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Diffstat (limited to '')
| -rw-r--r-- | synapse/util/retryutils.py | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/synapse/util/retryutils.py b/synapse/util/retryutils.py index cc88a0b532..0961dd5b25 100644 --- a/synapse/util/retryutils.py +++ b/synapse/util/retryutils.py @@ -125,6 +125,10 @@ class RetryDestinationLimiter(object): def __exit__(self, exc_type, exc_val, exc_tb): valid_err_code = False if exc_type is not None and issubclass(exc_type, CodeMessageException): + # Some error codes are perfectly fine for some APIs, whereas other + # APIs may expect to never received e.g. a 404. It's important to + # handle 404 as some remote servers will return a 404 when the HS + # has been decommissioned. if exc_val.code < 400: valid_err_code = True elif exc_val.code == 404 and self.backoff_on_404: |