Use zero as default score in DynamicEndpointSnitch

Project: http://git-wip-us.apache.org/repos/asf/cassandra/repo
Commit: http://git-wip-us.apache.org/repos/asf/cassandra/commit/29d6237a
Tree: http://git-wip-us.apache.org/repos/asf/cassandra/tree/29d6237a
Diff: http://git-wip-us.apache.org/repos/asf/cassandra/diff/29d6237a

Branch: refs/heads/trunk
Commit: 29d6237a00b577400c4b4a63989d41f1baa2aa60
Parents: 656cca7
Author: Dikang Gu <dikan...@gmail.com>
Authored: Thu Feb 22 14:35:20 2018 -0800
Committer: Dikang Gu <dikan...@gmail.com>
Committed: Tue Mar 20 15:10:06 2018 -0700

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 CHANGES.txt                                                        | 1 +
 src/java/org/apache/cassandra/locator/DynamicEndpointSnitch.java   | 2 +-
 .../org/apache/cassandra/locator/DynamicEndpointSnitchTest.java    | 2 +-
 3 files changed, 3 insertions(+), 2 deletions(-)
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http://git-wip-us.apache.org/repos/asf/cassandra/blob/29d6237a/CHANGES.txt
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diff --git a/CHANGES.txt b/CHANGES.txt
index bae967f..27a25cc 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -1,4 +1,5 @@
 3.11.3
+ * Use zero as default score in DynamicEndpointSnitch (CASSANDRA-14252)
  * SASI tokenizer for simple delimiter based entries (CASSANDRA-14247)
  * Fix Loss of digits when doing CAST from varint/bigint to decimal 
(CASSANDRA-14170)
  * RateBasedBackPressure unnecessarily invokes a lock on the Guava RateLimiter 
(CASSANDRA-14163)

http://git-wip-us.apache.org/repos/asf/cassandra/blob/29d6237a/src/java/org/apache/cassandra/locator/DynamicEndpointSnitch.java
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diff --git a/src/java/org/apache/cassandra/locator/DynamicEndpointSnitch.java 
b/src/java/org/apache/cassandra/locator/DynamicEndpointSnitch.java
index 42fc26c..dce25ee 100644
--- a/src/java/org/apache/cassandra/locator/DynamicEndpointSnitch.java
+++ b/src/java/org/apache/cassandra/locator/DynamicEndpointSnitch.java
@@ -234,7 +234,7 @@ public class DynamicEndpointSnitch extends 
AbstractEndpointSnitch implements ILa
         {
             Double score = scores.get(inet);
             if (score == null)
-                continue;
+                score = 0.0;
             subsnitchOrderedScores.add(score);
         }
 

http://git-wip-us.apache.org/repos/asf/cassandra/blob/29d6237a/test/unit/org/apache/cassandra/locator/DynamicEndpointSnitchTest.java
----------------------------------------------------------------------
diff --git 
a/test/unit/org/apache/cassandra/locator/DynamicEndpointSnitchTest.java 
b/test/unit/org/apache/cassandra/locator/DynamicEndpointSnitchTest.java
index 8a59a4a..051d2c2 100644
--- a/test/unit/org/apache/cassandra/locator/DynamicEndpointSnitchTest.java
+++ b/test/unit/org/apache/cassandra/locator/DynamicEndpointSnitchTest.java
@@ -101,7 +101,7 @@ public class DynamicEndpointSnitchTest
         assertEquals(order, dsnitch.getSortedListByProximity(self, 
Arrays.asList(host1, host2, host3, host4)));
 
         setScores(dsnitch, 20, hosts, 10, 10, 10);
-        order = Arrays.asList(host1, host2, host3, host4);
+        order = Arrays.asList(host4, host1, host2, host3);
         assertEquals(order, dsnitch.getSortedListByProximity(self, 
Arrays.asList(host1, host2, host3, host4)));
     }
 }


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