[SPARK-22030][CORE] GraphiteSink fails to re-connect to Graphite instances behind an ELB or any other auto-scaled LB

## What changes were proposed in this pull request?

Upgrade codahale metrics library so that Graphite constructor can re-resolve hosts behind a CNAME with re-tried DNS lookups. When Graphite is deployed behind an ELB, ELB may change IP addresses based on auto-scaling needs. Using current approach yields Graphite usage impossible, fixing for that use case

- Upgrade to codahale 3.1.5
- Use new Graphite(host, port) constructor instead of new Graphite(new InetSocketAddress(host, port)) constructor

## How was this patch tested?

The same logic is used for another project that is using the same configuration and code path, and graphite re-connect's behind ELB's are no longer an issue

This are proposed changes for codahale lib - dropwizard/metrics@v3.1.2...v3.1.5#diff-6916c85d2dd08d89fe771c952e3b8512R120. Specifically, https://github.com/dropwizard/metrics/blob/b4d246d34e8a059b047567848b3522567cbe6108/metrics-graphite/src/main/java/com/codahale/metrics/graphite/Graphite.java#L120

Please review http://spark.apache.org/contributing.html before opening a pull request.

Author: alexmnyc <[email protected]>

Closes apache#19210 from alexmnyc/patch-1.

Author: alexmnyc

core/src/main/scala/org/apache/spark/metrics/sink/GraphiteSink.scala

@@ -68,8 +68,8 @@ private[spark] class GraphiteSink(val property: Properties, val registry: Metric
   MetricsSystem.checkMinimalPollingPeriod(pollUnit, pollPeriod)
 
   val graphite = propertyToOption(GRAPHITE_KEY_PROTOCOL).map(_.toLowerCase(Locale.ROOT)) match {
-    case Some("udp") => new GraphiteUDP(new InetSocketAddress(host, port))
-    case Some("tcp") | None => new Graphite(new InetSocketAddress(host, port))
+    case Some("udp") => new GraphiteUDP(host, port)
+    case Some("tcp") | None => new Graphite(host, port)
     case Some(p) => throw new Exception(s"Invalid Graphite protocol: $p")
   }
 

dev/deps/spark-deps-hadoop-2.6

@@ -139,10 +139,10 @@ machinist_2.11-0.6.1.jar
 macro-compat_2.11-1.1.1.jar
 mail-1.4.7.jar
 mesos-1.3.0-shaded-protobuf.jar
-metrics-core-3.1.2.jar
-metrics-graphite-3.1.2.jar
-metrics-json-3.1.2.jar
-metrics-jvm-3.1.2.jar
+metrics-core-3.1.5.jar
+metrics-graphite-3.1.5.jar
+metrics-json-3.1.5.jar
+metrics-jvm-3.1.5.jar
 minlog-1.3.0.jar
 mx4j-3.0.2.jar
 netty-3.9.9.Final.jar

dev/deps/spark-deps-hadoop-2.7

@@ -140,10 +140,10 @@ machinist_2.11-0.6.1.jar
 macro-compat_2.11-1.1.1.jar
 mail-1.4.7.jar
 mesos-1.3.0-shaded-protobuf.jar
-metrics-core-3.1.2.jar
-metrics-graphite-3.1.2.jar
-metrics-json-3.1.2.jar
-metrics-jvm-3.1.2.jar
+metrics-core-3.1.5.jar
+metrics-graphite-3.1.5.jar
+metrics-json-3.1.5.jar
+metrics-jvm-3.1.5.jar
 minlog-1.3.0.jar
 mx4j-3.0.2.jar
 netty-3.9.9.Final.jar

pom.xml

@@ -138,7 +138,7 @@
     <chill.version>0.8.4</chill.version>
     <ivy.version>2.4.0</ivy.version>
     <oro.version>2.0.8</oro.version>
-    <codahale.metrics.version>3.1.2</codahale.metrics.version>
+    <codahale.metrics.version>3.1.5</codahale.metrics.version>
     <avro.version>1.7.7</avro.version>
     <avro.mapred.classifier>hadoop2</avro.mapred.classifier>
     <jets3t.version>0.9.3</jets3t.version>