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282
283 <div class="section">
284 <h2><a name="Welcome_to_Apache_HBase"></a>Welcome to Apache HBase&#x2122;</h2>
285
286 <p><a class="externalLink" href="http://www.apache.org/">Apache</a> HBase&#x2122; is the <a class="externalLink" href="http://hadoop.apache.org/">Hadoop</a> database, a distributed, scalable, big data store.
287 </p>
288
289 <p>Use Apache HBase&#x2122; when you need random, realtime read/write access to your Big Data.
290 This project's goal is the hosting of very large tables -- billions of rows X millions of columns -- atop clusters of commodity hardware.
291 Apache HBase is an open-source, distributed, versioned, non-relational database modeled after Google's <a class="externalLink" href="http://research.google.com/archive/bigtable.html">Bigtable: A Distributed Storage System for Structured Data</a> by Chang et al.
292 Just as Bigtable leverages the distributed data storage provided by the Google File System, Apache HBase provides Bigtable-like capabilities on top of Hadoop and HDFS.
293 </p>
294 </div>
295
296 <div class="section">
297 <h2><a name="Download"></a>Download</h2>
298
299 <p>
300 Click <b><a class="externalLink" href="http://www.apache.org/dyn/closer.cgi/hbase/">here</a></b> to download Apache HBase&#x2122;.
301 </p>
302 </div>
303
304 <div class="section">
305 <h2><a name="Features"></a>Features</h2>
306
307 <p>
308 </p>
309 <ul>
310
311 <li>Linear and modular scalability.
312 </li>
313
314 <li>Strictly consistent reads and writes.
315 </li>
316
317 <li>Automatic and configurable sharding of tables
318 </li>
319
320 <li>Automatic failover support between RegionServers.
321 </li>
322
323 <li>Convenient base classes for backing Hadoop MapReduce jobs with Apache HBase tables.
324 </li>
325
326 <li>Easy to use Java API for client access.
327 </li>
328
329 <li>Block cache and Bloom Filters for real-time queries.
330 </li>
331
332 <li>Query predicate push down via server side Filters
333 </li>
334
335 <li>Thrift gateway and a REST-ful Web service that supports XML, Protobuf, and binary data encoding options
336 </li>
337
338 <li>Extensible jruby-based (JIRB) shell
339 </li>
340
341 <li>Support for exporting metrics via the Hadoop metrics subsystem to files or Ganglia; or via JMX
342 </li>
343 </ul>
344
345 </div>
346
347 <div class="section">
348 <h2><a name="More_Info"></a>More Info</h2>
349
350 <p>See the <a class="externalLink" href="http://hbase.apache.org/book.html#arch.overview">Architecture Overview</a>, the <a class="externalLink" href="http://hbase.apache.org/book.html#faq">Apache HBase Reference Guide FAQ</a>,
351 and the other documentation links.
352 </p>
353
354 <dl>
355
356 <dt>Export Control</dt>
357
358 <dd>
359 <p>The HBase distribution includes cryptographic software. See the export control notice <a href="export_control.html">here</a>
360 </p></dd>
361
362 <dt>Code Of Conduct</dt>
363
364 <dd>
365 <p>We expect participants in discussions on the HBase project mailing lists, Slack and IRC channels, and JIRA issues to abide by the Apache Software Foundation's <a class="externalLink" href="http://apache.org/foundation/policies/conduct.html">Code of Conduct</a>. More information can be found <a href="coc.html">here</a>.
366 </p></dd>
367 </dl>
368 </div>
369
370
371 <div class="section">
372 <h2><a name="News"></a>News</h2>
373
374 <p>August 4th, 2017 <a class="externalLink" href="https://easychair.org/cfp/HBaseConAsia2017">HBaseCon Asia 2017</a> @ the Huawei Campus in Shenzhen, China</p>
375
376 <p>June 12th, 2017 <a class="externalLink" href="https://easychair.org/cfp/hbasecon2017">HBaseCon2017</a> at the Crittenden Buildings on the Google Mountain View Campus</p>
377
378 <p>April 25th, 2017 <a class="externalLink" href="https://www.meetup.com/hbaseusergroup/events/239291716/">Meetup</a> @ Visa in Palo Alto</p>
379
380 <p>December 8th, 2016 <a class="externalLink" href="https://www.meetup.com/hbaseusergroup/events/235542241/">Meetup@Splice</a> in San Francisco</p>
381
382 <p>September 26th, 2016 <a class="externalLink" href="http://www.meetup.com/HBase-NYC/events/233024937/">HBaseConEast2016</a> at Google in Chelsea, NYC</p>
383
384 <p>May 24th, 2016 <a class="externalLink" href="http://www.hbasecon.com/">HBaseCon2016</a> at The Village, 969 Market, San Francisco</p>
385
386 <p>June 25th, 2015 <a class="externalLink" href="http://www.zusaar.com/event/14057003">HBase Summer Meetup 2015</a> in Tokyo</p>
387
388 <p>May 7th, 2015 <a class="externalLink" href="http://hbasecon.com/">HBaseCon2015</a> in San Francisco</p>
389
390 <p>February 17th, 2015 <a class="externalLink" href="http://www.meetup.com/hbaseusergroup/events/219260093/">HBase meetup around Strata+Hadoop World</a> in San Jose</p>
391
392 <p>January 15th, 2015 <a class="externalLink" href="http://www.meetup.com/hbaseusergroup/events/218744798/">HBase meetup @ AppDynamics</a> in San Francisco</p>
393
394 <p>November 20th, 2014 <a class="externalLink" href="http://www.meetup.com/hbaseusergroup/events/205219992/">HBase meetup @ WANdisco</a> in San Ramon</p>
395
396 <p>October 27th, 2014 <a class="externalLink" href="http://www.meetup.com/hbaseusergroup/events/207386102/">HBase Meetup @ Apple</a> in Cupertino</p>
397
398 <p>October 15th, 2014 <a class="externalLink" href="http://www.meetup.com/HBase-NYC/events/207655552/">HBase Meetup @ Google</a> on the night before Strata/HW in NYC</p>
399
400 <p>September 25th, 2014 <a class="externalLink" href="http://www.meetup.com/hbaseusergroup/events/203173692/">HBase Meetup @ Continuuity</a> in Palo Alto</p>
401
402 <p>August 28th, 2014 <a class="externalLink" href="http://www.meetup.com/hbaseusergroup/events/197773762/">HBase Meetup @ Sift Science</a> in San Francisco</p>
403
404 <p>July 17th, 2014 <a class="externalLink" href="http://www.meetup.com/hbaseusergroup/events/190994082/">HBase Meetup @ HP</a> in Sunnyvale</p>
405
406 <p>June 5th, 2014 <a class="externalLink" href="http://www.meetup.com/Hadoop-Summit-Community-San-Jose/events/179081342/">HBase BOF at Hadoop Summit</a>, San Jose Convention Center</p>
407
408 <p>May 5th, 2014 <a class="externalLink" href="http://www.hbasecon.com/">HBaseCon2014</a> at the Hilton San Francisco on Union Square</p>
409
410 <p>March 12th, 2014 <a class="externalLink" href="http://www.meetup.com/hbaseusergroup/events/160757912/">HBase Meetup @ Ancestry.com</a> in San Francisco</p>
411
412 <p><small><a href="old_news.html">Old News</a></small></p>
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