From 229559b46ac9eb77ad1dbad69b9d6d9683761a4c Mon Sep 17 00:00:00 2001
From: Charles Allen <charles@allen-net.com>
Date: Sat, 7 Jan 2017 12:34:47 -0800
Subject: [PATCH] Make TaskLockbox's ReentrantLock fair (#3828)

---
 .../src/main/java/io/druid/indexing/overlord/TaskLockbox.java   | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/indexing-service/src/main/java/io/druid/indexing/overlord/TaskLockbox.java b/indexing-service/src/main/java/io/druid/indexing/overlord/TaskLockbox.java
index 50eaa5ef3a7..0c496973873 100644
--- a/indexing-service/src/main/java/io/druid/indexing/overlord/TaskLockbox.java
+++ b/indexing-service/src/main/java/io/druid/indexing/overlord/TaskLockbox.java
@@ -65,7 +65,7 @@ public class TaskLockbox
   // Datasource -> Interval -> Tasks + TaskLock
   private final Map<String, NavigableMap<Interval, TaskLockPosse>> running = Maps.newHashMap();
   private final TaskStorage taskStorage;
-  private final ReentrantLock giant = new ReentrantLock();
+  private final ReentrantLock giant = new ReentrantLock(true);
   private final Condition lockReleaseCondition = giant.newCondition();
 
   private static final EmittingLogger log = new EmittingLogger(TaskLockbox.class);