multithreading - Queue Python threading (Segmentation fault: 11) -


i have queue set this. want run through items in db query , pass them downloader class. db connection keeps going away , program dies because think many threads open?

i error: segmentation fault: 11

there 100k+ items.

how can fix process few items @ time , speed process?

class downloader(threading.thread):     """threaded file downloader"""      def __init__(self, queue, db):         threading.thread.__init__(self)         self.queue = queue         self.db = db      def remove_unicode(self, title):         try:             return unicodedata.normalize('nfkd', title).encode('ascii','ignore')         except:             return title      def run(self):         while true:             # gets url queue             row = self.queue.get()             title = row[0]             etc...   def main(urls):       queue = queue.queue()      # create thread pool , give them queue      in range(5):           t = downloader(queue, db)           t.setdaemon(true)           t.start()          # give queue data      = 1      url in urls:           print           queue.put(url)           i+=1         # wait queue finish           queue.join()  if __name__ == "__main__":      db = databaseutil()      sql = 'select `title`, `site` `xyz`'      titles = db.query(sql)      main(titles)


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