From: Sage Weil <sage@inktank.com>
Date: Fri, 28 Feb 2014 16:06:03 +0000 (-0800)
Subject: mon/OSDMonitor: make default false-positive-probability 5%
X-Git-Tag: v0.78~112^2
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=refs%2Fpull%2F1331%2Fhead;p=ceph.git

mon/OSDMonitor: make default false-positive-probability 5%

This is a more conservative default (as in, less memory consumed) for
newly created cache pools.

Signed-off-by: Sage Weil <sage@inktank.com>
---

diff --git a/src/mon/OSDMonitor.cc b/src/mon/OSDMonitor.cc
index 7febc5b7203..c5b2e325ef3 100644
--- a/src/mon/OSDMonitor.cc
+++ b/src/mon/OSDMonitor.cc
@@ -3213,7 +3213,7 @@ int OSDMonitor::prepare_command_pool_set(map<string,cmd_vartype> &cmdmap,
       p.hit_set_params = HitSet::Params();
     else if (val == "bloom") {
       BloomHitSet::Params *bsp = new BloomHitSet::Params;
-      bsp->set_fpp(.01);
+      bsp->set_fpp(.05);
       p.hit_set_params = HitSet::Params(bsp);
     } else if (val == "explicit_hash")
       p.hit_set_params = HitSet::Params(new ExplicitHashHitSet::Params);