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sleep for 5 seconds after starting a browser, since starting 20 at once brings the computer to its knees

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This commit is contained in:
Noah Levitt 2014-06-03 15:57:12 -07:00
parent 1f91018d91
commit e619e013b6
1 changed files with 6 additions and 2 deletions
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8
umbra/controller.py
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@ -106,11 +106,15 @@ class AmqpBrowserController:
consumer.callbacks = [self._make_callback(browser)]
conn.drain_events(timeout=0.5)
consumer.callbacks = None
# browser startup is a heavy operation, so do
# it once every 5 seconds at most
time.sleep(5)
except KeyError:
# no browsers available
# thrown by self._browser_pool.acquire() - no browsers available
time.sleep(0.5)
except socket.timeout:
# no urls in the queue
# thrown by conn.drain_events(timeout=0.5) - no urls in the queue
self._browser_pool.release(browser)
except BaseException as e: