totalTasks = (int) dagGrp.findCounter("TOTAL_LAUNCHED_TASKS").getValue();
CounterGroup fsGrp = tezCounters.getGroup(FS_COUNTER_GROUP);
fileBytesRead = fsGrp.findCounter("FILE_BYTES_READ").getValue();
fileBytesWritten = fsGrp.findCounter("FILE_BYTES_WRITTEN").getValue();
hdfsBytesRead = fsGrp.findCounter("HDFS_BYTES_READ").getValue();
hdfsBytesWritten = fsGrp.findCounter("HDFS_BYTES_WRITTEN").getValue();
for (Entry<String, TezVertexStats> entry : tezVertexStatsMap.entrySet()) {
Vertex v = dag.getVertex(entry.getKey());
if (v != null && tezVertexStatsMap.containsKey(v.getName())) {