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authorErik Johnston <erik@matrix.org>2019-06-07 12:34:52 +0100
committerErik Johnston <erik@matrix.org>2019-06-07 12:39:10 +0100
commit95d38afe96bfb38e02de9767603b2655c07a7e0f (patch)
treec852e77d75cef0adb4fbfe76c06754e4b99018f8 /synapse
parentMerge tag 'v1.0.0rc1' into develop (diff)
downloadsynapse-95d38afe96bfb38e02de9767603b2655c07a7e0f.tar.xz
Don't log exception when failing to fetch remote content.
In particular, let's not log stack traces when we stop processing
becuase the response body was too large.
Diffstat (limited to 'synapse')
-rw-r--r--synapse/http/client.py13
-rw-r--r--synapse/rest/media/v1/media_repository.py6
2 files changed, 13 insertions, 6 deletions
diff --git a/synapse/http/client.py b/synapse/http/client.py
index 77fe68818b..5c073fff07 100644
--- a/synapse/http/client.py
+++ b/synapse/http/client.py
@@ -17,7 +17,7 @@
 import logging
 from io import BytesIO
 
-from six import text_type
+from six import raise_from, text_type
 from six.moves import urllib
 
 import treq
@@ -542,10 +542,15 @@ class SimpleHttpClient(object):
             length = yield make_deferred_yieldable(
                 _readBodyToFile(response, output_stream, max_size)
             )
+        except SynapseError:
+            # This can happen e.g. because the body is too large.
+            raise
         except Exception as e:
-            logger.exception("Failed to download body")
-            raise SynapseError(
-                502, ("Failed to download remote body: %s" % e), Codes.UNKNOWN
+            raise_from(
+                SynapseError(
+                    502, ("Failed to download remote body: %s" % e),
+                ),
+                e
             )
 
         defer.returnValue(
diff --git a/synapse/rest/media/v1/media_repository.py b/synapse/rest/media/v1/media_repository.py
index 8569677355..a4929dd5db 100644
--- a/synapse/rest/media/v1/media_repository.py
+++ b/synapse/rest/media/v1/media_repository.py
@@ -386,8 +386,10 @@ class MediaRepository(object):
                 raise SynapseError(502, "Failed to fetch remote media")
 
             except SynapseError:
-                logger.exception("Failed to fetch remote media %s/%s",
-                                 server_name, media_id)
+                logger.warn(
+                    "Failed to fetch remote media %s/%s",
+                    server_name, media_id,
+                )
                 raise
             except NotRetryingDestination:
                 logger.warn("Not retrying destination %r", server_name)