X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/e9ab67bb8788241d6ebbfbe74b5af36f4bd63dd8..4957ed9549811afa3ec4a3010f333e9046189acd:/lib/config/config.default.yml

diff --git a/lib/config/config.default.yml b/lib/config/config.default.yml
index a52d09f68b..0fb4a2babd 100644
--- a/lib/config/config.default.yml
+++ b/lib/config/config.default.yml
@@ -223,10 +223,23 @@ Clusters:
       # parameter higher than this value, this value is used instead.
       MaxItemsPerResponse: 1000
 
-      # Maximum number of concurrent requests to accept in a single
-      # service process, or 0 for no limit.
+      # Maximum number of concurrent requests to process concurrently
+      # in a single service process, or 0 for no limit.
       MaxConcurrentRequests: 64
 
+      # Maximum number of incoming requests to hold in a priority
+      # queue waiting for one of the MaxConcurrentRequests slots to be
+      # free. When the queue is longer than this, respond 503 to the
+      # lowest priority request.
+      #
+      # If MaxQueuedRequests is 0, respond 503 immediately to
+      # additional requests while at the MaxConcurrentRequests limit.
+      MaxQueuedRequests: 64
+
+      # Maximum time a "lock container" request is allowed to wait in
+      # the incoming request queue before returning 503.
+      MaxQueueTimeForLockRequests: 2s
+
       # Fraction of MaxConcurrentRequests that can be "log create"
       # messages at any given time.  This is to prevent logging
       # updates from crowding out more important requests.