496 lines
21 KiB
Python
496 lines
21 KiB
Python
import time
|
|
import logging
|
|
import random
|
|
import collections
|
|
|
|
import gevent
|
|
|
|
from Worker import Worker
|
|
from Config import config
|
|
from util import helper
|
|
from Plugin import PluginManager
|
|
import util
|
|
|
|
|
|
@PluginManager.acceptPlugins
|
|
class WorkerManager(object):
|
|
|
|
def __init__(self, site):
|
|
self.site = site
|
|
self.workers = {} # Key: ip:port, Value: Worker.Worker
|
|
self.tasks = []
|
|
# {"evt": evt, "workers_num": 0, "site": self.site, "inner_path": inner_path, "done": False, "optional_hash_id": None,
|
|
# "time_started": None, "time_added": time.time(), "peers": peers, "priority": 0, "failed": peer_ids}
|
|
self.started_task_num = 0 # Last added task num
|
|
self.asked_peers = []
|
|
self.running = True
|
|
self.time_task_added = 0
|
|
self.log = logging.getLogger("WorkerManager:%s" % self.site.address_short)
|
|
self.process_taskchecker = gevent.spawn(self.checkTasks)
|
|
|
|
def __str__(self):
|
|
return "WorkerManager %s" % self.site.address_short
|
|
|
|
def __repr__(self):
|
|
return "<%s>" % self.__str__()
|
|
|
|
# Check expired tasks
|
|
def checkTasks(self):
|
|
while self.running:
|
|
tasks = task = worker = workers = None # Cleanup local variables
|
|
time.sleep(15) # Check every 15 sec
|
|
|
|
# Clean up workers
|
|
for worker in self.workers.values():
|
|
if worker.task and worker.task["done"]:
|
|
worker.skip() # Stop workers with task done
|
|
|
|
if not self.tasks:
|
|
continue
|
|
|
|
tasks = self.tasks[:] # Copy it so removing elements wont cause any problem
|
|
for task in tasks:
|
|
size_extra_time = task["size"] / (1024 * 100) # 1 second for every 100k
|
|
if task["time_started"] and time.time() >= task["time_started"] + 60 + size_extra_time:
|
|
self.log.debug("Timeout, Skipping: %s" % task) # Task taking too long time, skip it
|
|
# Skip to next file workers
|
|
workers = self.findWorkers(task)
|
|
if workers:
|
|
for worker in workers:
|
|
worker.skip()
|
|
else:
|
|
self.failTask(task)
|
|
elif time.time() >= task["time_added"] + 60 + size_extra_time and not self.workers: # No workers left
|
|
self.log.debug("Timeout, Cleanup task: %s" % task)
|
|
# Remove task
|
|
self.failTask(task)
|
|
|
|
elif (task["time_started"] and time.time() >= task["time_started"] + 15) or not self.workers:
|
|
# Find more workers: Task started more than 15 sec ago or no workers
|
|
workers = self.findWorkers(task)
|
|
self.log.debug(
|
|
"Slow task: %s 15+%ss, (workers: %s, optional_hash_id: %s, peers: %s, failed: %s, asked: %s)" %
|
|
(
|
|
task["inner_path"], size_extra_time, len(workers), task["optional_hash_id"],
|
|
len(task["peers"] or []), len(task["failed"]), len(self.asked_peers)
|
|
)
|
|
)
|
|
task["site"].announce(mode="more") # Find more peers
|
|
if task["optional_hash_id"]:
|
|
if not task["time_started"]:
|
|
ask_limit = 20
|
|
elif task["priority"] > 0:
|
|
ask_limit = max(10, time.time() - task["time_started"])
|
|
else:
|
|
ask_limit = max(10, (time.time() - task["time_started"]) / 2)
|
|
if len(self.asked_peers) < ask_limit and len(task["peers"] or []) <= len(task["failed"]) * 2:
|
|
# Re-search for high priority
|
|
self.startFindOptional(find_more=True)
|
|
else:
|
|
if task["peers"]: # Release the peer lock
|
|
self.log.debug("Task peer lock release: %s" % task["inner_path"])
|
|
task["peers"] = []
|
|
self.startWorkers()
|
|
break # One reannounce per loop
|
|
|
|
self.log.debug("checkTasks stopped running")
|
|
|
|
# Returns the next free or less worked task
|
|
def getTask(self, peer):
|
|
# Sort tasks by priority and worker numbers
|
|
self.tasks.sort(key=lambda task: task["priority"] - task["workers_num"] * 5, reverse=True)
|
|
|
|
for task in self.tasks: # Find a task
|
|
if task["peers"] and peer not in task["peers"]:
|
|
continue # This peer not allowed to pick this task
|
|
if peer in task["failed"]:
|
|
continue # Peer already tried to solve this, but failed
|
|
if task["optional_hash_id"] and task["peers"] is None:
|
|
continue # No peers found yet for the optional task
|
|
return task
|
|
|
|
def removeGoodFileTasks(self):
|
|
for task in self.tasks[:]:
|
|
if task["inner_path"] not in self.site.bad_files:
|
|
self.log.debug("No longer in bad_files, marking as good: %s" % task["inner_path"])
|
|
task["done"] = True
|
|
task["evt"].set(True)
|
|
self.tasks.remove(task)
|
|
if not self.tasks:
|
|
self.started_task_num = 0
|
|
self.site.updateWebsocket()
|
|
|
|
# New peers added to site
|
|
def onPeers(self):
|
|
self.startWorkers()
|
|
|
|
def getMaxWorkers(self):
|
|
if len(self.tasks) > 100:
|
|
return config.connected_limit * 2
|
|
else:
|
|
return config.connected_limit
|
|
|
|
# Add new worker
|
|
def addWorker(self, peer):
|
|
key = peer.key
|
|
if key not in self.workers and len(self.workers) < self.getMaxWorkers():
|
|
# We dont have worker for that peer and workers num less than max
|
|
worker = Worker(self, peer)
|
|
self.workers[key] = worker
|
|
worker.key = key
|
|
worker.start()
|
|
return worker
|
|
else: # We have woker for this peer or its over the limit
|
|
return False
|
|
|
|
# Start workers to process tasks
|
|
def startWorkers(self, peers=None):
|
|
if not self.tasks:
|
|
return False # No task for workers
|
|
self.log.debug("Starting workers, tasks: %s, peers: %s, workers: %s" % (len(self.tasks), len(peers or []), len(self.workers)))
|
|
if len(self.workers) >= self.getMaxWorkers() and not peers:
|
|
return False # Workers number already maxed and no starting peers defined
|
|
if not peers:
|
|
peers = self.site.getConnectedPeers()
|
|
if len(peers) < self.getMaxWorkers():
|
|
peers += self.site.peers.values()[0:self.getMaxWorkers()]
|
|
if type(peers) is set:
|
|
peers = list(peers)
|
|
|
|
random.shuffle(peers)
|
|
for peer in peers: # One worker for every peer
|
|
if peers and peer not in peers:
|
|
continue # If peers defined and peer not valid
|
|
worker = self.addWorker(peer)
|
|
if worker:
|
|
self.log.debug("Added worker: %s, workers: %s/%s" % (peer.key, len(self.workers), self.getMaxWorkers()))
|
|
|
|
# Find peers for optional hash in local hash tables and add to task peers
|
|
def findOptionalTasks(self, optional_tasks, reset_task=False):
|
|
found = collections.defaultdict(list) # { found_hash: [peer1, peer2...], ...}
|
|
|
|
for peer in self.site.peers.values():
|
|
if not peer.has_hashfield:
|
|
continue
|
|
|
|
hashfield_set = set(peer.hashfield) # Finding in set is much faster
|
|
for task in optional_tasks:
|
|
optional_hash_id = task["optional_hash_id"]
|
|
if optional_hash_id in hashfield_set:
|
|
if reset_task and len(task["failed"]) > 0:
|
|
task["failed"] = []
|
|
if peer in task["failed"]:
|
|
continue
|
|
found[optional_hash_id].append(peer)
|
|
if task["peers"] and peer not in task["peers"]:
|
|
task["peers"].append(peer)
|
|
else:
|
|
task["peers"] = [peer]
|
|
|
|
return found
|
|
|
|
# Find peers for optional hash ids in local hash tables
|
|
def findOptionalHashIds(self, optional_hash_ids, limit=0):
|
|
found = collections.defaultdict(list) # { found_hash_id: [peer1, peer2...], ...}
|
|
|
|
for peer in self.site.peers.values():
|
|
if not peer.has_hashfield:
|
|
continue
|
|
|
|
hashfield_set = set(peer.hashfield) # Finding in set is much faster
|
|
for optional_hash_id in optional_hash_ids:
|
|
if optional_hash_id in hashfield_set:
|
|
found[optional_hash_id].append(peer)
|
|
if limit and len(found[optional_hash_id]) >= limit:
|
|
optional_hash_ids.remove(optional_hash_id)
|
|
|
|
return found
|
|
|
|
# Add peers to tasks from found result
|
|
def addOptionalPeers(self, found_ips):
|
|
found = collections.defaultdict(list)
|
|
for hash_id, peer_ips in found_ips.iteritems():
|
|
task = [task for task in self.tasks if task["optional_hash_id"] == hash_id]
|
|
if task: # Found task, lets take the first
|
|
task = task[0]
|
|
else:
|
|
continue
|
|
for peer_ip in peer_ips:
|
|
peer = self.site.addPeer(peer_ip[0], peer_ip[1], return_peer=True)
|
|
if not peer:
|
|
continue
|
|
if task["peers"] is None:
|
|
task["peers"] = []
|
|
if peer not in task["peers"]:
|
|
task["peers"].append(peer)
|
|
found[hash_id].append(peer)
|
|
if peer.hashfield.appendHashId(hash_id): # Peer has this file
|
|
peer.time_hashfield = None # Peer hashfield probably outdated
|
|
|
|
return found
|
|
|
|
# Start find peers for optional files
|
|
@util.Noparallel(blocking=False, ignore_args=True)
|
|
def startFindOptional(self, reset_task=False, find_more=False, high_priority=False):
|
|
# Wait for more file requests
|
|
if len(self.tasks) < 20 or high_priority:
|
|
time.sleep(0.01)
|
|
if len(self.tasks) > 90:
|
|
time.sleep(5)
|
|
else:
|
|
time.sleep(0.5)
|
|
|
|
optional_tasks = [task for task in self.tasks if task["optional_hash_id"]]
|
|
if not optional_tasks:
|
|
return False
|
|
optional_hash_ids = set([task["optional_hash_id"] for task in optional_tasks])
|
|
time_tasks = self.time_task_added
|
|
|
|
self.log.debug(
|
|
"Finding peers for optional files: %s (reset_task: %s, find_more: %s)" %
|
|
(optional_hash_ids, reset_task, find_more)
|
|
)
|
|
found = self.findOptionalTasks(optional_tasks, reset_task=reset_task)
|
|
|
|
if found:
|
|
found_peers = set([peer for peers in found.values() for peer in peers])
|
|
self.startWorkers(found_peers)
|
|
|
|
if len(found) < len(optional_hash_ids) or find_more or (high_priority and any(len(peers) < 10 for peers in found.itervalues())):
|
|
self.log.debug("No local result for optional files: %s" % (optional_hash_ids - set(found)))
|
|
|
|
# Query hashfield from connected peers
|
|
threads = []
|
|
peers = self.site.getConnectedPeers()
|
|
if not peers:
|
|
peers = self.site.getConnectablePeers()
|
|
for peer in peers:
|
|
if not peer.time_hashfield:
|
|
threads.append(gevent.spawn(peer.updateHashfield))
|
|
gevent.joinall(threads, timeout=5)
|
|
|
|
if time_tasks != self.time_task_added: # New task added since start
|
|
optional_tasks = [task for task in self.tasks if task["optional_hash_id"]]
|
|
optional_hash_ids = set([task["optional_hash_id"] for task in optional_tasks])
|
|
|
|
found = self.findOptionalTasks(optional_tasks)
|
|
self.log.debug("Found optional files after query hashtable connected peers: %s/%s" % (
|
|
len(found), len(optional_hash_ids)
|
|
))
|
|
|
|
if found:
|
|
found_peers = set([peer for hash_id_peers in found.values() for peer in hash_id_peers])
|
|
self.startWorkers(found_peers)
|
|
|
|
if len(found) < len(optional_hash_ids) or find_more:
|
|
self.log.debug("No connected hashtable result for optional files: %s" % (optional_hash_ids - set(found)))
|
|
|
|
# Try to query connected peers
|
|
threads = []
|
|
peers = [peer for peer in self.site.getConnectedPeers() if peer not in self.asked_peers]
|
|
if not peers:
|
|
peers = self.site.getConnectablePeers()
|
|
|
|
for peer in peers:
|
|
threads.append(gevent.spawn(peer.findHashIds, list(optional_hash_ids)))
|
|
self.asked_peers.append(peer)
|
|
|
|
for i in range(5):
|
|
time.sleep(1)
|
|
thread_values = [thread.value for thread in threads if thread.value]
|
|
if not thread_values:
|
|
continue
|
|
|
|
found_ips = helper.mergeDicts(thread_values)
|
|
found = self.addOptionalPeers(found_ips)
|
|
self.log.debug("Found optional files after findhash connected peers: %s/%s (asked: %s)" % (
|
|
len(found), len(optional_hash_ids), len(threads)
|
|
))
|
|
|
|
if found:
|
|
found_peers = set([peer for hash_id_peers in found.values() for peer in hash_id_peers])
|
|
self.startWorkers(found_peers)
|
|
|
|
if len(thread_values) == len(threads):
|
|
# Got result from all started thread
|
|
break
|
|
|
|
if len(found) < len(optional_hash_ids):
|
|
self.log.debug("No findHash result, try random peers: %s" % (optional_hash_ids - set(found)))
|
|
# Try to query random peers
|
|
|
|
if time_tasks != self.time_task_added: # New task added since start
|
|
optional_tasks = [task for task in self.tasks if task["optional_hash_id"]]
|
|
optional_hash_ids = set([task["optional_hash_id"] for task in optional_tasks])
|
|
|
|
threads = []
|
|
peers = self.site.getConnectablePeers(ignore=self.asked_peers)
|
|
|
|
for peer in peers:
|
|
threads.append(gevent.spawn(peer.findHashIds, list(optional_hash_ids)))
|
|
self.asked_peers.append(peer)
|
|
|
|
gevent.joinall(threads, timeout=15)
|
|
|
|
found_ips = helper.mergeDicts([thread.value for thread in threads if thread.value])
|
|
found = self.addOptionalPeers(found_ips)
|
|
self.log.debug("Found optional files after findhash random peers: %s/%s" % (len(found), len(optional_hash_ids)))
|
|
|
|
if found:
|
|
found_peers = set([peer for hash_id_peers in found.values() for peer in hash_id_peers])
|
|
self.startWorkers(found_peers)
|
|
|
|
if len(found) < len(optional_hash_ids):
|
|
self.log.debug("No findhash result for optional files: %s" % (optional_hash_ids - set(found)))
|
|
|
|
# Stop all worker
|
|
def stopWorkers(self):
|
|
for worker in self.workers.values():
|
|
worker.stop()
|
|
tasks = self.tasks[:] # Copy
|
|
for task in tasks: # Mark all current task as failed
|
|
self.failTask(task)
|
|
|
|
# Find workers by task
|
|
def findWorkers(self, task):
|
|
workers = []
|
|
for worker in self.workers.values():
|
|
if worker.task == task:
|
|
workers.append(worker)
|
|
return workers
|
|
|
|
# Ends and remove a worker
|
|
def removeWorker(self, worker):
|
|
worker.running = False
|
|
if worker.key in self.workers:
|
|
del(self.workers[worker.key])
|
|
self.log.debug("Removed worker, workers: %s/%s" % (len(self.workers), self.getMaxWorkers()))
|
|
if len(self.workers) <= self.getMaxWorkers() / 3 and len(self.asked_peers) < 10:
|
|
important_task = (task for task in self.tasks if task["priority"] > 0)
|
|
if next(important_task, None) or len(self.asked_peers) == 0:
|
|
self.startFindOptional(find_more=True)
|
|
else:
|
|
self.startFindOptional()
|
|
|
|
|
|
# Tasks sorted by this
|
|
def getPriorityBoost(self, inner_path):
|
|
if inner_path == "content.json":
|
|
return 9999 # Content.json always priority
|
|
if inner_path == "index.html":
|
|
return 9998 # index.html also important
|
|
if "-default" in inner_path:
|
|
return -4 # Default files are cloning not important
|
|
elif inner_path.endswith(".css"):
|
|
return 5 # boost css files priority
|
|
elif inner_path.endswith(".js"):
|
|
return 4 # boost js files priority
|
|
elif inner_path.endswith("dbschema.json"):
|
|
return 3 # boost database specification
|
|
elif inner_path.endswith("content.json"):
|
|
return 1 # boost included content.json files priority a bit
|
|
elif inner_path.endswith(".json"):
|
|
return 2 # boost data json files priority more
|
|
return 0
|
|
|
|
# Create new task and return asyncresult
|
|
def addTask(self, inner_path, peer=None, priority=0):
|
|
self.site.onFileStart(inner_path) # First task, trigger site download started
|
|
task = self.findTask(inner_path)
|
|
if task: # Already has task for that file
|
|
if peer and task["peers"]: # This peer also has new version, add it to task possible peers
|
|
task["peers"].append(peer)
|
|
self.log.debug("Added peer %s to %s" % (peer.key, task["inner_path"]))
|
|
self.startWorkers([peer])
|
|
elif peer and peer in task["failed"]:
|
|
task["failed"].remove(peer) # New update arrived, remove the peer from failed peers
|
|
self.log.debug("Removed peer %s from failed %s" % (peer.key, task["inner_path"]))
|
|
self.startWorkers([peer])
|
|
|
|
if priority:
|
|
task["priority"] += priority # Boost on priority
|
|
return task["evt"]
|
|
else: # No task for that file yet
|
|
evt = gevent.event.AsyncResult()
|
|
if peer:
|
|
peers = [peer] # Only download from this peer
|
|
else:
|
|
peers = None
|
|
file_info = self.site.content_manager.getFileInfo(inner_path)
|
|
if file_info and file_info["optional"]:
|
|
optional_hash_id = helper.toHashId(file_info["sha512"])
|
|
else:
|
|
optional_hash_id = None
|
|
if file_info:
|
|
size = file_info.get("size", 0)
|
|
else:
|
|
size = 0
|
|
priority += self.getPriorityBoost(inner_path)
|
|
task = {
|
|
"evt": evt, "workers_num": 0, "site": self.site, "inner_path": inner_path, "done": False,
|
|
"optional_hash_id": optional_hash_id, "time_added": time.time(), "time_started": None,
|
|
"time_action": None, "peers": peers, "priority": priority, "failed": [], "size": size
|
|
}
|
|
|
|
self.tasks.append(task)
|
|
|
|
self.started_task_num += 1
|
|
self.log.debug(
|
|
"New task: %s, peer lock: %s, priority: %s, optional_hash_id: %s, tasks started: %s" %
|
|
(task["inner_path"], peers, priority, optional_hash_id, self.started_task_num)
|
|
)
|
|
self.time_task_added = time.time()
|
|
|
|
if optional_hash_id:
|
|
if self.asked_peers:
|
|
del self.asked_peers[:] # Reset asked peers
|
|
self.startFindOptional(high_priority=priority > 0)
|
|
|
|
if peers:
|
|
self.startWorkers(peers)
|
|
|
|
else:
|
|
self.startWorkers(peers)
|
|
return evt
|
|
|
|
# Find a task using inner_path
|
|
def findTask(self, inner_path):
|
|
for task in self.tasks:
|
|
if task["inner_path"] == inner_path:
|
|
return task
|
|
return None # Not found
|
|
|
|
# Wait for other tasks
|
|
def checkComplete(self):
|
|
time.sleep(0.1)
|
|
if not self.tasks:
|
|
self.log.debug("Check compelte: No tasks")
|
|
self.onComplete()
|
|
|
|
def onComplete(self):
|
|
self.started_task_num = 0
|
|
del self.asked_peers[:]
|
|
self.site.onComplete() # No more task trigger site complete
|
|
|
|
# Mark a task done
|
|
def doneTask(self, task):
|
|
task["done"] = True
|
|
self.tasks.remove(task) # Remove from queue
|
|
if task["optional_hash_id"]:
|
|
self.log.debug("Downloaded optional file, adding to hashfield: %s" % task["inner_path"])
|
|
self.site.content_manager.optionalDownloaded(task["inner_path"], task["optional_hash_id"], task["size"])
|
|
self.site.onFileDone(task["inner_path"])
|
|
task["evt"].set(True)
|
|
if not self.tasks:
|
|
gevent.spawn(self.checkComplete)
|
|
|
|
# Mark a task failed
|
|
def failTask(self, task):
|
|
if task in self.tasks:
|
|
task["done"] = True
|
|
self.tasks.remove(task) # Remove from queue
|
|
self.site.onFileFail(task["inner_path"])
|
|
task["evt"].set(False)
|
|
if not self.tasks:
|
|
self.started_task_num = 0
|