@Override
public Accumulator<Long, Long> clone() {
LongCounter result = new LongCounter();
result.localValue = localValue;
return result;
}
@Override
public String handleRequest(ExecutionJobVertex jobVertex, Map<String, String> params)
throws Exception {
// Build a map that groups tasks by TaskManager
Map<String, List<ExecutionVertex>> taskManagerVertices = new HashMap<>();
for (ExecutionVertex vertex : jobVertex.getTaskVertices()) {
TaskManagerLocation location = vertex.getCurrentAssignedResourceLocation();
String taskManager =
location == null ? "(unassigned)" : location.getHostname() + ":" + location.dataPort();
List<ExecutionVertex> vertices = taskManagerVertices.get(taskManager);
if (vertices == null) {
vertices = new ArrayList<ExecutionVertex>();
taskManagerVertices.put(taskManager, vertices);
}
vertices.add(vertex);
}
// Build JSON response
final long now = System.currentTimeMillis();
StringWriter writer = new StringWriter();
JsonGenerator gen = JsonFactory.jacksonFactory.createGenerator(writer);
gen.writeStartObject();
gen.writeStringField("id", jobVertex.getJobVertexId().toString());
gen.writeStringField("name", jobVertex.getJobVertex().getName());
gen.writeNumberField("now", now);
gen.writeArrayFieldStart("taskmanagers");
for (Entry<String, List<ExecutionVertex>> entry : taskManagerVertices.entrySet()) {
String host = entry.getKey();
List<ExecutionVertex> taskVertices = entry.getValue();
int[] tasksPerState = new int[ExecutionState.values().length];
long startTime = Long.MAX_VALUE;
long endTime = 0;
boolean allFinished = true;
LongCounter tmReadBytes = new LongCounter();
LongCounter tmWriteBytes = new LongCounter();
LongCounter tmReadRecords = new LongCounter();
LongCounter tmWriteRecords = new LongCounter();
for (ExecutionVertex vertex : taskVertices) {
final ExecutionState state = vertex.getExecutionState();
tasksPerState[state.ordinal()]++;
// take the earliest start time
long started = vertex.getStateTimestamp(ExecutionState.DEPLOYING);
if (started > 0) {
startTime = Math.min(startTime, started);
}
allFinished &= state.isTerminal();
endTime = Math.max(endTime, vertex.getStateTimestamp(state));
Map<AccumulatorRegistry.Metric, Accumulator<?, ?>> metrics =
vertex.getCurrentExecutionAttempt().getFlinkAccumulators();
if (metrics != null) {
LongCounter readBytes =
(LongCounter) metrics.get(AccumulatorRegistry.Metric.NUM_BYTES_IN);
tmReadBytes.merge(readBytes);
LongCounter writeBytes =
(LongCounter) metrics.get(AccumulatorRegistry.Metric.NUM_BYTES_OUT);
tmWriteBytes.merge(writeBytes);
LongCounter readRecords =
(LongCounter) metrics.get(AccumulatorRegistry.Metric.NUM_RECORDS_IN);
tmReadRecords.merge(readRecords);
LongCounter writeRecords =
(LongCounter) metrics.get(AccumulatorRegistry.Metric.NUM_RECORDS_OUT);
tmWriteRecords.merge(writeRecords);
}
}
long duration;
if (startTime < Long.MAX_VALUE) {
if (allFinished) {
duration = endTime - startTime;
} else {
endTime = -1L;
duration = now - startTime;
}
} else {
startTime = -1L;
endTime = -1L;
duration = -1L;
}
ExecutionState jobVertexState =
ExecutionJobVertex.getAggregateJobVertexState(tasksPerState, taskVertices.size());
gen.writeStartObject();
gen.writeStringField("host", host);
gen.writeStringField("status", jobVertexState.name());
gen.writeNumberField("start-time", startTime);
gen.writeNumberField("end-time", endTime);
gen.writeNumberField("duration", duration);
gen.writeObjectFieldStart("metrics");
gen.writeNumberField("read-bytes", tmReadBytes.getLocalValuePrimitive());
gen.writeNumberField("write-bytes", tmWriteBytes.getLocalValuePrimitive());
gen.writeNumberField("read-records", tmReadRecords.getLocalValuePrimitive());
gen.writeNumberField("write-records", tmWriteRecords.getLocalValuePrimitive());
gen.writeEndObject();
gen.writeObjectFieldStart("status-counts");
for (ExecutionState state : ExecutionState.values()) {
gen.writeNumberField(state.name(), tasksPerState[state.ordinal()]);
}
gen.writeEndObject();
gen.writeEndObject();
}
gen.writeEndArray();
gen.writeEndObject();
gen.close();
return writer.toString();
}
