <param name="manager">Communication manager.</param>
/// <param name="status">Cluster to scan.</param>
private static List<ClusterJobInformation> BuildClusterJobList(CommManager manager, ClusterStatus status, string virtualCluster)
{
return status.GetClusterJobList(virtualCluster, manager).ToList();
}
/// <summary>
/// Query the cluster again for the list of jobs.
/// </summary>
/// <returns>True if the cluster could be found.</returns>
private void RefreshClusterJobList()
{
if (this.cluster == null) return;
string clus = this.cluster;
if (!string.IsNullOrEmpty(this.SelectedVirtualCluster))
clus += "/" + this.SelectedVirtualCluster;
this.Status("Querying cluster " + clus, StatusKind.LongOp);
try
{
this.openFromURLToolStripMenuItem.Visible = false;
if (
this.Configuration is CacheClusterConfiguration)
{
this.filteredDataGridView.DataGridView.Columns["VirtualCluster"].Visible = true;
}
else
{
this.filteredDataGridView.DataGridView.Columns["VirtualCluster"].Visible = false;
}
this.clusterStatus = this.Configuration.CreateClusterStatus();
this.toolStripMenuItem_job.Enabled = true;
var item = new BackgroundWorkItem<List<ClusterJobInformation>>(
m => BuildClusterJobList(m, this.clusterStatus, this.SelectedVirtualCluster),
this.JobListRetrieved,
"getJobs");
this.Queue(item);
}
catch (Exception ex)
{
this.Status("Cannot retrieve information from cluster " + cluster + ": " + ex.Message, StatusKind.Error);
Trace.TraceInformation(ex.ToString());
this.comboBox_virtualCluster.Text = "";
}
}