http://git-wip-us.apache.org/repos/asf/hbase-site/blob/08a3774c/apidocs/src-html/org/apache/hadoop/hbase/mapreduce/LoadIncrementalHFiles.html
----------------------------------------------------------------------
diff --git 
a/apidocs/src-html/org/apache/hadoop/hbase/mapreduce/LoadIncrementalHFiles.html 
b/apidocs/src-html/org/apache/hadoop/hbase/mapreduce/LoadIncrementalHFiles.html
index 4d16641..99ae63b 100644
--- 
a/apidocs/src-html/org/apache/hadoop/hbase/mapreduce/LoadIncrementalHFiles.html
+++ 
b/apidocs/src-html/org/apache/hadoop/hbase/mapreduce/LoadIncrementalHFiles.html
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MAX_FILES_PER_REGION_PER_FAMILY<a name="line.118"></a>
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setConf(HBaseConfiguration.create(getConf()));<a name="line.156"></a>
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conf.setFloat(HConstants.HFILE_BLOCK_CACHE_SIZE_KEY, 0);<a name="line.159"></a>
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conf.getBoolean(ASSIGN_SEQ_IDS, true);<a name="line.162"></a>
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conf.getInt("hbase.loadincremental.threads.max",<a name="line.164"></a>
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(!fs.isFile(hfileStatus.getPath())) {<a name="line.230"></a>
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(StoreFileInfo.isReference(fileName)) {<a name="line.241"></a>
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err.append("-------------------------------------------------\n");<a 
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to read data from your table after using this " +<a name="line.430"></a>
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name="line.432"></a>
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+<span class="sourceLineNo">301</span>   */<a name="line.301"></a>
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+<span class="sourceLineNo">303</span>      Map&lt;byte[], List&lt;Path&gt;&gt; 
map) throws IOException {<a name="line.303"></a>
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List&lt;Path&gt;&gt; entry : map.entrySet()) {<a name="line.304"></a>
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+<span class="sourceLineNo">306</span>        ret.add(new 
LoadQueueItem(entry.getKey(), p));<a name="line.306"></a>
+<span class="sourceLineNo">307</span>      }<a name="line.307"></a>
+<span class="sourceLineNo">308</span>    }<a name="line.308"></a>
+<span class="sourceLineNo">309</span>  }<a name="line.309"></a>
+<span class="sourceLineNo">310</span><a name="line.310"></a>
+<span class="sourceLineNo">311</span>  /**<a name="line.311"></a>
+<span class="sourceLineNo">312</span>   * Walk the given directory for all 
HFiles, and return a Queue<a name="line.312"></a>
+<span class="sourceLineNo">313</span>   * containing all such files.<a 
name="line.313"></a>
+<span class="sourceLineNo">314</span>   */<a name="line.314"></a>
+<span class="sourceLineNo">315</span>  private void discoverLoadQueue(final 
Deque&lt;LoadQueueItem&gt; ret, final Path hfofDir,<a name="line.315"></a>
+<span class="sourceLineNo">316</span>      final boolean validateHFile) throws 
IOException {<a name="line.316"></a>
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hfofDir.getFileSystem(getConf());<a name="line.317"></a>
+<span class="sourceLineNo">318</span>    visitBulkHFiles(fs, hfofDir, new 
BulkHFileVisitor&lt;byte[]&gt;() {<a name="line.318"></a>
+<span class="sourceLineNo">319</span>      @Override<a name="line.319"></a>
+<span class="sourceLineNo">320</span>      public byte[] bulkFamily(final 
byte[] familyName) {<a name="line.320"></a>
+<span class="sourceLineNo">321</span>        return familyName;<a 
name="line.321"></a>
+<span class="sourceLineNo">322</span>      }<a name="line.322"></a>
+<span class="sourceLineNo">323</span>      @Override<a name="line.323"></a>
+<span class="sourceLineNo">324</span>      public void bulkHFile(final byte[] 
family, final FileStatus hfile) throws IOException {<a name="line.324"></a>
+<span class="sourceLineNo">325</span>        long length = hfile.getLen();<a 
name="line.325"></a>
+<span class="sourceLineNo">326</span>        if (length &gt; 
getConf().getLong(HConstants.HREGION_MAX_FILESIZE,<a name="line.326"></a>
+<span class="sourceLineNo">327</span>            
HConstants.DEFAULT_MAX_FILE_SIZE)) {<a name="line.327"></a>
+<span class="sourceLineNo">328</span>          LOG.warn("Trying to bulk load 
hfile " + hfile.getPath() + " with size: " +<a name="line.328"></a>
+<span class="sourceLineNo">329</span>              length + " bytes can be 
problematic as it may lead to oversplitting.");<a name="line.329"></a>
+<span class="sourceLineNo">330</span>        }<a name="line.330"></a>
+<span class="sourceLineNo">331</span>        ret.add(new LoadQueueItem(family, 
hfile.getPath()));<a name="line.331"></a>
+<span class="sourceLineNo">332</span>      }<a name="line.332"></a>
+<span class="sourceLineNo">333</span>    }, validateHFile);<a 
name="line.333"></a>
+<span class="sourceLineNo">334</span>  }<a name="line.334"></a>
+<span class="sourceLineNo">335</span><a name="line.335"></a>
+<span class="sourceLineNo">336</span>  /**<a name="line.336"></a>
+<span class="sourceLineNo">337</span>   * Perform a bulk load of the given 
directory into the given<a name="line.337"></a>
+<span class="sourceLineNo">338</span>   * pre-existing table.  This method is 
not threadsafe.<a name="line.338"></a>
+<span class="sourceLineNo">339</span>   *<a name="line.339"></a>
+<span class="sourceLineNo">340</span>   * @param hfofDir the directory that 
was provided as the output path<a name="line.340"></a>
+<span class="sourceLineNo">341</span>   *   of a job using HFileOutputFormat<a 
name="line.341"></a>
+<span class="sourceLineNo">342</span>   * @param admin the Admin<a 
name="line.342"></a>
+<span class="sourceLineNo">343</span>   * @param table the table to load 
into<a name="line.343"></a>
+<span class="sourceLineNo">344</span>   * @param regionLocator region 
locator<a name="line.344"></a>
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table does not yet exist<a name="line.345"></a>
+<span class="sourceLineNo">346</span>   */<a name="line.346"></a>
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final Admin admin, Table table,<a name="line.347"></a>
+<span class="sourceLineNo">348</span>      RegionLocator regionLocator) throws 
TableNotFoundException, IOException {<a name="line.348"></a>
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regionLocator, false, false);<a name="line.349"></a>
+<span class="sourceLineNo">350</span>  }<a name="line.350"></a>
+<span class="sourceLineNo">351</span><a name="line.351"></a>
+<span class="sourceLineNo">352</span>  void cleanup(Admin admin, 
Deque&lt;LoadQueueItem&gt; queue, ExecutorService pool,<a name="line.352"></a>
+<span class="sourceLineNo">353</span>      SecureBulkLoadClient secureClient) 
throws IOException {<a name="line.353"></a>
+<span class="sourceLineNo">354</span>    
fsDelegationToken.releaseDelegationToken();<a name="line.354"></a>
+<span class="sourceLineNo">355</span>    if (bulkToken != null &amp;&amp; 
secureClient != null) {<a name="line.355"></a>
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secureClient.cleanupBulkLoad(admin.getConnection(), bulkToken);<a 
name="line.356"></a>
+<span class="sourceLineNo">357</span>    }<a name="line.357"></a>
+<span class="sourceLineNo">358</span>    if (pool != null) {<a 
name="line.358"></a>
+<span class="sourceLineNo">359</span>      pool.shutdown();<a 
name="line.359"></a>
+<span class="sourceLineNo">360</span>    }<a name="line.360"></a>
+<span class="sourceLineNo">361</span>    if (!queue.isEmpty()) {<a 
name="line.361"></a>
+<span class="sourceLineNo">362</span>      StringBuilder err = new 
StringBuilder();<a name="line.362"></a>
+<span class="sourceLineNo">363</span>      
err.append("-------------------------------------------------\n");<a 
name="line.363"></a>
+<span class="sourceLineNo">364</span>      err.append("Bulk load aborted with 
some files not yet loaded:\n");<a name="line.364"></a>
+<span class="sourceLineNo">365</span>      
err.append("-------------------------------------------------\n");<a 
name="line.365"></a>
+<span class="sourceLineNo">366</span>      for (LoadQueueItem q : queue) {<a 
name="line.366"></a>
+<span class="sourceLineNo">367</span>        err.append("  
").append(q.hfilePath).append('\n');<a name="line.367"></a>
+<span class="sourceLineNo">368</span>      }<a name="line.368"></a>
+<span class="sourceLineNo">369</span>      LOG.error(err);<a 
name="line.369"></a>
+<span class="sourceLineNo">370</span>    }<a name="line.370"></a>
+<span class="sourceLineNo">371</span>  }<a name="line.371"></a>
+<span class="sourceLineNo">372</span>  /**<a name="line.372"></a>
+<span class="sourceLineNo">373</span>   * Perform a bulk load of the given 
directory into the given<a name="line.373"></a>
+<span class="sourceLineNo">374</span>   * pre-existing table.  This method is 
not threadsafe.<a name="line.374"></a>
+<span class="sourceLineNo">375</span>   *<a name="line.375"></a>
+<span class="sourceLineNo">376</span>   * @param map map of family to List of 
hfiles<a name="line.376"></a>
+<span class="sourceLineNo">377</span>   * @param admin the Admin<a 
name="line.377"></a>
+<span class="sourceLineNo">378</span>   * @param table the table to load 
into<a name="line.378"></a>
+<span class="sourceLineNo">379</span>   * @param regionLocator region 
locator<a name="line.379"></a>
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unmatched column families<a name="line.380"></a>
+<span class="sourceLineNo">381</span>   * @param copyFile always copy hfiles 
if true<a name="line.381"></a>
+<span class="sourceLineNo">382</span>   * @throws TableNotFoundException if 
table does not yet exist<a name="line.382"></a>
+<span class="sourceLineNo">383</span>   */<a name="line.383"></a>
+<span class="sourceLineNo">384</span>  public void doBulkLoad(Map&lt;byte[], 
List&lt;Path&gt;&gt; map, final Admin admin,<a name="line.384"></a>
+<span class="sourceLineNo">385</span>      Table table, RegionLocator 
regionLocator, boolean silence, boolean copyFile)<a name="line.385"></a>
+<span class="sourceLineNo">386</span>          throws TableNotFoundException, 
IOException {<a name="line.386"></a>
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(!admin.isTableAvailable(regionLocator.getName())) {<a name="line.387"></a>
+<span class="sourceLineNo">388</span>      throw new 
TableNotFoundException("Table " + table.getName() + " is not currently 
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threadsafe -- all operations on this queue<a name="line.390"></a>
+<span class="sourceLineNo">391</span>    // happen in this thread<a 
name="line.391"></a>
+<span class="sourceLineNo">392</span>    Deque&lt;LoadQueueItem&gt; queue = 
new LinkedList&lt;&gt;();<a name="line.392"></a>
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name="line.393"></a>
+<span class="sourceLineNo">394</span>    SecureBulkLoadClient secureClient = 
null;<a name="line.394"></a>
+<span class="sourceLineNo">395</span>    try {<a name="line.395"></a>
+<span class="sourceLineNo">396</span>      prepareHFileQueue(map, table, 
queue, silence);<a name="line.396"></a>
+<span class="sourceLineNo">397</span>      if (queue.isEmpty()) {<a 
name="line.397"></a>
+<span class="sourceLineNo">398</span>        LOG.warn("Bulk load operation did 
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+<span class="sourceLineNo">399</span>        return;<a name="line.399"></a>
+<span class="sourceLineNo">400</span>      }<a name="line.400"></a>
+<span class="sourceLineNo">401</span>      pool = createExecutorService();<a 
name="line.401"></a>
+<span class="sourceLineNo">402</span>      secureClient = new 
SecureBulkLoadClient(table.getConfiguration(), table);<a name="line.402"></a>
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List&lt;Path&gt;&gt; entry : map.entrySet()) {<a name="line.403"></a>
+<span class="sourceLineNo">404</span>        for (Path p : entry.getValue()) 
{<a name="line.404"></a>
+<span class="sourceLineNo">405</span>          fs = 
p.getFileSystem(table.getConfiguration());<a name="line.405"></a>
+<span class="sourceLineNo">406</span>          break;<a name="line.406"></a>
+<span class="sourceLineNo">407</span>        }<a name="line.407"></a>
+<span class="sourceLineNo">408</span>      }<a name="line.408"></a>
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table, regionLocator, queue, pool, secureClient, copyFile);<a 
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+<span class="sourceLineNo">411</span>      cleanup(admin, queue, pool, 
secureClient);<a name="line.411"></a>
+<span class="sourceLineNo">412</span>    }<a name="line.412"></a>
+<span class="sourceLineNo">413</span>  }<a name="line.413"></a>
+<span class="sourceLineNo">414</span><a name="line.414"></a>
+<span class="sourceLineNo">415</span>  /**<a name="line.415"></a>
+<span class="sourceLineNo">416</span>   * Perform a bulk load of the given 
directory into the given<a name="line.416"></a>
+<span class="sourceLineNo">417</span>   * pre-existing table.  This method is 
not threadsafe.<a name="line.417"></a>
+<span class="sourceLineNo">418</span>   *<a name="line.418"></a>
+<span class="sourceLineNo">419</span>   * @param hfofDir the directory that 
was provided as the output path<a name="line.419"></a>
+<span class="sourceLineNo">420</span>   *   of a job using HFileOutputFormat<a 
name="line.420"></a>
+<span class="sourceLineNo">421</span>   * @param admin the Admin<a 
name="line.421"></a>
+<span class="sourceLineNo">422</span>   * @param table the table to load 
into<a name="line.422"></a>
+<span class="sourceLineNo">423</span>   * @param regionLocator region 
locator<a name="line.423"></a>
+<span class="sourceLineNo">424</span>   * @param silence true to ignore 
unmatched column families<a name="line.424"></a>
+<span class="sourceLineNo">425</span>   * @param copyFile always copy hfiles 
if true<a name="line.425"></a>
+<span class="sourceLineNo">426</span>   * @throws TableNotFoundException if 
table does not yet exist<a name="line.426"></a>
+<span class="sourceLineNo">427</span>   */<a name="line.427"></a>
+<span class="sourceLineNo">428</span>  public void doBulkLoad(Path hfofDir, 
final Admin admin, Table table,<a name="line.428"></a>
+<span class="sourceLineNo">429</span>      RegionLocator regionLocator, 
boolean silence, boolean copyFile)<a name="line.429"></a>
+<span class="sourceLineNo">430</span>          throws TableNotFoundException, 
IOException {<a name="line.430"></a>
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(!admin.isTableAvailable(regionLocator.getName())) {<a name="line.431"></a>
+<span class="sourceLineNo">432</span>      throw new 
TableNotFoundException("Table " + table.getName() + " is not currently 
available.");<a name="line.432"></a>
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threadsafe -- all operations on this queue<a name="line.434"></a>
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name="line.435"></a>
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new LinkedList&lt;&gt;();<a name="line.436"></a>
-<span class="sourceLineNo">437</span>    ExecutorService pool = null;<a 
name="line.437"></a>
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null;<a name="line.438"></a>
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queue, validateHFile, silence);<a name="line.440"></a>
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-<span class="sourceLineNo">442</span>      if (queue.isEmpty()) {<a 
name="line.442"></a>
-<span class="sourceLineNo">443</span>        LOG.warn("Bulk load operation did 
not find any files to load in " +<a name="line.443"></a>
-<span class="sourceLineNo">444</span>            "directory " + hfofDir != 
null ? hfofDir.toUri() : "" + ".  Does it contain files in " +<a 
name="line.444"></a>
-<span class="sourceLineNo">445</span>            "subdirectories that 
correspond to column family names?");<a name="line.445"></a>
-<span class="sourceLineNo">446</span>        return;<a name="line.446"></a>
-<span class="sourceLineNo">447</span>      }<a name="line.447"></a>
-<span class="sourceLineNo">448</span>      pool = createExecutorService();<a 
name="line.448"></a>
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SecureBulkLoadClient(table.getConfiguration(), table);<a name="line.449"></a>
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table, regionLocator, queue, pool, secureClient, copyFile);<a 
name="line.450"></a>
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secureClient);<a name="line.452"></a>
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-<span class="sourceLineNo">455</span><a name="line.455"></a>
-<span class="sourceLineNo">456</span>  Map&lt;LoadQueueItem, ByteBuffer&gt; 
performBulkLoad(final Admin admin, Table table,<a name="line.456"></a>
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Deque&lt;LoadQueueItem&gt; queue, ExecutorService pool,<a name="line.457"></a>
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boolean copyFile) throws IOException {<a name="line.458"></a>
-<span class="sourceLineNo">459</span>    int count = 0;<a name="line.459"></a>
-<span class="sourceLineNo">460</span><a name="line.460"></a>
-<span class="sourceLineNo">461</span>    
if(isSecureBulkLoadEndpointAvailable()) {<a name="line.461"></a>
-<span class="sourceLineNo">462</span>      LOG.warn("SecureBulkLoadEndpoint is 
deprecated. It will be removed in future releases.");<a name="line.462"></a>
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integrated into HBase core.");<a name="line.463"></a>
-<span class="sourceLineNo">464</span>    }<a name="line.464"></a>
-<span class="sourceLineNo">465</span><a name="line.465"></a>
-<span class="sourceLineNo">466</span>    //If using secure bulk load, get 
source delegation token, and<a name="line.466"></a>
-<span class="sourceLineNo">467</span>    //prepare staging directory and 
token<a name="line.467"></a>
-<span class="sourceLineNo">468</span>    // fs is the source filesystem<a 
name="line.468"></a>
-<span class="sourceLineNo">469</span>    
fsDelegationToken.acquireDelegationToken(fs);<a name="line.469"></a>
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secureClient.prepareBulkLoad(admin.getConnection());<a name="line.470"></a>
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LoadQueueItem&gt;, Set&lt;String&gt;&gt; pair = null;<a name="line.471"></a>
+<span class="sourceLineNo">434</span><a name="line.434"></a>
+<span class="sourceLineNo">435</span>    /*<a name="line.435"></a>
+<span class="sourceLineNo">436</span>     * Checking hfile format is a 
time-consuming operation, we should have an option to skip<a 
name="line.436"></a>
+<span class="sourceLineNo">437</span>     * this step when bulkloading 
millions of HFiles. See HBASE-13985.<a name="line.437"></a>
+<span class="sourceLineNo">438</span>     */<a name="line.438"></a>
+<span class="sourceLineNo">439</span>    boolean validateHFile = 
getConf().getBoolean("hbase.loadincremental.validate.hfile", true);<a 
name="line.439"></a>
+<span class="sourceLineNo">440</span>    if (!validateHFile) {<a 
name="line.440"></a>
+<span class="sourceLineNo">441</span>      LOG.warn("You are skipping HFiles 
validation, it might cause some data loss if files " +<a name="line.441"></a>
+<span class="sourceLineNo">442</span>          "are not correct. If you fail 
to read data from your table after using this " +<a name="line.442"></a>
+<span class="sourceLineNo">443</span>          "option, consider removing the 
files and bulkload again without this option. " +<a name="line.443"></a>
+<span class="sourceLineNo">444</span>          "See HBASE-13985");<a 
name="line.444"></a>
+<span class="sourceLineNo">445</span>    }<a name="line.445"></a>
+<span class="sourceLineNo">446</span>    // LQI queue does not need to be 
threadsafe -- all operations on this queue<a name="line.446"></a>
+<span class="sourceLineNo">447</span>    // happen in this thread<a 
name="line.447"></a>
+<span class="sourceLineNo">448</span>    Deque&lt;LoadQueueItem&gt; queue = 
new LinkedList&lt;&gt;();<a name="line.448"></a>
+<span class="sourceLineNo">449</span>    ExecutorService pool = null;<a 
name="line.449"></a>
+<span class="sourceLineNo">450</span>    SecureBulkLoadClient secureClient = 
null;<a name="line.450"></a>
+<span class="sourceLineNo">451</span>    try {<a name="line.451"></a>
+<span class="sourceLineNo">452</span>      prepareHFileQueue(hfofDir, table, 
queue, validateHFile, silence);<a name="line.452"></a>
+<span class="sourceLineNo">453</span><a name="line.453"></a>
+<span class="sourceLineNo">454</span>      if (queue.isEmpty()) {<a 
name="line.454"></a>
+<span class="sourceLineNo">455</span>        LOG.warn("Bulk load operation did 
not find any files to load in " +<a name="line.455"></a>
+<span class="sourceLineNo">456</span>            "directory " + hfofDir != 
null ? hfofDir.toUri() : "" + ".  Does it contain files in " +<a 
name="line.456"></a>
+<span class="sourceLineNo">457</span>            "subdirectories that 
correspond to column family names?");<a name="line.457"></a>
+<span class="sourceLineNo">458</span>        return;<a name="line.458"></a>
+<span class="sourceLineNo">459</span>      }<a name="line.459"></a>
+<span class="sourceLineNo">460</span>      pool = createExecutorService();<a 
name="line.460"></a>
+<span class="sourceLineNo">461</span>      secureClient = new 
SecureBulkLoadClient(table.getConfiguration(), table);<a name="line.461"></a>
+<span class="sourceLineNo">462</span>      retValue = performBulkLoad(admin, 
table, regionLocator, queue, pool, secureClient, copyFile);<a 
name="line.462"></a>
+<span class="sourceLineNo">463</span>    } finally {<a name="line.463"></a>
+<span class="sourceLineNo">464</span>      cleanup(admin, queue, pool, 
secureClient);<a name="line.464"></a>
+<span class="sourceLineNo">465</span>    }<a name="line.465"></a>
+<span class="sourceLineNo">466</span>  }<a name="line.466"></a>
+<span class="sourceLineNo">467</span><a name="line.467"></a>
+<span class="sourceLineNo">468</span>  Map&lt;LoadQueueItem, ByteBuffe

<TRUNCATED>

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