http://git-wip-us.apache.org/repos/asf/hbase-site/blob/5c5e961f/testdevapidocs/src-html/org/apache/hadoop/hbase/regionserver/DataBlockEncodingTool.html
----------------------------------------------------------------------
diff --git 
a/testdevapidocs/src-html/org/apache/hadoop/hbase/regionserver/DataBlockEncodingTool.html
 
b/testdevapidocs/src-html/org/apache/hadoop/hbase/regionserver/DataBlockEncodingTool.html
index 9ddf036..6f6aa09 100644
--- 
a/testdevapidocs/src-html/org/apache/hadoop/hbase/regionserver/DataBlockEncodingTool.html
+++ 
b/testdevapidocs/src-html/org/apache/hadoop/hbase/regionserver/DataBlockEncodingTool.html
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org.apache.hadoop.hbase.io.compress.Compression.Algorithm;<a name="line.38"></a>
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 <span class="sourceLineNo">068</span><a name="line.68"></a>
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codecKv.getBuffer()[prefix + codecKv.getOffset()] ==<a name="line.263"></a>
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Bytes.toStringBinary(currentKv.getBuffer(),<a name="line.288"></a>
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currentKv.getOffset() + prefix, currentKv.getLength() -<a name="line.289"></a>
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name="line.290"></a>
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benchmarkEncoder(prevTotalSize, codec);<a name="line.310"></a>
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benchmarkDefaultCompression(prevTotalSize, rawKVs);<a name="line.313"></a>
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-<span class="sourceLineNo">316</span>  /**<a name="line.316"></a>
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name="line.327"></a>
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ArrayList&lt;&gt;();<a name="line.328"></a>
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codec.getIterator(HFileBlock.headerSize(useHBaseChecksum));<a 
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KV would abandon tagsLen part if tagsLen<a name="line.201"></a>
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tagsLen part to check if current cell<a name="line.202"></a>
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true, HFile contains cells with tags,<a name="line.203"></a>
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means other cells may have tags.<a name="line.204"></a>
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currentKV.getTagsLength() == 0) {<a name="line.205"></a>
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uncompressedOutputStream.write(currentKV.getBuffer(),<a name="line.206"></a>
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currentKV.getLength());<a name="line.207"></a>
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name="line.208"></a>
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uncompressedOutputStream.write(Bytes.toBytes((short) 0));<a name="line.209"></a>
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uncompressedOutputStream.write(currentKV.getBuffer(),<a name="line.211"></a>
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currentKV.getLength());<a name="line.212"></a>
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+<span class="sourceLineNo">214</span><a name="line.214"></a>
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name="line.215"></a>
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name="line.216"></a>
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DataOutputStream(uncompressedOutputStream), currentKV.getSequenceId());<a 
name="line.217"></a>
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+<span class="sourceLineNo">219</span><a name="line.219"></a>
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currentKV.getKeyLength();<a name="line.222"></a>
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currentKV.getValueLength();<a name="line.223"></a>
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currentKV.getFamilyLength(currentKV.getFamilyOffset());<a name="line.224"></a>
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+<span class="sourceLineNo">228</span>      totalValueLength += vLen;<a 
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+<span class="sourceLineNo">230</span>      totalCFLength += cfLen;<a 
name="line.230"></a>
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+<span class="sourceLineNo">232</span><a name="line.232"></a>
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uncompressedOutputStream.toByteArray();<a name="line.233"></a>
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encodings) {<a name="line.234"></a>
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DataBlockEncoding.NONE) {<a name="line.235"></a>
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+<span class="sourceLineNo">238</span>      DataBlockEncoder d = 
encoding.getEncoder();<a name="line.238"></a>
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HFileContextBuilder()<a name="line.239"></a>
+<span class="sourceLineNo">240</span>          
.withDataBlockEncoding(encoding)<a name="line.240"></a>
+<span class="sourceLineNo">241</span>          
.withCompression(Compression.Algorithm.NONE)<a name="line.241"></a>
+<span class="sourceLineNo">242</span>          
.withIncludesMvcc(includesMemstoreTS)<a name="line.242"></a>
+<span class="sourceLineNo">243</span>          
.withIncludesTags(USE_TAG).build();<a name="line.243"></a>
+<span class="sourceLineNo">244</span>      codecs.add(new EncodedDataBlock(d, 
encoding, rawKVs, meta ));<a name="line.244"></a>
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+<span class="sourceLineNo">246</span>  }<a name="line.246"></a>
+<span class="sourceLineNo">247</span><a name="line.247"></a>
+<span class="sourceLineNo">248</span>  /**<a name="line.248"></a>
+<span class="sourceLineNo">249</span>   * Verify if all data block encoders 
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+<span class="sourceLineNo">250</span>   *<a name="line.250"></a>
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compressed.<a name="line.251"></a>
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KeyValue which will be processed.<a name="line.252"></a>
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encoders compressed/decompressed correctly.<a name="line.253"></a>
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scanner is invalid<a name="line.254"></a>
+<span class="sourceLineNo">255</span>   */<a name="line.255"></a>
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name="line.257"></a>
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name="line.260"></a>
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codecIterators = new ArrayList&lt;&gt;();<a name="line.261"></a>
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{<a name="line.262"></a>
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codecIterators.add(codec.getIterator(HFileBlock.headerSize(useHBaseChecksum)));<a
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+<span class="sourceLineNo">265</span><a name="line.265"></a>
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KeyValueUtil.ensureKeyValue(scanner.next())) != null &amp;&amp; j &lt; kvLimit) 
{<a name="line.267"></a>
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pairs<a name="line.268"></a>
+<span class="sourceLineNo">269</span>      ++j;<a name="line.269"></a>
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codecIterators) {<a name="line.270"></a>
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name="line.271"></a>
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KeyValueUtil.ensureKeyValue(c);<a name="line.272"></a>
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Bytes.compareTo(<a name="line.273"></a>
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codecKv.getOffset(), codecKv.getLength(),<a name="line.274"></a>
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currentKv.getOffset(),<a name="line.275"></a>
+<span class="sourceLineNo">276</span>            currentKv.getLength())) {<a 
name="line.276"></a>
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name="line.277"></a>
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Bytes.SIZEOF_INT +<a name="line.282"></a>
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Math.min(codecKv.getLength(), currentKv.getLength());<a name="line.283"></a>
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limitLength &amp;&amp;<a name="line.284"></a>
+<span class="sourceLineNo">285</span>                
codecKv.getBuffer()[prefix + codecKv.getOffset()] ==<a name="line.285"></a>
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currentKv.getBuffer()[prefix + currentKv.getOffset()]) {<a name="line.286"></a>
+<span class="sourceLineNo">287</span>              prefix++;<a 
name="line.287"></a>
+<span class="sourceLineNo">288</span>            }<a name="line.288"></a>
+<span class="sourceLineNo">289</span><a name="line.289"></a>
+<span class="sourceLineNo">290</span>            LOG.error("There is bug in 
codec " + it.toString() +<a name="line.290"></a>
+<span class="sourceLineNo">291</span>                "\n on element " + j +<a 
name="line.291"></a>
+<span class="sourceLineNo">292</span>                "\n 
codecKv.getKeyLength() " + codecKv.getKeyLength() +<a name="line.292"></a>
+<span class="sourceLineNo">293</span>                "\n 
codecKv.getValueLength() " + codecKv.getValueLength() +<a name="line.293"></a>
+<span class="sourceLineNo">294</span>                "\n codecKv.getLength() " 
+ codecKv.getLength() +<a name="line.294"></a>
+<span class="sourceLineNo">295</span>                "\n 
currentKv.getKeyLength() " + currentKv.getKeyLength() +<a name="line.295"></a>
+<span class="sourceLineNo">296</span>                "\n 
currentKv.getValueLength() " + currentKv.getValueLength() +<a 
name="line.296"></a>
+<span class="sourceLineNo">297</span>                "\n codecKv.getLength() " 
+ currentKv.getLength() +<a name="line.297"></a>
+<span class="sourceLineNo">298</span>                "\n currentKV rowLength " 
+ currentKv.getRowLength() +<a name="line.298"></a>
+<span class="sourceLineNo">299</span>                " familyName " + 
currentKv.getFamilyLength() +<a name="line.299"></a>
+<span class="sourceLineNo">300</span>                " qualifier " + 
currentKv.getQualifierLength() +<a name="line.300"></a>
+<span class="sourceLineNo">301</span>                "\n prefix " + prefix +<a 
name="line.301"></a>
+<span class="sourceLineNo">302</span>                "\n codecKv   '" + 
Bytes.toStringBinary(codecKv.getBuffer(),<a name="line.302"></a>
+<span class="sourceLineNo">303</span>                    codecKv.getOffset(), 
prefix) + "' diff '" +<a name="line.303"></a>
+<span class="sourceLineNo">304</span>                    
Bytes.toStringBinary(codecKv.getBuffer(),<a name="line.304"></a>
+<span class="sourceLineNo">305</span>                        
codecKv.getOffset() + prefix, codecKv.getLength() -<a name="line.305"></a>
+<span class="sourceLineNo">306</span>                        prefix) + "'" +<a 
name="line.306"></a>
+<span class="sourceLineNo">307</span>                "\n currentKv '" + 
Bytes.toStringBinary(<a name="line.307"></a>
+<span class="sourceLineNo">308</span>                   
currentKv.getBuffer(),<a name="line.308"></a>
+<span class="sourceLineNo">309</span>                   currentKv.getOffset(), 
prefix) + "' diff '" +<a name="line.309"></a>
+<span class="sourceLineNo">310</span>                   
Bytes.toStringBinary(currentKv.getBuffer(),<a name="line.310"></a>
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currentKv.getOffset() + prefix, currentKv.getLength() -<a name="line.311"></a>
+<span class="sourceLineNo">312</span>                       prefix) + "'"<a 
name="line.312"></a>
+<span class="sourceLineNo">313</span>                );<a name="line.313"></a>
+<span class="sourceLineNo">314</span>          }<a name="line.314"></a>
+<span class="sourceLineNo">315</span>          return false;<a 
name="line.315"></a>
+<span class="sourceLineNo">316</span>        }<a name="line.316"></a>
+<span class="sourceLineNo">317</span>      }<a name="line.317"></a>
+<span class="sourceLineNo">318</span>    }<a name="line.318"></a>
+<span class="sourceLineNo">319</span><a name="line.319"></a>
+<span class="sourceLineNo">320</span>    LOG.info("Verification was 
successful!");<a name="line.320"></a>
+<span class="sourceLineNo">321</span><a name="line.321"></a>
+<span class="sourceLineNo">322</span>    return true;<a name="line.322"></a>
+<span class="sourceLineNo">323</span>  }<a name="line.323"></a>
+<span class="sourceLineNo">324</span><a name="line.324"></a>
+<span class="sourceLineNo">325</span>  /**<a name="line.325"></a>
+<span class="sourceLineNo">326</span>   * Benchmark codec's speed.<a 
name="line.326"></a>
+<span class="sourceLineNo">327</span>   */<a name="line.327"></a>
+<span class="sourceLineNo">328</span>  public void benchmarkCodecs() throws 
IOException {<a name="line.328"></a>
+<span class="sourceLineNo">329</span>    LOG.info("Starting a throughput 
benchmark for data block encoding codecs");<a name="line.329"></a>
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name="line.330"></a>
+<span class="sourceLineNo">331</span>    for (EncodedDataBlock codec : codecs) 
{<a name="line.331"></a>
+<span class="sourceLineNo">332</span>      prevTotalSize = 
benchmarkEncoder(prevTotalSize, codec);<a name="line.332"></a>
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+<span class="sourceLineNo">334</span><a name="line.334"></a>
+<span class="sourceLineNo">335</span>    
benchmarkDefaultCompression(prevTotalSize, rawKVs);<a name="line.335"></a>
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+<span class="sourceLineNo">337</span><a name="line.337"></a>
+<span class="sourceLineNo">338</span>  /**<a name="line.338"></a>
+<span class="sourceLineNo">339</span>   * Benchmark compression/decompression 
throughput.<a name="line.339"></a>
+<span class="sourceLineNo">340</span>   * @param previousTotalSize Total size 
used for verification. Use -1 if<a name="line.340"></a>
+<span class="sourceLineNo">341</span>   *          unknown.<a 
name="line.341"></a>
+<span class="sourceLineNo">342</span>   * @param codec Tested encoder.<a 
name="line.342"></a>
+<span class="sourceLineNo">343</span>   * @return Size of uncompressed data.<a 
name="line.343"></a>
+<span class="sourceLineNo">344</span>   */<a name="line.344"></a>
+<span class="sourceLineNo">345</span>  private int benchmarkEncoder(int 
previousTotalSize, EncodedDataBlock codec) {<a name="line.345"></a>
+<span class="sourceLineNo">346</span>    int prevTotalSize = 
previousTotalSize;<a name="line.346"></a>
+<span class="sourceLineNo">347</span>    int totalSize = 0;<a 
name="line.347"></a>
+<span class="sourceLineNo">348</span><a name="line.348"></a>
+<span class="sourceLineNo">349</span>    // decompression time<a 
name="line.349"></a>
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ArrayList&lt;&gt;();<a name="line.350"></a>
+<span class="sourceLineNo">351</span>    for (int itTime = 0; itTime &lt; 
benchmarkNTimes; ++itTime) {<a name="line.351"></a>
+<span class="sourceLineNo">352</span>      totalSize = 0;<a 
name="line.352"></a>
 <span class="sourceLineNo">353</span><a name="line.353"></a>
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new ArrayList&lt;&gt;();<a name="line.354"></a>
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benchmarkNTimes; ++itTime) {<a name="line.355"></a>
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System.nanoTime();<a name="line.356"></a>
-<span class="sourceLineNo">357</span>      codec.encodeData();<a 
name="line.357"></a>
-<span class="sourceLineNo">358</span>      final long finishTime = 
System.nanoTime();<a name="line.358"></a>
-<span class="sourceLineNo">359</span>      if (itTime &gt;= benchmarkNOmit) 
{<a name="line.359"></a>
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- startTime);<a name="line.360"></a>
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{<a name="line.365"></a>
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benchmarkAlgorithm(compressionAlgorithm,<a name="line.374"></a>
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compressionAlgorithmName.toUpperCase(Locale.ROOT), rawBuffer, 0, totalSize);<a 
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given algorithm and print it.<a name="line.379"></a>
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algorithm.<a name="line.380"></a>
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buffer.<a name="line.384"></a>
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name="line.385"></a>
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length) throws IOException {<a name="line.388"></a>
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name="line.389"></a>
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prevTotalSize != totalSize) {<a name="line.369"></a>
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IllegalStateException(String.format(<a name="line.370"></a>
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new ArrayList&lt;&gt;();<a name="line.376"></a>
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benchmarkNTimes; ++itTime) {<a name="line.377"></a>
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System.nanoTime();<a name="line.378"></a>
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{<a name="line.381"></a>
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durations, Manipulation.DECODING);<a name="line.388"></a>
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name="line.389"></a>
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compressedStream = new ByteArrayOutputStream();<a name="line.393"></a>
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compressingStream =<a name="line.394"></a>
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algorithm.createPlainCompressionStream(compressedStream, compressor);<a 
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benchmarkAlgorithm(compressionAlgorithm,<a name="line.396"></a>
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compressionAlgorithmName.toUpperCase(Locale.ROOT), rawBuffer, 0, totalSize);<a 
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given algorithm and print it.<a name="line.401"></a>
+<span class="sourceLineNo">402</span>   * @param algorithm Compression 
algorithm.<a name="line.402"></a>
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name="line.403"></a>
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compressed.<a name="line.404"></a>
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buffer.<a name="line.406"></a>
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name="line.407"></a>
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benchmarkAlgorithm(Compression.Algorithm algorithm, String name,<a 
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length) throws IOException {<a name="line.410"></a>
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new ArrayList&lt;&gt;();<a name="line.414"></a>
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compressedStream = new ByteArrayOutputStream();<a name="line.415"></a>
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compressingStream =<a name="line.416"></a>
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algorithm.createPlainCompressionStream(compressedStream, compressor);<a 
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{<a name="line.432"></a>
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compressDurations.add(finishTime - startTime);<a name="line.433"></a>
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RuntimeException(String.format(<a name="line.437"></a>
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name="line.439"></a>
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name="line.441"></a>
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compressDurations, Manipulation.COMPRESSION);<a name="line.442"></a>
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+<span class="sourceLineNo">444</span>    byte[] compBuffer = 
compressedStream.toByteArray();<a name="line.444"></a>
+<span class="sourceLineNo">445</span><a name="line.445"></a>
+<span class="sourceLineNo">446</span>    // uncompress it several times and 
measure performance<a name="line.446"></a>
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ArrayList&lt;&gt;();<a name="line.447"></a>
+<span class="sourceLineNo">448</span>    for (int itTime = 0; itTime &lt; 
benchmarkNTimes; ++itTime) {<a name="line.448"></a>
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System.nanoTime();<a name="line.449"></a>
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1];<a name="line.450"></a>
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1000.0 * 1000.0 * 1000.0;<a name="line.476"></a>
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durationsInNanoSec.size();<a name="line.481"></a>
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{<a name="line.483"></a>
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durationsInNanoSec) {<a name="line.491"></a>
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MB_SEC_COEF / time;<a name="line.492"></a>
-

<TRUNCATED>

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