[02/51] [partial] hbase-site git commit: Published site at .

Tue, 15 Aug 2017 08:06:44 -0700 

http://git-wip-us.apache.org/repos/asf/hbase-site/blob/07e68d46/testdevapidocs/src-html/org/apache/hadoop/hbase/io/hfile/bucket/TestBucketWriterThread.MockBucketCache.html
----------------------------------------------------------------------
diff --git 
a/testdevapidocs/src-html/org/apache/hadoop/hbase/io/hfile/bucket/TestBucketWriterThread.MockBucketCache.html
 
b/testdevapidocs/src-html/org/apache/hadoop/hbase/io/hfile/bucket/TestBucketWriterThread.MockBucketCache.html
index 6e5ace7..1139eb3 100644
--- 
a/testdevapidocs/src-html/org/apache/hadoop/hbase/io/hfile/bucket/TestBucketWriterThread.MockBucketCache.html
+++ 
b/testdevapidocs/src-html/org/apache/hadoop/hbase/io/hfile/bucket/TestBucketWriterThread.MockBucketCache.html
@@ -27,163 +27,164 @@
 <span class="sourceLineNo">019</span>package 
org.apache.hadoop.hbase.io.hfile.bucket;<a name="line.19"></a>
 <span class="sourceLineNo">020</span><a name="line.20"></a>
 <span class="sourceLineNo">021</span>import 
org.apache.hadoop.hbase.testclassification.IOTests;<a name="line.21"></a>
-<span class="sourceLineNo">022</span>import 
org.apache.hadoop.hbase.testclassification.SmallTests;<a name="line.22"></a>
-<span class="sourceLineNo">023</span>import 
org.apache.hadoop.hbase.io.hfile.BlockCacheKey;<a name="line.23"></a>
-<span class="sourceLineNo">024</span>import 
org.apache.hadoop.hbase.io.hfile.Cacheable;<a name="line.24"></a>
-<span class="sourceLineNo">025</span>import 
org.apache.hadoop.hbase.io.hfile.bucket.BucketCache.BucketEntry;<a 
name="line.25"></a>
-<span class="sourceLineNo">026</span>import 
org.apache.hadoop.hbase.io.hfile.bucket.BucketCache.RAMQueueEntry;<a 
name="line.26"></a>
-<span class="sourceLineNo">027</span>import org.junit.After;<a 
name="line.27"></a>
-<span class="sourceLineNo">028</span>import org.junit.Before;<a 
name="line.28"></a>
-<span class="sourceLineNo">029</span>import org.junit.Test;<a 
name="line.29"></a>
-<span class="sourceLineNo">030</span>import 
org.junit.experimental.categories.Category;<a name="line.30"></a>
-<span class="sourceLineNo">031</span>import org.mockito.Mockito;<a 
name="line.31"></a>
-<span class="sourceLineNo">032</span><a name="line.32"></a>
-<span class="sourceLineNo">033</span>import java.io.FileNotFoundException;<a 
name="line.33"></a>
-<span class="sourceLineNo">034</span>import java.io.IOException;<a 
name="line.34"></a>
-<span class="sourceLineNo">035</span>import java.util.ArrayList;<a 
name="line.35"></a>
-<span class="sourceLineNo">036</span>import java.util.List;<a 
name="line.36"></a>
-<span class="sourceLineNo">037</span>import 
java.util.concurrent.BlockingQueue;<a name="line.37"></a>
-<span class="sourceLineNo">038</span>import 
java.util.concurrent.atomic.AtomicLong;<a name="line.38"></a>
-<span class="sourceLineNo">039</span><a name="line.39"></a>
-<span class="sourceLineNo">040</span>import static 
org.hamcrest.CoreMatchers.is;<a name="line.40"></a>
-<span class="sourceLineNo">041</span>import static 
org.junit.Assert.assertEquals;<a name="line.41"></a>
-<span class="sourceLineNo">042</span>import static 
org.junit.Assert.assertThat;<a name="line.42"></a>
-<span class="sourceLineNo">043</span>import static 
org.junit.Assert.assertTrue;<a name="line.43"></a>
-<span class="sourceLineNo">044</span><a name="line.44"></a>
-<span class="sourceLineNo">045</span>@Category({IOTests.class, 
SmallTests.class})<a name="line.45"></a>
-<span class="sourceLineNo">046</span>public class TestBucketWriterThread {<a 
name="line.46"></a>
-<span class="sourceLineNo">047</span>  private BucketCache bc;<a 
name="line.47"></a>
-<span class="sourceLineNo">048</span>  private BucketCache.WriterThread wt;<a 
name="line.48"></a>
-<span class="sourceLineNo">049</span>  private 
BlockingQueue&lt;RAMQueueEntry&gt; q;<a name="line.49"></a>
-<span class="sourceLineNo">050</span>  private Cacheable plainCacheable;<a 
name="line.50"></a>
-<span class="sourceLineNo">051</span>  private BlockCacheKey plainKey;<a 
name="line.51"></a>
-<span class="sourceLineNo">052</span><a name="line.52"></a>
-<span class="sourceLineNo">053</span>  /** A BucketCache that does not start 
its writer threads. */<a name="line.53"></a>
-<span class="sourceLineNo">054</span>  private static class MockBucketCache 
extends BucketCache {<a name="line.54"></a>
-<span class="sourceLineNo">055</span><a name="line.55"></a>
-<span class="sourceLineNo">056</span>    public MockBucketCache(String 
ioEngineName, long capacity, int blockSize, int[] bucketSizes,<a 
name="line.56"></a>
-<span class="sourceLineNo">057</span>      int writerThreadNum, int 
writerQLen, String persistencePath, int ioErrorsTolerationDuration)<a 
name="line.57"></a>
-<span class="sourceLineNo">058</span>      throws FileNotFoundException, 
IOException {<a name="line.58"></a>
-<span class="sourceLineNo">059</span>      super(ioEngineName, capacity, 
blockSize, bucketSizes, writerThreadNum, writerQLen,<a name="line.59"></a>
-<span class="sourceLineNo">060</span>        persistencePath, 
ioErrorsTolerationDuration);<a name="line.60"></a>
-<span class="sourceLineNo">061</span>    }<a name="line.61"></a>
-<span class="sourceLineNo">062</span><a name="line.62"></a>
-<span class="sourceLineNo">063</span>    @Override<a name="line.63"></a>
-<span class="sourceLineNo">064</span>    protected void startWriterThreads() 
{<a name="line.64"></a>
-<span class="sourceLineNo">065</span>      // intentional noop<a 
name="line.65"></a>
-<span class="sourceLineNo">066</span>    }<a name="line.66"></a>
-<span class="sourceLineNo">067</span>  }<a name="line.67"></a>
-<span class="sourceLineNo">068</span><a name="line.68"></a>
-<span class="sourceLineNo">069</span>  /**<a name="line.69"></a>
-<span class="sourceLineNo">070</span>   * Set up variables and get BucketCache 
and WriterThread into state where tests can  manually<a name="line.70"></a>
-<span class="sourceLineNo">071</span>   * control the running of WriterThread 
and BucketCache is empty.<a name="line.71"></a>
-<span class="sourceLineNo">072</span>   * @throws Exception<a 
name="line.72"></a>
-<span class="sourceLineNo">073</span>   */<a name="line.73"></a>
-<span class="sourceLineNo">074</span>  @Before<a name="line.74"></a>
-<span class="sourceLineNo">075</span>  public void setUp() throws Exception 
{<a name="line.75"></a>
-<span class="sourceLineNo">076</span>    // Arbitrary capacity.<a 
name="line.76"></a>
-<span class="sourceLineNo">077</span>    final int capacity = 16;<a 
name="line.77"></a>
-<span class="sourceLineNo">078</span>    // Run with one writer thread only. 
Means there will be one writer queue only too.  We depend<a name="line.78"></a>
-<span class="sourceLineNo">079</span>    // on this in below.<a 
name="line.79"></a>
-<span class="sourceLineNo">080</span>    final int writerThreadsCount = 1;<a 
name="line.80"></a>
-<span class="sourceLineNo">081</span>    this.bc = new MockBucketCache("heap", 
capacity, 1, new int [] {1}, writerThreadsCount,<a name="line.81"></a>
-<span class="sourceLineNo">082</span>      capacity, null, 100/*Tolerate 
ioerrors for 100ms*/);<a name="line.82"></a>
-<span class="sourceLineNo">083</span>    assertEquals(writerThreadsCount, 
bc.writerThreads.length);<a name="line.83"></a>
-<span class="sourceLineNo">084</span>    assertEquals(writerThreadsCount, 
bc.writerQueues.size());<a name="line.84"></a>
-<span class="sourceLineNo">085</span>    // Get reference to our single 
WriterThread instance.<a name="line.85"></a>
-<span class="sourceLineNo">086</span>    this.wt = bc.writerThreads[0];<a 
name="line.86"></a>
-<span class="sourceLineNo">087</span>    this.q = bc.writerQueues.get(0);<a 
name="line.87"></a>
-<span class="sourceLineNo">088</span><a name="line.88"></a>
-<span class="sourceLineNo">089</span>    wt.disableWriter();<a 
name="line.89"></a>
-<span class="sourceLineNo">090</span>    this.plainKey = new 
BlockCacheKey("f", 0);<a name="line.90"></a>
-<span class="sourceLineNo">091</span>    this.plainCacheable = 
Mockito.mock(Cacheable.class);<a name="line.91"></a>
-<span class="sourceLineNo">092</span><a name="line.92"></a>
-<span class="sourceLineNo">093</span>    assertThat(bc.ramCache.isEmpty(), 
is(true));<a name="line.93"></a>
-<span class="sourceLineNo">094</span>    assertTrue(q.isEmpty());<a 
name="line.94"></a>
-<span class="sourceLineNo">095</span>  }<a name="line.95"></a>
-<span class="sourceLineNo">096</span><a name="line.96"></a>
-<span class="sourceLineNo">097</span>  @After<a name="line.97"></a>
-<span class="sourceLineNo">098</span>  public void tearDown() throws Exception 
{<a name="line.98"></a>
-<span class="sourceLineNo">099</span>    if (this.bc != null) 
this.bc.shutdown();<a name="line.99"></a>
-<span class="sourceLineNo">100</span>  }<a name="line.100"></a>
-<span class="sourceLineNo">101</span><a name="line.101"></a>
-<span class="sourceLineNo">102</span>  /**<a name="line.102"></a>
-<span class="sourceLineNo">103</span>   * Test non-error case just works.<a 
name="line.103"></a>
-<span class="sourceLineNo">104</span>   * @throws FileNotFoundException<a 
name="line.104"></a>
-<span class="sourceLineNo">105</span>   * @throws IOException<a 
name="line.105"></a>
-<span class="sourceLineNo">106</span>   * @throws InterruptedException<a 
name="line.106"></a>
-<span class="sourceLineNo">107</span>   */<a name="line.107"></a>
-<span class="sourceLineNo">108</span>  @Test (timeout=30000)<a 
name="line.108"></a>
-<span class="sourceLineNo">109</span>  public void testNonErrorCase() throws 
IOException, InterruptedException {<a name="line.109"></a>
-<span class="sourceLineNo">110</span>    bc.cacheBlock(this.plainKey, 
this.plainCacheable);<a name="line.110"></a>
-<span class="sourceLineNo">111</span>    doDrainOfOneEntry(this.bc, this.wt, 
this.q);<a name="line.111"></a>
-<span class="sourceLineNo">112</span>  }<a name="line.112"></a>
-<span class="sourceLineNo">113</span><a name="line.113"></a>
-<span class="sourceLineNo">114</span>  /**<a name="line.114"></a>
-<span class="sourceLineNo">115</span>   * Pass through a too big entry and 
ensure it is cleared from queues and ramCache.<a name="line.115"></a>
-<span class="sourceLineNo">116</span>   * Manually run the WriterThread.<a 
name="line.116"></a>
-<span class="sourceLineNo">117</span>   * @throws InterruptedException<a 
name="line.117"></a>
-<span class="sourceLineNo">118</span>   */<a name="line.118"></a>
-<span class="sourceLineNo">119</span>  @Test<a name="line.119"></a>
-<span class="sourceLineNo">120</span>  public void testTooBigEntry() throws 
InterruptedException {<a name="line.120"></a>
-<span class="sourceLineNo">121</span>    Cacheable tooBigCacheable = 
Mockito.mock(Cacheable.class);<a name="line.121"></a>
-<span class="sourceLineNo">122</span>    
Mockito.when(tooBigCacheable.getSerializedLength()).thenReturn(Integer.MAX_VALUE);<a
 name="line.122"></a>
-<span class="sourceLineNo">123</span>    this.bc.cacheBlock(this.plainKey, 
tooBigCacheable);<a name="line.123"></a>
-<span class="sourceLineNo">124</span>    doDrainOfOneEntry(this.bc, this.wt, 
this.q);<a name="line.124"></a>
-<span class="sourceLineNo">125</span>  }<a name="line.125"></a>
-<span class="sourceLineNo">126</span><a name="line.126"></a>
-<span class="sourceLineNo">127</span>  /**<a name="line.127"></a>
-<span class="sourceLineNo">128</span>   * Do IOE. Take the RAMQueueEntry that 
was on the queue, doctor it to throw exception, then<a name="line.128"></a>
-<span class="sourceLineNo">129</span>   * put it back and process it.<a 
name="line.129"></a>
-<span class="sourceLineNo">130</span>   * @throws IOException<a 
name="line.130"></a>
-<span class="sourceLineNo">131</span>   * @throws InterruptedException<a 
name="line.131"></a>
-<span class="sourceLineNo">132</span>   */<a name="line.132"></a>
-<span class="sourceLineNo">133</span>  @SuppressWarnings("unchecked")<a 
name="line.133"></a>
-<span class="sourceLineNo">134</span>  @Test (timeout=30000)<a 
name="line.134"></a>
-<span class="sourceLineNo">135</span>  public void testIOE() throws 
IOException, InterruptedException {<a name="line.135"></a>
-<span class="sourceLineNo">136</span>    this.bc.cacheBlock(this.plainKey, 
plainCacheable);<a name="line.136"></a>
-<span class="sourceLineNo">137</span>    RAMQueueEntry rqe = q.remove();<a 
name="line.137"></a>
-<span class="sourceLineNo">138</span>    RAMQueueEntry spiedRqe = 
Mockito.spy(rqe);<a name="line.138"></a>
-<span class="sourceLineNo">139</span>    Mockito.doThrow(new 
IOException("Mocked!")).when(spiedRqe).<a name="line.139"></a>
-<span class="sourceLineNo">140</span>      
writeToCache((IOEngine)Mockito.any(), (BucketAllocator)Mockito.any(),<a 
name="line.140"></a>
-<span class="sourceLineNo">141</span>        
(UniqueIndexMap&lt;Integer&gt;)Mockito.any(), (AtomicLong)Mockito.any());<a 
name="line.141"></a>
-<span class="sourceLineNo">142</span>    this.q.add(spiedRqe);<a 
name="line.142"></a>
-<span class="sourceLineNo">143</span>    doDrainOfOneEntry(bc, wt, q);<a 
name="line.143"></a>
-<span class="sourceLineNo">144</span>    // Cache disabled when ioes w/o ever 
healing.<a name="line.144"></a>
-<span class="sourceLineNo">145</span>    assertTrue(!bc.isCacheEnabled());<a 
name="line.145"></a>
-<span class="sourceLineNo">146</span>  }<a name="line.146"></a>
-<span class="sourceLineNo">147</span><a name="line.147"></a>
-<span class="sourceLineNo">148</span>  /**<a name="line.148"></a>
-<span class="sourceLineNo">149</span>   * Do Cache full exception<a 
name="line.149"></a>
-<span class="sourceLineNo">150</span>   * @throws IOException<a 
name="line.150"></a>
-<span class="sourceLineNo">151</span>   * @throws InterruptedException<a 
name="line.151"></a>
-<span class="sourceLineNo">152</span>   */<a name="line.152"></a>
-<span class="sourceLineNo">153</span>  @Test (timeout=30000)<a 
name="line.153"></a>
-<span class="sourceLineNo">154</span>  public void testCacheFullException()<a 
name="line.154"></a>
-<span class="sourceLineNo">155</span>      throws IOException, 
InterruptedException {<a name="line.155"></a>
-<span class="sourceLineNo">156</span>    this.bc.cacheBlock(this.plainKey, 
plainCacheable);<a name="line.156"></a>
-<span class="sourceLineNo">157</span>    RAMQueueEntry rqe = q.remove();<a 
name="line.157"></a>
-<span class="sourceLineNo">158</span>    RAMQueueEntry spiedRqe = 
Mockito.spy(rqe);<a name="line.158"></a>
-<span class="sourceLineNo">159</span>    final CacheFullException cfe = new 
CacheFullException(0, 0);<a name="line.159"></a>
-<span class="sourceLineNo">160</span>    BucketEntry mockedBucketEntry = 
Mockito.mock(BucketEntry.class);<a name="line.160"></a>
-<span class="sourceLineNo">161</span>    Mockito.doThrow(cfe).<a 
name="line.161"></a>
-<span class="sourceLineNo">162</span>      doReturn(mockedBucketEntry).<a 
name="line.162"></a>
-<span class="sourceLineNo">163</span>      
when(spiedRqe).writeToCache((IOEngine)Mockito.any(), 
(BucketAllocator)Mockito.any(),<a name="line.163"></a>
-<span class="sourceLineNo">164</span>        
(UniqueIndexMap&lt;Integer&gt;)Mockito.any(), (AtomicLong)Mockito.any());<a 
name="line.164"></a>
-<span class="sourceLineNo">165</span>    this.q.add(spiedRqe);<a 
name="line.165"></a>
-<span class="sourceLineNo">166</span>    doDrainOfOneEntry(bc, wt, q);<a 
name="line.166"></a>
-<span class="sourceLineNo">167</span>  }<a name="line.167"></a>
-<span class="sourceLineNo">168</span><a name="line.168"></a>
-<span class="sourceLineNo">169</span>  private static void 
doDrainOfOneEntry(final BucketCache bc, final BucketCache.WriterThread wt,<a 
name="line.169"></a>
-<span class="sourceLineNo">170</span>      final 
BlockingQueue&lt;RAMQueueEntry&gt; q)<a name="line.170"></a>
-<span class="sourceLineNo">171</span>  throws InterruptedException {<a 
name="line.171"></a>
-<span class="sourceLineNo">172</span>    List&lt;RAMQueueEntry&gt; rqes = 
BucketCache.getRAMQueueEntries(q, new ArrayList&lt;&gt;(1));<a 
name="line.172"></a>
-<span class="sourceLineNo">173</span>    wt.doDrain(rqes);<a 
name="line.173"></a>
-<span class="sourceLineNo">174</span>    assertTrue(q.isEmpty());<a 
name="line.174"></a>
-<span class="sourceLineNo">175</span>    assertTrue(bc.ramCache.isEmpty());<a 
name="line.175"></a>
-<span class="sourceLineNo">176</span>    assertEquals(0, bc.heapSize());<a 
name="line.176"></a>
-<span class="sourceLineNo">177</span>  }<a name="line.177"></a>
-<span class="sourceLineNo">178</span>}<a name="line.178"></a>
+<span class="sourceLineNo">022</span>import 
org.apache.hadoop.hbase.HBaseConfiguration;<a name="line.22"></a>
+<span class="sourceLineNo">023</span>import 
org.apache.hadoop.hbase.testclassification.SmallTests;<a name="line.23"></a>
+<span class="sourceLineNo">024</span>import 
org.apache.hadoop.hbase.io.hfile.BlockCacheKey;<a name="line.24"></a>
+<span class="sourceLineNo">025</span>import 
org.apache.hadoop.hbase.io.hfile.Cacheable;<a name="line.25"></a>
+<span class="sourceLineNo">026</span>import 
org.apache.hadoop.hbase.io.hfile.bucket.BucketCache.BucketEntry;<a 
name="line.26"></a>
+<span class="sourceLineNo">027</span>import 
org.apache.hadoop.hbase.io.hfile.bucket.BucketCache.RAMQueueEntry;<a 
name="line.27"></a>
+<span class="sourceLineNo">028</span>import org.junit.After;<a 
name="line.28"></a>
+<span class="sourceLineNo">029</span>import org.junit.Before;<a 
name="line.29"></a>
+<span class="sourceLineNo">030</span>import org.junit.Test;<a 
name="line.30"></a>
+<span class="sourceLineNo">031</span>import 
org.junit.experimental.categories.Category;<a name="line.31"></a>
+<span class="sourceLineNo">032</span>import org.mockito.Mockito;<a 
name="line.32"></a>
+<span class="sourceLineNo">033</span><a name="line.33"></a>
+<span class="sourceLineNo">034</span>import java.io.FileNotFoundException;<a 
name="line.34"></a>
+<span class="sourceLineNo">035</span>import java.io.IOException;<a 
name="line.35"></a>
+<span class="sourceLineNo">036</span>import java.util.ArrayList;<a 
name="line.36"></a>
+<span class="sourceLineNo">037</span>import java.util.List;<a 
name="line.37"></a>
+<span class="sourceLineNo">038</span>import 
java.util.concurrent.BlockingQueue;<a name="line.38"></a>
+<span class="sourceLineNo">039</span>import 
java.util.concurrent.atomic.AtomicLong;<a name="line.39"></a>
+<span class="sourceLineNo">040</span><a name="line.40"></a>
+<span class="sourceLineNo">041</span>import static 
org.hamcrest.CoreMatchers.is;<a name="line.41"></a>
+<span class="sourceLineNo">042</span>import static 
org.junit.Assert.assertEquals;<a name="line.42"></a>
+<span class="sourceLineNo">043</span>import static 
org.junit.Assert.assertThat;<a name="line.43"></a>
+<span class="sourceLineNo">044</span>import static 
org.junit.Assert.assertTrue;<a name="line.44"></a>
+<span class="sourceLineNo">045</span><a name="line.45"></a>
+<span class="sourceLineNo">046</span>@Category({IOTests.class, 
SmallTests.class})<a name="line.46"></a>
+<span class="sourceLineNo">047</span>public class TestBucketWriterThread {<a 
name="line.47"></a>
+<span class="sourceLineNo">048</span>  private BucketCache bc;<a 
name="line.48"></a>
+<span class="sourceLineNo">049</span>  private BucketCache.WriterThread wt;<a 
name="line.49"></a>
+<span class="sourceLineNo">050</span>  private 
BlockingQueue&lt;RAMQueueEntry&gt; q;<a name="line.50"></a>
+<span class="sourceLineNo">051</span>  private Cacheable plainCacheable;<a 
name="line.51"></a>
+<span class="sourceLineNo">052</span>  private BlockCacheKey plainKey;<a 
name="line.52"></a>
+<span class="sourceLineNo">053</span><a name="line.53"></a>
+<span class="sourceLineNo">054</span>  /** A BucketCache that does not start 
its writer threads. */<a name="line.54"></a>
+<span class="sourceLineNo">055</span>  private static class MockBucketCache 
extends BucketCache {<a name="line.55"></a>
+<span class="sourceLineNo">056</span><a name="line.56"></a>
+<span class="sourceLineNo">057</span>    public MockBucketCache(String 
ioEngineName, long capacity, int blockSize, int[] bucketSizes,<a 
name="line.57"></a>
+<span class="sourceLineNo">058</span>      int writerThreadNum, int 
writerQLen, String persistencePath, int ioErrorsTolerationDuration)<a 
name="line.58"></a>
+<span class="sourceLineNo">059</span>      throws FileNotFoundException, 
IOException {<a name="line.59"></a>
+<span class="sourceLineNo">060</span>      super(ioEngineName, capacity, 
blockSize, bucketSizes, writerThreadNum, writerQLen,<a name="line.60"></a>
+<span class="sourceLineNo">061</span>        persistencePath, 
ioErrorsTolerationDuration, HBaseConfiguration.create());<a name="line.61"></a>
+<span class="sourceLineNo">062</span>    }<a name="line.62"></a>
+<span class="sourceLineNo">063</span><a name="line.63"></a>
+<span class="sourceLineNo">064</span>    @Override<a name="line.64"></a>
+<span class="sourceLineNo">065</span>    protected void startWriterThreads() 
{<a name="line.65"></a>
+<span class="sourceLineNo">066</span>      // intentional noop<a 
name="line.66"></a>
+<span class="sourceLineNo">067</span>    }<a name="line.67"></a>
+<span class="sourceLineNo">068</span>  }<a name="line.68"></a>
+<span class="sourceLineNo">069</span><a name="line.69"></a>
+<span class="sourceLineNo">070</span>  /**<a name="line.70"></a>
+<span class="sourceLineNo">071</span>   * Set up variables and get BucketCache 
and WriterThread into state where tests can  manually<a name="line.71"></a>
+<span class="sourceLineNo">072</span>   * control the running of WriterThread 
and BucketCache is empty.<a name="line.72"></a>
+<span class="sourceLineNo">073</span>   * @throws Exception<a 
name="line.73"></a>
+<span class="sourceLineNo">074</span>   */<a name="line.74"></a>
+<span class="sourceLineNo">075</span>  @Before<a name="line.75"></a>
+<span class="sourceLineNo">076</span>  public void setUp() throws Exception 
{<a name="line.76"></a>
+<span class="sourceLineNo">077</span>    // Arbitrary capacity.<a 
name="line.77"></a>
+<span class="sourceLineNo">078</span>    final int capacity = 16;<a 
name="line.78"></a>
+<span class="sourceLineNo">079</span>    // Run with one writer thread only. 
Means there will be one writer queue only too.  We depend<a name="line.79"></a>
+<span class="sourceLineNo">080</span>    // on this in below.<a 
name="line.80"></a>
+<span class="sourceLineNo">081</span>    final int writerThreadsCount = 1;<a 
name="line.81"></a>
+<span class="sourceLineNo">082</span>    this.bc = new MockBucketCache("heap", 
capacity, 1, new int [] {1}, writerThreadsCount,<a name="line.82"></a>
+<span class="sourceLineNo">083</span>      capacity, null, 100/*Tolerate 
ioerrors for 100ms*/);<a name="line.83"></a>
+<span class="sourceLineNo">084</span>    assertEquals(writerThreadsCount, 
bc.writerThreads.length);<a name="line.84"></a>
+<span class="sourceLineNo">085</span>    assertEquals(writerThreadsCount, 
bc.writerQueues.size());<a name="line.85"></a>
+<span class="sourceLineNo">086</span>    // Get reference to our single 
WriterThread instance.<a name="line.86"></a>
+<span class="sourceLineNo">087</span>    this.wt = bc.writerThreads[0];<a 
name="line.87"></a>
+<span class="sourceLineNo">088</span>    this.q = bc.writerQueues.get(0);<a 
name="line.88"></a>
+<span class="sourceLineNo">089</span><a name="line.89"></a>
+<span class="sourceLineNo">090</span>    wt.disableWriter();<a 
name="line.90"></a>
+<span class="sourceLineNo">091</span>    this.plainKey = new 
BlockCacheKey("f", 0);<a name="line.91"></a>
+<span class="sourceLineNo">092</span>    this.plainCacheable = 
Mockito.mock(Cacheable.class);<a name="line.92"></a>
+<span class="sourceLineNo">093</span><a name="line.93"></a>
+<span class="sourceLineNo">094</span>    assertThat(bc.ramCache.isEmpty(), 
is(true));<a name="line.94"></a>
+<span class="sourceLineNo">095</span>    assertTrue(q.isEmpty());<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>  @After<a name="line.98"></a>
+<span class="sourceLineNo">099</span>  public void tearDown() throws Exception 
{<a name="line.99"></a>
+<span class="sourceLineNo">100</span>    if (this.bc != null) 
this.bc.shutdown();<a name="line.100"></a>
+<span class="sourceLineNo">101</span>  }<a name="line.101"></a>
+<span class="sourceLineNo">102</span><a name="line.102"></a>
+<span class="sourceLineNo">103</span>  /**<a name="line.103"></a>
+<span class="sourceLineNo">104</span>   * Test non-error case just works.<a 
name="line.104"></a>
+<span class="sourceLineNo">105</span>   * @throws FileNotFoundException<a 
name="line.105"></a>
+<span class="sourceLineNo">106</span>   * @throws IOException<a 
name="line.106"></a>
+<span class="sourceLineNo">107</span>   * @throws InterruptedException<a 
name="line.107"></a>
+<span class="sourceLineNo">108</span>   */<a name="line.108"></a>
+<span class="sourceLineNo">109</span>  @Test (timeout=30000)<a 
name="line.109"></a>
+<span class="sourceLineNo">110</span>  public void testNonErrorCase() throws 
IOException, InterruptedException {<a name="line.110"></a>
+<span class="sourceLineNo">111</span>    bc.cacheBlock(this.plainKey, 
this.plainCacheable);<a name="line.111"></a>
+<span class="sourceLineNo">112</span>    doDrainOfOneEntry(this.bc, this.wt, 
this.q);<a name="line.112"></a>
+<span class="sourceLineNo">113</span>  }<a name="line.113"></a>
+<span class="sourceLineNo">114</span><a name="line.114"></a>
+<span class="sourceLineNo">115</span>  /**<a name="line.115"></a>
+<span class="sourceLineNo">116</span>   * Pass through a too big entry and 
ensure it is cleared from queues and ramCache.<a name="line.116"></a>
+<span class="sourceLineNo">117</span>   * Manually run the WriterThread.<a 
name="line.117"></a>
+<span class="sourceLineNo">118</span>   * @throws InterruptedException<a 
name="line.118"></a>
+<span class="sourceLineNo">119</span>   */<a name="line.119"></a>
+<span class="sourceLineNo">120</span>  @Test<a name="line.120"></a>
+<span class="sourceLineNo">121</span>  public void testTooBigEntry() throws 
InterruptedException {<a name="line.121"></a>
+<span class="sourceLineNo">122</span>    Cacheable tooBigCacheable = 
Mockito.mock(Cacheable.class);<a name="line.122"></a>
+<span class="sourceLineNo">123</span>    
Mockito.when(tooBigCacheable.getSerializedLength()).thenReturn(Integer.MAX_VALUE);<a
 name="line.123"></a>
+<span class="sourceLineNo">124</span>    this.bc.cacheBlock(this.plainKey, 
tooBigCacheable);<a name="line.124"></a>
+<span class="sourceLineNo">125</span>    doDrainOfOneEntry(this.bc, this.wt, 
this.q);<a name="line.125"></a>
+<span class="sourceLineNo">126</span>  }<a name="line.126"></a>
+<span class="sourceLineNo">127</span><a name="line.127"></a>
+<span class="sourceLineNo">128</span>  /**<a name="line.128"></a>
+<span class="sourceLineNo">129</span>   * Do IOE. Take the RAMQueueEntry that 
was on the queue, doctor it to throw exception, then<a name="line.129"></a>
+<span class="sourceLineNo">130</span>   * put it back and process it.<a 
name="line.130"></a>
+<span class="sourceLineNo">131</span>   * @throws IOException<a 
name="line.131"></a>
+<span class="sourceLineNo">132</span>   * @throws InterruptedException<a 
name="line.132"></a>
+<span class="sourceLineNo">133</span>   */<a name="line.133"></a>
+<span class="sourceLineNo">134</span>  @SuppressWarnings("unchecked")<a 
name="line.134"></a>
+<span class="sourceLineNo">135</span>  @Test (timeout=30000)<a 
name="line.135"></a>
+<span class="sourceLineNo">136</span>  public void testIOE() throws 
IOException, InterruptedException {<a name="line.136"></a>
+<span class="sourceLineNo">137</span>    this.bc.cacheBlock(this.plainKey, 
plainCacheable);<a name="line.137"></a>
+<span class="sourceLineNo">138</span>    RAMQueueEntry rqe = q.remove();<a 
name="line.138"></a>
+<span class="sourceLineNo">139</span>    RAMQueueEntry spiedRqe = 
Mockito.spy(rqe);<a name="line.139"></a>
+<span class="sourceLineNo">140</span>    Mockito.doThrow(new 
IOException("Mocked!")).when(spiedRqe).<a name="line.140"></a>
+<span class="sourceLineNo">141</span>      
writeToCache((IOEngine)Mockito.any(), (BucketAllocator)Mockito.any(),<a 
name="line.141"></a>
+<span class="sourceLineNo">142</span>        
(UniqueIndexMap&lt;Integer&gt;)Mockito.any(), (AtomicLong)Mockito.any());<a 
name="line.142"></a>
+<span class="sourceLineNo">143</span>    this.q.add(spiedRqe);<a 
name="line.143"></a>
+<span class="sourceLineNo">144</span>    doDrainOfOneEntry(bc, wt, q);<a 
name="line.144"></a>
+<span class="sourceLineNo">145</span>    // Cache disabled when ioes w/o ever 
healing.<a name="line.145"></a>
+<span class="sourceLineNo">146</span>    assertTrue(!bc.isCacheEnabled());<a 
name="line.146"></a>
+<span class="sourceLineNo">147</span>  }<a name="line.147"></a>
+<span class="sourceLineNo">148</span><a name="line.148"></a>
+<span class="sourceLineNo">149</span>  /**<a name="line.149"></a>
+<span class="sourceLineNo">150</span>   * Do Cache full exception<a 
name="line.150"></a>
+<span class="sourceLineNo">151</span>   * @throws IOException<a 
name="line.151"></a>
+<span class="sourceLineNo">152</span>   * @throws InterruptedException<a 
name="line.152"></a>
+<span class="sourceLineNo">153</span>   */<a name="line.153"></a>
+<span class="sourceLineNo">154</span>  @Test (timeout=30000)<a 
name="line.154"></a>
+<span class="sourceLineNo">155</span>  public void testCacheFullException()<a 
name="line.155"></a>
+<span class="sourceLineNo">156</span>      throws IOException, 
InterruptedException {<a name="line.156"></a>
+<span class="sourceLineNo">157</span>    this.bc.cacheBlock(this.plainKey, 
plainCacheable);<a name="line.157"></a>
+<span class="sourceLineNo">158</span>    RAMQueueEntry rqe = q.remove();<a 
name="line.158"></a>
+<span class="sourceLineNo">159</span>    RAMQueueEntry spiedRqe = 
Mockito.spy(rqe);<a name="line.159"></a>
+<span class="sourceLineNo">160</span>    final CacheFullException cfe = new 
CacheFullException(0, 0);<a name="line.160"></a>
+<span class="sourceLineNo">161</span>    BucketEntry mockedBucketEntry = 
Mockito.mock(BucketEntry.class);<a name="line.161"></a>
+<span class="sourceLineNo">162</span>    Mockito.doThrow(cfe).<a 
name="line.162"></a>
+<span class="sourceLineNo">163</span>      doReturn(mockedBucketEntry).<a 
name="line.163"></a>
+<span class="sourceLineNo">164</span>      
when(spiedRqe).writeToCache((IOEngine)Mockito.any(), 
(BucketAllocator)Mockito.any(),<a name="line.164"></a>
+<span class="sourceLineNo">165</span>        
(UniqueIndexMap&lt;Integer&gt;)Mockito.any(), (AtomicLong)Mockito.any());<a 
name="line.165"></a>
+<span class="sourceLineNo">166</span>    this.q.add(spiedRqe);<a 
name="line.166"></a>
+<span class="sourceLineNo">167</span>    doDrainOfOneEntry(bc, wt, q);<a 
name="line.167"></a>
+<span class="sourceLineNo">168</span>  }<a name="line.168"></a>
+<span class="sourceLineNo">169</span><a name="line.169"></a>
+<span class="sourceLineNo">170</span>  private static void 
doDrainOfOneEntry(final BucketCache bc, final BucketCache.WriterThread wt,<a 
name="line.170"></a>
+<span class="sourceLineNo">171</span>      final 
BlockingQueue&lt;RAMQueueEntry&gt; q)<a name="line.171"></a>
+<span class="sourceLineNo">172</span>  throws InterruptedException {<a 
name="line.172"></a>
+<span class="sourceLineNo">173</span>    List&lt;RAMQueueEntry&gt; rqes = 
BucketCache.getRAMQueueEntries(q, new ArrayList&lt;&gt;(1));<a 
name="line.173"></a>
+<span class="sourceLineNo">174</span>    wt.doDrain(rqes);<a 
name="line.174"></a>
+<span class="sourceLineNo">175</span>    assertTrue(q.isEmpty());<a 
name="line.175"></a>
+<span class="sourceLineNo">176</span>    assertTrue(bc.ramCache.isEmpty());<a 
name="line.176"></a>
+<span class="sourceLineNo">177</span>    assertEquals(0, bc.heapSize());<a 
name="line.177"></a>
+<span class="sourceLineNo">178</span>  }<a name="line.178"></a>
+<span class="sourceLineNo">179</span>}<a name="line.179"></a>
 
 
 

http://git-wip-us.apache.org/repos/asf/hbase-site/blob/07e68d46/testdevapidocs/src-html/org/apache/hadoop/hbase/io/hfile/bucket/TestBucketWriterThread.html
----------------------------------------------------------------------
diff --git 
a/testdevapidocs/src-html/org/apache/hadoop/hbase/io/hfile/bucket/TestBucketWriterThread.html
 
b/testdevapidocs/src-html/org/apache/hadoop/hbase/io/hfile/bucket/TestBucketWriterThread.html
index 6e5ace7..1139eb3 100644
--- 
a/testdevapidocs/src-html/org/apache/hadoop/hbase/io/hfile/bucket/TestBucketWriterThread.html
+++ 
b/testdevapidocs/src-html/org/apache/hadoop/hbase/io/hfile/bucket/TestBucketWriterThread.html
@@ -27,163 +27,164 @@
 <span class="sourceLineNo">019</span>package 
org.apache.hadoop.hbase.io.hfile.bucket;<a name="line.19"></a>
 <span class="sourceLineNo">020</span><a name="line.20"></a>
 <span class="sourceLineNo">021</span>import 
org.apache.hadoop.hbase.testclassification.IOTests;<a name="line.21"></a>
-<span class="sourceLineNo">022</span>import 
org.apache.hadoop.hbase.testclassification.SmallTests;<a name="line.22"></a>
-<span class="sourceLineNo">023</span>import 
org.apache.hadoop.hbase.io.hfile.BlockCacheKey;<a name="line.23"></a>
-<span class="sourceLineNo">024</span>import 
org.apache.hadoop.hbase.io.hfile.Cacheable;<a name="line.24"></a>
-<span class="sourceLineNo">025</span>import 
org.apache.hadoop.hbase.io.hfile.bucket.BucketCache.BucketEntry;<a 
name="line.25"></a>
-<span class="sourceLineNo">026</span>import 
org.apache.hadoop.hbase.io.hfile.bucket.BucketCache.RAMQueueEntry;<a 
name="line.26"></a>
-<span class="sourceLineNo">027</span>import org.junit.After;<a 
name="line.27"></a>
-<span class="sourceLineNo">028</span>import org.junit.Before;<a 
name="line.28"></a>
-<span class="sourceLineNo">029</span>import org.junit.Test;<a 
name="line.29"></a>
-<span class="sourceLineNo">030</span>import 
org.junit.experimental.categories.Category;<a name="line.30"></a>
-<span class="sourceLineNo">031</span>import org.mockito.Mockito;<a 
name="line.31"></a>
-<span class="sourceLineNo">032</span><a name="line.32"></a>
-<span class="sourceLineNo">033</span>import java.io.FileNotFoundException;<a 
name="line.33"></a>
-<span class="sourceLineNo">034</span>import java.io.IOException;<a 
name="line.34"></a>
-<span class="sourceLineNo">035</span>import java.util.ArrayList;<a 
name="line.35"></a>
-<span class="sourceLineNo">036</span>import java.util.List;<a 
name="line.36"></a>
-<span class="sourceLineNo">037</span>import 
java.util.concurrent.BlockingQueue;<a name="line.37"></a>
-<span class="sourceLineNo">038</span>import 
java.util.concurrent.atomic.AtomicLong;<a name="line.38"></a>
-<span class="sourceLineNo">039</span><a name="line.39"></a>
-<span class="sourceLineNo">040</span>import static 
org.hamcrest.CoreMatchers.is;<a name="line.40"></a>
-<span class="sourceLineNo">041</span>import static 
org.junit.Assert.assertEquals;<a name="line.41"></a>
-<span class="sourceLineNo">042</span>import static 
org.junit.Assert.assertThat;<a name="line.42"></a>
-<span class="sourceLineNo">043</span>import static 
org.junit.Assert.assertTrue;<a name="line.43"></a>
-<span class="sourceLineNo">044</span><a name="line.44"></a>
-<span class="sourceLineNo">045</span>@Category({IOTests.class, 
SmallTests.class})<a name="line.45"></a>
-<span class="sourceLineNo">046</span>public class TestBucketWriterThread {<a 
name="line.46"></a>
-<span class="sourceLineNo">047</span>  private BucketCache bc;<a 
name="line.47"></a>
-<span class="sourceLineNo">048</span>  private BucketCache.WriterThread wt;<a 
name="line.48"></a>
-<span class="sourceLineNo">049</span>  private 
BlockingQueue&lt;RAMQueueEntry&gt; q;<a name="line.49"></a>
-<span class="sourceLineNo">050</span>  private Cacheable plainCacheable;<a 
name="line.50"></a>
-<span class="sourceLineNo">051</span>  private BlockCacheKey plainKey;<a 
name="line.51"></a>
-<span class="sourceLineNo">052</span><a name="line.52"></a>
-<span class="sourceLineNo">053</span>  /** A BucketCache that does not start 
its writer threads. */<a name="line.53"></a>
-<span class="sourceLineNo">054</span>  private static class MockBucketCache 
extends BucketCache {<a name="line.54"></a>
-<span class="sourceLineNo">055</span><a name="line.55"></a>
-<span class="sourceLineNo">056</span>    public MockBucketCache(String 
ioEngineName, long capacity, int blockSize, int[] bucketSizes,<a 
name="line.56"></a>
-<span class="sourceLineNo">057</span>      int writerThreadNum, int 
writerQLen, String persistencePath, int ioErrorsTolerationDuration)<a 
name="line.57"></a>
-<span class="sourceLineNo">058</span>      throws FileNotFoundException, 
IOException {<a name="line.58"></a>
-<span class="sourceLineNo">059</span>      super(ioEngineName, capacity, 
blockSize, bucketSizes, writerThreadNum, writerQLen,<a name="line.59"></a>
-<span class="sourceLineNo">060</span>        persistencePath, 
ioErrorsTolerationDuration);<a name="line.60"></a>
-<span class="sourceLineNo">061</span>    }<a name="line.61"></a>
-<span class="sourceLineNo">062</span><a name="line.62"></a>
-<span class="sourceLineNo">063</span>    @Override<a name="line.63"></a>
-<span class="sourceLineNo">064</span>    protected void startWriterThreads() 
{<a name="line.64"></a>
-<span class="sourceLineNo">065</span>      // intentional noop<a 
name="line.65"></a>
-<span class="sourceLineNo">066</span>    }<a name="line.66"></a>
-<span class="sourceLineNo">067</span>  }<a name="line.67"></a>
-<span class="sourceLineNo">068</span><a name="line.68"></a>
-<span class="sourceLineNo">069</span>  /**<a name="line.69"></a>
-<span class="sourceLineNo">070</span>   * Set up variables and get BucketCache 
and WriterThread into state where tests can  manually<a name="line.70"></a>
-<span class="sourceLineNo">071</span>   * control the running of WriterThread 
and BucketCache is empty.<a name="line.71"></a>
-<span class="sourceLineNo">072</span>   * @throws Exception<a 
name="line.72"></a>
-<span class="sourceLineNo">073</span>   */<a name="line.73"></a>
-<span class="sourceLineNo">074</span>  @Before<a name="line.74"></a>
-<span class="sourceLineNo">075</span>  public void setUp() throws Exception 
{<a name="line.75"></a>
-<span class="sourceLineNo">076</span>    // Arbitrary capacity.<a 
name="line.76"></a>
-<span class="sourceLineNo">077</span>    final int capacity = 16;<a 
name="line.77"></a>
-<span class="sourceLineNo">078</span>    // Run with one writer thread only. 
Means there will be one writer queue only too.  We depend<a name="line.78"></a>
-<span class="sourceLineNo">079</span>    // on this in below.<a 
name="line.79"></a>
-<span class="sourceLineNo">080</span>    final int writerThreadsCount = 1;<a 
name="line.80"></a>
-<span class="sourceLineNo">081</span>    this.bc = new MockBucketCache("heap", 
capacity, 1, new int [] {1}, writerThreadsCount,<a name="line.81"></a>
-<span class="sourceLineNo">082</span>      capacity, null, 100/*Tolerate 
ioerrors for 100ms*/);<a name="line.82"></a>
-<span class="sourceLineNo">083</span>    assertEquals(writerThreadsCount, 
bc.writerThreads.length);<a name="line.83"></a>
-<span class="sourceLineNo">084</span>    assertEquals(writerThreadsCount, 
bc.writerQueues.size());<a name="line.84"></a>
-<span class="sourceLineNo">085</span>    // Get reference to our single 
WriterThread instance.<a name="line.85"></a>
-<span class="sourceLineNo">086</span>    this.wt = bc.writerThreads[0];<a 
name="line.86"></a>
-<span class="sourceLineNo">087</span>    this.q = bc.writerQueues.get(0);<a 
name="line.87"></a>
-<span class="sourceLineNo">088</span><a name="line.88"></a>
-<span class="sourceLineNo">089</span>    wt.disableWriter();<a 
name="line.89"></a>
-<span class="sourceLineNo">090</span>    this.plainKey = new 
BlockCacheKey("f", 0);<a name="line.90"></a>
-<span class="sourceLineNo">091</span>    this.plainCacheable = 
Mockito.mock(Cacheable.class);<a name="line.91"></a>
-<span class="sourceLineNo">092</span><a name="line.92"></a>
-<span class="sourceLineNo">093</span>    assertThat(bc.ramCache.isEmpty(), 
is(true));<a name="line.93"></a>
-<span class="sourceLineNo">094</span>    assertTrue(q.isEmpty());<a 
name="line.94"></a>
-<span class="sourceLineNo">095</span>  }<a name="line.95"></a>
-<span class="sourceLineNo">096</span><a name="line.96"></a>
-<span class="sourceLineNo">097</span>  @After<a name="line.97"></a>
-<span class="sourceLineNo">098</span>  public void tearDown() throws Exception 
{<a name="line.98"></a>
-<span class="sourceLineNo">099</span>    if (this.bc != null) 
this.bc.shutdown();<a name="line.99"></a>
-<span class="sourceLineNo">100</span>  }<a name="line.100"></a>
-<span class="sourceLineNo">101</span><a name="line.101"></a>
-<span class="sourceLineNo">102</span>  /**<a name="line.102"></a>
-<span class="sourceLineNo">103</span>   * Test non-error case just works.<a 
name="line.103"></a>
-<span class="sourceLineNo">104</span>   * @throws FileNotFoundException<a 
name="line.104"></a>
-<span class="sourceLineNo">105</span>   * @throws IOException<a 
name="line.105"></a>
-<span class="sourceLineNo">106</span>   * @throws InterruptedException<a 
name="line.106"></a>
-<span class="sourceLineNo">107</span>   */<a name="line.107"></a>
-<span class="sourceLineNo">108</span>  @Test (timeout=30000)<a 
name="line.108"></a>
-<span class="sourceLineNo">109</span>  public void testNonErrorCase() throws 
IOException, InterruptedException {<a name="line.109"></a>
-<span class="sourceLineNo">110</span>    bc.cacheBlock(this.plainKey, 
this.plainCacheable);<a name="line.110"></a>
-<span class="sourceLineNo">111</span>    doDrainOfOneEntry(this.bc, this.wt, 
this.q);<a name="line.111"></a>
-<span class="sourceLineNo">112</span>  }<a name="line.112"></a>
-<span class="sourceLineNo">113</span><a name="line.113"></a>
-<span class="sourceLineNo">114</span>  /**<a name="line.114"></a>
-<span class="sourceLineNo">115</span>   * Pass through a too big entry and 
ensure it is cleared from queues and ramCache.<a name="line.115"></a>
-<span class="sourceLineNo">116</span>   * Manually run the WriterThread.<a 
name="line.116"></a>
-<span class="sourceLineNo">117</span>   * @throws InterruptedException<a 
name="line.117"></a>
-<span class="sourceLineNo">118</span>   */<a name="line.118"></a>
-<span class="sourceLineNo">119</span>  @Test<a name="line.119"></a>
-<span class="sourceLineNo">120</span>  public void testTooBigEntry() throws 
InterruptedException {<a name="line.120"></a>
-<span class="sourceLineNo">121</span>    Cacheable tooBigCacheable = 
Mockito.mock(Cacheable.class);<a name="line.121"></a>
-<span class="sourceLineNo">122</span>    
Mockito.when(tooBigCacheable.getSerializedLength()).thenReturn(Integer.MAX_VALUE);<a
 name="line.122"></a>
-<span class="sourceLineNo">123</span>    this.bc.cacheBlock(this.plainKey, 
tooBigCacheable);<a name="line.123"></a>
-<span class="sourceLineNo">124</span>    doDrainOfOneEntry(this.bc, this.wt, 
this.q);<a name="line.124"></a>
-<span class="sourceLineNo">125</span>  }<a name="line.125"></a>
-<span class="sourceLineNo">126</span><a name="line.126"></a>
-<span class="sourceLineNo">127</span>  /**<a name="line.127"></a>
-<span class="sourceLineNo">128</span>   * Do IOE. Take the RAMQueueEntry that 
was on the queue, doctor it to throw exception, then<a name="line.128"></a>
-<span class="sourceLineNo">129</span>   * put it back and process it.<a 
name="line.129"></a>
-<span class="sourceLineNo">130</span>   * @throws IOException<a 
name="line.130"></a>
-<span class="sourceLineNo">131</span>   * @throws InterruptedException<a 
name="line.131"></a>
-<span class="sourceLineNo">132</span>   */<a name="line.132"></a>
-<span class="sourceLineNo">133</span>  @SuppressWarnings("unchecked")<a 
name="line.133"></a>
-<span class="sourceLineNo">134</span>  @Test (timeout=30000)<a 
name="line.134"></a>
-<span class="sourceLineNo">135</span>  public void testIOE() throws 
IOException, InterruptedException {<a name="line.135"></a>
-<span class="sourceLineNo">136</span>    this.bc.cacheBlock(this.plainKey, 
plainCacheable);<a name="line.136"></a>
-<span class="sourceLineNo">137</span>    RAMQueueEntry rqe = q.remove();<a 
name="line.137"></a>
-<span class="sourceLineNo">138</span>    RAMQueueEntry spiedRqe = 
Mockito.spy(rqe);<a name="line.138"></a>
-<span class="sourceLineNo">139</span>    Mockito.doThrow(new 
IOException("Mocked!")).when(spiedRqe).<a name="line.139"></a>
-<span class="sourceLineNo">140</span>      
writeToCache((IOEngine)Mockito.any(), (BucketAllocator)Mockito.any(),<a 
name="line.140"></a>
-<span class="sourceLineNo">141</span>        
(UniqueIndexMap&lt;Integer&gt;)Mockito.any(), (AtomicLong)Mockito.any());<a 
name="line.141"></a>
-<span class="sourceLineNo">142</span>    this.q.add(spiedRqe);<a 
name="line.142"></a>
-<span class="sourceLineNo">143</span>    doDrainOfOneEntry(bc, wt, q);<a 
name="line.143"></a>
-<span class="sourceLineNo">144</span>    // Cache disabled when ioes w/o ever 
healing.<a name="line.144"></a>
-<span class="sourceLineNo">145</span>    assertTrue(!bc.isCacheEnabled());<a 
name="line.145"></a>
-<span class="sourceLineNo">146</span>  }<a name="line.146"></a>
-<span class="sourceLineNo">147</span><a name="line.147"></a>
-<span class="sourceLineNo">148</span>  /**<a name="line.148"></a>
-<span class="sourceLineNo">149</span>   * Do Cache full exception<a 
name="line.149"></a>
-<span class="sourceLineNo">150</span>   * @throws IOException<a 
name="line.150"></a>
-<span class="sourceLineNo">151</span>   * @throws InterruptedException<a 
name="line.151"></a>
-<span class="sourceLineNo">152</span>   */<a name="line.152"></a>
-<span class="sourceLineNo">153</span>  @Test (timeout=30000)<a 
name="line.153"></a>
-<span class="sourceLineNo">154</span>  public void testCacheFullException()<a 
name="line.154"></a>
-<span class="sourceLineNo">155</span>      throws IOException, 
InterruptedException {<a name="line.155"></a>
-<span class="sourceLineNo">156</span>    this.bc.cacheBlock(this.plainKey, 
plainCacheable);<a name="line.156"></a>
-<span class="sourceLineNo">157</span>    RAMQueueEntry rqe = q.remove();<a 
name="line.157"></a>
-<span class="sourceLineNo">158</span>    RAMQueueEntry spiedRqe = 
Mockito.spy(rqe);<a name="line.158"></a>
-<span class="sourceLineNo">159</span>    final CacheFullException cfe = new 
CacheFullException(0, 0);<a name="line.159"></a>
-<span class="sourceLineNo">160</span>    BucketEntry mockedBucketEntry = 
Mockito.mock(BucketEntry.class);<a name="line.160"></a>
-<span class="sourceLineNo">161</span>    Mockito.doThrow(cfe).<a 
name="line.161"></a>
-<span class="sourceLineNo">162</span>      doReturn(mockedBucketEntry).<a 
name="line.162"></a>
-<span class="sourceLineNo">163</span>      
when(spiedRqe).writeToCache((IOEngine)Mockito.any(), 
(BucketAllocator)Mockito.any(),<a name="line.163"></a>
-<span class="sourceLineNo">164</span>        
(UniqueIndexMap&lt;Integer&gt;)Mockito.any(), (AtomicLong)Mockito.any());<a 
name="line.164"></a>
-<span class="sourceLineNo">165</span>    this.q.add(spiedRqe);<a 
name="line.165"></a>
-<span class="sourceLineNo">166</span>    doDrainOfOneEntry(bc, wt, q);<a 
name="line.166"></a>
-<span class="sourceLineNo">167</span>  }<a name="line.167"></a>
-<span class="sourceLineNo">168</span><a name="line.168"></a>
-<span class="sourceLineNo">169</span>  private static void 
doDrainOfOneEntry(final BucketCache bc, final BucketCache.WriterThread wt,<a 
name="line.169"></a>
-<span class="sourceLineNo">170</span>      final 
BlockingQueue&lt;RAMQueueEntry&gt; q)<a name="line.170"></a>
-<span class="sourceLineNo">171</span>  throws InterruptedException {<a 
name="line.171"></a>
-<span class="sourceLineNo">172</span>    List&lt;RAMQueueEntry&gt; rqes = 
BucketCache.getRAMQueueEntries(q, new ArrayList&lt;&gt;(1));<a 
name="line.172"></a>
-<span class="sourceLineNo">173</span>    wt.doDrain(rqes);<a 
name="line.173"></a>
-<span class="sourceLineNo">174</span>    assertTrue(q.isEmpty());<a 
name="line.174"></a>
-<span class="sourceLineNo">175</span>    assertTrue(bc.ramCache.isEmpty());<a 
name="line.175"></a>
-<span class="sourceLineNo">176</span>    assertEquals(0, bc.heapSize());<a 
name="line.176"></a>
-<span class="sourceLineNo">177</span>  }<a name="line.177"></a>
-<span class="sourceLineNo">178</span>}<a name="line.178"></a>
+<span class="sourceLineNo">022</span>import 
org.apache.hadoop.hbase.HBaseConfiguration;<a name="line.22"></a>
+<span class="sourceLineNo">023</span>import 
org.apache.hadoop.hbase.testclassification.SmallTests;<a name="line.23"></a>
+<span class="sourceLineNo">024</span>import 
org.apache.hadoop.hbase.io.hfile.BlockCacheKey;<a name="line.24"></a>
+<span class="sourceLineNo">025</span>import 
org.apache.hadoop.hbase.io.hfile.Cacheable;<a name="line.25"></a>
+<span class="sourceLineNo">026</span>import 
org.apache.hadoop.hbase.io.hfile.bucket.BucketCache.BucketEntry;<a 
name="line.26"></a>
+<span class="sourceLineNo">027</span>import 
org.apache.hadoop.hbase.io.hfile.bucket.BucketCache.RAMQueueEntry;<a 
name="line.27"></a>
+<span class="sourceLineNo">028</span>import org.junit.After;<a 
name="line.28"></a>
+<span class="sourceLineNo">029</span>import org.junit.Before;<a 
name="line.29"></a>
+<span class="sourceLineNo">030</span>import org.junit.Test;<a 
name="line.30"></a>
+<span class="sourceLineNo">031</span>import 
org.junit.experimental.categories.Category;<a name="line.31"></a>
+<span class="sourceLineNo">032</span>import org.mockito.Mockito;<a 
name="line.32"></a>
+<span class="sourceLineNo">033</span><a name="line.33"></a>
+<span class="sourceLineNo">034</span>import java.io.FileNotFoundException;<a 
name="line.34"></a>
+<span class="sourceLineNo">035</span>import java.io.IOException;<a 
name="line.35"></a>
+<span class="sourceLineNo">036</span>import java.util.ArrayList;<a 
name="line.36"></a>
+<span class="sourceLineNo">037</span>import java.util.List;<a 
name="line.37"></a>
+<span class="sourceLineNo">038</span>import 
java.util.concurrent.BlockingQueue;<a name="line.38"></a>
+<span class="sourceLineNo">039</span>import 
java.util.concurrent.atomic.AtomicLong;<a name="line.39"></a>
+<span class="sourceLineNo">040</span><a name="line.40"></a>
+<span class="sourceLineNo">041</span>import static 
org.hamcrest.CoreMatchers.is;<a name="line.41"></a>
+<span class="sourceLineNo">042</span>import static 
org.junit.Assert.assertEquals;<a name="line.42"></a>
+<span class="sourceLineNo">043</span>import static 
org.junit.Assert.assertThat;<a name="line.43"></a>
+<span class="sourceLineNo">044</span>import static 
org.junit.Assert.assertTrue;<a name="line.44"></a>
+<span class="sourceLineNo">045</span><a name="line.45"></a>
+<span class="sourceLineNo">046</span>@Category({IOTests.class, 
SmallTests.class})<a name="line.46"></a>
+<span class="sourceLineNo">047</span>public class TestBucketWriterThread {<a 
name="line.47"></a>
+<span class="sourceLineNo">048</span>  private BucketCache bc;<a 
name="line.48"></a>
+<span class="sourceLineNo">049</span>  private BucketCache.WriterThread wt;<a 
name="line.49"></a>
+<span class="sourceLineNo">050</span>  private 
BlockingQueue&lt;RAMQueueEntry&gt; q;<a name="line.50"></a>
+<span class="sourceLineNo">051</span>  private Cacheable plainCacheable;<a 
name="line.51"></a>
+<span class="sourceLineNo">052</span>  private BlockCacheKey plainKey;<a 
name="line.52"></a>
+<span class="sourceLineNo">053</span><a name="line.53"></a>
+<span class="sourceLineNo">054</span>  /** A BucketCache that does not start 
its writer threads. */<a name="line.54"></a>
+<span class="sourceLineNo">055</span>  private static class MockBucketCache 
extends BucketCache {<a name="line.55"></a>
+<span class="sourceLineNo">056</span><a name="line.56"></a>
+<span class="sourceLineNo">057</span>    public MockBucketCache(String 
ioEngineName, long capacity, int blockSize, int[] bucketSizes,<a 
name="line.57"></a>
+<span class="sourceLineNo">058</span>      int writerThreadNum, int 
writerQLen, String persistencePath, int ioErrorsTolerationDuration)<a 
name="line.58"></a>
+<span class="sourceLineNo">059</span>      throws FileNotFoundException, 
IOException {<a name="line.59"></a>
+<span class="sourceLineNo">060</span>      super(ioEngineName, capacity, 
blockSize, bucketSizes, writerThreadNum, writerQLen,<a name="line.60"></a>
+<span class="sourceLineNo">061</span>        persistencePath, 
ioErrorsTolerationDuration, HBaseConfiguration.create());<a name="line.61"></a>
+<span class="sourceLineNo">062</span>    }<a name="line.62"></a>
+<span class="sourceLineNo">063</span><a name="line.63"></a>
+<span class="sourceLineNo">064</span>    @Override<a name="line.64"></a>
+<span class="sourceLineNo">065</span>    protected void startWriterThreads() 
{<a name="line.65"></a>
+<span class="sourceLineNo">066</span>      // intentional noop<a 
name="line.66"></a>
+<span class="sourceLineNo">067</span>    }<a name="line.67"></a>
+<span class="sourceLineNo">068</span>  }<a name="line.68"></a>
+<span class="sourceLineNo">069</span><a name="line.69"></a>
+<span class="sourceLineNo">070</span>  /**<a name="line.70"></a>
+<span class="sourceLineNo">071</span>   * Set up variables and get BucketCache 
and WriterThread into state where tests can  manually<a name="line.71"></a>
+<span class="sourceLineNo">072</span>   * control the running of WriterThread 
and BucketCache is empty.<a name="line.72"></a>
+<span class="sourceLineNo">073</span>   * @throws Exception<a 
name="line.73"></a>
+<span class="sourceLineNo">074</span>   */<a name="line.74"></a>
+<span class="sourceLineNo">075</span>  @Before<a name="line.75"></a>
+<span class="sourceLineNo">076</span>  public void setUp() throws Exception 
{<a name="line.76"></a>
+<span class="sourceLineNo">077</span>    // Arbitrary capacity.<a 
name="line.77"></a>
+<span class="sourceLineNo">078</span>    final int capacity = 16;<a 
name="line.78"></a>
+<span class="sourceLineNo">079</span>    // Run with one writer thread only. 
Means there will be one writer queue only too.  We depend<a name="line.79"></a>
+<span class="sourceLineNo">080</span>    // on this in below.<a 
name="line.80"></a>
+<span class="sourceLineNo">081</span>    final int writerThreadsCount = 1;<a 
name="line.81"></a>
+<span class="sourceLineNo">082</span>    this.bc = new MockBucketCache("heap", 
capacity, 1, new int [] {1}, writerThreadsCount,<a name="line.82"></a>
+<span class="sourceLineNo">083</span>      capacity, null, 100/*Tolerate 
ioerrors for 100ms*/);<a name="line.83"></a>
+<span class="sourceLineNo">084</span>    assertEquals(writerThreadsCount, 
bc.writerThreads.length);<a name="line.84"></a>
+<span class="sourceLineNo">085</span>    assertEquals(writerThreadsCount, 
bc.writerQueues.size());<a name="line.85"></a>
+<span class="sourceLineNo">086</span>    // Get reference to our single 
WriterThread instance.<a name="line.86"></a>
+<span class="sourceLineNo">087</span>    this.wt = bc.writerThreads[0];<a 
name="line.87"></a>
+<span class="sourceLineNo">088</span>    this.q = bc.writerQueues.get(0);<a 
name="line.88"></a>
+<span class="sourceLineNo">089</span><a name="line.89"></a>
+<span class="sourceLineNo">090</span>    wt.disableWriter();<a 
name="line.90"></a>
+<span class="sourceLineNo">091</span>    this.plainKey = new 
BlockCacheKey("f", 0);<a name="line.91"></a>
+<span class="sourceLineNo">092</span>    this.plainCacheable = 
Mockito.mock(Cacheable.class);<a name="line.92"></a>
+<span class="sourceLineNo">093</span><a name="line.93"></a>
+<span class="sourceLineNo">094</span>    assertThat(bc.ramCache.isEmpty(), 
is(true));<a name="line.94"></a>
+<span class="sourceLineNo">095</span>    assertTrue(q.isEmpty());<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>  @After<a name="line.98"></a>
+<span class="sourceLineNo">099</span>  public void tearDown() throws Exception 
{<a name="line.99"></a>
+<span class="sourceLineNo">100</span>    if (this.bc != null) 
this.bc.shutdown();<a name="line.100"></a>
+<span class="sourceLineNo">101</span>  }<a name="line.101"></a>
+<span class="sourceLineNo">102</span><a name="line.102"></a>
+<span class="sourceLineNo">103</span>  /**<a name="line.103"></a>
+<span class="sourceLineNo">104</span>   * Test non-error case just works.<a 
name="line.104"></a>
+<span class="sourceLineNo">105</span>   * @throws FileNotFoundException<a 
name="line.105"></a>
+<span class="sourceLineNo">106</span>   * @throws IOException<a 
name="line.106"></a>
+<span class="sourceLineNo">107</span>   * @throws InterruptedException<a 
name="line.107"></a>
+<span class="sourceLineNo">108</span>   */<a name="line.108"></a>
+<span class="sourceLineNo">109</span>  @Test (timeout=30000)<a 
name="line.109"></a>
+<span class="sourceLineNo">110</span>  public void testNonErrorCase() throws 
IOException, InterruptedException {<a name="line.110"></a>
+<span class="sourceLineNo">111</span>    bc.cacheBlock(this.plainKey, 
this.plainCacheable);<a name="line.111"></a>
+<span class="sourceLineNo">112</span>    doDrainOfOneEntry(this.bc, this.wt, 
this.q);<a name="line.112"></a>
+<span class="sourceLineNo">113</span>  }<a name="line.113"></a>
+<span class="sourceLineNo">114</span><a name="line.114"></a>
+<span class="sourceLineNo">115</span>  /**<a name="line.115"></a>
+<span class="sourceLineNo">116</span>   * Pass through a too big entry and 
ensure it is cleared from queues and ramCache.<a name="line.116"></a>
+<span class="sourceLineNo">117</span>   * Manually run the WriterThread.<a 
name="line.117"></a>
+<span class="sourceLineNo">118</span>   * @throws InterruptedException<a 
name="line.118"></a>
+<span class="sourceLineNo">119</span>   */<a name="line.119"></a>
+<span class="sourceLineNo">120</span>  @Test<a name="line.120"></a>
+<span class="sourceLineNo">121</span>  public void testTooBigEntry() throws 
InterruptedException {<a name="line.121"></a>
+<span class="sourceLineNo">122</span>    Cacheable tooBigCacheable = 
Mockito.mock(Cacheable.class);<a name="line.122"></a>
+<span class="sourceLineNo">123</span>    
Mockito.when(tooBigCacheable.getSerializedLength()).thenReturn(Integer.MAX_VALUE);<a
 name="line.123"></a>
+<span class="sourceLineNo">124</span>    this.bc.cacheBlock(this.plainKey, 
tooBigCacheable);<a name="line.124"></a>
+<span class="sourceLineNo">125</span>    doDrainOfOneEntry(this.bc, this.wt, 
this.q);<a name="line.125"></a>
+<span class="sourceLineNo">126</span>  }<a name="line.126"></a>
+<span class="sourceLineNo">127</span><a name="line.127"></a>
+<span class="sourceLineNo">128</span>  /**<a name="line.128"></a>
+<span class="sourceLineNo">129</span>   * Do IOE. Take the RAMQueueEntry that 
was on the queue, doctor it to throw exception, then<a name="line.129"></a>
+<span class="sourceLineNo">130</span>   * put it back and process it.<a 
name="line.130"></a>
+<span class="sourceLineNo">131</span>   * @throws IOException<a 
name="line.131"></a>
+<span class="sourceLineNo">132</span>   * @throws InterruptedException<a 
name="line.132"></a>
+<span class="sourceLineNo">133</span>   */<a name="line.133"></a>
+<span class="sourceLineNo">134</span>  @SuppressWarnings("unchecked")<a 
name="line.134"></a>
+<span class="sourceLineNo">135</span>  @Test (timeout=30000)<a 
name="line.135"></a>
+<span class="sourceLineNo">136</span>  public void testIOE() throws 
IOException, InterruptedException {<a name="line.136"></a>
+<span class="sourceLineNo">137</span>    this.bc.cacheBlock(this.plainKey, 
plainCacheable);<a name="line.137"></a>
+<span class="sourceLineNo">138</span>    RAMQueueEntry rqe = q.remove();<a 
name="line.138"></a>
+<span class="sourceLineNo">139</span>    RAMQueueEntry spiedRqe = 
Mockito.spy(rqe);<a name="line.139"></a>
+<span class="sourceLineNo">140</span>    Mockito.doThrow(new 
IOException("Mocked!")).when(spiedRqe).<a name="line.140"></a>
+<span class="sourceLineNo">141</span>      
writeToCache((IOEngine)Mockito.any(), (BucketAllocator)Mockito.any(),<a 
name="line.141"></a>
+<span class="sourceLineNo">142</span>        
(UniqueIndexMap&lt;Integer&gt;)Mockito.any(), (AtomicLong)Mockito.any());<a 
name="line.142"></a>
+<span class="sourceLineNo">143</span>    this.q.add(spiedRqe);<a 
name="line.143"></a>
+<span class="sourceLineNo">144</span>    doDrainOfOneEntry(bc, wt, q);<a 
name="line.144"></a>
+<span class="sourceLineNo">145</span>    // Cache disabled when ioes w/o ever 
healing.<a name="line.145"></a>
+<span class="sourceLineNo">146</span>    assertTrue(!bc.isCacheEnabled());<a 
name="line.146"></a>
+<span class="sourceLineNo">147</span>  }<a name="line.147"></a>
+<span class="sourceLineNo">148</span><a name="line.148"></a>
+<span class="sourceLineNo">149</span>  /**<a name="line.149"></a>
+<span class="sourceLineNo">150</span>   * Do Cache full exception<a 
name="line.150"></a>
+<span class="sourceLineNo">151</span>   * @throws IOException<a 
name="line.151"></a>
+<span class="sourceLineNo">152</span>   * @throws InterruptedException<a 
name="line.152"></a>
+<span class="sourceLineNo">153</span>   */<a name="line.153"></a>
+<span class="sourceLineNo">154</span>  @Test (timeout=30000)<a 
name="line.154"></a>
+<span class="sourceLineNo">155</span>  public void testCacheFullException()<a 
name="line.155"></a>
+<span class="sourceLineNo">156</span>      throws IOException, 
InterruptedException {<a name="line.156"></a>
+<span class="sourceLineNo">157</span>    this.bc.cacheBlock(this.plainKey, 
plainCacheable);<a name="line.157"></a>
+<span class="sourceLineNo">158</span>    RAMQueueEntry rqe = q.remove();<a 
name="line.158"></a>
+<span class="sourceLineNo">159</span>    RAMQueueEntry spiedRqe = 
Mockito.spy(rqe);<a name="line.159"></a>
+<span class="sourceLineNo">160</span>    final CacheFullException cfe = new 
CacheFullException(0, 0);<a name="line.160"></a>
+<span class="sourceLineNo">161</span>    BucketEntry mockedBucketEntry = 
Mockito.mock(BucketEntry.class);<a name="line.161"></a>
+<span class="sourceLineNo">162</span>    Mockito.doThrow(cfe).<a 
name="line.162"></a>
+<span class="sourceLineNo">163</span>      doReturn(mockedBucketEntry).<a 
name="line.163"></a>
+<span class="sourceLineNo">164</span>      
when(spiedRqe).writeToCache((IOEngine)Mockito.any(), 
(BucketAllocator)Mockito.any(),<a name="line.164"></a>
+<span class="sourceLineNo">165</span>        
(UniqueIndexMap&lt;Integer&gt;)Mockito.any(), (AtomicLong)Mockito.any());<a 
name="line.165"></a>
+<span class="sourceLineNo">166</span>    this.q.add(spiedRqe);<a 
name="line.166"></a>
+<span class="sourceLineNo">167</span>    doDrainOfOneEntry(bc, wt, q);<a 
name="line.167"></a>
+<span class="sourceLineNo">168</span>  }<a name="line.168"></a>
+<span class="sourceLineNo">169</span><a name="line.169"></a>
+<span class="sourceLineNo">170</span>  private static void 
doDrainOfOneEntry(final BucketCache bc, final BucketCache.WriterThread wt,<a 
name="line.170"></a>
+<span class="sourceLineNo">171</span>      final 
BlockingQueue&lt;RAMQueueEntry&gt; q)<a name="line.171"></a>
+<span class="sourceLineNo">172</span>  throws InterruptedException {<a 
name="line.172"></a>
+<span class="sourceLineNo">173</span>    List&lt;RAMQueueEntry&gt; rqes = 
BucketCache.getRAMQueueEntries(q, new ArrayList&lt;&gt;(1));<a 
name="line.173"></a>
+<span class="sourceLineNo">174</span>    wt.doDrain(rqes);<a 
name="line.174"></a>
+<span class="sourceLineNo">175</span>    assertTrue(q.isEmpty());<a 
name="line.175"></a>
+<span class="sourceLineNo">176</span>    assertTrue(bc.ramCache.isEmpty());<a 
name="line.176"></a>
+<span class="sourceLineNo">177</span>    assertEquals(0, bc.heapSize());<a 
name="line.177"></a>
+<span class="sourceLineNo">178</span>  }<a name="line.178"></a>
+<span class="sourceLineNo">179</span>}<a name="line.179"></a>

Reply via email to