Add config option to set the soft fd limit on start

1 files changed, 7 insertions, 0 deletions

diff --git a/synapse/config/server.py b/synapse/config/server.py
index 31e44cc857..a3edf208e9 100644
--- a/synapse/config/server.py
+++ b/synapse/config/server.py
@@ -31,6 +31,7 @@ class ServerConfig(Config):
         self.webclient = True
         self.manhole = args.manhole
         self.no_tls = args.no_tls
+        self.soft_file_limit = args.soft_file_limit
 
         if not args.content_addr:
             host = args.server_name
@@ -77,6 +78,12 @@ class ServerConfig(Config):
                                   "content repository")
         server_group.add_argument("--no-tls", action='store_true',
                                   help="Don't bind to the https port.")
+        server_group.add_argument("--soft-file-limit", type=int, default=0,
+                                  help="Set the limit on the number of file "
+                                       "descriptors synapse can use. Zero "
+                                       "is used to indicate synapse should "
+                                       "not change the limit from system "
+                                       "default.")
 
     def read_signing_key(self, signing_key_path):
         signing_keys = self.read_file(signing_key_path, "signing_key")