[01/18] hbase-site git commit: Published site at .

[git-site-role]

Repository: hbase-site
Updated Branches:
  refs/heads/asf-site f2c790b70 -> 1473a64a7


http://git-wip-us.apache.org/repos/asf/hbase-site/blob/1473a64a/testdevapidocs/src-html/org/apache/hadoop/hbase/regionserver/TestWALMonotonicallyIncreasingSeqId.PutThread.html
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diff --git 
a/testdevapidocs/src-html/org/apache/hadoop/hbase/regionserver/TestWALMonotonicallyIncreasingSeqId.PutThread.html
 
b/testdevapidocs/src-html/org/apache/hadoop/hbase/regionserver/TestWALMonotonicallyIncreasingSeqId.PutThread.html
index 06992c4..f5e1b5f 100644
--- 
a/testdevapidocs/src-html/org/apache/hadoop/hbase/regionserver/TestWALMonotonicallyIncreasingSeqId.PutThread.html
+++ 
b/testdevapidocs/src-html/org/apache/hadoop/hbase/regionserver/TestWALMonotonicallyIncreasingSeqId.PutThread.html
@@ -26,199 +26,226 @@
 <span class="sourceLineNo">018</span> */<a name="line.18"></a>
 <span class="sourceLineNo">019</span>package 
org.apache.hadoop.hbase.regionserver;<a name="line.19"></a>
 <span class="sourceLineNo">020</span><a name="line.20"></a>
-<span class="sourceLineNo">021</span>import org.apache.commons.logging.Log;<a 
name="line.21"></a>
-<span class="sourceLineNo">022</span>import 
org.apache.commons.logging.LogFactory;<a name="line.22"></a>
-<span class="sourceLineNo">023</span>import 
org.apache.hadoop.conf.Configuration;<a name="line.23"></a>
-<span class="sourceLineNo">024</span>import org.apache.hadoop.fs.FileSystem;<a 
name="line.24"></a>
-<span class="sourceLineNo">025</span>import org.apache.hadoop.fs.Path;<a 
name="line.25"></a>
-<span class="sourceLineNo">026</span>import org.apache.hadoop.hbase.*;<a 
name="line.26"></a>
-<span class="sourceLineNo">027</span>import 
org.apache.hadoop.hbase.client.*;<a name="line.27"></a>
-<span class="sourceLineNo">028</span>import 
org.apache.hadoop.hbase.regionserver.wal.FSHLog;<a name="line.28"></a>
-<span class="sourceLineNo">029</span>import 
org.apache.hadoop.hbase.wal.WALEdit;<a name="line.29"></a>
-<span class="sourceLineNo">030</span>import 
org.apache.hadoop.hbase.testclassification.RegionServerTests;<a 
name="line.30"></a>
-<span class="sourceLineNo">031</span>import 
org.apache.hadoop.hbase.testclassification.SmallTests;<a name="line.31"></a>
-<span class="sourceLineNo">032</span>import 
org.apache.hadoop.hbase.util.Bytes;<a name="line.32"></a>
-<span class="sourceLineNo">033</span>import 
org.apache.hadoop.hbase.util.FSUtils;<a name="line.33"></a>
-<span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.wal.WAL;<a 
name="line.34"></a>
-<span class="sourceLineNo">035</span>import 
org.apache.hadoop.hbase.wal.WALFactory;<a name="line.35"></a>
-<span class="sourceLineNo">036</span>import org.junit.Assert;<a 
name="line.36"></a>
-<span class="sourceLineNo">037</span>import org.junit.Rule;<a 
name="line.37"></a>
-<span class="sourceLineNo">038</span>import org.junit.Test;<a 
name="line.38"></a>
-<span class="sourceLineNo">039</span>import 
org.junit.experimental.categories.Category;<a name="line.39"></a>
-<span class="sourceLineNo">040</span>import org.junit.rules.TestName;<a 
name="line.40"></a>
-<span class="sourceLineNo">041</span><a name="line.41"></a>
-<span class="sourceLineNo">042</span>import java.io.IOException;<a 
name="line.42"></a>
-<span class="sourceLineNo">043</span>import java.util.ArrayList;<a 
name="line.43"></a>
-<span class="sourceLineNo">044</span>import java.util.List;<a 
name="line.44"></a>
-<span class="sourceLineNo">045</span>import 
java.util.concurrent.CountDownLatch;<a name="line.45"></a>
-<span class="sourceLineNo">046</span><a name="line.46"></a>
-<span class="sourceLineNo">047</span>/**<a name="line.47"></a>
-<span class="sourceLineNo">048</span> * Test for HBASE-17471<a 
name="line.48"></a>
-<span class="sourceLineNo">049</span> * MVCCPreAssign is added by HBASE-16698, 
but pre-assign mvcc is only used in put/delete<a name="line.49"></a>
-<span class="sourceLineNo">050</span> * path. Other write paths like 
increment/append still assign mvcc in ringbuffer's consumer<a 
name="line.50"></a>
-<span class="sourceLineNo">051</span> * thread. If put and increment are used 
parallel. Then seqid in WAL may not increase monotonically<a name="line.51"></a>
-<span class="sourceLineNo">052</span> * Disorder in wals will lead to data 
loss.<a name="line.52"></a>
-<span class="sourceLineNo">053</span> * This case use two thread to put and 
increment at the same time in a single region.<a name="line.53"></a>
-<span class="sourceLineNo">054</span> * Then check the seqid in WAL. If seqid 
is wal is not monotonically increasing, this case will fail<a 
name="line.54"></a>
-<span class="sourceLineNo">055</span> *<a name="line.55"></a>
-<span class="sourceLineNo">056</span> */<a name="line.56"></a>
-<span class="sourceLineNo">057</span>@Category({RegionServerTests.class, 
SmallTests.class})<a name="line.57"></a>
-<span class="sourceLineNo">058</span>public class 
TestWALMonotonicallyIncreasingSeqId {<a name="line.58"></a>
-<span class="sourceLineNo">059</span>  final Log LOG = 
LogFactory.getLog(getClass());<a name="line.59"></a>
-<span class="sourceLineNo">060</span>  private final static 
HBaseTestingUtility TEST_UTIL = new HBaseTestingUtility();<a name="line.60"></a>
-<span class="sourceLineNo">061</span>  private static Path testDir = 
TEST_UTIL.getDataTestDir("TestWALMonotonicallyIncreasingSeqId");<a 
name="line.61"></a>
-<span class="sourceLineNo">062</span>  private WALFactory wals;<a 
name="line.62"></a>
-<span class="sourceLineNo">063</span>  private FileSystem fileSystem;<a 
name="line.63"></a>
-<span class="sourceLineNo">064</span>  private Configuration walConf;<a 
name="line.64"></a>
-<span class="sourceLineNo">065</span><a name="line.65"></a>
-<span class="sourceLineNo">066</span>  public static final String KEY_SEED = 
"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";<a name="line.66"></a>
-<span class="sourceLineNo">067</span><a name="line.67"></a>
-<span class="sourceLineNo">068</span>  private static final int KEY_SEED_LEN = 
KEY_SEED.length();<a name="line.68"></a>
-<span class="sourceLineNo">069</span><a name="line.69"></a>
-<span class="sourceLineNo">070</span>  private static final char[] 
KEY_SEED_CHARS = KEY_SEED.toCharArray();<a name="line.70"></a>
-<span class="sourceLineNo">071</span><a name="line.71"></a>
-<span class="sourceLineNo">072</span>  @Rule<a name="line.72"></a>
-<span class="sourceLineNo">073</span>  public TestName name = new 
TestName();<a name="line.73"></a>
-<span class="sourceLineNo">074</span><a name="line.74"></a>
-<span class="sourceLineNo">075</span>  private HTableDescriptor 
getTableDesc(TableName tableName, byte[]... families) {<a name="line.75"></a>
-<span class="sourceLineNo">076</span>    HTableDescriptor htd = new 
HTableDescriptor(tableName);<a name="line.76"></a>
-<span class="sourceLineNo">077</span>    for (byte[] family : families) {<a 
name="line.77"></a>
-<span class="sourceLineNo">078</span>      HColumnDescriptor hcd = new 
HColumnDescriptor(family);<a name="line.78"></a>
-<span class="sourceLineNo">079</span>      // Set default to be three 
versions.<a name="line.79"></a>
-<span class="sourceLineNo">080</span>      
hcd.setMaxVersions(Integer.MAX_VALUE);<a name="line.80"></a>
-<span class="sourceLineNo">081</span>      htd.addFamily(hcd);<a 
name="line.81"></a>
-<span class="sourceLineNo">082</span>    }<a name="line.82"></a>
-<span class="sourceLineNo">083</span>    return htd;<a name="line.83"></a>
-<span class="sourceLineNo">084</span>  }<a name="line.84"></a>
-<span class="sourceLineNo">085</span><a name="line.85"></a>
-<span class="sourceLineNo">086</span>  private Region 
initHRegion(HTableDescriptor htd, byte[] startKey, byte[] stopKey, int 
replicaId)<a name="line.86"></a>
-<span class="sourceLineNo">087</span>      throws IOException {<a 
name="line.87"></a>
-<span class="sourceLineNo">088</span>    Configuration conf = 
TEST_UTIL.getConfiguration();<a name="line.88"></a>
-<span class="sourceLineNo">089</span>    
conf.setBoolean("hbase.hregion.mvcc.preassign", false);<a name="line.89"></a>
-<span class="sourceLineNo">090</span>    Path tableDir = 
FSUtils.getTableDir(testDir, htd.getTableName());<a name="line.90"></a>
-<span class="sourceLineNo">091</span><a name="line.91"></a>
-<span class="sourceLineNo">092</span>    HRegionInfo info = new 
HRegionInfo(htd.getTableName(), startKey, stopKey, false, 0, replicaId);<a 
name="line.92"></a>
-<span class="sourceLineNo">093</span>    fileSystem =  
tableDir.getFileSystem(conf);<a name="line.93"></a>
-<span class="sourceLineNo">094</span>    HRegionFileSystem fs = new 
HRegionFileSystem(conf, fileSystem, tableDir, info);<a name="line.94"></a>
-<span class="sourceLineNo">095</span>    final Configuration walConf = new 
Configuration(conf);<a name="line.95"></a>
-<span class="sourceLineNo">096</span>    FSUtils.setRootDir(walConf, 
tableDir);<a name="line.96"></a>
-<span class="sourceLineNo">097</span>    this.walConf = walConf;<a 
name="line.97"></a>
-<span class="sourceLineNo">098</span>    wals = new WALFactory(walConf, null, 
"log_" + replicaId);<a name="line.98"></a>
-<span class="sourceLineNo">099</span>    
ChunkCreator.initialize(MemStoreLABImpl.CHUNK_SIZE_DEFAULT, false, 0, 0, 0, 
null);<a name="line.99"></a>
-<span class="sourceLineNo">100</span>    HRegion region = 
HRegion.createHRegion(info, TEST_UTIL.getDefaultRootDirPath(), conf, htd,<a 
name="line.100"></a>
-<span class="sourceLineNo">101</span>        
wals.getWAL(info.getEncodedNameAsBytes(), info.getTable().getNamespace()));<a 
name="line.101"></a>
-<span class="sourceLineNo">102</span>    return region;<a name="line.102"></a>
-<span class="sourceLineNo">103</span>  }<a name="line.103"></a>
-<span class="sourceLineNo">104</span><a name="line.104"></a>
-<span class="sourceLineNo">105</span>  CountDownLatch latch = new 
CountDownLatch(1);<a name="line.105"></a>
-<span class="sourceLineNo">106</span>  public class PutThread extends Thread 
{<a name="line.106"></a>
-<span class="sourceLineNo">107</span>    HRegion region;<a name="line.107"></a>
-<span class="sourceLineNo">108</span>    public PutThread(HRegion region) {<a 
name="line.108"></a>
-<span class="sourceLineNo">109</span>      this.region = region;<a 
name="line.109"></a>
-<span class="sourceLineNo">110</span>    }<a name="line.110"></a>
-<span class="sourceLineNo">111</span><a name="line.111"></a>
-<span class="sourceLineNo">112</span>    @Override<a name="line.112"></a>
-<span class="sourceLineNo">113</span>    public void run() {<a 
name="line.113"></a>
-<span class="sourceLineNo">114</span>      try {<a name="line.114"></a>
-<span class="sourceLineNo">115</span>        for(int i = 0; i &lt; 100; i++) 
{<a name="line.115"></a>
-<span class="sourceLineNo">116</span>          byte[] row = 
Bytes.toBytes("putRow" + i);<a name="line.116"></a>
-<span class="sourceLineNo">117</span>          Put put = new Put(row);<a 
name="line.117"></a>
-<span class="sourceLineNo">118</span>          put.addColumn("cf".getBytes(), 
Bytes.toBytes(0), Bytes.toBytes(""));<a name="line.118"></a>
-<span class="sourceLineNo">119</span>          
//put.setDurability(Durability.ASYNC_WAL);<a name="line.119"></a>
-<span class="sourceLineNo">120</span>          latch.await();<a 
name="line.120"></a>
-<span class="sourceLineNo">121</span>          region.batchMutate(new 
Mutation[]{put});<a name="line.121"></a>
-<span class="sourceLineNo">122</span>          Thread.sleep(10);<a 
name="line.122"></a>
-<span class="sourceLineNo">123</span>        }<a name="line.123"></a>
-<span class="sourceLineNo">124</span><a name="line.124"></a>
+<span class="sourceLineNo">021</span>import static org.junit.Assert.fail;<a 
name="line.21"></a>
+<span class="sourceLineNo">022</span><a name="line.22"></a>
+<span class="sourceLineNo">023</span>import java.io.IOException;<a 
name="line.23"></a>
+<span class="sourceLineNo">024</span>import java.util.ArrayList;<a 
name="line.24"></a>
+<span class="sourceLineNo">025</span>import java.util.Arrays;<a 
name="line.25"></a>
+<span class="sourceLineNo">026</span>import java.util.List;<a 
name="line.26"></a>
+<span class="sourceLineNo">027</span>import 
java.util.concurrent.CountDownLatch;<a name="line.27"></a>
+<span class="sourceLineNo">028</span><a name="line.28"></a>
+<span class="sourceLineNo">029</span>import org.apache.commons.logging.Log;<a 
name="line.29"></a>
+<span class="sourceLineNo">030</span>import 
org.apache.commons.logging.LogFactory;<a name="line.30"></a>
+<span class="sourceLineNo">031</span>import 
org.apache.hadoop.conf.Configuration;<a name="line.31"></a>
+<span class="sourceLineNo">032</span>import org.apache.hadoop.fs.FileSystem;<a 
name="line.32"></a>
+<span class="sourceLineNo">033</span>import org.apache.hadoop.fs.Path;<a 
name="line.33"></a>
+<span class="sourceLineNo">034</span>import 
org.apache.hadoop.hbase.HBaseTestingUtility;<a name="line.34"></a>
+<span class="sourceLineNo">035</span>import 
org.apache.hadoop.hbase.HConstants;<a name="line.35"></a>
+<span class="sourceLineNo">036</span>import 
org.apache.hadoop.hbase.TableName;<a name="line.36"></a>
+<span class="sourceLineNo">037</span>import 
org.apache.hadoop.hbase.client.ColumnFamilyDescriptorBuilder;<a 
name="line.37"></a>
+<span class="sourceLineNo">038</span>import 
org.apache.hadoop.hbase.client.Increment;<a name="line.38"></a>
+<span class="sourceLineNo">039</span>import 
org.apache.hadoop.hbase.client.Mutation;<a name="line.39"></a>
+<span class="sourceLineNo">040</span>import 
org.apache.hadoop.hbase.client.Put;<a name="line.40"></a>
+<span class="sourceLineNo">041</span>import 
org.apache.hadoop.hbase.client.RegionInfo;<a name="line.41"></a>
+<span class="sourceLineNo">042</span>import 
org.apache.hadoop.hbase.client.RegionInfoBuilder;<a name="line.42"></a>
+<span class="sourceLineNo">043</span>import 
org.apache.hadoop.hbase.client.TableDescriptor;<a name="line.43"></a>
+<span class="sourceLineNo">044</span>import 
org.apache.hadoop.hbase.client.TableDescriptorBuilder;<a name="line.44"></a>
+<span class="sourceLineNo">045</span>import 
org.apache.hadoop.hbase.regionserver.wal.AbstractFSWAL;<a name="line.45"></a>
+<span class="sourceLineNo">046</span>import 
org.apache.hadoop.hbase.testclassification.RegionServerTests;<a 
name="line.46"></a>
+<span class="sourceLineNo">047</span>import 
org.apache.hadoop.hbase.testclassification.SmallTests;<a name="line.47"></a>
+<span class="sourceLineNo">048</span>import 
org.apache.hadoop.hbase.util.Bytes;<a name="line.48"></a>
+<span class="sourceLineNo">049</span>import 
org.apache.hadoop.hbase.util.FSUtils;<a name="line.49"></a>
+<span class="sourceLineNo">050</span>import org.apache.hadoop.hbase.wal.WAL;<a 
name="line.50"></a>
+<span class="sourceLineNo">051</span>import 
org.apache.hadoop.hbase.wal.WALEdit;<a name="line.51"></a>
+<span class="sourceLineNo">052</span>import 
org.apache.hadoop.hbase.wal.WALFactory;<a name="line.52"></a>
+<span class="sourceLineNo">053</span>import org.junit.After;<a 
name="line.53"></a>
+<span class="sourceLineNo">054</span>import org.junit.AfterClass;<a 
name="line.54"></a>
+<span class="sourceLineNo">055</span>import org.junit.Before;<a 
name="line.55"></a>
+<span class="sourceLineNo">056</span>import org.junit.Rule;<a 
name="line.56"></a>
+<span class="sourceLineNo">057</span>import org.junit.Test;<a 
name="line.57"></a>
+<span class="sourceLineNo">058</span>import 
org.junit.experimental.categories.Category;<a name="line.58"></a>
+<span class="sourceLineNo">059</span>import org.junit.rules.TestName;<a 
name="line.59"></a>
+<span class="sourceLineNo">060</span>import org.junit.runner.RunWith;<a 
name="line.60"></a>
+<span class="sourceLineNo">061</span>import org.junit.runners.Parameterized;<a 
name="line.61"></a>
+<span class="sourceLineNo">062</span>import 
org.junit.runners.Parameterized.Parameter;<a name="line.62"></a>
+<span class="sourceLineNo">063</span>import 
org.junit.runners.Parameterized.Parameters;<a name="line.63"></a>
+<span class="sourceLineNo">064</span><a name="line.64"></a>
+<span class="sourceLineNo">065</span>/**<a name="line.65"></a>
+<span class="sourceLineNo">066</span> * Test for HBASE-17471.<a 
name="line.66"></a>
+<span class="sourceLineNo">067</span> * &lt;p&gt;<a name="line.67"></a>
+<span class="sourceLineNo">068</span> * MVCCPreAssign is added by HBASE-16698, 
but pre-assign mvcc is only used in put/delete path. Other<a name="line.68"></a>
+<span class="sourceLineNo">069</span> * write paths like increment/append 
still assign mvcc in ringbuffer's consumer thread. If put and<a 
name="line.69"></a>
+<span class="sourceLineNo">070</span> * increment are used parallel. Then 
seqid in WAL may not increase monotonically Disorder in wals<a 
name="line.70"></a>
+<span class="sourceLineNo">071</span> * will lead to data loss.<a 
name="line.71"></a>
+<span class="sourceLineNo">072</span> * &lt;p&gt;<a name="line.72"></a>
+<span class="sourceLineNo">073</span> * This case use two thread to put and 
increment at the same time in a single region. Then check the<a 
name="line.73"></a>
+<span class="sourceLineNo">074</span> * seqid in WAL. If seqid is wal is not 
monotonically increasing, this case will fail<a name="line.74"></a>
+<span class="sourceLineNo">075</span> */<a name="line.75"></a>
+<span class="sourceLineNo">076</span>@RunWith(Parameterized.class)<a 
name="line.76"></a>
+<span class="sourceLineNo">077</span>@Category({ RegionServerTests.class, 
SmallTests.class })<a name="line.77"></a>
+<span class="sourceLineNo">078</span>public class 
TestWALMonotonicallyIncreasingSeqId {<a name="line.78"></a>
+<span class="sourceLineNo">079</span>  private final Log LOG = 
LogFactory.getLog(getClass());<a name="line.79"></a>
+<span class="sourceLineNo">080</span>  private final static 
HBaseTestingUtility TEST_UTIL = new HBaseTestingUtility();<a name="line.80"></a>
+<span class="sourceLineNo">081</span>  private static Path testDir = 
TEST_UTIL.getDataTestDir("TestWALMonotonicallyIncreasingSeqId");<a 
name="line.81"></a>
+<span class="sourceLineNo">082</span>  private WALFactory wals;<a 
name="line.82"></a>
+<span class="sourceLineNo">083</span>  private FileSystem fileSystem;<a 
name="line.83"></a>
+<span class="sourceLineNo">084</span>  private Configuration walConf;<a 
name="line.84"></a>
+<span class="sourceLineNo">085</span>  private HRegion region;<a 
name="line.85"></a>
+<span class="sourceLineNo">086</span><a name="line.86"></a>
+<span class="sourceLineNo">087</span>  @Parameter<a name="line.87"></a>
+<span class="sourceLineNo">088</span>  public String walProvider;<a 
name="line.88"></a>
+<span class="sourceLineNo">089</span><a name="line.89"></a>
+<span class="sourceLineNo">090</span>  @Rule<a name="line.90"></a>
+<span class="sourceLineNo">091</span>  public TestName name = new 
TestName();<a name="line.91"></a>
+<span class="sourceLineNo">092</span><a name="line.92"></a>
+<span class="sourceLineNo">093</span>  @Parameters(name = "{index}: 
wal={0}")<a name="line.93"></a>
+<span class="sourceLineNo">094</span>  public static List&lt;Object[]&gt; 
data() {<a name="line.94"></a>
+<span class="sourceLineNo">095</span>    return Arrays.asList(new Object[] { 
"asyncfs" }, new Object[] { "filesystem" });<a name="line.95"></a>
+<span class="sourceLineNo">096</span>  }<a name="line.96"></a>
+<span class="sourceLineNo">097</span><a name="line.97"></a>
+<span class="sourceLineNo">098</span>  private TableDescriptor 
getTableDesc(TableName tableName, byte[]... families) {<a name="line.98"></a>
+<span class="sourceLineNo">099</span>    TableDescriptorBuilder builder = 
TableDescriptorBuilder.newBuilder(tableName);<a name="line.99"></a>
+<span class="sourceLineNo">100</span>    Arrays.stream(families).map(<a 
name="line.100"></a>
+<span class="sourceLineNo">101</span>      f -&gt; 
ColumnFamilyDescriptorBuilder.newBuilder(f).setMaxVersions(Integer.MAX_VALUE).build())<a
 name="line.101"></a>
+<span class="sourceLineNo">102</span>        
.forEachOrdered(builder::addColumnFamily);<a name="line.102"></a>
+<span class="sourceLineNo">103</span>    return builder.build();<a 
name="line.103"></a>
+<span class="sourceLineNo">104</span>  }<a name="line.104"></a>
+<span class="sourceLineNo">105</span><a name="line.105"></a>
+<span class="sourceLineNo">106</span>  private HRegion 
initHRegion(TableDescriptor htd, byte[] startKey, byte[] stopKey, int 
replicaId)<a name="line.106"></a>
+<span class="sourceLineNo">107</span>      throws IOException {<a 
name="line.107"></a>
+<span class="sourceLineNo">108</span>    Configuration conf = 
TEST_UTIL.getConfiguration();<a name="line.108"></a>
+<span class="sourceLineNo">109</span>    conf.set("hbase.wal.provider", 
walProvider);<a name="line.109"></a>
+<span class="sourceLineNo">110</span>    
conf.setBoolean("hbase.hregion.mvcc.preassign", false);<a name="line.110"></a>
+<span class="sourceLineNo">111</span>    Path tableDir = 
FSUtils.getTableDir(testDir, htd.getTableName());<a name="line.111"></a>
+<span class="sourceLineNo">112</span><a name="line.112"></a>
+<span class="sourceLineNo">113</span>    RegionInfo info = 
RegionInfoBuilder.newBuilder(htd.getTableName()).setStartKey(startKey)<a 
name="line.113"></a>
+<span class="sourceLineNo">114</span>        
.setEndKey(stopKey).setReplicaId(replicaId).setRegionId(0).build();<a 
name="line.114"></a>
+<span class="sourceLineNo">115</span>    fileSystem = 
tableDir.getFileSystem(conf);<a name="line.115"></a>
+<span class="sourceLineNo">116</span>    final Configuration walConf = new 
Configuration(conf);<a name="line.116"></a>
+<span class="sourceLineNo">117</span>    FSUtils.setRootDir(walConf, 
tableDir);<a name="line.117"></a>
+<span class="sourceLineNo">118</span>    this.walConf = walConf;<a 
name="line.118"></a>
+<span class="sourceLineNo">119</span>    wals = new WALFactory(walConf, null, 
"log_" + replicaId);<a name="line.119"></a>
+<span class="sourceLineNo">120</span>    
ChunkCreator.initialize(MemStoreLABImpl.CHUNK_SIZE_DEFAULT, false, 0, 0, 0, 
null);<a name="line.120"></a>
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wals.createReader(fileSystem, new Path(oldWalsDir, logPath.getName()));<a 
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Bytes.toBytes(0), 1);<a name="line.166"></a>
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TableName.valueOf(name.getMethodName().replaceAll("[^0-9A-Za-z_]", "_")), 
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name="line.196"></a>
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ArrayList&lt;&gt;();<a name="line.209"></a>
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((AbstractFSWAL&lt;?&gt;) region.getWAL()).getCurrentFileName();<a 
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name="line.221"></a>
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name="line.222"></a>
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Path(walConf.get(HConstants.HBASE_DIR));<a name="line.223"></a>
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HConstants.HREGION_OLDLOGDIR_NAME);<a name="line.224"></a>
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createReader(logPath, oldWalsDir)) {<a name="line.225"></a>
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name="line.226"></a>
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reader.next()) != null;) {<a name="line.227"></a>
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(!WALEdit.isMetaEditFamily(e.getEdit().getCells().get(0))) {<a 
name="line.228"></a>
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e.getKey().getSequenceId();<a name="line.229"></a>
+<span class="sourceLineNo">230</span>          if (currentSeqid &gt; 
currentMaxSeqid) {<a name="line.230"></a>
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currentSeqid;<a name="line.231"></a>
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+ currentMaxSeqid +<a name="line.233"></a>
+<span class="sourceLineNo">234</span>              ", but the next seqid in 
wal is smaller:" + currentSeqid);<a name="line.234"></a>
+<span class="sourceLineNo">235</span>          }<a name="line.235"></a>
+<span class="sourceLineNo">236</span>        }<a name="line.236"></a>
+<span class="sourceLineNo">237</span>      }<a name="line.237"></a>
+<span class="sourceLineNo">238</span>    }<a name="line.238"></a>
+<span class="sourceLineNo">239</span>  }<a name="line.239"></a>
+<span class="sourceLineNo">240</span>}<a name="line.240"></a>
 
 
 

http://git-wip-us.apache.org/repos/asf/hbase-site/blob/1473a64a/testdevapidocs/src-html/org/apache/hadoop/hbase/regionserver/TestWALMonotonicallyIncreasingSeqId.html
----------------------------------------------------------------------
diff --git 
a/testdevapidocs/src-html/org/apache/hadoop/hbase/regionserver/TestWALMonotonicallyIncreasingSeqId.html
 
b/testdevapidocs/src-html/org/apache/hadoop/hbase/regionserver/TestWALMonotonicallyIncreasingSeqId.html
index 06992c4..f5e1b5f 100644
--- 
a/testdevapidocs/src-html/org/apache/hadoop/hbase/regionserver/TestWALMonotonicallyIncreasingSeqId.html
+++ 
b/testdevapidocs/src-html/org/apache/hadoop/hbase/regionserver/TestWALMonotonicallyIncreasingSeqId.html
@@ -26,199 +26,226 @@
 <span class="sourceLineNo">018</span> */<a name="line.18"></a>
 <span class="sourceLineNo">019</span>package 
org.apache.hadoop.hbase.regionserver;<a name="line.19"></a>
 <span class="sourceLineNo">020</span><a name="line.20"></a>
-<span class="sourceLineNo">021</span>import org.apache.commons.logging.Log;<a 
name="line.21"></a>
-<span class="sourceLineNo">022</span>import 
org.apache.commons.logging.LogFactory;<a name="line.22"></a>
-<span class="sourceLineNo">023</span>import 
org.apache.hadoop.conf.Configuration;<a name="line.23"></a>
-<span class="sourceLineNo">024</span>import org.apache.hadoop.fs.FileSystem;<a 
name="line.24"></a>
-<span class="sourceLineNo">025</span>import org.apache.hadoop.fs.Path;<a 
name="line.25"></a>
-<span class="sourceLineNo">026</span>import org.apache.hadoop.hbase.*;<a 
name="line.26"></a>
-<span class="sourceLineNo">027</span>import 
org.apache.hadoop.hbase.client.*;<a name="line.27"></a>
-<span class="sourceLineNo">028</span>import 
org.apache.hadoop.hbase.regionserver.wal.FSHLog;<a name="line.28"></a>
-<span class="sourceLineNo">029</span>import 
org.apache.hadoop.hbase.wal.WALEdit;<a name="line.29"></a>
-<span class="sourceLineNo">030</span>import 
org.apache.hadoop.hbase.testclassification.RegionServerTests;<a 
name="line.30"></a>
-<span class="sourceLineNo">031</span>import 
org.apache.hadoop.hbase.testclassification.SmallTests;<a name="line.31"></a>
-<span class="sourceLineNo">032</span>import 
org.apache.hadoop.hbase.util.Bytes;<a name="line.32"></a>
-<span class="sourceLineNo">033</span>import 
org.apache.hadoop.hbase.util.FSUtils;<a name="line.33"></a>
-<span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.wal.WAL;<a 
name="line.34"></a>
-<span class="sourceLineNo">035</span>import 
org.apache.hadoop.hbase.wal.WALFactory;<a name="line.35"></a>
-<span class="sourceLineNo">036</span>import org.junit.Assert;<a 
name="line.36"></a>
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java.util.concurrent.CountDownLatch;<a name="line.45"></a>
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but pre-assign mvcc is only used in put/delete<a name="line.49"></a>
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increment/append still assign mvcc in ringbuffer's consumer<a 
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parallel. Then seqid in WAL may not increase monotonically<a name="line.51"></a>
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loss.<a name="line.52"></a>
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increment at the same time in a single region.<a name="line.53"></a>
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is wal is not monotonically increasing, this case will fail<a 
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TEST_UTIL.getDataTestDir("TestWALMonotonicallyIncreasingSeqId");<a 
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getTableDesc(TableName tableName, byte[]... families) {<a name="line.75"></a>
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hcd.setMaxVersions(Integer.MAX_VALUE);<a name="line.80"></a>
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replicaId)<a name="line.86"></a>
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conf.setBoolean("hbase.hregion.mvcc.preassign", false);<a name="line.89"></a>
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FSUtils.getTableDir(testDir, htd.getTableName());<a name="line.90"></a>
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HRegionInfo(htd.getTableName(), startKey, stopKey, false, 0, replicaId);<a 
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tableDir.getFileSystem(conf);<a name="line.93"></a>
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HRegionFileSystem(conf, fileSystem, tableDir, info);<a name="line.94"></a>
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Configuration(conf);<a name="line.95"></a>
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tableDir);<a name="line.96"></a>
-<span class="sourceLineNo">097</span>    this.walConf = walConf;<a 
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"log_" + replicaId);<a name="line.98"></a>
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ChunkCreator.initialize(MemStoreLABImpl.CHUNK_SIZE_DEFAULT, false, 0, 0, 0, 
null);<a name="line.99"></a>
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HRegion.createHRegion(info, TEST_UTIL.getDefaultRootDirPath(), conf, htd,<a 
name="line.100"></a>
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wals.getWAL(info.getEncodedNameAsBytes(), info.getTable().getNamespace()));<a 
name="line.101"></a>
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-<span class="sourceLineNo">103</span>  }<a name="line.103"></a>
-<span class="sourceLineNo">104</span><a name="line.104"></a>
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CountDownLatch(1);<a name="line.105"></a>
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{<a name="line.106"></a>
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-<span class="sourceLineNo">112</span>    @Override<a name="line.112"></a>
-<span class="sourceLineNo">113</span>    public void run() {<a 
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-<span class="sourceLineNo">114</span>      try {<a name="line.114"></a>
-<span class="sourceLineNo">115</span>        for(int i = 0; i &lt; 100; i++) 
{<a name="line.115"></a>
-<span class="sourceLineNo">116</span>          byte[] row = 
Bytes.toBytes("putRow" + i);<a name="line.116"></a>
-<span class="sourceLineNo">117</span>          Put put = new Put(row);<a 
name="line.117"></a>
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Bytes.toBytes(0), Bytes.toBytes(""));<a name="line.118"></a>
-<span class="sourceLineNo">119</span>          
//put.setDurability(Durability.ASYNC_WAL);<a name="line.119"></a>
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name="line.120"></a>
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Mutation[]{put});<a name="line.121"></a>
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+<span class="sourceLineNo">021</span>import static org.junit.Assert.fail;<a 
name="line.21"></a>
+<span class="sourceLineNo">022</span><a name="line.22"></a>
+<span class="sourceLineNo">023</span>import java.io.IOException;<a 
name="line.23"></a>
+<span class="sourceLineNo">024</span>import java.util.ArrayList;<a 
name="line.24"></a>
+<span class="sourceLineNo">025</span>import java.util.Arrays;<a 
name="line.25"></a>
+<span class="sourceLineNo">026</span>import java.util.List;<a 
name="line.26"></a>
+<span class="sourceLineNo">027</span>import 
java.util.concurrent.CountDownLatch;<a name="line.27"></a>
+<span class="sourceLineNo">028</span><a name="line.28"></a>
+<span class="sourceLineNo">029</span>import org.apache.commons.logging.Log;<a 
name="line.29"></a>
+<span class="sourceLineNo">030</span>import 
org.apache.commons.logging.LogFactory;<a name="line.30"></a>
+<span class="sourceLineNo">031</span>import 
org.apache.hadoop.conf.Configuration;<a name="line.31"></a>
+<span class="sourceLineNo">032</span>import org.apache.hadoop.fs.FileSystem;<a 
name="line.32"></a>
+<span class="sourceLineNo">033</span>import org.apache.hadoop.fs.Path;<a 
name="line.33"></a>
+<span class="sourceLineNo">034</span>import 
org.apache.hadoop.hbase.HBaseTestingUtility;<a name="line.34"></a>
+<span class="sourceLineNo">035</span>import 
org.apache.hadoop.hbase.HConstants;<a name="line.35"></a>
+<span class="sourceLineNo">036</span>import 
org.apache.hadoop.hbase.TableName;<a name="line.36"></a>
+<span class="sourceLineNo">037</span>import 
org.apache.hadoop.hbase.client.ColumnFamilyDescriptorBuilder;<a 
name="line.37"></a>
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org.apache.hadoop.hbase.client.Increment;<a name="line.38"></a>
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org.apache.hadoop.hbase.client.Mutation;<a name="line.39"></a>
+<span class="sourceLineNo">040</span>import 
org.apache.hadoop.hbase.client.Put;<a name="line.40"></a>
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org.apache.hadoop.hbase.client.RegionInfo;<a name="line.41"></a>
+<span class="sourceLineNo">042</span>import 
org.apache.hadoop.hbase.client.RegionInfoBuilder;<a name="line.42"></a>
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org.apache.hadoop.hbase.client.TableDescriptor;<a name="line.43"></a>
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org.apache.hadoop.hbase.client.TableDescriptorBuilder;<a name="line.44"></a>
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org.apache.hadoop.hbase.regionserver.wal.AbstractFSWAL;<a name="line.45"></a>
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org.apache.hadoop.hbase.testclassification.RegionServerTests;<a 
name="line.46"></a>
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org.apache.hadoop.hbase.testclassification.SmallTests;<a name="line.47"></a>
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org.apache.hadoop.hbase.util.Bytes;<a name="line.48"></a>
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org.apache.hadoop.hbase.util.FSUtils;<a name="line.49"></a>
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name="line.50"></a>
+<span class="sourceLineNo">051</span>import 
org.apache.hadoop.hbase.wal.WALEdit;<a name="line.51"></a>
+<span class="sourceLineNo">052</span>import 
org.apache.hadoop.hbase.wal.WALFactory;<a name="line.52"></a>
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name="line.53"></a>
+<span class="sourceLineNo">054</span>import org.junit.AfterClass;<a 
name="line.54"></a>
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name="line.55"></a>
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name="line.56"></a>
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name="line.57"></a>
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org.junit.experimental.categories.Category;<a name="line.58"></a>
+<span class="sourceLineNo">059</span>import org.junit.rules.TestName;<a 
name="line.59"></a>
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name="line.60"></a>
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name="line.61"></a>
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org.junit.runners.Parameterized.Parameter;<a name="line.62"></a>
+<span class="sourceLineNo">063</span>import 
org.junit.runners.Parameterized.Parameters;<a name="line.63"></a>
+<span class="sourceLineNo">064</span><a name="line.64"></a>
+<span class="sourceLineNo">065</span>/**<a name="line.65"></a>
+<span class="sourceLineNo">066</span> * Test for HBASE-17471.<a 
name="line.66"></a>
+<span class="sourceLineNo">067</span> * &lt;p&gt;<a name="line.67"></a>
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but pre-assign mvcc is only used in put/delete path. Other<a name="line.68"></a>
+<span class="sourceLineNo">069</span> * write paths like increment/append 
still assign mvcc in ringbuffer's consumer thread. If put and<a 
name="line.69"></a>
+<span class="sourceLineNo">070</span> * increment are used parallel. Then 
seqid in WAL may not increase monotonically Disorder in wals<a 
name="line.70"></a>
+<span class="sourceLineNo">071</span> * will lead to data loss.<a 
name="line.71"></a>
+<span class="sourceLineNo">072</span> * &lt;p&gt;<a name="line.72"></a>
+<span class="sourceLineNo">073</span> * This case use two thread to put and 
increment at the same time in a single region. Then check the<a 
name="line.73"></a>
+<span class="sourceLineNo">074</span> * seqid in WAL. If seqid is wal is not 
monotonically increasing, this case will fail<a name="line.74"></a>
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+<span class="sourceLineNo">076</span>@RunWith(Parameterized.class)<a 
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+<span class="sourceLineNo">077</span>@Category({ RegionServerTests.class, 
SmallTests.class })<a name="line.77"></a>
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TestWALMonotonicallyIncreasingSeqId {<a name="line.78"></a>
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LogFactory.getLog(getClass());<a name="line.79"></a>
+<span class="sourceLineNo">080</span>  private final static 
HBaseTestingUtility TEST_UTIL = new HBaseTestingUtility();<a name="line.80"></a>
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TEST_UTIL.getDataTestDir("TestWALMonotonicallyIncreasingSeqId");<a 
name="line.81"></a>
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name="line.82"></a>
+<span class="sourceLineNo">083</span>  private FileSystem fileSystem;<a 
name="line.83"></a>
+<span class="sourceLineNo">084</span>  private Configuration walConf;<a 
name="line.84"></a>
+<span class="sourceLineNo">085</span>  private HRegion region;<a 
name="line.85"></a>
+<span class="sourceLineNo">086</span><a name="line.86"></a>
+<span class="sourceLineNo">087</span>  @Parameter<a name="line.87"></a>
+<span class="sourceLineNo">088</span>  public String walProvider;<a 
name="line.88"></a>
+<span class="sourceLineNo">089</span><a name="line.89"></a>
+<span class="sourceLineNo">090</span>  @Rule<a name="line.90"></a>
+<span class="sourceLineNo">091</span>  public TestName name = new 
TestName();<a name="line.91"></a>
+<span class="sourceLineNo">092</span><a name="line.92"></a>
+<span class="sourceLineNo">093</span>  @Parameters(name = "{index}: 
wal={0}")<a name="line.93"></a>
+<span class="sourceLineNo">094</span>  public static List&lt;Object[]&gt; 
data() {<a name="line.94"></a>
+<span class="sourceLineNo">095</span>    return Arrays.asList(new Object[] { 
"asyncfs" }, new Object[] { "filesystem" });<a name="line.95"></a>
+<span class="sourceLineNo">096</span>  }<a name="line.96"></a>
+<span class="sourceLineNo">097</span><a name="line.97"></a>
+<span class="sourceLineNo">098</span>  private TableDescriptor 
getTableDesc(TableName tableName, byte[]... families) {<a name="line.98"></a>
+<span class="sourceLineNo">099</span>    TableDescriptorBuilder builder = 
TableDescriptorBuilder.newBuilder(tableName);<a name="line.99"></a>
+<span class="sourceLineNo">100</span>    Arrays.stream(families).map(<a 
name="line.100"></a>
+<span class="sourceLineNo">101</span>      f -&gt; 
ColumnFamilyDescriptorBuilder.newBuilder(f).setMaxVersions(Integer.MAX_VALUE).build())<a
 name="line.101"></a>
+<span class="sourceLineNo">102</span>        
.forEachOrdered(builder::addColumnFamily);<a name="line.102"></a>
+<span class="sourceLineNo">103</span>    return builder.build();<a 
name="line.103"></a>
+<span class="sourceLineNo">104</span>  }<a name="line.104"></a>
+<span class="sourceLineNo">105</span><a name="line.105"></a>
+<span class="sourceLineNo">106</span>  private HRegion 
initHRegion(TableDescriptor htd, byte[] startKey, byte[] stopKey, int 
replicaId)<a name="line.106"></a>
+<span class="sourceLineNo">107</span>      throws IOException {<a 
name="line.107"></a>
+<span class="sourceLineNo">108</span>    Configuration conf = 
TEST_UTIL.getConfiguration();<a name="line.108"></a>
+<span class="sourceLineNo">109</span>    conf.set("hbase.wal.provider", 
walProvider);<a name="line.109"></a>
+<span class="sourceLineNo">110</span>    
conf.setBoolean("hbase.hregion.mvcc.preassign", false);<a name="line.110"></a>
+<span class="sourceLineNo">111</span>    Path tableDir = 
FSUtils.getTableDir(testDir, htd.getTableName());<a name="line.111"></a>
+<span class="sourceLineNo">112</span><a name="line.112"></a>
+<span class="sourceLineNo">113</span>    RegionInfo info = 
RegionInfoBuilder.newBuilder(htd.getTableName()).setStartKey(startKey)<a 
name="line.113"></a>
+<span class="sourceLineNo">114</span>        
.setEndKey(stopKey).setReplicaId(replicaId).setRegionId(0).build();<a 
name="line.114"></a>
+<span class="sourceLineNo">115</span>    fileSystem = 
tableDir.getFileSystem(conf);<a name="line.115"></a>
+<span class="sourceLineNo">116</span>    final Configuration walConf = new 
Configuration(conf);<a name="line.116"></a>
+<span class="sourceLineNo">117</span>    FSUtils.setRootDir(walConf, 
tableDir);<a name="line.117"></a>
+<span class="sourceLineNo">118</span>    this.walConf = walConf;<a 
name="line.118"></a>
+<span class="sourceLineNo">119</span>    wals = new WALFactory(walConf, null, 
"log_" + replicaId);<a name="line.119"></a>
+<span class="sourceLineNo">120</span>    
ChunkCreator.initialize(MemStoreLABImpl.CHUNK_SIZE_DEFAULT, false, 0, 0, 0, 
null);<a name="line.120"></a>
+<span class="sourceLineNo">121</span>    HRegion region = 
HRegion.createHRegion(info, TEST_UTIL.getDefaultRootDirPath(), conf, htd,<a 
name="line.121"></a>
+<span class="sourceLineNo">122</span>      
wals.getWAL(info.getEncodedNameAsBytes(), info.getTable().getNamespace()));<a 
name="line.122"></a>
+<span class="sourceLineNo">123</span>    return region;<a name="line.123"></a>
+<span class="sourceLineNo">124</span>  }<a name="line.124"></a>
 <span class="sourceLineNo">125</span><a name="line.125"></a>
-<span class="sourceLineNo">126</span>      } catch (Throwable t) {<a 
name="line.126"></a>
-<span class="sourceLineNo">127</span>        LOG.warn("Error happend when 
Increment: ", t);<a name="line.127"></a>
-<span class="sourceLineNo">128</span>      }<a name="line.128"></a>
-<span class="sourceLineNo">129</span><a name="line.129"></a>
-<span class="sourceLineNo">130</span>    }<a name="line.130"></a>
-<span class="sourceLineNo">131</span>  }<a name="line.131"></a>
-<span class="sourceLineNo">132</span><a name="line.132"></a>
-<span class="sourceLineNo">133</span>  public class IncThread extends Thread 
{<a name="line.133"></a>
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-<span class="sourceLineNo">135</span>    public IncThread(HRegion region) {<a 
name="line.135"></a>
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name="line.136"></a>
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-<span class="sourceLineNo">138</span>    @Override<a name="line.138"></a>
-<span class="sourceLineNo">139</span>    public void run() {<a 
name="line.139"></a>
-<span class="sourceLineNo">140</span>      try {<a name="line.140"></a>
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{<a name="line.141"></a>
-<span class="sourceLineNo">142</span>          byte[] row = 
Bytes.toBytes("incrementRow" + i);<a name="line.142"></a>
-<span class="sourceLineNo">143</span>          Increment inc = new 
Increment(row);<a name="line.143"></a>
-<span class="sourceLineNo">144</span>          inc.addColumn("cf".getBytes(), 
Bytes.toBytes(0), 1);<a name="line.144"></a>
-<span class="sourceLineNo">145</span>          
//inc.setDurability(Durability.ASYNC_WAL);<a name="line.145"></a>
-<span class="sourceLineNo">146</span>          region.increment(inc);<a 
name="line.146"></a>
-<span class="sourceLineNo">147</span>          latch.countDown();<a 
name="line.147"></a>
-<span class="sourceLineNo">148</span>          Thread.sleep(10);<a 
name="line.148"></a>
-<span class="sourceLineNo">149</span>        }<a name="line.149"></a>
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createReader(logPath, oldWalsDir)) {<a name="line.225"></a>
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reader.next()) != null;) {<a name="line.227"></a>
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(!WALEdit.isMetaEditFamily(e.getEdit().getCells().get(0))) {<a 
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e.getKey().getSequenceId();<a name="line.229"></a>
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currentMaxSeqid) {<a name="line.230"></a>
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+ currentMaxSeqid +<a name="line.233"></a>
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+<span class="sourceLineNo">236</span>        }<a name="line.236"></a>
+<span class="sourceLineNo">237</span>      }<a name="line.237"></a>
+<span class="sourceLineNo">238</span>    }<a name="line.238"></a>
+<span class="sourceLineNo">239</span>  }<a name="line.239"></a>
+<span class="sourceLineNo">240</span>}<a name="line.240"></a>
 
 
 

http://git-wip-us.apache.org/repos/asf/hbase-site/blob/1473a64a/testdevapidocs/src-html/org/apache/hadoop/hbase/regionserver/compactions/TestCompactedHFilesDischarger.ScanThread.html
----------------------------------------------------------------------
diff --git 
a/testdevapidocs/src-html/org/apache/hadoop/hbase/regionserver/compactions/TestCompactedHFilesDischarger.ScanThread.html
 
b/testdevapidocs/src-html/org/apache/hadoop/hbase/regionserver/compactions/TestCompactedHFilesDischarger.ScanThread.html
index 51d8a6a..fc531fc 100644
--- 
a/testdevapidocs/src-html/org/apache/hadoop/hbase/regionserver/compactions/TestCompactedHFilesDischarger.ScanThread.html
+++ 
b/testdevapidocs/src-html/org/apache/hadoop/hbase/regionserver/compactions/TestCompactedHFilesDischarger.ScanThread.html
@@ -391,8 +391,8 @@
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scanCompletedCounter.incrementAndGet();<a name="line.390"></a>

http://git-wip-us.apache.org/repos/asf/hbase-site/blob/1473a64a/testdevapidocs/src-html/org/apache/hadoop/hbase/regionserver/compactions/TestCompactedHFilesDischarger.html
----------------------------------------------------------------------
diff --git 
a/testdevapidocs/src-html/org/apache/hadoop/hbase/regionserver/compactions/TestCompactedHFilesDischarger.html
 
b/testdevapidocs/src-html/org/apache/hadoop/hbase/regionserver/compactions/TestCompactedHFilesDischarger.html
index 51d8a6a..fc531fc 100644
--- 
a/testdevapidocs/src-html/org/apache/hadoop/hbase/regionserver/compactions/TestCompactedHFilesDischarger.html
+++ 
b/testdevapidocs/src-html/org/apache/hadoop/hbase/regionserver/compactions/TestCompactedHFilesDischarger.html
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scanCompletedCounter.incrementAndGet();<a name="line.390"></a>