Don't cache errors at all
This commit is contained in:
parent
ecd7e36047
commit
feb15dc99f
1 changed files with 9 additions and 10 deletions
|
@ -81,16 +81,7 @@ class HttpTransactionCache(object):
|
|||
Deferred which resolves to a tuple of (response_code, response_dict).
|
||||
"""
|
||||
try:
|
||||
observable = self.transactions[txn_key][0]
|
||||
if not observable.has_called() or observable.has_succeeded():
|
||||
return observable.observe()
|
||||
# if the request has already been called with a non-2xx status
|
||||
# (a Twisted failure), remove it from the transaction map.
|
||||
# This is done to ensure that we don't cache rate-limiting errors, etc.
|
||||
res = observable.get_result()
|
||||
if res.value.code >= 300:
|
||||
del self.transactions[txn_key]
|
||||
# fall through
|
||||
return self.transactions[txn_key][0].observe()
|
||||
except (KeyError, IndexError):
|
||||
pass # execute the function instead.
|
||||
|
||||
|
@ -101,6 +92,14 @@ class HttpTransactionCache(object):
|
|||
# to the observers.
|
||||
observable = ObservableDeferred(deferred, consumeErrors=True)
|
||||
self.transactions[txn_key] = (observable, self.clock.time_msec())
|
||||
|
||||
# if the request fails with a Twisted failure, remove it
|
||||
# from the transaction map. This is done to ensure that we don't
|
||||
# cache transient errors like rate-limiting errors, etc.
|
||||
def remove_from_map(err):
|
||||
del self.transactions[txn_key]
|
||||
return err
|
||||
observable.addErrback(remove_from_map)
|
||||
return observable.observe()
|
||||
|
||||
def _cleanup(self):
|
||||
|
|
Loading…
Reference in a new issue