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##############################################################################
# Copyright (c) 2015 EMC and others.
#
# All rights reserved. This program and the accompanying materials
# are made available under the terms of the Apache License, Version 2.0
# which accompanies this distribution, and is available at
# http://www.apache.org/licenses/LICENSE-2.0
##############################################################################
from os import listdir
from os.path import isfile, join
from storperf.carbon.converter import Converter
from storperf.carbon.emitter import CarbonMetricTransmitter
from storperf.db.job_db import JobDB
from storperf.fio.fio_invoker import FIOInvoker
from threading import Thread
import copy
import imp
import logging
import os
class UnknownWorkload(Exception):
pass
class TestExecutor(object):
def __init__(self):
self.logger = logging.getLogger(__name__)
self.workload_modules = []
self.filename = None
self.precondition = True
self.warm = True
self.event_listeners = set()
self.metrics_converter = Converter()
self.metrics_emitter = CarbonMetricTransmitter()
self.prefix = None
self.job_db = JobDB()
self._slaves = []
self._terminated = False
self._workload_executors = []
self._workload_thread = None
@property
def slaves(self):
return self._slaves
@slaves.setter
def slaves(self, slaves):
self.logger.debug("Set slaves to: " + str(slaves))
self._slaves = slaves
def register(self, event_listener):
self.event_listeners.add(event_listener)
def unregister(self, event_listener):
self.event_listeners.discard(event_listener)
def event(self, callback_id, metric):
carbon_metrics = self.metrics_converter.convert_json_to_flat(
metric,
callback_id)
self.metrics_emitter.transmit_metrics(carbon_metrics)
def register_workloads(self, workloads):
if (workloads is None or len(workloads) == 0):
workload_dir = os.path.normpath(
os.path.join(os.path.dirname(__file__), "workloads"))
workload_files = [
f for f in listdir(workload_dir)
if isfile(join(workload_dir, f))]
workloads = []
for filename in workload_files:
mname, _ = os.path.splitext(filename)
if (not mname.startswith('_')):
workloads.append(mname)
else:
workloads = workloads.split(',')
if (self.warm is True):
workloads.insert(0, "_warm_up")
if (self.precondition is True):
workloads.insert(0, "_ssd_preconditioning")
for workload in workloads:
try:
workload_module = self.load_from_file("workloads/" +
workload + ".py")
self.logger.debug("Found: " + str(workload_module))
if(workload_module is None):
raise UnknownWorkload(
"ERROR: Unknown workload: " + workload)
self.workload_modules.append(workload_module)
except ImportError, err:
raise UnknownWorkload("ERROR: " + str(err))
def load_from_file(self, uri):
uri = os.path.normpath(os.path.join(os.path.dirname(__file__), uri))
path, fname = os.path.split(uri)
mname, _ = os.path.splitext(fname)
no_ext = os.path.join(path, mname)
self.logger.debug("Looking for: " + no_ext)
if os.path.exists(no_ext + '.pyc'):
self.logger.debug("Loading compiled: " + mname + " from " + no_ext)
return imp.load_compiled(mname, no_ext + '.pyc')
if os.path.exists(no_ext + '.py'):
self.logger.debug("Compiling: " + mname + " from " + no_ext)
return imp.load_source(mname, no_ext + '.py')
return None
def execute(self):
self.job_db.create_job_id()
self._workload_thread = Thread(target=self.execute_workloads, args=())
self._workload_thread.start()
return self.job_db.job_id
def terminate(self):
self._terminated = True
for workload in self._workload_executors:
workload.terminate()
def execute_workloads(self):
self._terminated = False
for workload_module in self.workload_modules:
workload_name = getattr(workload_module, "__name__")
constructorMethod = getattr(workload_module, workload_name)
workload = constructorMethod()
if (self.filename is not None):
workload.filename = self.filename
if (workload_name.startswith("_")):
iodepths = [32, ]
blocksizes = [8192, ]
else:
iodepths = [128, 16, 1]
blocksizes = [8192, 4096, 512]
workload.id = self.job_db.job_id
for blocksize in blocksizes:
for iodepth in iodepths:
if self._terminated:
return
workload.options['iodepth'] = str(iodepth)
workload.options['bs'] = str(blocksize)
slave_threads = []
for slave in self.slaves:
slave_workload = copy.copy(workload)
slave_workload.remote_host = slave
self._workload_executors.append(slave_workload)
t = Thread(target=self.execute_on_node,
args=(slave_workload,))
t.daemon = False
t.start()
slave_threads.append(t)
for slave_thread in slave_threads:
slave_thread.join()
self._workload_executors = []
def execute_on_node(self, workload):
invoker = FIOInvoker()
invoker.register(self.event)
workload.invoker = invoker
self.logger.info("Starting " + workload.fullname)
self.job_db.start_workload(workload)
workload.execute()
self.job_db.end_workload(workload)
self.logger.info("Ended " + workload.fullname)
def fetch_workloads(self, job, workload_name=""):
self.job_db.job_id = job
return self.job_db.fetch_workloads(workload_name)
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