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authorErik Johnston <erik@matrix.org>2015-11-02 16:49:05 +0000
committerErik Johnston <erik@matrix.org>2015-11-02 16:56:30 +0000
commiteacb068ac2a6df8494d9f7255c80f4429e779209 (patch)
treec6e91c4528af327f62bc863f439e18ef1439eab7 /synapse/util/retryutils.py
parentMerge pull request #338 from matrix-org/daniel/fixdb (diff)
downloadsynapse-eacb068ac2a6df8494d9f7255c80f4429e779209.tar.xz
Retry dead servers a lot less often
Diffstat (limited to '')
-rw-r--r--synapse/util/retryutils.py7
1 files changed, 5 insertions, 2 deletions
diff --git a/synapse/util/retryutils.py b/synapse/util/retryutils.py
index a42138f556..2fe6814807 100644
--- a/synapse/util/retryutils.py
+++ b/synapse/util/retryutils.py
@@ -18,6 +18,7 @@ from twisted.internet import defer
 from synapse.api.errors import CodeMessageException
 
 import logging
+import random
 
 
 logger = logging.getLogger(__name__)
@@ -85,8 +86,9 @@ def get_retry_limiter(destination, clock, store, **kwargs):
 
 class RetryDestinationLimiter(object):
     def __init__(self, destination, clock, store, retry_interval,
-                 min_retry_interval=5000, max_retry_interval=60 * 60 * 1000,
-                 multiplier_retry_interval=2,):
+                 min_retry_interval=10 * 60 * 1000,
+                 max_retry_interval=24 * 60 * 60 * 1000,
+                 multiplier_retry_interval=5,):
         """Marks the destination as "down" if an exception is thrown in the
         context, except for CodeMessageException with code < 500.
 
@@ -140,6 +142,7 @@ class RetryDestinationLimiter(object):
             # We couldn't connect.
             if self.retry_interval:
                 self.retry_interval *= self.multiplier_retry_interval
+                self.retry_interval *= int(random.uniform(0.8, 1.4))
 
                 if self.retry_interval >= self.max_retry_interval:
                     self.retry_interval = self.max_retry_interval