125 lines
4.3 KiB
Python
Executable file
125 lines
4.3 KiB
Python
Executable file
#!/usr/bin/env python3
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# coding: utf-8
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# # Temporal impact: machine time waste
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# This analysis is meant to analyse the time spend by instance events doing submission, queueing, and execution. This
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# preliminary script sums the total time spent by instance executions to transition from each event type to another.
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# Additionaly, time sums are partitioned by the last termination state of the instance they belong (i.e. the last
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# 4<=x<=8 event type for that instance).
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# Please note that events with either missing time, type, instance_index or collection_id are ignored. Total number of
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# instance events in the trace and filtered number of events are saved in the output.
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# ## Data representation
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# Total and filtered totals mentioned before are under "total" and "filtered" attributes in the root of the generated
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# JSON object. The "data" atrribute is a list of pairs of final instance termination states and the corresponding list
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# of time totals per each transition. Each transition total is represented in the form of "x-y" where x is the last
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# event type prior to the transition and "y" is the new event detected. Times are calculated by summing all event times
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# "y" subtracting the nearest event of type "x" for each instance. If an event "x" is repeated multiple times
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# immediately after an event of the same type, only the first event in chronological order is considered. If however
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# after multiple repetitions of the event "x" the trace for that instance terminates, an "x-x" time sum is registered by
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# computing the difference between the last and the first event of "x" type. Times are represented in microseconds.
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import json
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import pandas
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from IPython import display
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import findspark
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findspark.init()
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import pyspark
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import pyspark.sql
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import sys
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from pyspark.sql.functions import lit
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from pyspark.sql.types import ByteType
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if len(sys.argv) != 2 or len(sys.argv[1]) != 1:
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print("usage: " + sys.argv[0] + " {cluster}", file=sys.stderr)
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sys.exit(1)
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cluster=sys.argv[1]
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spark = pyspark.sql.SparkSession.builder \
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.appName("machine_time_waste") \
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.config("spark.local.dir", "/run/tmpfiles.d/spark") \
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.config("spark.driver.memory", "124g") \
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.getOrCreate()
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sc = spark.sparkContext
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#df = spark.read.json("/home/claudio/google_2019/instance_events/" + cluster + "/" + cluster + "_test.json") \
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df = spark.read.json("/home/claudio/google_2019/instance_events/" + cluster + "/" + cluster + "_instance_events*.json.gz")
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try:
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df["collection_type"] = df["collection_type"].cast(ByteType())
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except:
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df = df.withColumn("collection_type", lit(None).cast(ByteType()))
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df.printSchema()
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df.show()
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total = sc.accumulator(0)
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filtered = sc.accumulator(1)
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def for_each_task(ts):
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ts = sorted(ts, key=lambda x: x["time"])
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last_term = None
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prev = None
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tr = {}
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for i,t in enumerate(ts):
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if prev is not None and t["type"] == prev["type"]: # remove useless transitions
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if i == len(ts) - 1: # if last
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tr[str(prev["type"]) + "-" + str(t["type"])] = t["time"] - prev["time"] # keep "loops" if last
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else:
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continue
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if t["type"] >= 4 and t["type"] <= 8:
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last_term = t["type"]
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if prev is not None:
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tr[str(prev["type"]) + "-" + str(t["type"])] = t["time"] - prev["time"]
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prev = t
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return {"last_term": last_term, 'tr': tr}
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def sum_values(ds):
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dsum = {}
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for dt in ds:
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d = dt["tr"]
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for key in d:
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if key not in dsum:
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dsum[key] = d[key]
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else:
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dsum[key] += d[key]
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return dsum
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def count_total(x):
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total.add(1)
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return x
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def cleanup(x):
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filtered.add(1)
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return {
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"time": int(x.time),
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"type": 0 if x.type is None else int(x.type),
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"id": x.collection_id + "-" + x.instance_index,
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}
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r2 = df.rdd \
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.filter(lambda x: x.collection_type is None or x.collection_type == 0) \
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.map(count_total) \
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.filter(lambda x: x.type is not None and x.time is not None
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and x.instance_index is not None and x.collection_id is not None) \
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.map(cleanup) \
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.groupBy(lambda x: x["id"]) \
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.mapValues(for_each_task) \
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.map(lambda x: x[1]) \
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.groupBy(lambda x: x["last_term"]) \
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.mapValues(sum_values) \
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.collect()
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with open(cluster + "_state_changes_jobs.json", "w") as out:
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json.dump({"filtered": filtered.value, "total": total.value, "data": r2}, out)
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# vim: set ts=2 sw=2 et tw=120:
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