Implement indexing into Apache Druid #1
2
db.py
2
db.py
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@ -55,6 +55,8 @@ def store_message_bulk(data):
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print("BULK", len(data))
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if not data:
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return
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# 10000: maximum inserts we can submit to
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# Manticore as of Sept 2022
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split_posts = array_split(data, ceil(len(data) / 10000))
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for messages in split_posts:
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print("PROCESSING SPLIT OF", len(messages), "MESSAGES")
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@ -17,9 +17,29 @@ from schemas.ch4_s import ATTRMAP
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from numpy import array_split
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from math import ceil
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p = ProcessPoolExecutor(10)
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# CONFIGURATION #
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# Number of 4chan threads to request at once
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THREADS_CONCURRENT = 1000
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# Seconds to wait between every THREADS_CONCURRENT requests
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THREADS_DELAY = 0.1
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# Seconds to wait between crawls
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CRAWL_DELAY = 5
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# Semaphore value ?
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THREADS_SEMAPHORE = 100
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# Maximum number of CPU threads to use for post processing
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CPU_THREADS = 2
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# CONFIGURATION END #
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p = ProcessPoolExecutor(CPU_THREADS)
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class Chan4(object):
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"""
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4chan indexer, crawler and ingester.
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@ -32,7 +52,6 @@ class Chan4(object):
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self.api_endpoint = "https://a.4cdn.org"
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# self.boards = ["out", "g", "a", "3", "pol"] #
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self.boards = []
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self.thread_list = {}
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# self.thread_deferreds = []
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# self.content_deferreds = []
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@ -52,6 +71,9 @@ class Chan4(object):
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async def run(self):
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await self.get_board_list()
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while True:
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await self.get_thread_lists(self.boards)
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await asyncio.sleep(CRAWL_DELAY)
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async def get_board_list(self):
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responses = await self.api_call({"_": "boards.json"})
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@ -62,8 +84,6 @@ class Chan4(object):
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self.boards.append(board["board"])
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self.log.debug(f"Got boards: {self.boards}")
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await self.get_thread_lists(self.boards)
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async def get_thread_lists(self, boards):
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self.log.debug(f"Getting thread list for {boards}")
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board_urls = {board: f"{board}/catalog.json" for board in boards}
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@ -80,17 +100,27 @@ class Chan4(object):
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self.log.info(f"Got thread list for {mapped}: {len(response)}")
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print("THREAD LIST FULL LEN", len(to_get))
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if not to_get:
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await self.get_thread_lists(self.boards)
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return
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split_threads = array_split(to_get, ceil(len(to_get) / 10000))
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split_threads = array_split(to_get, ceil(len(to_get) / THREADS_CONCURRENT))
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print("SPLIT THREADS INTO", len(split_threads))
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for threads in split_threads:
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print("SUBMITTED THREADS FOR", len(threads))
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await self.get_threads_content(threads)
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await asyncio.sleep(THREADS_DELAY)
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#await self.get_threads_content(to_get)
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# Recurse
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await self.get_thread_lists(self.boards)
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def take_items(self, dict_list, n):
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i = 0
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try:
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for x in list(dict_list.keys()):
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for item in list(dict_list[x]):
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yield (x, item)
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dict_list[x].remove(item)
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i += 1
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if i == n:
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raise StopIteration
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except:
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print("Take items took", i, "items")
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async def get_threads_content(self, thread_list):
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thread_urls = {
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@ -109,16 +139,31 @@ class Chan4(object):
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all_posts[mapped] = response["posts"]
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# Split into 10,000 chunks
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# split_posts = array_split(all_posts, ceil(len(all_posts) / 10000))
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# print("SPLIT CHUNK", len(split_posts))
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if not all_posts:
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print("NOTALL POSTS", all_posts)
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return
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threads_per_core = int(len(all_posts) / CPU_THREADS)
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print("THREADS PER CORE", threads_per_core)
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for i in range(CPU_THREADS):
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print("SUBMITTING CORE", i)
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new_dict = {}
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pulled_posts = self.take_items(all_posts, threads_per_core)
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for k, v in pulled_posts:
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if k in new_dict:
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new_dict[k].append(v)
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else:
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new_dict[k] = [v]
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print("SUBMITTING", len(new_dict), "THREADS")
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await self.handle_posts_thread(new_dict)
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# print("VAL", ceil(len(all_posts) / threads_per_core))
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# split_posts = array_split(all_posts, ceil(len(all_posts) / threads_per_core))
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# print("THREADS PER CORE SPLIT", len(split_posts))
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# # print("SPLIT CHUNK", len(split_posts))
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# for posts in split_posts:
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# with futures.ThreadPoolExecutor(max_workers=6) as executor:
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# print("SUBMITTED THREAD FOR", len(posts))
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# executor.submit(self.handle_posts, board, thread, posts)
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# await self.handle_posts(board, thread, response["posts"])
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# await asyncio.sleep(1)
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await self.handle_posts_thread(all_posts)
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# self.handle_posts(all_posts)
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# print("SPAWNED THREAD TO PROCESS", len(posts), "POSTS")
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# await self.handle_posts_thread(posts)
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#await self.handle_posts_thread(all_posts)
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@asyncio.coroutine
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def handle_posts_thread(self, posts):
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@ -159,7 +204,8 @@ class Chan4(object):
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old_ts = datetime.strptime(old_time, "%m/%d/%y(%a)%H:%M:%S")
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else:
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old_ts = datetime.strptime(old_time, "%m/%d/%y(%a)%H:%M")
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new_ts = old_ts.isoformat()
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# new_ts = old_ts.isoformat()
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new_ts = int(old_ts.timestamp())
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posts[key][index]["ts"] = new_ts
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if "msg" in post:
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soup = BeautifulSoup(posts[key][index]["msg"], "html.parser")
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@ -171,6 +217,7 @@ class Chan4(object):
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# print({name_map[name]: val for name, val in post.items()})
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# print(f"Got posts: {len(posts)}")
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if to_store:
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db.store_message_bulk(to_store)
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async def fetch(self, url, session, mapped):
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@ -192,7 +239,7 @@ class Chan4(object):
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async def api_call(self, methods={}):
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tasks = []
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sem = asyncio.Semaphore(100)
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sem = asyncio.Semaphore(THREADS_SEMAPHORE)
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connector = aiohttp.TCPConnector(limit=None)
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async with aiohttp.ClientSession(connector=connector) as session:
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for mapped, method in methods.items():
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@ -35,7 +35,8 @@ class DiscordClient(discord.Client):
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return
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a = self.recurse_dict(message)
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a["ts"] = a["time"].isoformat()
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#a["ts"] = a["time"].isoformat()
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a["ts"] = int(a["time"].timestamp())
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del a["time"]
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a["type"] = "msg"
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a["src"] = "dis"
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