Merge pull request DIRACGrid#8061 from DIRACGridBot/cherry-pick-2-979b75ee3-integration

[sweep:integration] cache getProxyPrrovidersForDN

Author: fstagni

src/DIRAC/ConfigurationSystem/Client/Helpers/Registry.py

@@ -1,7 +1,13 @@
 """ Helper for /Registry section
 """
+
 import errno
 
+from threading import Lock
+
+from cachetools import TTLCache, cached
+
+
 from DIRAC import S_OK, S_ERROR
 from DIRAC.ConfigurationSystem.Client.Config import gConfig
 from DIRAC.ConfigurationSystem.Client.Helpers.CSGlobals import getVO
@@ -628,6 +634,10 @@ def getDNProperty(userDN, value, defaultValue=None):
     return S_OK(defaultValue)
 
 
+_cache_getProxyProvidersForDN = TTLCache(maxsize=1000, ttl=60)
+
+
+@cached(_cache_getProxyProvidersForDN, lock=Lock())
 def getProxyProvidersForDN(userDN):
     """Get proxy providers by user DN