/// <summary>
/// Scan the JM stdout looking for the specified vertex; display the lines in the file view.
/// Run in the background.
/// </summary>
/// <param name="vertex">Vertex to look for.</param>
/// <returns>true if the information was found.</returns>
/// <param name="logViewer">Viewer to use to display the logs.</param>
/// <param name="stdout">Job standard output stream.</param>
private static bool ScanJMStdout(ExecutedVertexInstance vertex, IClusterResidentObject stdout, LogViewer logViewer)
{
if (vertex == null || vertex.IsManager)
return false;
string vertexId = vertex.UniqueID;
string name = string.Format(@"\s{0}.{1}\s", vertex.Number, vertex.Version); // the dot could match a space too.
string regexstring = string.Format(@"vertex\s{0}\s(.*)\sv.{1}\s|", vertex.Number, vertex.Version);
if (vertexId != "")
regexstring += vertexId + "|";
regexstring += name + "|" + vertex.UniqueID;
Regex regex = new Regex(regexstring, RegexOptions.Compiled);
Trace.TraceInformation(regex.ToString());
long length = stdout.Size;
logViewer.Status("Looking for " + vertex.Name, StatusKind.LongOp);
if (length == 0)
{
logViewer.Status("JM stdout is empty.", StatusKind.Error);
logViewer.Done();
return false;
}
ISharedStreamReader sr = stdout.GetStream();
if (sr.Exception != null)
{
logViewer.Status("Error opening JM stdout: " + sr.Exception.Message, StatusKind.Error);
logViewer.Done();
return false;
}
try
{
long read = 0;
long lines = 0;
while (!sr.EndOfStream)
{
string line = sr.ReadLine();
read += line.Length;
if (regex.IsMatch(line))
logViewer.AddLine(stdout.ToString(), lines, line);
lines++;
if (lines % 100 == 0 && length > 0)
{
if (logViewer.Cancelled)
break;
logViewer.UpdateProgress(Math.Min((int)(read * 100 / length), 100)); // the length can grow while the file is being read
}
}
sr.Close();
}
finally
{
logViewer.Done();
}
return true;
}
/// <summary>
/// Find mentions of the current vertex in the JM stdout.
/// </summary>
private void FindJMStdoutMentions()
{
LogViewer lv = new LogViewer(true, "JM on " + this.currentVertex);
lv.Show();
var item = new BackgroundWorkItem<bool>(
m => ScanJMStdout(this.currentVertex, this.Job.ManagerVertex.StdoutFile, lv),
(c, b) => { },
"findStdout");
this.Queue(item);
}
/// <summary>
/// Scan the JM logs looking for the specified vertex; display the lines in the file view.
/// Run in the background.
/// </summary>
/// <param name="vertex">Vertex to look for.</param>
/// <returns>true if the information was found.</returns>
/// <param name="logViewer">Viewer used to display the logs.</param>
private bool ScanJMLogs(ExecutedVertexInstance vertex, LogViewer logViewer)
{
if (vertex == null || this.Job.ManagerVertex == null)
return false;
if (vertex == this.Job.ManagerVertex)
return false;
string vertexId = vertex.UniqueID;
Regex regex = new Regex(vertexId, RegexOptions.Compiled);
Trace.TraceInformation(regex.ToString());
IClusterResidentObject logdir = this.Job.ManagerVertex.LogDirectory;
if (logdir.Exception != null)
{
this.Status(logdir.ToString(), StatusKind.Error);
return false;
}
List<IClusterResidentObject> files = logdir.GetFilesAndFolders(this.Job.ManagerVertex.LogFilesPattern).ToList();
if (files.Count == 0)
{
this.Status("No log files found", StatusKind.Error);
return false;
}
try
{
long totalWork = 0;
foreach (var file in files)
{
if (totalWork >= 0 && file.Size >= 0)
totalWork += file.Size;
}
long done = 0;
foreach (var file in files)
{
ISharedStreamReader sr = file.GetStream();
if (sr.Exception != null)
{
logViewer.Status("Error opening file: " + sr.Exception.Message, StatusKind.Error);
continue;
}
logViewer.Status("Scanning " + file, StatusKind.LongOp);
long lineno = 0;
while (!sr.EndOfStream)
{
if (logViewer.Cancelled)
break;
string line = sr.ReadLine();
done += line.Length;
if (regex.IsMatch(line))
{
logViewer.AddLine(file.Name, lineno, line);
}
lineno++;
logViewer.UpdateProgress((int)(100 * done / totalWork));
}
sr.Close();
if (logViewer.Cancelled)
break;
}
}
finally
{
logViewer.Done();
}
return true;
}
/// <summary>
/// Load the file in the log viewer.
/// </summary>
/// <param name="sender">Unused.</param>
/// <param name="e">Unused.</param>
private void loadFileInViewerToolStripMenuItem_Click(object sender, EventArgs e)
{
LogViewer viewer = new LogViewer();
viewer.Show();
viewer.LoadFile(this.richtextBoxShownFile);
}
