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flamenco-manager/brender/worker/controllers.py
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controllers.py
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import socket
import urllib
import time
import sys
import subprocess
import platform
import psutil
import flask
import os
import select
import gocept.cache.method
from threading import Thread
from flask import Flask, redirect, url_for, request, jsonify
from uuid import getnode as get_mac_address
MAC_ADDRESS = get_mac_address() # the MAC address of the worker
HOSTNAME = socket.gethostname() # the hostname of the worker
SYSTEM = platform.system() + ' ' + platform.release()
app = Flask(__name__)
BRENDER_SERVER = ''
def http_request(command, values):
params = urllib.urlencode(values)
try:
urllib.urlopen('http://' + BRENDER_SERVER + '/' + command, params)
#print(f.read())
except IOError:
print("[Warning] Could not connect to server to register")
# this is going to be an HTTP request to the server with all the info
# for registering the render node
def register_worker():
import httplib
while True:
try:
connection = httplib.HTTPConnection('127.0.0.1', app.config['PORT'])
connection.request("GET", "/info")
break
except socket.error:
pass
time.sleep(0.1)
http_request('connect', {'mac_address': MAC_ADDRESS,
'port': app.config['PORT'],
'hostname': HOSTNAME,
'system': SYSTEM})
def _checkProcessOutput(process):
ready = select.select([process.stdout.fileno(),
process.stderr.fileno()],
[], [])
full_buffer = ''
for fd in ready[0]:
while True:
buffer = os.read(fd, 1024)
if not buffer:
break
full_buffer += buffer
return full_buffer
def _interactiveReadProcess(process, job_id):
full_buffer = ''
tmp_buffer = ''
while True:
tmp_buffer += _checkProcessOutput(process)
if tmp_buffer:
# http_request("update_blender_output_from_i_dont_know", tmp_buffer)
pass
full_buffer += tmp_buffer
if process.poll() is not None:
break
# It might be some data hanging around in the buffers after
# the process finished
full_buffer += _checkProcessOutput(process)
return (process.returncode, full_buffer)
@app.route('/')
def index():
return redirect(url_for('info'))
@app.route('/info')
def info():
return jsonify(mac_address=MAC_ADDRESS,
hostname=HOSTNAME,
system=SYSTEM)
def run_blender_in_thread(options):
"""We build the command to run blender in a thread
"""
render_command = [
options['blender_path'],
'--background',
options['file_path'],
'--python',
options['render_settings'],
'--frame-start' ,
options['start_frame'],
'--frame-end',
options['end_frame'],
'--render-anim',
'--enable-autoexec'
]
print("[Info] Running %s" % render_command)
process = subprocess.Popen(render_command,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE)
#flask.g.blender_process = process
(retcode, full_output) = _interactiveReadProcess(process, options["job_id"])
#flask.g.blender_process = None
print(full_output)
script_dir = os.path.dirname(__file__)
rel_path = 'render_log_' + HOSTNAME + '.log'
abs_file_path = os.path.join(script_dir, rel_path)
with open(abs_file_path, 'w') as f:
f.write(full_output)
http_request('jobs/update', {'id': options['job_id'],
'status': 'finished'})
@app.route('/execute_job', methods=['POST'])
def execute_job():
options = {
'job_id': request.form['job_id'],
'file_path': request.form['file_path'],
'blender_path': request.form['blender_path'],
'start_frame': request.form['start'],
'end_frame': request.form['end'],
'render_settings': request.form['render_settings']
}
render_thread = Thread(target=run_blender_in_thread, args=(options,))
render_thread.start()
return jsonify(status='worker is running the command')
@app.route('/update', methods=['POST'])
def update():
print('updating')
blender_process = flask.g.get("blender_process")
if blender_process:
blender_process.kill()
return('done')
def online_stats(system_stat):
if 'blender_cpu' in [system_stat]:
try:
find_blender_process = [x for x in psutil.process_iter() if x.name == 'blender']
cpu = []
if find_blender_process:
for process in find_blender_process:
cpu.append(process.get_cpu_percent())
return round(sum(cpu), 2)
else:
return int(0)
except psutil._error.NoSuchProcess:
return int(0)
if 'blender_mem' in [system_stat]:
try:
find_blender_process = [x for x in psutil.get_process_list() if x.name == 'blender']
mem = []
if find_blender_process:
for process in find_blender_process:
mem.append(process.get_memory_percent())
return round(sum(mem), 2)
else:
return int(0)
except psutil._error.NoSuchProcess:
return int(0)
if 'system_cpu' in [system_stat]:
try:
cputimes = psutil.cpu_percent(interval=1)
return cputimes
except:
return int(0)
if 'system_mem' in [system_stat]:
mem_percent = psutil.phymem_usage().percent
return mem_percent
if 'system_disk' in [system_stat]:
disk_percent = psutil.disk_usage('/').percent
return disk_percent
def offline_stats(offline_stat):
if 'number_cpu' in [offline_stat]:
return psutil.NUM_CPUS
if 'arch' in [offline_stat]:
return platform.machine()
@gocept.cache.method.Memoize(5)
def get_system_load_frequent():
load = os.getloadavg()
return ({
"load_average": ({
"1min": round(load[0], 2),
"5min": round(load[1], 2),
"15min": round(load[2], 2)
}),
"worker_cpu_percent": online_stats('system_cpu'),
'worker_blender_cpu_usage': online_stats('blender_cpu')
})
@gocept.cache.method.Memoize(120)
def get_system_load_less_frequent():
return ({
"worker_num_cpus": offline_stats('number_cpu'),
"worker_architecture": offline_stats('arch'),
"worker_mem_percent": online_stats('system_mem'),
"worker_disk_percent": online_stats('system_disk'),
"worker_blender_mem_usage": online_stats('blender_mem')
})
@app.route('/run_info')
def run_info():
print('[Debug] get_system_load for %s') % HOSTNAME
return jsonify(mac_address=MAC_ADDRESS,
hostname=HOSTNAME,
system=SYSTEM,
update_frequent=get_system_load_frequent(),
update_less_frequent=get_system_load_less_frequent()
)