From 9e2ff23d542fcea5cab9862f0db378eb3f68d553 Mon Sep 17 00:00:00 2001
From: Henry de Valence <hdevalence@hdevalence.ca>
Date: Sat, 19 Sep 2020 23:58:41 -0700
Subject: [PATCH] consensus, state: increase Buffer sizes

Using a Buffer with size 1 is a footgun because it allows only one
sender to call poll_ready at a time.  This is usually undesirable
because it means that a task or service that calls poll_ready but only
makes a service call later (potentially much later) will block all other
callers.
---
 zebra-consensus/src/chain.rs | 2 +-
 zebra-state/src/service.rs   | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/zebra-consensus/src/chain.rs b/zebra-consensus/src/chain.rs
index 62873400..79abe5c7 100644
--- a/zebra-consensus/src/chain.rs
+++ b/zebra-consensus/src/chain.rs
@@ -152,6 +152,6 @@ where
             max_checkpoint_height,
             last_block_height: None,
         }),
-        1,
+        3,
     )
 }
diff --git a/zebra-state/src/service.rs b/zebra-state/src/service.rs
index 9e688c05..7c14ad68 100644
--- a/zebra-state/src/service.rs
+++ b/zebra-state/src/service.rs
@@ -104,5 +104,5 @@ pub fn init(
     config: Config,
     network: Network,
 ) -> Buffer<BoxService<Request, Response, BoxError>, Request> {
-    Buffer::new(BoxService::new(StateService::new(config, network)), 1)
+    Buffer::new(BoxService::new(StateService::new(config, network)), 3)
 }