@Override
public void analyze(DagInfo dagInfo) throws TezException {
// get all attempts in the dag and find the last failed/succeeded attempt.
// ignore killed attempt to handle kills that happen upon dag completion
TaskAttemptInfo lastAttempt = null;
long lastAttemptFinishTime = 0;
for (VertexInfo vertex : dagInfo.getVertices()) {
for (TaskInfo task : vertex.getTasks()) {
for (TaskAttemptInfo attempt : task.getTaskAttempts()) {
attempts.put(attempt.getTaskAttemptId(), attempt);
if (attempt.getStatus().equals(succeededState)
|| attempt.getStatus().equals(failedState)) {
if (lastAttemptFinishTime < attempt.getFinishTime()) {
lastAttempt = attempt;
lastAttemptFinishTime = attempt.getFinishTime();
}
}
}
}
}
if (lastAttempt == null) {
System.out.println("Cannot find last attempt to finish in DAG " + dagInfo.getDagId());
return;
}
createCriticalPath(dagInfo, lastAttempt, lastAttemptFinishTime, attempts);
analyzeCriticalPath(dagInfo);
if (getConf().getBoolean(DRAW_SVG, true)) {
saveCriticalPathAsSVG(dagInfo);
}
}
private void saveCriticalPathAsSVG(DagInfo dagInfo) {
SVGUtils svg = new SVGUtils();
String outputFileName = getOutputDir() + File.separator + dagInfo.getDagId() + ".svg";
System.out.println("Writing output to: " + outputFileName);
svg.saveCriticalPathAsSVG(dagInfo, outputFileName, criticalPath);
}