From 169a9663b2629dcdd66cf7c3723bb8167bc5fb76 Mon Sep 17 00:00:00 2001
From: Gregory Burd <greg@basho.com>
Date: Tue, 12 Mar 2013 10:29:33 -0400
Subject: [PATCH] Set a lower bound for session_max to 1024 (which is a guess)
 or 2x ring_size (another guess).

---
 src/riak_kv_wiredtiger_backend.erl | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/riak_kv_wiredtiger_backend.erl b/src/riak_kv_wiredtiger_backend.erl
index 48e8d09..01fdecc 100644
--- a/src/riak_kv_wiredtiger_backend.erl
+++ b/src/riak_kv_wiredtiger_backend.erl
@@ -103,7 +103,11 @@ start(Partition, Config) ->
 		    SessionMax =
 			case app_helper:get_env(riak_core, ring_creation_size) of
 			    undefined -> 1024;
-			    RingSize -> RingSize
+			    RingSize ->
+				case RingSize < 512 of
+				    true -> 1024;
+				    false -> RingSize * 2
+				end
 			end,
 		    WTConfig =
 			case proplists:lookup(wt, Config) of