HBASE-20601 Add multiPut support and other miscellaneous to PE

Project: http://git-wip-us.apache.org/repos/asf/hbase/repo
Commit: http://git-wip-us.apache.org/repos/asf/hbase/commit/f3d1c021
Tree: http://git-wip-us.apache.org/repos/asf/hbase/tree/f3d1c021
Diff: http://git-wip-us.apache.org/repos/asf/hbase/diff/f3d1c021

Branch: refs/heads/HBASE-19064
Commit: f3d1c021de2264301f68eadb9ef126ff83d7ef53
Parents: 4005a0c
Author: Allan Yang <allan...@apache.org>
Authored: Thu May 24 19:52:40 2018 +0800
Committer: Allan Yang <allan...@163.com>
Committed: Thu May 24 19:52:40 2018 +0800

----------------------------------------------------------------------
 .../hadoop/hbase/PerformanceEvaluation.java     | 344 +++++++++++--------
 .../hadoop/hbase/TestPerformanceEvaluation.java |  46 +++
 2 files changed, 250 insertions(+), 140 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/hbase/blob/f3d1c021/hbase-mapreduce/src/test/java/org/apache/hadoop/hbase/PerformanceEvaluation.java
----------------------------------------------------------------------
diff --git 
a/hbase-mapreduce/src/test/java/org/apache/hadoop/hbase/PerformanceEvaluation.java
 
b/hbase-mapreduce/src/test/java/org/apache/hadoop/hbase/PerformanceEvaluation.java
index 42acb5c..26ab88d 100644
--- 
a/hbase-mapreduce/src/test/java/org/apache/hadoop/hbase/PerformanceEvaluation.java
+++ 
b/hbase-mapreduce/src/test/java/org/apache/hadoop/hbase/PerformanceEvaluation.java
@@ -438,6 +438,17 @@ public class PerformanceEvaluation extends Configured 
implements Tool {
     return splits;
   }
 
+  static void setupConnectionCount(final TestOptions opts) {
+    if (opts.oneCon) {
+      opts.connCount = 1;
+    } else {
+      if (opts.connCount == -1) {
+        // set to thread number if connCount is not set
+        opts.connCount = opts.numClientThreads;
+      }
+    }
+  }
+
   /*
    * Run all clients in this vm each to its own thread.
    */
@@ -450,14 +461,23 @@ public class PerformanceEvaluation extends Configured 
implements Tool {
     RunResult[] results = new RunResult[opts.numClientThreads];
     ExecutorService pool = Executors.newFixedThreadPool(opts.numClientThreads,
       new ThreadFactoryBuilder().setNameFormat("TestClient-%s").build());
-    final Connection con = ConnectionFactory.createConnection(conf);
-    final AsyncConnection asyncCon = 
ConnectionFactory.createAsyncConnection(conf).get();
+    setupConnectionCount(opts);
+    final Connection[] cons = new Connection[opts.connCount];
+    final AsyncConnection[] asyncCons = new AsyncConnection[opts.connCount];
+    for (int i = 0; i < opts.connCount; i++) {
+      cons[i] = ConnectionFactory.createConnection(conf);
+      asyncCons[i] = ConnectionFactory.createAsyncConnection(conf).get();
+    }
+    LOG.info("Created " + opts.connCount + " connections for " +
+        opts.numClientThreads + " threads");
     for (int i = 0; i < threads.length; i++) {
       final int index = i;
       threads[i] = pool.submit(new Callable<RunResult>() {
         @Override
         public RunResult call() throws Exception {
           TestOptions threadOpts = new TestOptions(opts);
+          final Connection con = cons[index % cons.length];
+          final AsyncConnection asyncCon = asyncCons[index % asyncCons.length];
           if (threadOpts.startRow == 0) threadOpts.startRow = index * 
threadOpts.perClientRunRows;
           RunResult run = runOneClient(cmd, conf, con, asyncCon, threadOpts, 
new Status() {
             @Override
@@ -485,16 +505,26 @@ public class PerformanceEvaluation extends Configured 
implements Tool {
              + Arrays.toString(results));
     Arrays.sort(results);
     long total = 0;
+    float avgLatency = 0 ;
+    float avgTPS = 0;
     for (RunResult result : results) {
       total += result.duration;
+      avgLatency += result.hist.getSnapshot().getMean();
+      avgTPS += opts.perClientRunRows * 1.0f / result.duration;
     }
-    LOG.info("[" + test + "]"
+    avgTPS *= 1000; // ms to second
+    avgLatency = avgLatency / results.length;
+    LOG.info("[" + test + " duration ]"
       + "\tMin: " + results[0] + "ms"
       + "\tMax: " + results[results.length - 1] + "ms"
       + "\tAvg: " + (total / results.length) + "ms");
+    LOG.info("[ Avg latency (us)]\t" + Math.round(avgLatency));
+    LOG.info("[ Avg TPS/QPS]\t" + Math.round(avgTPS) + "\t row per second");
+    for (int i = 0; i < opts.connCount; i++) {
+      cons[i].close();
+      asyncCons[i].close();
+    }
 
-    con.close();
-    asyncCon.close();
 
     return results;
   }
@@ -648,10 +678,12 @@ public class PerformanceEvaluation extends Configured 
implements Tool {
     boolean writeToWAL = true;
     boolean autoFlush = false;
     boolean oneCon = false;
+    int connCount = -1; //wil decide the actual num later
     boolean useTags = false;
     int noOfTags = 1;
     boolean reportLatency = false;
     int multiGet = 0;
+    int multiPut = 0;
     int randomSleep = 0;
     boolean inMemoryCF = false;
     int presplitRegions = 0;
@@ -700,10 +732,12 @@ public class PerformanceEvaluation extends Configured 
implements Tool {
       this.writeToWAL = that.writeToWAL;
       this.autoFlush = that.autoFlush;
       this.oneCon = that.oneCon;
+      this.connCount = that.connCount;
       this.useTags = that.useTags;
       this.noOfTags = that.noOfTags;
       this.reportLatency = that.reportLatency;
       this.multiGet = that.multiGet;
+      this.multiPut = that.multiPut;
       this.inMemoryCF = that.inMemoryCF;
       this.presplitRegions = that.presplitRegions;
       this.replicas = that.replicas;
@@ -858,6 +892,14 @@ public class PerformanceEvaluation extends Configured 
implements Tool {
       this.oneCon = oneCon;
     }
 
+    public int getConnCount() {
+      return connCount;
+    }
+
+    public void setConnCount(int connCount) {
+      this.connCount = connCount;
+    }
+
     public void setUseTags(boolean useTags) {
       this.useTags = useTags;
     }
@@ -874,6 +916,10 @@ public class PerformanceEvaluation extends Configured 
implements Tool {
       this.multiGet = multiGet;
     }
 
+    public void setMultiPut(int multiPut) {
+      this.multiPut = multiPut;
+    }
+
     public void setInMemoryCF(boolean inMemoryCF) {
       this.inMemoryCF = inMemoryCF;
     }
@@ -982,6 +1028,10 @@ public class PerformanceEvaluation extends Configured 
implements Tool {
       return multiGet;
     }
 
+    public int getMultiPut() {
+      return multiPut;
+    }
+
     public boolean isInMemoryCF() {
       return inMemoryCF;
     }
@@ -1198,12 +1248,9 @@ public class PerformanceEvaluation extends Configured 
implements Tool {
       bytesInResultsHistogram = YammerHistogramUtils.newHistogram(new 
UniformReservoir(1024 * 500));
       bytesInRemoteResultsHistogram = YammerHistogramUtils.newHistogram(new 
UniformReservoir(1024 * 500));
 
-      createConnection();
       onStartup();
     }
 
-    abstract void createConnection() throws IOException;
-
     abstract void onStartup() throws IOException;
 
     void testTakedown() throws IOException {
@@ -1217,10 +1264,14 @@ public class PerformanceEvaluation extends Configured 
implements Tool {
             latencyHistogram));
         status.setStatus("Num measures (latency) : " + 
latencyHistogram.getCount());
         
status.setStatus(YammerHistogramUtils.getPrettyHistogramReport(latencyHistogram));
-        status.setStatus("ValueSize (bytes) : "
-            + YammerHistogramUtils.getHistogramReport(valueSizeHistogram));
-        status.setStatus("Num measures (ValueSize): " + 
valueSizeHistogram.getCount());
-        
status.setStatus(YammerHistogramUtils.getPrettyHistogramReport(valueSizeHistogram));
+        if (valueSizeHistogram.getCount() > 0) {
+          status.setStatus("ValueSize (bytes) : "
+              + YammerHistogramUtils.getHistogramReport(valueSizeHistogram));
+          status.setStatus("Num measures (ValueSize): " + 
valueSizeHistogram.getCount());
+          
status.setStatus(YammerHistogramUtils.getPrettyHistogramReport(valueSizeHistogram));
+        } else {
+          status.setStatus("No valueSize statistics available");
+        }
         if (rpcCallsHistogram.getCount() > 0) {
           status.setStatus("rpcCalls (count): " +
               YammerHistogramUtils.getHistogramReport(rpcCallsHistogram));
@@ -1246,13 +1297,11 @@ public class PerformanceEvaluation extends Configured 
implements Tool {
               
YammerHistogramUtils.getHistogramReport(bytesInRemoteResultsHistogram));
         }
       }
-      closeConnection();
       receiverHost.closeReceivers();
     }
 
     abstract void onTakedown() throws IOException;
 
-    abstract void closeConnection() throws IOException;
 
     /*
      * Run test
@@ -1292,14 +1341,16 @@ public class PerformanceEvaluation extends Configured 
implements Tool {
         for (int i = startRow; i < lastRow; i++) {
           if (i % everyN != 0) continue;
           long startTime = System.nanoTime();
-          try (TraceScope scope = TraceUtil.createTrace("test row")){
-            testRow(i);
+          boolean requestSent = false;
+          try (TraceScope scope = TraceUtil.createTrace("test row");){
+            requestSent = testRow(i);
           }
           if ( (i - startRow) > opts.measureAfter) {
-            // If multiget is enabled, say set to 10, testRow() returns 
immediately first 9 times
-            // and sends the actual get request in the 10th iteration. We 
should only set latency
-            // when actual request is sent because otherwise it turns out to 
be 0.
-            if (opts.multiGet == 0 || (i - startRow + 1) % opts.multiGet == 0) 
{
+            // If multiget or multiput is enabled, say set to 10, testRow() 
returns immediately
+            // first 9 times and sends the actual get request in the 10th 
iteration.
+            // We should only set latency when actual request is sent because 
otherwise
+            // it turns out to be 0.
+            if (requestSent) {
               latencyHistogram.update((System.nanoTime() - startTime) / 1000);
             }
             if (status != null && i > 0 && (i % getReportingPeriod()) == 0) {
@@ -1324,11 +1375,15 @@ public class PerformanceEvaluation extends Configured 
implements Tool {
       return 
YammerHistogramUtils.getShortHistogramReport(this.valueSizeHistogram);
     }
 
-    /*
-    * Test for individual row.
-    * @param i Row index.
-    */
-    abstract void testRow(final int i) throws IOException, 
InterruptedException;
+
+    /**
+     * Test for individual row.
+     * @param i Row index.
+     * @return true if the row was sent to server and need to record metrics.
+     *         False if not, multiGet and multiPut e.g., the rows are sent
+     *         to server only if enough gets/puts are gathered.
+     */
+    abstract boolean testRow(final int i) throws IOException, 
InterruptedException;
   }
 
   static abstract class Test extends TestBase {
@@ -1338,20 +1393,6 @@ public class PerformanceEvaluation extends Configured 
implements Tool {
       super(con == null ? HBaseConfiguration.create() : 
con.getConfiguration(), options, status);
       this.connection = con;
     }
-
-    @Override
-    void createConnection() throws IOException {
-      if (!opts.isOneCon()) {
-        this.connection = ConnectionFactory.createConnection(conf);
-      }
-    }
-
-    @Override
-    void closeConnection() throws IOException {
-      if (!opts.isOneCon()) {
-        this.connection.close();
-      }
-    }
   }
 
   static abstract class AsyncTest extends TestBase {
@@ -1361,24 +1402,6 @@ public class PerformanceEvaluation extends Configured 
implements Tool {
       super(con == null ? HBaseConfiguration.create() : 
con.getConfiguration(), options, status);
       this.connection = con;
     }
-
-    @Override
-    void createConnection() {
-      if (!opts.isOneCon()) {
-        try {
-          this.connection = 
ConnectionFactory.createAsyncConnection(conf).get();
-        } catch (InterruptedException | ExecutionException e) {
-          LOG.error("Failed to create async connection", e);
-        }
-      }
-    }
-
-    @Override
-    void closeConnection() throws IOException {
-      if (!opts.isOneCon()) {
-        this.connection.close();
-      }
-    }
   }
 
   static abstract class TableTest extends Test {
@@ -1431,7 +1454,7 @@ public class PerformanceEvaluation extends Configured 
implements Tool {
     }
 
     @Override
-    void testRow(final int i) throws IOException, InterruptedException {
+    boolean testRow(final int i) throws IOException, InterruptedException {
       if (opts.randomSleep > 0) {
         Thread.sleep(rd.nextInt(opts.randomSleep));
       }
@@ -1460,6 +1483,8 @@ public class PerformanceEvaluation extends Configured 
implements Tool {
                 this.table.get(this.gets).stream().map(f -> 
propagate(f::get)).toArray(Result[]::new);
             updateValueSize(rs);
             this.gets.clear();
+          } else {
+            return false;
           }
         } else {
           updateValueSize(this.table.get(get).get());
@@ -1467,6 +1492,7 @@ public class PerformanceEvaluation extends Configured 
implements Tool {
       } catch (ExecutionException e) {
         throw new IOException(e);
       }
+      return true;
     }
 
     public static RuntimeException runtime(Throwable e) {
@@ -1500,43 +1526,15 @@ public class PerformanceEvaluation extends Configured 
implements Tool {
     }
   }
 
-  static class AsyncRandomWriteTest extends AsyncTableTest {
+  static class AsyncRandomWriteTest extends AsyncSequentialWriteTest {
+
     AsyncRandomWriteTest(AsyncConnection con, TestOptions options, Status 
status) {
       super(con, options, status);
     }
 
     @Override
-    void testRow(final int i) throws IOException, InterruptedException {
-      byte[] row = getRandomRow(this.rand, opts.totalRows);
-      Put put = new Put(row);
-      for (int family = 0; family < opts.families; family++) {
-        byte[] familyName = Bytes.toBytes(FAMILY_NAME_BASE + family);
-        for (int column = 0; column < opts.columns; column++) {
-          byte[] qualifier = column == 0 ? COLUMN_ZERO : Bytes.toBytes("" + 
column);
-          byte[] value = generateData(this.rand, getValueLength(this.rand));
-          if (opts.useTags) {
-            byte[] tag = generateData(this.rand, TAG_LENGTH);
-            Tag[] tags = new Tag[opts.noOfTags];
-            for (int n = 0; n < opts.noOfTags; n++) {
-              Tag t = new ArrayBackedTag((byte) n, tag);
-              tags[n] = t;
-            }
-            KeyValue kv =
-              new KeyValue(row, familyName, qualifier, 
HConstants.LATEST_TIMESTAMP, value, tags);
-            put.add(kv);
-            updateValueSize(kv.getValueLength());
-          } else {
-            put.addColumn(familyName, qualifier, value);
-            updateValueSize(value.length);
-          }
-        }
-      }
-      put.setDurability(opts.writeToWAL ? Durability.SYNC_WAL : 
Durability.SKIP_WAL);
-      try {
-        table.put(put).get();
-      } catch (ExecutionException e) {
-        throw new IOException(e);
-      }
+    protected byte[] generateRow(final int i) {
+      return getRandomRow(this.rand, opts.totalRows);
     }
   }
 
@@ -1565,7 +1563,7 @@ public class PerformanceEvaluation extends Configured 
implements Tool {
     }
 
     @Override
-    void testRow(final int i) throws IOException {
+    boolean testRow(final int i) throws IOException {
       if (this.testScanner == null) {
         Scan scan =
             new 
Scan().withStartRow(format(opts.startRow)).setCaching(opts.caching)
@@ -1589,6 +1587,7 @@ public class PerformanceEvaluation extends Configured 
implements Tool {
       }
       Result r = testScanner.next();
       updateValueSize(r);
+      return true;
     }
   }
 
@@ -1598,7 +1597,7 @@ public class PerformanceEvaluation extends Configured 
implements Tool {
     }
 
     @Override
-    void testRow(final int i) throws IOException, InterruptedException {
+    boolean testRow(final int i) throws IOException, InterruptedException {
       Get get = new Get(format(i));
       for (int family = 0; family < opts.families; family++) {
         byte[] familyName = Bytes.toBytes(FAMILY_NAME_BASE + family);
@@ -1619,17 +1618,29 @@ public class PerformanceEvaluation extends Configured 
implements Tool {
       } catch (ExecutionException e) {
         throw new IOException(e);
       }
+      return true;
     }
   }
 
   static class AsyncSequentialWriteTest extends AsyncTableTest {
+    private ArrayList<Put> puts;
+
     AsyncSequentialWriteTest(AsyncConnection con, TestOptions options, Status 
status) {
       super(con, options, status);
+      if (opts.multiPut > 0) {
+        LOG.info("MultiPut enabled. Sending PUTs in batches of " + 
opts.multiPut + ".");
+        this.puts = new ArrayList<>(opts.multiPut);
+      }
+    }
+
+    protected byte[] generateRow(final int i) {
+      return format(i);
     }
 
     @Override
-    void testRow(final int i) throws IOException, InterruptedException {
-      byte[] row = format(i);
+    @SuppressWarnings("ReturnValueIgnored")
+    boolean testRow(final int i) throws IOException, InterruptedException {
+      byte[] row = generateRow(i);
       Put put = new Put(row);
       for (int family = 0; family < opts.families; family++) {
         byte[] familyName = Bytes.toBytes(FAMILY_NAME_BASE + family);
@@ -1656,9 +1667,21 @@ public class PerformanceEvaluation extends Configured 
implements Tool {
       put.setDurability(opts.writeToWAL ? Durability.SYNC_WAL : 
Durability.SKIP_WAL);
       try {
         table.put(put).get();
+        if (opts.multiPut > 0) {
+          this.puts.add(put);
+          if (this.puts.size() == opts.multiPut) {
+            this.table.put(puts).stream().map(f -> 
AsyncRandomReadTest.propagate(f::get));
+            this.puts.clear();
+          } else {
+            return false;
+          }
+        } else {
+          table.put(put).get();
+        }
       } catch (ExecutionException e) {
         throw new IOException(e);
       }
+      return true;
     }
   }
 
@@ -1691,7 +1714,7 @@ public class PerformanceEvaluation extends Configured 
implements Tool {
     }
 
     @Override
-    void testRow(final int i) throws IOException {
+    boolean testRow(final int i) throws IOException {
       Scan scan = new Scan().withStartRow(getRandomRow(this.rand, 
opts.totalRows))
           .setCaching(opts.caching).setCacheBlocks(opts.cacheBlocks)
           .setAsyncPrefetch(opts.asyncPrefetch).setReadType(opts.scanReadType)
@@ -1722,6 +1745,7 @@ public class PerformanceEvaluation extends Configured 
implements Tool {
         updateScanMetrics(s.getScanMetrics());
         s.close();
       }
+      return true;
     }
 
     @Override
@@ -1738,7 +1762,7 @@ public class PerformanceEvaluation extends Configured 
implements Tool {
     }
 
     @Override
-    void testRow(final int i) throws IOException {
+    boolean testRow(final int i) throws IOException {
       Pair<byte[], byte[]> startAndStopRow = getStartAndStopRow();
       Scan scan = new Scan().withStartRow(startAndStopRow.getFirst())
           .withStopRow(startAndStopRow.getSecond()).setCaching(opts.caching)
@@ -1775,6 +1799,7 @@ public class PerformanceEvaluation extends Configured 
implements Tool {
         updateScanMetrics(s.getScanMetrics());
         s.close();
       }
+      return true;
     }
 
     protected abstract Pair<byte[],byte[]> getStartAndStopRow();
@@ -1851,7 +1876,7 @@ public class PerformanceEvaluation extends Configured 
implements Tool {
     }
 
     @Override
-    void testRow(final int i) throws IOException, InterruptedException {
+    boolean testRow(final int i) throws IOException, InterruptedException {
       if (opts.randomSleep > 0) {
         Thread.sleep(rd.nextInt(opts.randomSleep));
       }
@@ -1878,10 +1903,13 @@ public class PerformanceEvaluation extends Configured 
implements Tool {
           Result [] rs = this.table.get(this.gets);
           updateValueSize(rs);
           this.gets.clear();
+        } else {
+          return false;
         }
       } else {
         updateValueSize(this.table.get(get));
       }
+      return true;
     }
 
     @Override
@@ -1900,44 +1928,17 @@ public class PerformanceEvaluation extends Configured 
implements Tool {
     }
   }
 
-  static class RandomWriteTest extends BufferedMutatorTest {
+  static class RandomWriteTest extends SequentialWriteTest {
     RandomWriteTest(Connection con, TestOptions options, Status status) {
       super(con, options, status);
     }
 
     @Override
-    void testRow(final int i) throws IOException {
-      byte[] row = getRandomRow(this.rand, opts.totalRows);
-      Put put = new Put(row);
-      for (int family = 0; family < opts.families; family++) {
-        byte[] familyName = Bytes.toBytes(FAMILY_NAME_BASE + family);
-        for (int column = 0; column < opts.columns; column++) {
-          byte [] qualifier = column == 0? COLUMN_ZERO: Bytes.toBytes("" + 
column);
-          byte[] value = generateData(this.rand, getValueLength(this.rand));
-          if (opts.useTags) {
-            byte[] tag = generateData(this.rand, TAG_LENGTH);
-            Tag[] tags = new Tag[opts.noOfTags];
-            for (int n = 0; n < opts.noOfTags; n++) {
-              Tag t = new ArrayBackedTag((byte) n, tag);
-              tags[n] = t;
-            }
-            KeyValue kv = new KeyValue(row, familyName, qualifier, 
HConstants.LATEST_TIMESTAMP,
-              value, tags);
-            put.add(kv);
-            updateValueSize(kv.getValueLength());
-          } else {
-            put.addColumn(familyName, qualifier, value);
-            updateValueSize(value.length);
-          }
-        }
-      }
-      put.setDurability(opts.writeToWAL ? Durability.SYNC_WAL : 
Durability.SKIP_WAL);
-      if (opts.autoFlush) {
-        table.put(put);
-      } else {
-        mutator.mutate(put);
-      }
+    protected byte[] generateRow(final int i) {
+      return getRandomRow(this.rand, opts.totalRows);
     }
+
+
   }
 
   static class ScanTest extends TableTest {
@@ -1957,7 +1958,7 @@ public class PerformanceEvaluation extends Configured 
implements Tool {
 
 
     @Override
-    void testRow(final int i) throws IOException {
+    boolean testRow(final int i) throws IOException {
       if (this.testScanner == null) {
         Scan scan = new 
Scan().withStartRow(format(opts.startRow)).setCaching(opts.caching)
             
.setCacheBlocks(opts.cacheBlocks).setAsyncPrefetch(opts.asyncPrefetch)
@@ -1980,6 +1981,7 @@ public class PerformanceEvaluation extends Configured 
implements Tool {
       }
       Result r = testScanner.next();
       updateValueSize(r);
+      return true;
     }
   }
 
@@ -2019,7 +2021,7 @@ public class PerformanceEvaluation extends Configured 
implements Tool {
     }
 
     @Override
-    void testRow(final int i) throws IOException {
+    boolean testRow(final int i) throws IOException {
       Increment increment = new Increment(format(i));
       // unlike checkAndXXX tests, which make most sense to do on a single 
value,
       // if multiple families are specified for an increment test we assume it 
is
@@ -2029,6 +2031,7 @@ public class PerformanceEvaluation extends Configured 
implements Tool {
         increment.addColumn(familyName, getQualifier(), 1l);
       }
       updateValueSize(this.table.increment(increment));
+      return true;
     }
   }
 
@@ -2038,7 +2041,7 @@ public class PerformanceEvaluation extends Configured 
implements Tool {
     }
 
     @Override
-    void testRow(final int i) throws IOException {
+    boolean testRow(final int i) throws IOException {
       byte [] bytes = format(i);
       Append append = new Append(bytes);
       // unlike checkAndXXX tests, which make most sense to do on a single 
value,
@@ -2049,6 +2052,7 @@ public class PerformanceEvaluation extends Configured 
implements Tool {
         append.addColumn(familyName, getQualifier(), bytes);
       }
       updateValueSize(this.table.append(append));
+      return true;
     }
   }
 
@@ -2058,7 +2062,7 @@ public class PerformanceEvaluation extends Configured 
implements Tool {
     }
 
     @Override
-    void testRow(final int i) throws IOException {
+    boolean testRow(final int i) throws IOException {
       final byte [] bytes = format(i);
       // checkAndXXX tests operate on only a single value
       // Put a known value so when we go to check it, it is there.
@@ -2069,6 +2073,7 @@ public class PerformanceEvaluation extends Configured 
implements Tool {
       mutations.add(put);
       this.table.checkAndMutate(bytes, FAMILY_ZERO).qualifier(getQualifier())
           .ifEquals(bytes).thenMutate(mutations);
+      return true;
     }
   }
 
@@ -2078,7 +2083,7 @@ public class PerformanceEvaluation extends Configured 
implements Tool {
     }
 
     @Override
-    void testRow(final int i) throws IOException {
+    boolean testRow(final int i) throws IOException {
       final byte [] bytes = format(i);
       // checkAndXXX tests operate on only a single value
       // Put a known value so when we go to check it, it is there.
@@ -2087,6 +2092,7 @@ public class PerformanceEvaluation extends Configured 
implements Tool {
       this.table.put(put);
       this.table.checkAndMutate(bytes, FAMILY_ZERO).qualifier(getQualifier())
           .ifEquals(bytes).thenPut(put);
+      return true;
     }
   }
 
@@ -2096,7 +2102,7 @@ public class PerformanceEvaluation extends Configured 
implements Tool {
     }
 
     @Override
-    void testRow(final int i) throws IOException {
+    boolean testRow(final int i) throws IOException {
       final byte [] bytes = format(i);
       // checkAndXXX tests operate on only a single value
       // Put a known value so when we go to check it, it is there.
@@ -2107,6 +2113,7 @@ public class PerformanceEvaluation extends Configured 
implements Tool {
       delete.addColumn(FAMILY_ZERO, getQualifier());
       this.table.checkAndMutate(bytes, FAMILY_ZERO).qualifier(getQualifier())
           .ifEquals(bytes).thenDelete(delete);
+      return true;
     }
   }
 
@@ -2116,7 +2123,7 @@ public class PerformanceEvaluation extends Configured 
implements Tool {
     }
 
     @Override
-    void testRow(final int i) throws IOException {
+    boolean testRow(final int i) throws IOException {
       Get get = new Get(format(i));
       for (int family = 0; family < opts.families; family++) {
         byte[] familyName = Bytes.toBytes(FAMILY_NAME_BASE + family);
@@ -2133,17 +2140,29 @@ public class PerformanceEvaluation extends Configured 
implements Tool {
         get.setFilter(new FilterAllFilter());
       }
       updateValueSize(table.get(get));
+      return true;
     }
   }
 
   static class SequentialWriteTest extends BufferedMutatorTest {
+    private ArrayList<Put> puts;
+
+
     SequentialWriteTest(Connection con, TestOptions options, Status status) {
       super(con, options, status);
+      if (opts.multiPut > 0) {
+        LOG.info("MultiPut enabled. Sending PUTs in batches of " + 
opts.multiPut + ".");
+        this.puts = new ArrayList<>(opts.multiPut);
+      }
+    }
+
+    protected byte[] generateRow(final int i) {
+      return format(i);
     }
 
     @Override
-    void testRow(final int i) throws IOException {
-      byte[] row = format(i);
+    boolean testRow(final int i) throws IOException {
+      byte[] row = generateRow(i);
       Put put = new Put(row);
       for (int family = 0; family < opts.families; family++) {
         byte familyName[] = Bytes.toBytes(FAMILY_NAME_BASE + family);
@@ -2169,10 +2188,21 @@ public class PerformanceEvaluation extends Configured 
implements Tool {
       }
       put.setDurability(opts.writeToWAL ? Durability.SYNC_WAL : 
Durability.SKIP_WAL);
       if (opts.autoFlush) {
-        table.put(put);
+        if (opts.multiPut > 0) {
+          this.puts.add(put);
+          if (this.puts.size() == opts.multiPut) {
+            table.put(this.puts);
+            this.puts.clear();
+          } else {
+            return false;
+          }
+        } else {
+          table.put(put);
+        }
       } else {
         mutator.mutate(put);
       }
+      return true;
     }
   }
 
@@ -2184,7 +2214,7 @@ public class PerformanceEvaluation extends Configured 
implements Tool {
     }
 
     @Override
-    void testRow(int i) throws IOException {
+    boolean testRow(int i) throws IOException {
       byte[] value = generateData(this.rand, getValueLength(this.rand));
       Scan scan = constructScan(value);
       ResultScanner scanner = null;
@@ -2199,6 +2229,7 @@ public class PerformanceEvaluation extends Configured 
implements Tool {
           scanner.close();
         }
       }
+      return true;
     }
 
     protected Scan constructScan(byte[] valuePrefix) throws IOException {
@@ -2380,6 +2411,11 @@ public class PerformanceEvaluation extends Configured 
implements Tool {
     System.err.println(" nomapred        Run multiple clients using threads " +
       "(rather than use mapreduce)");
     System.err.println(" oneCon          all the threads share the same 
connection. Default: False");
+    System.err.println(" connCount          connections all threads share. "
+        + "For example, if set to 2, then all thread share 2 connection. "
+        + "Default: depend on oneCon parameter. if oneCon set to true, then 
connCount=1, "
+        + "if not, connCount=thread number");
+
     System.err.println(" sampleRate      Execute test on a sample of total " +
       "rows. Only supported by randomRead. Default: 1.0");
     System.err.println(" period          Report every 'period' rows: " +
@@ -2416,6 +2452,8 @@ public class PerformanceEvaluation extends Configured 
implements Tool {
         "'valueSize' in zipf form: Default: Not set.");
     System.err.println(" writeToWAL      Set writeToWAL on puts. Default: 
True");
     System.err.println(" autoFlush       Set autoFlush on htable. Default: 
False");
+    System.err.println(" multiPut        Batch puts together into groups of N. 
Only supported " +
+        "by write. If multiPut is bigger than 0, autoFlush need to set to 
true. Default: 0");
     System.err.println(" presplit        Create presplit table. If a table 
with same name exists,"
         + " it'll be deleted and recreated (instead of verifying count of its 
existing regions). "
         + "Recommended for accurate perf analysis (see guide). Default: 
disabled");
@@ -2568,12 +2606,29 @@ public class PerformanceEvaluation extends Configured 
implements Tool {
       final String autoFlush = "--autoFlush=";
       if (cmd.startsWith(autoFlush)) {
         opts.autoFlush = 
Boolean.parseBoolean(cmd.substring(autoFlush.length()));
+        if (!opts.autoFlush && opts.multiPut > 0) {
+          throw new IllegalArgumentException("autoFlush must be true when 
multiPut is more than 0");
+        }
         continue;
       }
 
       final String onceCon = "--oneCon=";
       if (cmd.startsWith(onceCon)) {
         opts.oneCon = Boolean.parseBoolean(cmd.substring(onceCon.length()));
+        if (opts.oneCon && opts.connCount > 1) {
+          throw new IllegalArgumentException("oneCon is set to true, "
+              + "connCount should not bigger than 1");
+        }
+        continue;
+      }
+
+      final String connCount = "--connCount=";
+      if (cmd.startsWith(connCount)) {
+        opts.connCount = Integer.parseInt(cmd.substring(connCount.length()));
+        if (opts.oneCon && opts.connCount > 1) {
+          throw new IllegalArgumentException("oneCon is set to true, "
+              + "connCount should not bigger than 1");
+        }
         continue;
       }
 
@@ -2589,6 +2644,15 @@ public class PerformanceEvaluation extends Configured 
implements Tool {
         continue;
       }
 
+      final String multiPut = "--multiPut=";
+      if (cmd.startsWith(multiPut)) {
+        opts.multiPut = Integer.parseInt(cmd.substring(multiPut.length()));
+        if (!opts.autoFlush && opts.multiPut > 0) {
+          throw new IllegalArgumentException("autoFlush must be true when 
multiPut is more than 0");
+        }
+        continue;
+      }
+
       final String useTags = "--usetags=";
       if (cmd.startsWith(useTags)) {
         opts.useTags = Boolean.parseBoolean(cmd.substring(useTags.length()));

http://git-wip-us.apache.org/repos/asf/hbase/blob/f3d1c021/hbase-mapreduce/src/test/java/org/apache/hadoop/hbase/TestPerformanceEvaluation.java
----------------------------------------------------------------------
diff --git 
a/hbase-mapreduce/src/test/java/org/apache/hadoop/hbase/TestPerformanceEvaluation.java
 
b/hbase-mapreduce/src/test/java/org/apache/hadoop/hbase/TestPerformanceEvaluation.java
index b2a89c8..2e1ecd0 100644
--- 
a/hbase-mapreduce/src/test/java/org/apache/hadoop/hbase/TestPerformanceEvaluation.java
+++ 
b/hbase-mapreduce/src/test/java/org/apache/hadoop/hbase/TestPerformanceEvaluation.java
@@ -243,4 +243,50 @@ public class TestPerformanceEvaluation {
       assertTrue(e.getCause() instanceof NoSuchElementException);
     }
   }
+
+  @Test
+  public void testParseOptsMultiPuts() {
+    Queue<String> opts = new LinkedList<>();
+    String cmdName = "sequentialWrite";
+    opts.offer("--multiPut=10");
+    opts.offer(cmdName);
+    opts.offer("64");
+    PerformanceEvaluation.TestOptions options = null;
+    try {
+      options = PerformanceEvaluation.parseOpts(opts);
+      fail("should fail");
+    } catch (IllegalArgumentException  e) {
+      System.out.println(e.getMessage());
+    }
+    ((LinkedList<String>) opts).offerFirst("--multiPut=10");
+    ((LinkedList<String>) opts).offerFirst("--autoFlush=true");
+    options = PerformanceEvaluation.parseOpts(opts);
+    assertNotNull(options);
+    assertNotNull(options.getCmdName());
+    assertEquals(cmdName, options.getCmdName());
+    assertTrue(options.getMultiPut() == 10);
+  }
+
+  @Test
+  public void testParseOptsConnCount() {
+    Queue<String> opts = new LinkedList<>();
+    String cmdName = "sequentialWrite";
+    opts.offer("--oneCon=true");
+    opts.offer("--connCount=10");
+    opts.offer(cmdName);
+    opts.offer("64");
+    PerformanceEvaluation.TestOptions options = null;
+    try {
+      options = PerformanceEvaluation.parseOpts(opts);
+      fail("should fail");
+    } catch (IllegalArgumentException  e) {
+      System.out.println(e.getMessage());
+    }
+    ((LinkedList<String>) opts).offerFirst("--connCount=10");
+    options = PerformanceEvaluation.parseOpts(opts);
+    assertNotNull(options);
+    assertNotNull(options.getCmdName());
+    assertEquals(cmdName, options.getCmdName());
+    assertTrue(options.getConnCount() == 10);
+  }
 }

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