Fixing stylecheck problems with storm-perf

Project: http://git-wip-us.apache.org/repos/asf/storm/repo
Commit: http://git-wip-us.apache.org/repos/asf/storm/commit/0e409ecd
Tree: http://git-wip-us.apache.org/repos/asf/storm/tree/0e409ecd
Diff: http://git-wip-us.apache.org/repos/asf/storm/diff/0e409ecd

Branch: refs/heads/master
Commit: 0e409ecd8b2d6956ed38f78bb068ce8fef67e83b
Parents: f4ba7c9
Author: Kishor Patil <[email protected]>
Authored: Sun Apr 22 23:14:26 2018 -0400
Committer: Kishor Patil <[email protected]>
Committed: Mon Apr 23 02:32:40 2018 -0400

----------------------------------------------------------------------
 examples/storm-perf/pom.xml                     |  2 +-
 .../perf/ConstSpoutIdBoltNullBoltTopo.java      | 12 ++--
 .../storm/perf/ConstSpoutNullBoltTopo.java      |  4 +-
 .../storm/perf/FileReadWordCountTopo.java       | 33 +++++------
 .../storm/perf/HdfsSpoutNullBoltTopo.java       |  3 +-
 .../org/apache/storm/perf/JCQueuePerfTest.java  | 31 +++++-----
 .../org/apache/storm/perf/JCToolsPerfTest.java  | 27 ++++-----
 .../apache/storm/perf/KafkaClientHdfsTopo.java  |  8 +--
 .../perf/KafkaClientSpoutNullBoltTopo.java      | 15 ++---
 .../apache/storm/perf/LowThroughputTopo.java    |  9 ++-
 .../storm/perf/SimplifiedWordCountTopo.java     |  1 -
 .../storm/perf/StrGenSpoutHdfsBoltTopo.java     |  3 +-
 .../org/apache/storm/perf/ThroughputMeter.java  | 16 ++---
 .../org/apache/storm/perf/bolt/CountBolt.java   |  1 -
 .../org/apache/storm/perf/bolt/DevNullBolt.java |  1 -
 .../java/org/apache/storm/perf/bolt/IdBolt.java |  1 -
 .../storm/perf/bolt/SplitSentenceBolt.java      |  1 -
 .../org/apache/storm/perf/spout/ConstSpout.java |  1 -
 .../apache/storm/perf/spout/FileReadSpout.java  |  1 -
 .../apache/storm/perf/spout/StringGenSpout.java | 27 ++++-----
 .../apache/storm/perf/spout/WordGenSpout.java   | 62 ++++++++++----------
 .../storm/perf/utils/BasicMetricsCollector.java | 23 ++++----
 .../org/apache/storm/perf/utils/Helper.java     |  7 ++-
 .../apache/storm/perf/utils/IdentityBolt.java   |  3 +-
 .../apache/storm/perf/utils/MetricsSample.java  |  3 +-
 25 files changed, 139 insertions(+), 156 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/storm/blob/0e409ecd/examples/storm-perf/pom.xml
----------------------------------------------------------------------
diff --git a/examples/storm-perf/pom.xml b/examples/storm-perf/pom.xml
index f8eb965..4bbabfa3 100644
--- a/examples/storm-perf/pom.xml
+++ b/examples/storm-perf/pom.xml
@@ -95,7 +95,7 @@
                 <artifactId>maven-checkstyle-plugin</artifactId>
                 <!--Note - the version would be inherited-->
                 <configuration>
-                    <maxAllowedViolations>100</maxAllowedViolations>
+                    <maxAllowedViolations>65</maxAllowedViolations>
                 </configuration>
             </plugin>
         </plugins>

http://git-wip-us.apache.org/repos/asf/storm/blob/0e409ecd/examples/storm-perf/src/main/java/org/apache/storm/perf/ConstSpoutIdBoltNullBoltTopo.java
----------------------------------------------------------------------
diff --git 
a/examples/storm-perf/src/main/java/org/apache/storm/perf/ConstSpoutIdBoltNullBoltTopo.java
 
b/examples/storm-perf/src/main/java/org/apache/storm/perf/ConstSpoutIdBoltNullBoltTopo.java
index dc3649e..a65efe6 100644
--- 
a/examples/storm-perf/src/main/java/org/apache/storm/perf/ConstSpoutIdBoltNullBoltTopo.java
+++ 
b/examples/storm-perf/src/main/java/org/apache/storm/perf/ConstSpoutIdBoltNullBoltTopo.java
@@ -19,7 +19,6 @@
 package org.apache.storm.perf;
 
 import java.util.Map;
-
 import org.apache.storm.Config;
 import org.apache.storm.generated.StormTopology;
 import org.apache.storm.perf.bolt.DevNullBolt;
@@ -30,11 +29,8 @@ import org.apache.storm.topology.TopologyBuilder;
 import org.apache.storm.utils.Utils;
 
 /**
- * ConstSpout -> IdBolt -> DevNullBolt
- * This topology measures speed of messaging between spouts->bolt  and  
bolt->bolt
- * ConstSpout : Continuously emits a constant string
- * IdBolt : clones and emits input tuples
- * DevNullBolt : discards incoming tuples
+ * ConstSpout -> IdBolt -> DevNullBolt This topology measures speed of 
messaging between spouts->bolt  and  bolt->bolt ConstSpout :
+ * Continuously emits a constant string IdBolt : clones and emits input tuples 
DevNullBolt : discards incoming tuples
  */
 public class ConstSpoutIdBoltNullBoltTopo {
 
@@ -66,11 +62,11 @@ public class ConstSpoutIdBoltNullBoltTopo {
 
         int numBolt1 = Helper.getInt(conf, BOLT1_COUNT, 1);
         builder.setBolt(BOLT1_ID, bolt1, numBolt1)
-            .localOrShuffleGrouping(SPOUT_ID);
+               .localOrShuffleGrouping(SPOUT_ID);
 
         int numBolt2 = Helper.getInt(conf, BOLT2_COUNT, 1);
         builder.setBolt(BOLT2_ID, bolt2, numBolt2)
-            .localOrShuffleGrouping(BOLT1_ID);
+               .localOrShuffleGrouping(BOLT1_ID);
         System.err.printf("====> Using : numSpouts = %d , numBolt1 = %d, 
numBolt2=%d\n", numSpouts, numBolt1, numBolt2);
         return builder.createTopology();
     }

http://git-wip-us.apache.org/repos/asf/storm/blob/0e409ecd/examples/storm-perf/src/main/java/org/apache/storm/perf/ConstSpoutNullBoltTopo.java
----------------------------------------------------------------------
diff --git 
a/examples/storm-perf/src/main/java/org/apache/storm/perf/ConstSpoutNullBoltTopo.java
 
b/examples/storm-perf/src/main/java/org/apache/storm/perf/ConstSpoutNullBoltTopo.java
index ee778fb..9683e08 100755
--- 
a/examples/storm-perf/src/main/java/org/apache/storm/perf/ConstSpoutNullBoltTopo.java
+++ 
b/examples/storm-perf/src/main/java/org/apache/storm/perf/ConstSpoutNullBoltTopo.java
@@ -19,7 +19,6 @@
 package org.apache.storm.perf;
 
 import java.util.Map;
-
 import org.apache.storm.Config;
 import org.apache.storm.generated.StormTopology;
 import org.apache.storm.perf.bolt.DevNullBolt;
@@ -89,7 +88,8 @@ public class ConstSpoutNullBoltTopo {
         //  For reference : numbers taken on MacBook Pro mid 2015
         //    -- ACKer=0:  ~8 mill/sec (batchSz=2k & recvQsize=50k).  6.7 
mill/sec (batchSz=1 & recvQsize=1k)
         //    -- ACKer=1:  ~1 mill/sec,   lat= ~1 microsec  (batchSz=1 & 
bolt.wait.strategy=Park bolt.wait.park.micros=0)
-        //    -- ACKer=1:  ~1.3 mill/sec, lat= ~11 micros   (batchSz=1 & 
receive.buffer.size=1k, bolt.wait & bp.wait = Progressive[defaults])
+        //    -- ACKer=1:  ~1.3 mill/sec, lat= ~11 micros   (batchSz=1 & 
receive.buffer.size=1k, bolt.wait & bp.wait =
+        // Progressive[defaults])
         //    -- ACKer=1:  ~1.6 mill/sec, lat= ~300 micros  (batchSz=500 & 
bolt.wait.strategy=Park bolt.wait.park.micros=0)
         topoConf.put(Config.TOPOLOGY_SPOUT_RECVQ_SKIPS, 8);
         topoConf.put(Config.TOPOLOGY_PRODUCER_BATCH_SIZE, 500);

http://git-wip-us.apache.org/repos/asf/storm/blob/0e409ecd/examples/storm-perf/src/main/java/org/apache/storm/perf/FileReadWordCountTopo.java
----------------------------------------------------------------------
diff --git 
a/examples/storm-perf/src/main/java/org/apache/storm/perf/FileReadWordCountTopo.java
 
b/examples/storm-perf/src/main/java/org/apache/storm/perf/FileReadWordCountTopo.java
index 7e9256e..827337e 100644
--- 
a/examples/storm-perf/src/main/java/org/apache/storm/perf/FileReadWordCountTopo.java
+++ 
b/examples/storm-perf/src/main/java/org/apache/storm/perf/FileReadWordCountTopo.java
@@ -1,25 +1,24 @@
 /*
-* Licensed to the Apache Software Foundation (ASF) under one
-* or more contributor license agreements.  See the NOTICE file
-* distributed with this work for additional information
-* regarding copyright ownership.  The ASF licenses this file
-* to you under the Apache License, Version 2.0 (the
-* "License"); you may not use this file except in compliance
-* with the License.  You may obtain a copy of the License at
-*
-*     http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License
-*/
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License
+ */
 
 package org.apache.storm.perf;
 
 import java.util.Map;
-
 import org.apache.storm.Config;
 import org.apache.storm.generated.StormTopology;
 import org.apache.storm.perf.bolt.CountBolt;

http://git-wip-us.apache.org/repos/asf/storm/blob/0e409ecd/examples/storm-perf/src/main/java/org/apache/storm/perf/HdfsSpoutNullBoltTopo.java
----------------------------------------------------------------------
diff --git 
a/examples/storm-perf/src/main/java/org/apache/storm/perf/HdfsSpoutNullBoltTopo.java
 
b/examples/storm-perf/src/main/java/org/apache/storm/perf/HdfsSpoutNullBoltTopo.java
index e288a5c..4f97dfa 100644
--- 
a/examples/storm-perf/src/main/java/org/apache/storm/perf/HdfsSpoutNullBoltTopo.java
+++ 
b/examples/storm-perf/src/main/java/org/apache/storm/perf/HdfsSpoutNullBoltTopo.java
@@ -19,7 +19,6 @@
 package org.apache.storm.perf;
 
 import java.util.Map;
-
 import org.apache.storm.Config;
 import org.apache.storm.generated.StormTopology;
 import org.apache.storm.hdfs.spout.HdfsSpout;
@@ -78,7 +77,7 @@ public class HdfsSpoutNullBoltTopo {
         TopologyBuilder builder = new TopologyBuilder();
         builder.setSpout(SPOUT_ID, spout, spoutNum);
         builder.setBolt(BOLT_ID, bolt, boltNum)
-            .localOrShuffleGrouping(SPOUT_ID);
+               .localOrShuffleGrouping(SPOUT_ID);
 
         return builder.createTopology();
     }

http://git-wip-us.apache.org/repos/asf/storm/blob/0e409ecd/examples/storm-perf/src/main/java/org/apache/storm/perf/JCQueuePerfTest.java
----------------------------------------------------------------------
diff --git 
a/examples/storm-perf/src/main/java/org/apache/storm/perf/JCQueuePerfTest.java 
b/examples/storm-perf/src/main/java/org/apache/storm/perf/JCQueuePerfTest.java
index 700ce4e..f2bfd31 100644
--- 
a/examples/storm-perf/src/main/java/org/apache/storm/perf/JCQueuePerfTest.java
+++ 
b/examples/storm-perf/src/main/java/org/apache/storm/perf/JCQueuePerfTest.java
@@ -19,7 +19,6 @@
 package org.apache.storm.perf;
 
 import java.util.concurrent.locks.LockSupport;
-
 import org.apache.storm.policy.WaitStrategyPark;
 import org.apache.storm.utils.JCQueue;
 import org.apache.storm.utils.MutableLong;
@@ -28,15 +27,15 @@ public class JCQueuePerfTest {
     // Usage: Let it and then explicitly terminate.
     // Metrics will be printed when application is terminated.
     public static void main(String[] args) throws Exception {
-//        oneProducer1Consumer(1000);  // -- measurement 1
-//        twoProducer1Consumer(1000);    // -- measurement 2
-//        threeProducer1Consumer(1);   // -- measurement 3
+        //        oneProducer1Consumer(1000);  // -- measurement 1
+        //        twoProducer1Consumer(1000);    // -- measurement 2
+        //        threeProducer1Consumer(1);   // -- measurement 3
 
-//        oneProducer2Consumers();     // -- measurement 4
+        //        oneProducer2Consumers();     // -- measurement 4
 
-//        producerFwdConsumer();      // -- measurement 5
+        //        producerFwdConsumer();      // -- measurement 5
 
-//        ackingProducerSimulation(); // -- measurement 6
+        //        ackingProducerSimulation(); // -- measurement 6
 
         while (true) {
             Thread.sleep(1000);
@@ -46,8 +45,8 @@ public class JCQueuePerfTest {
 
     private static void ackingProducerSimulation() {
         WaitStrategyPark ws = new WaitStrategyPark(100);
-        JCQueue spoutQ = new JCQueue("spoutQ", 1024, 0, 100, ws, "test", 
"test",1000, 1000);
-        JCQueue ackQ = new JCQueue("ackQ", 1024, 0, 100, ws, "test", 
"test",1000, 1000);
+        JCQueue spoutQ = new JCQueue("spoutQ", 1024, 0, 100, ws, "test", 
"test", 1000, 1000);
+        JCQueue ackQ = new JCQueue("ackQ", 1024, 0, 100, ws, "test", "test", 
1000, 1000);
 
         final AckingProducer ackingProducer = new AckingProducer(spoutQ, ackQ);
         final Acker acker = new Acker(ackQ, spoutQ);
@@ -57,8 +56,8 @@ public class JCQueuePerfTest {
 
     private static void producerFwdConsumer(int prodBatchSz) {
         WaitStrategyPark ws = new WaitStrategyPark(100);
-        JCQueue q1 = new JCQueue("q1", 1024, 0, prodBatchSz, ws, "test", 
"test",1000, 1000);
-        JCQueue q2 = new JCQueue("q2", 1024, 0, prodBatchSz, ws, "test", 
"test",1000, 1000);
+        JCQueue q1 = new JCQueue("q1", 1024, 0, prodBatchSz, ws, "test", 
"test", 1000, 1000);
+        JCQueue q2 = new JCQueue("q2", 1024, 0, prodBatchSz, ws, "test", 
"test", 1000, 1000);
 
         final Producer prod = new Producer(q1);
         final Forwarder fwd = new Forwarder(q1, q2);
@@ -69,7 +68,7 @@ public class JCQueuePerfTest {
 
 
     private static void oneProducer1Consumer(int prodBatchSz) {
-        JCQueue q1 = new JCQueue("q1", 50_000, 0, prodBatchSz, new 
WaitStrategyPark(100), "test", "test",1000, 1000);
+        JCQueue q1 = new JCQueue("q1", 50_000, 0, prodBatchSz, new 
WaitStrategyPark(100), "test", "test", 1000, 1000);
 
         final Producer prod1 = new Producer(q1);
         final Consumer cons1 = new Consumer(q1);
@@ -78,7 +77,7 @@ public class JCQueuePerfTest {
     }
 
     private static void twoProducer1Consumer(int prodBatchSz) {
-        JCQueue q1 = new JCQueue("q1", 50_000, 0, prodBatchSz, new 
WaitStrategyPark(100), "test", "test",1000, 1000);
+        JCQueue q1 = new JCQueue("q1", 50_000, 0, prodBatchSz, new 
WaitStrategyPark(100), "test", "test", 1000, 1000);
 
         final Producer prod1 = new Producer(q1);
         final Producer prod2 = new Producer(q1);
@@ -88,7 +87,7 @@ public class JCQueuePerfTest {
     }
 
     private static void threeProducer1Consumer(int prodBatchSz) {
-        JCQueue q1 = new JCQueue("q1", 50_000, 0, prodBatchSz, new 
WaitStrategyPark(100), "test", "test",1000, 1000);
+        JCQueue q1 = new JCQueue("q1", 50_000, 0, prodBatchSz, new 
WaitStrategyPark(100), "test", "test", 1000, 1000);
 
         final Producer prod1 = new Producer(q1);
         final Producer prod2 = new Producer(q1);
@@ -101,8 +100,8 @@ public class JCQueuePerfTest {
 
     private static void oneProducer2Consumers(int prodBatchSz) {
         WaitStrategyPark ws = new WaitStrategyPark(100);
-        JCQueue q1 = new JCQueue("q1", 1024, 0, prodBatchSz, ws, "test", 
"test",1000, 1000);
-        JCQueue q2 = new JCQueue("q2", 1024, 0, prodBatchSz, ws, "test", 
"test",1000, 1000);
+        JCQueue q1 = new JCQueue("q1", 1024, 0, prodBatchSz, ws, "test", 
"test", 1000, 1000);
+        JCQueue q2 = new JCQueue("q2", 1024, 0, prodBatchSz, ws, "test", 
"test", 1000, 1000);
 
         final Producer2 prod1 = new Producer2(q1, q2);
         final Consumer cons1 = new Consumer(q1);

http://git-wip-us.apache.org/repos/asf/storm/blob/0e409ecd/examples/storm-perf/src/main/java/org/apache/storm/perf/JCToolsPerfTest.java
----------------------------------------------------------------------
diff --git 
a/examples/storm-perf/src/main/java/org/apache/storm/perf/JCToolsPerfTest.java 
b/examples/storm-perf/src/main/java/org/apache/storm/perf/JCToolsPerfTest.java
index 98525ed..a439522 100644
--- 
a/examples/storm-perf/src/main/java/org/apache/storm/perf/JCToolsPerfTest.java
+++ 
b/examples/storm-perf/src/main/java/org/apache/storm/perf/JCToolsPerfTest.java
@@ -19,25 +19,24 @@
 package org.apache.storm.perf;
 
 import java.util.concurrent.locks.LockSupport;
-
 import org.apache.storm.utils.MutableLong;
 import org.jctools.queues.MpscArrayQueue;
 
 public class JCToolsPerfTest {
     public static void main(String[] args) throws Exception {
-//        oneProducer1Consumer();
-//        twoProducer1Consumer();
-//        threeProducer1Consumer();
-//        oneProducer2Consumers();
-//        producerFwdConsumer();
-
-//        JCQueue spoutQ = new JCQueue("spoutQ", 1024, 100, 0);
-//        JCQueue ackQ = new JCQueue("ackQ", 1024, 100, 0);
-//
-//        final AckingProducer ackingProducer = new AckingProducer(spoutQ, 
ackQ);
-//        final Acker acker = new Acker(ackQ, spoutQ);
-//
-//        runAllThds(ackingProducer, acker);
+        //        oneProducer1Consumer();
+        //        twoProducer1Consumer();
+        //        threeProducer1Consumer();
+        //        oneProducer2Consumers();
+        //        producerFwdConsumer();
+
+        //        JCQueue spoutQ = new JCQueue("spoutQ", 1024, 100, 0);
+        //        JCQueue ackQ = new JCQueue("ackQ", 1024, 100, 0);
+        //
+        //        final AckingProducer ackingProducer = new 
AckingProducer(spoutQ, ackQ);
+        //        final Acker acker = new Acker(ackQ, spoutQ);
+        //
+        //        runAllThds(ackingProducer, acker);
 
         while (true) {
             Thread.sleep(1000);

http://git-wip-us.apache.org/repos/asf/storm/blob/0e409ecd/examples/storm-perf/src/main/java/org/apache/storm/perf/KafkaClientHdfsTopo.java
----------------------------------------------------------------------
diff --git 
a/examples/storm-perf/src/main/java/org/apache/storm/perf/KafkaClientHdfsTopo.java
 
b/examples/storm-perf/src/main/java/org/apache/storm/perf/KafkaClientHdfsTopo.java
index 0432d9e..67117e4 100755
--- 
a/examples/storm-perf/src/main/java/org/apache/storm/perf/KafkaClientHdfsTopo.java
+++ 
b/examples/storm-perf/src/main/java/org/apache/storm/perf/KafkaClientHdfsTopo.java
@@ -19,7 +19,6 @@
 package org.apache.storm.perf;
 
 import java.util.Map;
-
 import org.apache.storm.Config;
 import org.apache.storm.generated.StormTopology;
 import org.apache.storm.hdfs.bolt.HdfsBolt;
@@ -80,8 +79,9 @@ public class KafkaClientHdfsTopo {
         String topicName = getStr(config, KAFKA_TOPIC);
 
         KafkaSpoutConfig<String, String> spoutConfig = 
KafkaSpoutConfig.builder(bootstrapHosts, topicName)
-            
.setFirstPollOffsetStrategy(KafkaSpoutConfig.FirstPollOffsetStrategy.EARLIEST)
-            .build();
+                                                                       
.setFirstPollOffsetStrategy(
+                                                                           
KafkaSpoutConfig.FirstPollOffsetStrategy.EARLIEST)
+                                                                       
.build();
 
         KafkaSpout<String, String> spout = new KafkaSpout<>(spoutConfig);
 
@@ -106,7 +106,7 @@ public class KafkaClientHdfsTopo {
         TopologyBuilder builder = new TopologyBuilder();
         builder.setSpout(SPOUT_ID, spout, spoutNum);
         builder.setBolt(BOLT_ID, bolt, boltNum)
-            .localOrShuffleGrouping(SPOUT_ID);
+               .localOrShuffleGrouping(SPOUT_ID);
 
         return builder.createTopology();
     }

http://git-wip-us.apache.org/repos/asf/storm/blob/0e409ecd/examples/storm-perf/src/main/java/org/apache/storm/perf/KafkaClientSpoutNullBoltTopo.java
----------------------------------------------------------------------
diff --git 
a/examples/storm-perf/src/main/java/org/apache/storm/perf/KafkaClientSpoutNullBoltTopo.java
 
b/examples/storm-perf/src/main/java/org/apache/storm/perf/KafkaClientSpoutNullBoltTopo.java
index 4d88702..a75785d 100644
--- 
a/examples/storm-perf/src/main/java/org/apache/storm/perf/KafkaClientSpoutNullBoltTopo.java
+++ 
b/examples/storm-perf/src/main/java/org/apache/storm/perf/KafkaClientSpoutNullBoltTopo.java
@@ -65,15 +65,16 @@ public class KafkaClientSpoutNullBoltTopo {
         String kafkaTopic = Optional.ofNullable(Helper.getStr(config, 
KAFKA_TOPIC)).orElse("storm-perf-null-bolt-topic");
         ProcessingGuarantee processingGuarantee = ProcessingGuarantee.valueOf(
             Optional.ofNullable(Helper.getStr(config, PROCESSING_GUARANTEE))
-                .orElse(ProcessingGuarantee.AT_LEAST_ONCE.name()));
+                    .orElse(ProcessingGuarantee.AT_LEAST_ONCE.name()));
         int offsetCommitPeriodMs = Helper.getInt(config, 
OFFSET_COMMIT_PERIOD_MS, 30_000);
 
         KafkaSpoutConfig<String, String> kafkaSpoutConfig = 
KafkaSpoutConfig.builder(bootstrapServers, kafkaTopic)
-            .setProcessingGuarantee(processingGuarantee)
-            .setOffsetCommitPeriodMs(offsetCommitPeriodMs)
-            
.setFirstPollOffsetStrategy(KafkaSpoutConfig.FirstPollOffsetStrategy.EARLIEST)
-            .setTupleTrackingEnforced(true)
-            .build();
+                                                                            
.setProcessingGuarantee(processingGuarantee)
+                                                                            
.setOffsetCommitPeriodMs(offsetCommitPeriodMs)
+                                                                            
.setFirstPollOffsetStrategy(
+                                                                               
 KafkaSpoutConfig.FirstPollOffsetStrategy.EARLIEST)
+                                                                            
.setTupleTrackingEnforced(true)
+                                                                            
.build();
 
         KafkaSpout<String, String> spout = new KafkaSpout<>(kafkaSpoutConfig);
 
@@ -84,7 +85,7 @@ public class KafkaClientSpoutNullBoltTopo {
         TopologyBuilder builder = new TopologyBuilder();
         builder.setSpout(SPOUT_ID, spout, spoutNum);
         builder.setBolt(BOLT_ID, bolt, boltNum)
-            .localOrShuffleGrouping(SPOUT_ID);
+               .localOrShuffleGrouping(SPOUT_ID);
 
         return builder.createTopology();
     }

http://git-wip-us.apache.org/repos/asf/storm/blob/0e409ecd/examples/storm-perf/src/main/java/org/apache/storm/perf/LowThroughputTopo.java
----------------------------------------------------------------------
diff --git 
a/examples/storm-perf/src/main/java/org/apache/storm/perf/LowThroughputTopo.java
 
b/examples/storm-perf/src/main/java/org/apache/storm/perf/LowThroughputTopo.java
index 5560780..e4972a4 100644
--- 
a/examples/storm-perf/src/main/java/org/apache/storm/perf/LowThroughputTopo.java
+++ 
b/examples/storm-perf/src/main/java/org/apache/storm/perf/LowThroughputTopo.java
@@ -22,7 +22,6 @@ package org.apache.storm.perf;
 import java.util.Collections;
 import java.util.List;
 import java.util.Map;
-
 import org.apache.storm.Config;
 import org.apache.storm.generated.StormTopology;
 import org.apache.storm.perf.utils.Helper;
@@ -64,7 +63,7 @@ public class LowThroughputTopo {
         BoltDeclarer bd = builder.setBolt(BOLT_ID, bolt, Helper.getInt(conf, 
BOLT_COUNT, 1));
 
         bd.localOrShuffleGrouping(SPOUT_ID);
-//        bd.shuffleGrouping(SPOUT_ID);
+        //        bd.shuffleGrouping(SPOUT_ID);
         return builder.createTopology();
     }
 
@@ -111,7 +110,7 @@ public class LowThroughputTopo {
 
         @Override
         public void open(Map<String, Object> conf, TopologyContext context,
-                SpoutOutputCollector collector) {
+                         SpoutOutputCollector collector) {
             this.collector = collector;
         }
 
@@ -135,8 +134,8 @@ public class LowThroughputTopo {
 
         @Override
         public void prepare(Map<String, Object> topoConf,
-                TopologyContext context,
-                OutputCollector collector) {
+                            TopologyContext context,
+                            OutputCollector collector) {
             this.collector = collector;
         }
 

http://git-wip-us.apache.org/repos/asf/storm/blob/0e409ecd/examples/storm-perf/src/main/java/org/apache/storm/perf/SimplifiedWordCountTopo.java
----------------------------------------------------------------------
diff --git 
a/examples/storm-perf/src/main/java/org/apache/storm/perf/SimplifiedWordCountTopo.java
 
b/examples/storm-perf/src/main/java/org/apache/storm/perf/SimplifiedWordCountTopo.java
index ea5be88..0a9148c 100644
--- 
a/examples/storm-perf/src/main/java/org/apache/storm/perf/SimplifiedWordCountTopo.java
+++ 
b/examples/storm-perf/src/main/java/org/apache/storm/perf/SimplifiedWordCountTopo.java
@@ -19,7 +19,6 @@
 package org.apache.storm.perf;
 
 import java.util.Map;
-
 import org.apache.storm.Config;
 import org.apache.storm.generated.StormTopology;
 import org.apache.storm.perf.bolt.CountBolt;

http://git-wip-us.apache.org/repos/asf/storm/blob/0e409ecd/examples/storm-perf/src/main/java/org/apache/storm/perf/StrGenSpoutHdfsBoltTopo.java
----------------------------------------------------------------------
diff --git 
a/examples/storm-perf/src/main/java/org/apache/storm/perf/StrGenSpoutHdfsBoltTopo.java
 
b/examples/storm-perf/src/main/java/org/apache/storm/perf/StrGenSpoutHdfsBoltTopo.java
index a3650c6..110bf79 100755
--- 
a/examples/storm-perf/src/main/java/org/apache/storm/perf/StrGenSpoutHdfsBoltTopo.java
+++ 
b/examples/storm-perf/src/main/java/org/apache/storm/perf/StrGenSpoutHdfsBoltTopo.java
@@ -20,7 +20,6 @@
 package org.apache.storm.perf;
 
 import java.util.Map;
-
 import org.apache.storm.Config;
 import org.apache.storm.generated.StormTopology;
 import org.apache.storm.hdfs.bolt.HdfsBolt;
@@ -96,7 +95,7 @@ public class StrGenSpoutHdfsBoltTopo {
         TopologyBuilder builder = new TopologyBuilder();
         builder.setSpout(SPOUT_ID, spout, spoutNum);
         builder.setBolt(BOLT_ID, bolt, boltNum)
-            .localOrShuffleGrouping(SPOUT_ID);
+               .localOrShuffleGrouping(SPOUT_ID);
 
         return builder.createTopology();
     }

http://git-wip-us.apache.org/repos/asf/storm/blob/0e409ecd/examples/storm-perf/src/main/java/org/apache/storm/perf/ThroughputMeter.java
----------------------------------------------------------------------
diff --git 
a/examples/storm-perf/src/main/java/org/apache/storm/perf/ThroughputMeter.java 
b/examples/storm-perf/src/main/java/org/apache/storm/perf/ThroughputMeter.java
index 09aec7d..bd5d1e1 100644
--- 
a/examples/storm-perf/src/main/java/org/apache/storm/perf/ThroughputMeter.java
+++ 
b/examples/storm-perf/src/main/java/org/apache/storm/perf/ThroughputMeter.java
@@ -30,6 +30,14 @@ public class ThroughputMeter {
         this.startTime = System.currentTimeMillis();
     }
 
+    /**
+     * @return events/sec
+     */
+    private static double calcThroughput(long count, long startTime, long 
endTime) {
+        long gap = (endTime - startTime);
+        return (count / gap) * 1000;
+    }
+
     public String getName() {
         return name;
     }
@@ -61,12 +69,4 @@ public class ThroughputMeter {
         count = 0;
         return result;
     }
-
-    /**
-     * @return events/sec
-     */
-    private static double calcThroughput(long count, long startTime, long 
endTime) {
-        long gap = (endTime - startTime);
-        return (count / gap) * 1000;
-    }
 }

http://git-wip-us.apache.org/repos/asf/storm/blob/0e409ecd/examples/storm-perf/src/main/java/org/apache/storm/perf/bolt/CountBolt.java
----------------------------------------------------------------------
diff --git 
a/examples/storm-perf/src/main/java/org/apache/storm/perf/bolt/CountBolt.java 
b/examples/storm-perf/src/main/java/org/apache/storm/perf/bolt/CountBolt.java
index 368699b..ee1bf7e 100644
--- 
a/examples/storm-perf/src/main/java/org/apache/storm/perf/bolt/CountBolt.java
+++ 
b/examples/storm-perf/src/main/java/org/apache/storm/perf/bolt/CountBolt.java
@@ -20,7 +20,6 @@ package org.apache.storm.perf.bolt;
 
 import java.util.HashMap;
 import java.util.Map;
-
 import org.apache.storm.task.TopologyContext;
 import org.apache.storm.topology.BasicOutputCollector;
 import org.apache.storm.topology.OutputFieldsDeclarer;

http://git-wip-us.apache.org/repos/asf/storm/blob/0e409ecd/examples/storm-perf/src/main/java/org/apache/storm/perf/bolt/DevNullBolt.java
----------------------------------------------------------------------
diff --git 
a/examples/storm-perf/src/main/java/org/apache/storm/perf/bolt/DevNullBolt.java 
b/examples/storm-perf/src/main/java/org/apache/storm/perf/bolt/DevNullBolt.java
index 5f9c710..abb397d 100755
--- 
a/examples/storm-perf/src/main/java/org/apache/storm/perf/bolt/DevNullBolt.java
+++ 
b/examples/storm-perf/src/main/java/org/apache/storm/perf/bolt/DevNullBolt.java
@@ -20,7 +20,6 @@ package org.apache.storm.perf.bolt;
 
 import java.util.Map;
 import java.util.concurrent.locks.LockSupport;
-
 import org.apache.storm.task.OutputCollector;
 import org.apache.storm.task.TopologyContext;
 import org.apache.storm.topology.OutputFieldsDeclarer;

http://git-wip-us.apache.org/repos/asf/storm/blob/0e409ecd/examples/storm-perf/src/main/java/org/apache/storm/perf/bolt/IdBolt.java
----------------------------------------------------------------------
diff --git 
a/examples/storm-perf/src/main/java/org/apache/storm/perf/bolt/IdBolt.java 
b/examples/storm-perf/src/main/java/org/apache/storm/perf/bolt/IdBolt.java
index 0644e31..5387499 100644
--- a/examples/storm-perf/src/main/java/org/apache/storm/perf/bolt/IdBolt.java
+++ b/examples/storm-perf/src/main/java/org/apache/storm/perf/bolt/IdBolt.java
@@ -19,7 +19,6 @@
 package org.apache.storm.perf.bolt;
 
 import java.util.Map;
-
 import org.apache.storm.task.OutputCollector;
 import org.apache.storm.task.TopologyContext;
 import org.apache.storm.topology.OutputFieldsDeclarer;

http://git-wip-us.apache.org/repos/asf/storm/blob/0e409ecd/examples/storm-perf/src/main/java/org/apache/storm/perf/bolt/SplitSentenceBolt.java
----------------------------------------------------------------------
diff --git 
a/examples/storm-perf/src/main/java/org/apache/storm/perf/bolt/SplitSentenceBolt.java
 
b/examples/storm-perf/src/main/java/org/apache/storm/perf/bolt/SplitSentenceBolt.java
index abb5af8..85a3f5a 100644
--- 
a/examples/storm-perf/src/main/java/org/apache/storm/perf/bolt/SplitSentenceBolt.java
+++ 
b/examples/storm-perf/src/main/java/org/apache/storm/perf/bolt/SplitSentenceBolt.java
@@ -19,7 +19,6 @@
 package org.apache.storm.perf.bolt;
 
 import java.util.Map;
-
 import org.apache.storm.task.TopologyContext;
 import org.apache.storm.topology.BasicOutputCollector;
 import org.apache.storm.topology.OutputFieldsDeclarer;

http://git-wip-us.apache.org/repos/asf/storm/blob/0e409ecd/examples/storm-perf/src/main/java/org/apache/storm/perf/spout/ConstSpout.java
----------------------------------------------------------------------
diff --git 
a/examples/storm-perf/src/main/java/org/apache/storm/perf/spout/ConstSpout.java 
b/examples/storm-perf/src/main/java/org/apache/storm/perf/spout/ConstSpout.java
index 46f12ab..656f992 100755
--- 
a/examples/storm-perf/src/main/java/org/apache/storm/perf/spout/ConstSpout.java
+++ 
b/examples/storm-perf/src/main/java/org/apache/storm/perf/spout/ConstSpout.java
@@ -20,7 +20,6 @@ package org.apache.storm.perf.spout;
 
 import java.util.ArrayList;
 import java.util.Map;
-
 import org.apache.storm.spout.SpoutOutputCollector;
 import org.apache.storm.task.TopologyContext;
 import org.apache.storm.topology.OutputFieldsDeclarer;

http://git-wip-us.apache.org/repos/asf/storm/blob/0e409ecd/examples/storm-perf/src/main/java/org/apache/storm/perf/spout/FileReadSpout.java
----------------------------------------------------------------------
diff --git 
a/examples/storm-perf/src/main/java/org/apache/storm/perf/spout/FileReadSpout.java
 
b/examples/storm-perf/src/main/java/org/apache/storm/perf/spout/FileReadSpout.java
index 4f27d3b..a819fa2 100644
--- 
a/examples/storm-perf/src/main/java/org/apache/storm/perf/spout/FileReadSpout.java
+++ 
b/examples/storm-perf/src/main/java/org/apache/storm/perf/spout/FileReadSpout.java
@@ -27,7 +27,6 @@ import java.io.Serializable;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.Map;
-
 import org.apache.storm.spout.SpoutOutputCollector;
 import org.apache.storm.task.TopologyContext;
 import org.apache.storm.topology.OutputFieldsDeclarer;

http://git-wip-us.apache.org/repos/asf/storm/blob/0e409ecd/examples/storm-perf/src/main/java/org/apache/storm/perf/spout/StringGenSpout.java
----------------------------------------------------------------------
diff --git 
a/examples/storm-perf/src/main/java/org/apache/storm/perf/spout/StringGenSpout.java
 
b/examples/storm-perf/src/main/java/org/apache/storm/perf/spout/StringGenSpout.java
index 530f7b6..01964ea 100755
--- 
a/examples/storm-perf/src/main/java/org/apache/storm/perf/spout/StringGenSpout.java
+++ 
b/examples/storm-perf/src/main/java/org/apache/storm/perf/spout/StringGenSpout.java
@@ -22,7 +22,6 @@ import java.util.ArrayList;
 import java.util.Collections;
 import java.util.List;
 import java.util.Map;
-
 import org.apache.commons.lang.RandomStringUtils;
 import org.apache.storm.spout.SpoutOutputCollector;
 import org.apache.storm.task.TopologyContext;
@@ -30,18 +29,18 @@ import org.apache.storm.topology.OutputFieldsDeclarer;
 import org.apache.storm.topology.base.BaseRichSpout;
 import org.apache.storm.tuple.Fields;
 
-/** Spout pre-computes a list with 30k fixed length random strings.
- *  Emits sequentially from this list, over and over again.
+/**
+ * Spout pre-computes a list with 30k fixed length random strings. Emits 
sequentially from this list, over and over again.
  */
 
 public class StringGenSpout extends BaseRichSpout {
 
     private static final String DEFAULT_FIELD_NAME = "str";
-    private int strLen;
     private final int strCount = 30_000;
+    ArrayList<String> records;
+    private int strLen;
     private String fieldName = DEFAULT_FIELD_NAME;
     private SpoutOutputCollector collector = null;
-    ArrayList<String> records;
     private int curr = 0;
     private int count = 0;
 
@@ -49,6 +48,14 @@ public class StringGenSpout extends BaseRichSpout {
         this.strLen = strLen;
     }
 
+    private static ArrayList<String> genStringList(int strLen, int count) {
+        ArrayList<String> result = new ArrayList<String>(count);
+        for (int i = 0; i < count; i++) {
+            result.add(RandomStringUtils.random(strLen));
+        }
+        return result;
+    }
+
     public StringGenSpout withFieldName(String fieldName) {
         this.fieldName = fieldName;
         return this;
@@ -66,18 +73,10 @@ public class StringGenSpout extends BaseRichSpout {
         this.collector = collector;
     }
 
-    private static ArrayList<String> genStringList(int strLen, int count) {
-        ArrayList<String> result = new ArrayList<String>(count);
-        for (int i = 0; i < count; i++) {
-            result.add( RandomStringUtils.random(strLen) );
-        }
-        return result;
-    }
-
     @Override
     public void nextTuple() {
         List<Object> tuple;
-        if(curr < strCount) {
+        if (curr < strCount) {
             tuple = Collections.singletonList((Object) records.get(curr));
             ++curr;
             collector.emit(tuple, ++count);

http://git-wip-us.apache.org/repos/asf/storm/blob/0e409ecd/examples/storm-perf/src/main/java/org/apache/storm/perf/spout/WordGenSpout.java
----------------------------------------------------------------------
diff --git 
a/examples/storm-perf/src/main/java/org/apache/storm/perf/spout/WordGenSpout.java
 
b/examples/storm-perf/src/main/java/org/apache/storm/perf/spout/WordGenSpout.java
index b3195c1..f46d6f3 100644
--- 
a/examples/storm-perf/src/main/java/org/apache/storm/perf/spout/WordGenSpout.java
+++ 
b/examples/storm-perf/src/main/java/org/apache/storm/perf/spout/WordGenSpout.java
@@ -24,7 +24,7 @@ import java.io.IOException;
 import java.io.InputStreamReader;
 import java.util.ArrayList;
 import java.util.Map;
-
+import org.apache.storm.perf.ThroughputMeter;
 import org.apache.storm.perf.utils.Helper;
 import org.apache.storm.spout.SpoutOutputCollector;
 import org.apache.storm.task.TopologyContext;
@@ -32,7 +32,6 @@ import org.apache.storm.topology.OutputFieldsDeclarer;
 import org.apache.storm.topology.base.BaseRichSpout;
 import org.apache.storm.tuple.Fields;
 import org.apache.storm.tuple.Values;
-import org.apache.storm.perf.ThroughputMeter;
 
 public class WordGenSpout extends BaseRichSpout {
     public static final String FIELDS = "word";
@@ -51,10 +50,37 @@ public class WordGenSpout extends BaseRichSpout {
         this.file = file;
     }
 
+    /**
+     * Reads text file and extracts words from each line.
+     *
+     * @return a list of all (non-unique) words
+     */
+    public static ArrayList<String> readWords(String file) {
+        ArrayList<String> lines = new ArrayList<>();
+        try {
+            FileInputStream input = new FileInputStream(file);
+            BufferedReader reader = new BufferedReader(new 
InputStreamReader(input));
+            try {
+                String line;
+                while ((line = reader.readLine()) != null) {
+                    for (String word : line.split("\\s+"))
+                        lines.add(word);
+                }
+            } catch (IOException e) {
+                throw new RuntimeException("Reading file failed", e);
+            } finally {
+                reader.close();
+            }
+        } catch (IOException e) {
+            throw new RuntimeException("Error closing reader", e);
+        }
+        return lines;
+    }
+
     @Override
     public void open(Map<String, Object> conf,
-            TopologyContext context,
-            SpoutOutputCollector collector) {
+                     TopologyContext context,
+                     SpoutOutputCollector collector) {
         this.collector = collector;
         Integer ackers = Helper.getInt(conf, "topology.acker.executors", 0);
         if (ackers.equals(0)) {
@@ -67,7 +93,7 @@ public class WordGenSpout extends BaseRichSpout {
 
     @Override
     public void nextTuple() {
-        index = (index < words.size()-1) ? index+1 : 0;
+        index = (index < words.size() - 1) ? index + 1 : 0;
         String word = words.get(index);
         if (ackEnabled) {
             collector.emit(new Values(word), count);
@@ -84,30 +110,4 @@ public class WordGenSpout extends BaseRichSpout {
         declarer.declare(new Fields(FIELDS));
     }
 
-    /**
-     * Reads text file and extracts words from each line.
-     * @return a list of all (non-unique) words
-     */
-    public static ArrayList<String> readWords(String file)  {
-        ArrayList<String> lines = new ArrayList<>();
-        try {
-            FileInputStream input = new FileInputStream(file);
-            BufferedReader reader = new BufferedReader(new 
InputStreamReader(input));
-            try {
-                String line;
-                while ((line = reader.readLine()) != null) {
-                    for (String word : line.split("\\s+"))
-                        lines.add(word);
-                }
-            } catch (IOException e) {
-                throw new RuntimeException("Reading file failed", e);
-            } finally {
-                reader.close();
-            }
-        } catch (IOException e) {
-            throw new RuntimeException("Error closing reader", e);
-        }
-        return lines;
-    }
-
 }

http://git-wip-us.apache.org/repos/asf/storm/blob/0e409ecd/examples/storm-perf/src/main/java/org/apache/storm/perf/utils/BasicMetricsCollector.java
----------------------------------------------------------------------
diff --git 
a/examples/storm-perf/src/main/java/org/apache/storm/perf/utils/BasicMetricsCollector.java
 
b/examples/storm-perf/src/main/java/org/apache/storm/perf/utils/BasicMetricsCollector.java
index 7cfd354..735abe0 100755
--- 
a/examples/storm-perf/src/main/java/org/apache/storm/perf/utils/BasicMetricsCollector.java
+++ 
b/examples/storm-perf/src/main/java/org/apache/storm/perf/utils/BasicMetricsCollector.java
@@ -26,7 +26,6 @@ import java.util.LinkedList;
 import java.util.List;
 import java.util.Map;
 import java.util.Set;
-
 import org.apache.log4j.Logger;
 import org.apache.storm.generated.Nimbus;
 import org.apache.storm.utils.Utils;
@@ -160,9 +159,9 @@ public class BasicMetricsCollector implements AutoCloseable 
{
                 this.maxLatency = latency;
             }
             metrics.put(SPOUT_AVG_COMPLETE_LATENCY,
-                String.format(SPOUT_AVG_LATENCY_FORMAT, latency));
+                        String.format(SPOUT_AVG_LATENCY_FORMAT, latency));
             metrics.put(SPOUT_MAX_COMPLETE_LATENCY,
-                String.format(SPOUT_MAX_LATENCY_FORMAT, this.maxLatency));
+                        String.format(SPOUT_MAX_LATENCY_FORMAT, 
this.maxLatency));
 
         }
     }
@@ -192,10 +191,12 @@ public class BasicMetricsCollector implements 
AutoCloseable {
             header.add(SPOUT_MAX_COMPLETE_LATENCY);
         }
 
-        
writer.println("\n------------------------------------------------------------------------------------------------------------------");
+        writer.println(
+            
"\n------------------------------------------------------------------------------------------------------------------");
         String str = Utils.join(header, ",");
         writer.println(str);
-        
writer.println("------------------------------------------------------------------------------------------------------------------");
+        writer
+            
.println("------------------------------------------------------------------------------------------------------------------");
         writer.flush();
     }
 
@@ -211,28 +212,28 @@ public class BasicMetricsCollector implements 
AutoCloseable {
 
     boolean collectTopologyStats(Set<MetricsItem> items) {
         return items.contains(MetricsItem.ALL)
-            || items.contains(MetricsItem.TOPOLOGY_STATS);
+               || items.contains(MetricsItem.TOPOLOGY_STATS);
     }
 
     boolean collectExecutorStats(Set<MetricsItem> items) {
         return items.contains(MetricsItem.ALL)
-            || items.contains(MetricsItem.XSFER_RATE)
-            || items.contains(MetricsItem.SPOUT_LATENCY);
+               || items.contains(MetricsItem.XSFER_RATE)
+               || items.contains(MetricsItem.SPOUT_LATENCY);
     }
 
     boolean collectThroughput(Set<MetricsItem> items) {
         return items.contains(MetricsItem.ALL)
-            || items.contains(MetricsItem.XSFER_RATE);
+               || items.contains(MetricsItem.XSFER_RATE);
     }
 
     boolean collectSpoutThroughput(Set<MetricsItem> items) {
         return items.contains(MetricsItem.ALL)
-            || items.contains(MetricsItem.SPOUT_THROUGHPUT);
+               || items.contains(MetricsItem.SPOUT_THROUGHPUT);
     }
 
     boolean collectSpoutLatency(Set<MetricsItem> items) {
         return items.contains(MetricsItem.ALL)
-            || items.contains(MetricsItem.SPOUT_LATENCY);
+               || items.contains(MetricsItem.SPOUT_LATENCY);
     }
 
     public enum MetricsItem {

http://git-wip-us.apache.org/repos/asf/storm/blob/0e409ecd/examples/storm-perf/src/main/java/org/apache/storm/perf/utils/Helper.java
----------------------------------------------------------------------
diff --git 
a/examples/storm-perf/src/main/java/org/apache/storm/perf/utils/Helper.java 
b/examples/storm-perf/src/main/java/org/apache/storm/perf/utils/Helper.java
index 4429f4c..a0f838e 100755
--- a/examples/storm-perf/src/main/java/org/apache/storm/perf/utils/Helper.java
+++ b/examples/storm-perf/src/main/java/org/apache/storm/perf/utils/Helper.java
@@ -19,7 +19,6 @@
 package org.apache.storm.perf.utils;
 
 import java.util.Map;
-
 import org.apache.storm.StormSubmitter;
 import org.apache.storm.generated.KillOptions;
 import org.apache.storm.generated.Nimbus;
@@ -68,7 +67,9 @@ public class Helper {
         }
     }
 
-    /** Kill topo on Ctrl-C */
+    /**
+     * Kill topo on Ctrl-C
+     */
     public static void setupShutdownHook(final String topoName) {
         Map<String, Object> clusterConf = Utils.readStormConfig();
         final Nimbus.Iface client = 
NimbusClient.getConfiguredClient(clusterConf).getClient();
@@ -86,7 +87,7 @@ public class Helper {
     }
 
     public static void runOnClusterAndPrintMetrics(int durationSec, String 
topoName, Map<String, Object> topoConf, StormTopology topology)
-             throws Exception {
+        throws Exception {
         // submit topology
         StormSubmitter.submitTopologyWithProgressBar(topoName, topoConf, 
topology);
         setupShutdownHook(topoName); // handle Ctrl-C

http://git-wip-us.apache.org/repos/asf/storm/blob/0e409ecd/examples/storm-perf/src/main/java/org/apache/storm/perf/utils/IdentityBolt.java
----------------------------------------------------------------------
diff --git 
a/examples/storm-perf/src/main/java/org/apache/storm/perf/utils/IdentityBolt.java
 
b/examples/storm-perf/src/main/java/org/apache/storm/perf/utils/IdentityBolt.java
index f950203..df27263 100755
--- 
a/examples/storm-perf/src/main/java/org/apache/storm/perf/utils/IdentityBolt.java
+++ 
b/examples/storm-perf/src/main/java/org/apache/storm/perf/utils/IdentityBolt.java
@@ -19,7 +19,6 @@
 package org.apache.storm.perf.utils;
 
 import java.util.Map;
-
 import org.apache.storm.task.OutputCollector;
 import org.apache.storm.task.TopologyContext;
 import org.apache.storm.topology.OutputFieldsDeclarer;
@@ -36,7 +35,7 @@ public class IdentityBolt extends BaseRichBolt {
 
     @Override
     public void execute(Tuple tuple) {
-        collector.emit(tuple, tuple.getValues() );
+        collector.emit(tuple, tuple.getValues());
         collector.ack(tuple);
     }
 

http://git-wip-us.apache.org/repos/asf/storm/blob/0e409ecd/examples/storm-perf/src/main/java/org/apache/storm/perf/utils/MetricsSample.java
----------------------------------------------------------------------
diff --git 
a/examples/storm-perf/src/main/java/org/apache/storm/perf/utils/MetricsSample.java
 
b/examples/storm-perf/src/main/java/org/apache/storm/perf/utils/MetricsSample.java
index f462bc7..b70d06a 100755
--- 
a/examples/storm-perf/src/main/java/org/apache/storm/perf/utils/MetricsSample.java
+++ 
b/examples/storm-perf/src/main/java/org/apache/storm/perf/utils/MetricsSample.java
@@ -20,7 +20,6 @@ package org.apache.storm.perf.utils;
 
 import java.util.List;
 import java.util.Map;
-
 import org.apache.storm.generated.ClusterSummary;
 import org.apache.storm.generated.ExecutorSpecificStats;
 import org.apache.storm.generated.ExecutorStats;
@@ -160,7 +159,7 @@ public class MetricsSample {
         ret.spoutEmitted = spoutEmitted;
         ret.spoutTransferred = spoutTransferred;
         ret.sampleTime = System.currentTimeMillis();
-//        ret.numSupervisors = clusterSummary.get_supervisors_size();
+        //        ret.numSupervisors = clusterSummary.get_supervisors_size();
         ret.numWorkers = 0;
         ret.numExecutors = 0;
         ret.numTasks = 0;

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