From 289efe992257f6e6bda379181a78506658661e0a Mon Sep 17 00:00:00 2001
From: Dhruba Borthakur <dhruba@fb.com>
Date: Tue, 9 Jul 2013 16:17:00 -0700
Subject: [PATCH] Update statistics only if needed.

Summary:
Update statistics only if needed.

Test Plan:

Reviewers:

CC:

Task ID: #

Blame Rev:
---
 db/version_set.cc | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/db/version_set.cc b/db/version_set.cc
index 088550120..876e41e84 100644
--- a/db/version_set.cc
+++ b/db/version_set.cc
@@ -2169,8 +2169,10 @@ Compaction* VersionSet::PickCompactionUniversal(int level, double score) {
   }
 
   // update statistics
-  options_->statistics->measureTime(NUM_FILES_IN_SINGLE_COMPACTION,
-                                     c->inputs_[0].size());
+  if (options_->statistics != nullptr) {
+    options_->statistics->measureTime(NUM_FILES_IN_SINGLE_COMPACTION,
+                                      c->inputs_[0].size());
+  }
 
   c->input_version_ = current_;
   c->input_version_->Ref();