http://git-wip-us.apache.org/repos/asf/hbase/blob/61d70604/src/main/site/xdoc/index.xml ---------------------------------------------------------------------- diff --git a/src/main/site/xdoc/index.xml b/src/main/site/xdoc/index.xml deleted file mode 100644 index 1848d40..0000000 --- a/src/main/site/xdoc/index.xml +++ /dev/null @@ -1,109 +0,0 @@ -<?xml version="1.0" encoding="UTF-8"?> -<!-- -Licensed to the Apache Software Foundation (ASF) under one -or more contributor license agreements. See the NOTICE file -distributed with this work for additional information -regarding copyright ownership. The ASF licenses this file -to you under the Apache License, Version 2.0 (the -"License"); you may not use this file except in compliance -with the License. You may obtain a copy of the License at - - http://www.apache.org/licenses/LICENSE-2.0 - -Unless required by applicable law or agreed to in writing, -software distributed under the License is distributed on an -"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY -KIND, either express or implied. See the License for the -specific language governing permissions and limitations -under the License. ---> -<document xmlns="http://maven.apache.org/XDOC/2.0"; - xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; - xsi:schemaLocation="http://maven.apache.org/XDOC/2.0 http://maven.apache.org/xsd/xdoc-2.0.xsd";> - <properties> - <title>Apache HBase™ Home</title> - <link rel="shortcut icon" href="/images/favicon.ico" /> - </properties> - - <body> - <section name="Welcome to Apache HBase™"> - <p><a href="http://www.apache.org/";>Apache</a> HBase™ is the <a href="http://hadoop.apache.org/";>Hadoop</a> database, a distributed, scalable, big data store. - </p> - <p>Use Apache HBase™ when you need random, realtime read/write access to your Big Data. - This project's goal is the hosting of very large tables -- billions of rows X millions of columns -- atop clusters of commodity hardware. -Apache HBase is an open-source, distributed, versioned, non-relational database modeled after Google's <a href="http://research.google.com/archive/bigtable.html";>Bigtable: A Distributed Storage System for Structured Data</a> by Chang et al. - 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. - </p> - </section> - <section name="Download"> - <p> - Click <b><a href="http://www.apache.org/dyn/closer.cgi/hbase/";>here</a></b> to download Apache HBase™. - </p> - </section> - <section name="Features"> - <p> -<ul> - <li>Linear and modular scalability. -</li> - <li>Strictly consistent reads and writes. -</li> - <li>Automatic and configurable sharding of tables -</li> - <li>Automatic failover support between RegionServers. -</li> - <li>Convenient base classes for backing Hadoop MapReduce jobs with Apache HBase tables. -</li> - <li>Easy to use Java API for client access. -</li> - <li>Block cache and Bloom Filters for real-time queries. -</li> - <li>Query predicate push down via server side Filters -</li> - <li>Thrift gateway and a REST-ful Web service that supports XML, Protobuf, and binary data encoding options -</li> - <li>Extensible jruby-based (JIRB) shell -</li> - <li>Support for exporting metrics via the Hadoop metrics subsystem to files or Ganglia; or via JMX -</li> -</ul> -</p> -</section> - <section name="More Info"> - <p>See the <a href="http://hbase.apache.org/book.html#arch.overview";>Architecture Overview</a>, the <a href="http://hbase.apache.org/book.html#faq";>Apache HBase Reference Guide FAQ</a>, - and the other documentation links. - </p> - <dl> - <dt>Export Control</dt> - <dd><p>The HBase distribution includes cryptographic software. See the export control notice <a href="export_control.html">here</a> - </p></dd> - <dt>Code Of Conduct</dt> - <dd><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 href="http://apache.org/foundation/policies/conduct.html";>Code of Conduct</a>. More information can be found <a href="coc.html">here</a>. - </p></dd> - </dl> -</section> - - <section name="News"> - <p>August 4th, 2017 <a href="https://easychair.org/cfp/HBaseConAsia2017";>HBaseCon Asia 2017</a> @ the Huawei Campus in Shenzhen, China</p> - <p>June 12th, 2017 <a href="https://easychair.org/cfp/hbasecon2017";>HBaseCon2017</a> at the Crittenden Buildings on the Google Mountain View Campus</p> - <p>April 25th, 2017 <a href="https://www.meetup.com/hbaseusergroup/events/239291716/";>Meetup</a> @ Visa in Palo Alto</p> - <p>December 8th, 2016 <a href="https://www.meetup.com/hbaseusergroup/events/235542241/";>Meetup@Splice</a> in San Francisco</p> - <p>September 26th, 2016 <a href="http://www.meetup.com/HBase-NYC/events/233024937/";>HBaseConEast2016</a> at Google in Chelsea, NYC</p> - <p>May 24th, 2016 <a href="http://www.hbasecon.com/";>HBaseCon2016</a> at The Village, 969 Market, San Francisco</p> - <p>June 25th, 2015 <a href="http://www.zusaar.com/event/14057003";>HBase Summer Meetup 2015</a> in Tokyo</p> - <p>May 7th, 2015 <a href="http://hbasecon.com/";>HBaseCon2015</a> in San Francisco</p> - <p>February 17th, 2015 <a href="http://www.meetup.com/hbaseusergroup/events/219260093/";>HBase meetup around Strata+Hadoop World</a> in San Jose</p> - <p>January 15th, 2015 <a href="http://www.meetup.com/hbaseusergroup/events/218744798/";>HBase meetup @ AppDynamics</a> in San Francisco</p> - <p>November 20th, 2014 <a href="http://www.meetup.com/hbaseusergroup/events/205219992/";>HBase meetup @ WANdisco</a> in San Ramon</p> - <p>October 27th, 2014 <a href="http://www.meetup.com/hbaseusergroup/events/207386102/";>HBase Meetup @ Apple</a> in Cupertino</p> - <p>October 15th, 2014 <a href="http://www.meetup.com/HBase-NYC/events/207655552/";>HBase Meetup @ Google</a> on the night before Strata/HW in NYC</p> - <p>September 25th, 2014 <a href="http://www.meetup.com/hbaseusergroup/events/203173692/";>HBase Meetup @ Continuuity</a> in Palo Alto</p> - <p>August 28th, 2014 <a href="http://www.meetup.com/hbaseusergroup/events/197773762/";>HBase Meetup @ Sift Science</a> in San Francisco</p> - <p>July 17th, 2014 <a href="http://www.meetup.com/hbaseusergroup/events/190994082/";>HBase Meetup @ HP</a> in Sunnyvale</p> - <p>June 5th, 2014 <a href="http://www.meetup.com/Hadoop-Summit-Community-San-Jose/events/179081342/";>HBase BOF at Hadoop Summit</a>, San Jose Convention Center</p> - <p>May 5th, 2014 <a href="http://www.hbasecon.com/";>HBaseCon2014</a> at the Hilton San Francisco on Union Square</p> - <p>March 12th, 2014 <a href="http://www.meetup.com/hbaseusergroup/events/160757912/";>HBase Meetup @ Ancestry.com</a> in San Francisco</p> - <p><small><a href="old_news.html">Old News</a></small></p> - </section> - </body> - -</document>
http://git-wip-us.apache.org/repos/asf/hbase/blob/61d70604/src/main/site/xdoc/metrics.xml ---------------------------------------------------------------------- diff --git a/src/main/site/xdoc/metrics.xml b/src/main/site/xdoc/metrics.xml deleted file mode 100644 index f3ab7d7..0000000 --- a/src/main/site/xdoc/metrics.xml +++ /dev/null @@ -1,150 +0,0 @@ -<?xml version="1.0" encoding="UTF-8"?> -<!-- -Licensed to the Apache Software Foundation (ASF) under one -or more contributor license agreements. See the NOTICE file -distributed with this work for additional information -regarding copyright ownership. The ASF licenses this file -to you under the Apache License, Version 2.0 (the -"License"); you may not use this file except in compliance -with the License. You may obtain a copy of the License at - - http://www.apache.org/licenses/LICENSE-2.0 - -Unless required by applicable law or agreed to in writing, -software distributed under the License is distributed on an -"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY -KIND, either express or implied. See the License for the -specific language governing permissions and limitations -under the License. ---> -<document xmlns="http://maven.apache.org/XDOC/2.0"; - xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; - xsi:schemaLocation="http://maven.apache.org/XDOC/2.0 http://maven.apache.org/xsd/xdoc-2.0.xsd";> - <properties> - <title> - Apache HBase (TM) Metrics - </title> - </properties> - - <body> - <section name="Introduction"> - <p> - Apache HBase (TM) emits Hadoop <a href="http://hadoop.apache.org/core/docs/current/api/org/apache/hadoop/metrics/package-summary.html";>metrics</a>. - </p> - </section> - <section name="Setup"> - <p>First read up on Hadoop <a href="http://hadoop.apache.org/core/docs/current/api/org/apache/hadoop/metrics/package-summary.html";>metrics</a>. - If you are using ganglia, the <a href="http://wiki.apache.org/hadoop/GangliaMetrics";>GangliaMetrics</a> - wiki page is useful read.</p> - <p>To have HBase emit metrics, edit <code>$HBASE_HOME/conf/hadoop-metrics.properties</code> - and enable metric 'contexts' per plugin. As of this writing, hadoop supports - <strong>file</strong> and <strong>ganglia</strong> plugins. - Yes, the hbase metrics files is named hadoop-metrics rather than - <em>hbase-metrics</em> because currently at least the hadoop metrics system has the - properties filename hardcoded. Per metrics <em>context</em>, - comment out the NullContext and enable one or more plugins instead. - </p> - <p> - If you enable the <em>hbase</em> context, on regionservers you'll see total requests since last - metric emission, count of regions and storefiles as well as a count of memstore size. - On the master, you'll see a count of the cluster's requests. - </p> - <p> - Enabling the <em>rpc</em> context is good if you are interested in seeing - metrics on each hbase rpc method invocation (counts and time taken). - </p> - <p> - The <em>jvm</em> context is - useful for long-term stats on running hbase jvms -- memory used, thread counts, etc. - As of this writing, if more than one jvm is running emitting metrics, at least - in ganglia, the stats are aggregated rather than reported per instance. - </p> - </section> - - <section name="Using with JMX"> - <p> - In addition to the standard output contexts supported by the Hadoop - metrics package, you can also export HBase metrics via Java Management - Extensions (JMX). This will allow viewing HBase stats in JConsole or - any other JMX client. - </p> - <section name="Enable HBase stats collection"> - <p> - To enable JMX support in HBase, first edit - <code>$HBASE_HOME/conf/hadoop-metrics.properties</code> to support - metrics refreshing. (If you've running 0.94.1 and above, or have already configured - <code>hadoop-metrics.properties</code> for another output context, - you can skip this step). - </p> - <source> -# Configuration of the "hbase" context for null -hbase.class=org.apache.hadoop.metrics.spi.NullContextWithUpdateThread -hbase.period=60 - -# Configuration of the "jvm" context for null -jvm.class=org.apache.hadoop.metrics.spi.NullContextWithUpdateThread -jvm.period=60 - -# Configuration of the "rpc" context for null -rpc.class=org.apache.hadoop.metrics.spi.NullContextWithUpdateThread -rpc.period=60 - </source> - </section> - <section name="Setup JMX remote access"> - <p> - For remote access, you will need to configure JMX remote passwords - and access profiles. Create the files: - </p> - <dl> - <dt><code>$HBASE_HOME/conf/jmxremote.passwd</code> (set permissions - to 600)</dt> - <dd> - <source> -monitorRole monitorpass -controlRole controlpass - </source> - </dd> - - <dt><code>$HBASE_HOME/conf/jmxremote.access</code></dt> - <dd> - <source> -monitorRole readonly -controlRole readwrite - </source> - </dd> - </dl> - </section> - <section name="Configure JMX in HBase startup"> - <p> - Finally, edit the <code>$HBASE_HOME/conf/hbase-env.sh</code> - script to add JMX support: - </p> - <dl> - <dt><code>$HBASE_HOME/conf/hbase-env.sh</code></dt> - <dd> - <p>Add the lines:</p> - <source> -HBASE_JMX_OPTS="-Dcom.sun.management.jmxremote -Dcom.sun.management.jmxremote.ssl=false" -HBASE_JMX_OPTS="$HBASE_JMX_OPTS -Dcom.sun.management.jmxremote.password.file=$HBASE_HOME/conf/jmxremote.passwd" -HBASE_JMX_OPTS="$HBASE_JMX_OPTS -Dcom.sun.management.jmxremote.access.file=$HBASE_HOME/conf/jmxremote.access" - -export HBASE_MASTER_OPTS="$HBASE_JMX_OPTS -Dcom.sun.management.jmxremote.port=10101" -export HBASE_REGIONSERVER_OPTS="$HBASE_JMX_OPTS -Dcom.sun.management.jmxremote.port=10102" - </source> - </dd> - </dl> - <p> - After restarting the processes you want to monitor, you should now be - able to run JConsole (included with the JDK since JDK 5.0) to view - the statistics via JMX. HBase MBeans are exported under the - <strong><code>hadoop</code></strong> domain in JMX. - </p> - </section> - <section name="Understanding HBase Metrics"> - <p> - For more information on understanding HBase metrics, see the <a href="book.html#hbase_metrics">metrics section</a> in the Apache HBase Reference Guide. - </p> - </section> - </section> - </body> -</document> http://git-wip-us.apache.org/repos/asf/hbase/blob/61d70604/src/main/site/xdoc/old_news.xml ---------------------------------------------------------------------- diff --git a/src/main/site/xdoc/old_news.xml b/src/main/site/xdoc/old_news.xml deleted file mode 100644 index 94e1882..0000000 --- a/src/main/site/xdoc/old_news.xml +++ /dev/null @@ -1,92 +0,0 @@ -<?xml version="1.0" encoding="UTF-8"?> -<!-- -Licensed to the Apache Software Foundation (ASF) under one -or more contributor license agreements. See the NOTICE file -distributed with this work for additional information -regarding copyright ownership. The ASF licenses this file -to you under the Apache License, Version 2.0 (the -"License"); you may not use this file except in compliance -with the License. You may obtain a copy of the License at - - http://www.apache.org/licenses/LICENSE-2.0 - -Unless required by applicable law or agreed to in writing, -software distributed under the License is distributed on an -"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY -KIND, either express or implied. See the License for the -specific language governing permissions and limitations -under the License. ---> - -<!DOCTYPE document PUBLIC "-//APACHE//DTD Documentation V2.0//EN" - "http://forrest.apache.org/dtd/document-v20.dtd";> - -<document xmlns="http://maven.apache.org/XDOC/2.0"; - xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; - xsi:schemaLocation="http://maven.apache.org/XDOC/2.0 http://maven.apache.org/xsd/xdoc-2.0.xsd";> - <properties> - <title> - Old Apache HBase (TM) News - </title> - </properties> - <body> - <section name="Old News"> - <p>February 10th, 2014 <a href="http://www.meetup.com/hbaseusergroup/events/163139322/";>HBase Meetup @ Continuuity</a> in Palo Alto</p> - <p>January 30th, 2014 <a href="http://www.meetup.com/hbaseusergroup/events/158491762/";>HBase Meetup @ Apple</a> in Cupertino</p> - <p>January 30th, 2014 <a href="http://www.meetup.com/Los-Angeles-HBase-User-group/events/160560282/";>Los Angeles HBase User Group</a> in El Segundo</p> - <p>October 24th, 2013 <a href="http://www.meetup.com/hbaseusergroup/events/140759692/";>HBase User and <a href="http://www.meetup.com/hackathon/events/144366512/";>Developer</a> Meetup at HortonWorks</a>.in Palo Alto</p> - <p>September 26, 2013 <a href="http://www.meetup.com/hbaseusergroup/events/135862292/";>HBase Meetup at Arista Networks</a>.in San Francisco</p> - <p>August 20th, 2013 <a href="http://www.meetup.com/hbaseusergroup/events/120534362/";>HBase Meetup at Flurry</a>.in San Francisco</p> - <p>July 16th, 2013 <a href="http://www.meetup.com/hbaseusergroup/events/119929152/";>HBase Meetup at Twitter</a>.in San Francisco</p> - <p>June 25th, 2013 <a href="http://www.meetup.com/hbaseusergroup/events/119154442/";>Hadoop Summit Meetup</a>.at San Jose Convention Center</p> - <p>June 14th, 2013 <a href="http://kijicon.eventbrite.com/";>KijiCon: Building Big Data Apps</a> in San Francisco.</p> - <p>June 13th, 2013 <a href="http://www.hbasecon.com/";>HBaseCon2013</a> in San Francisco. Submit an Abstract!</p> - <p>June 12th, 2013 <a href="http://www.meetup.com/hackathon/events/123403802/";>HBaseConHackAthon</a> at the Cloudera office in San Francisco.</p> - <p>April 11th, 2013 <a href="http://www.meetup.com/hbaseusergroup/events/103587852/";>HBase Meetup at AdRoll</a> in San Francisco</p> - <p>February 28th, 2013 <a href="http://www.meetup.com/hbaseusergroup/events/96584102/";>HBase Meetup at Intel Mission Campus</a></p> - <p>February 19th, 2013 <a href="http://www.meetup.com/hackathon/events/103633042/";>Developers PowWow</a> at HortonWorks' new digs</p> - <p>January 23rd, 2013 <a href="http://www.meetup.com/hbaseusergroup/events/91381312/";>HBase Meetup at WibiData World HQ!</a></p> - <p>December 4th, 2012 <a href="http://www.meetup.com/hackathon/events/90536432/";>0.96 Bug Squashing and Testing Hackathon</a> at Cloudera, SF.</p> - <p>October 29th, 2012 <a href="http://www.meetup.com/hbaseusergroup/events/82791572/";>HBase User Group Meetup</a> at Wize Commerce in San Mateo.</p> - <p>October 25th, 2012 <a href="http://www.meetup.com/HBase-NYC/events/81728932/";>Strata/Hadoop World HBase Meetup.</a> in NYC</p> - <p>September 11th, 2012 <a href="http://www.meetup.com/hbaseusergroup/events/80621872/";>Contributor's Pow-Wow at HortonWorks HQ.</a></p> - <p>August 8th, 2012 <a href="http://www.apache.org/dyn/closer.cgi/hbase/";>Apache HBase 0.94.1 is available for download</a></p> - <p>June 15th, 2012 <a href="http://www.meetup.com/hbaseusergroup/events/59829652/";>Birds-of-a-feather</a> in San Jose, day after <a href="http://hadoopsummit.org";>Hadoop Summit</a></p> - <p>May 23rd, 2012 <a href="http://www.meetup.com/hackathon/events/58953522/";>HackConAthon</a> in Palo Alto</p> - <p>May 22nd, 2012 <a href="http://www.hbasecon.com";>HBaseCon2012</a> in San Francisco</p> - <p>March 27th, 2012 <a href="http://www.meetup.com/hbaseusergroup/events/56021562/";>Meetup @ StumbleUpon</a> in San Francisco</p> - - <p>January 19th, 2012 <a href="http://www.meetup.com/hbaseusergroup/events/46702842/";>Meetup @ EBay</a></p> - <p>January 23rd, 2012 Apache HBase 0.92.0 released. <a href="http://www.apache.org/dyn/closer.cgi/hbase/";>Download it!</a></p> - <p>December 23rd, 2011 Apache HBase 0.90.5 released. <a href="http://www.apache.org/dyn/closer.cgi/hbase/";>Download it!</a></p> - <p>November 29th, 2011 <a href="http://www.meetup.com/hackathon/events/41025972/";>Developer Pow-Wow in SF</a> at Salesforce HQ</p> - <p>November 7th, 2011 <a href="http://www.meetup.com/hbaseusergroup/events/35682812/";>HBase Meetup in NYC (6PM)</a> at the AppNexus office</p> - <p>August 22nd, 2011 <a href="http://www.meetup.com/hbaseusergroup/events/28518471/";>HBase Hackathon (11AM) and Meetup (6PM)</a> at FB in PA</p> - <p>June 30th, 2011 <a href="http://www.meetup.com/hbaseusergroup/events/20572251/";>HBase Contributor Day</a>, the day after the <a href="http://developer.yahoo.com/events/hadoopsummit2011/";>Hadoop Summit</a> hosted by Y!</p> - <p>June 8th, 2011 <a href="http://berlinbuzzwords.de/wiki/hbase-workshop-and-hackathon";>HBase Hackathon</a> in Berlin to coincide with <a href="http://berlinbuzzwords.de/";>Berlin Buzzwords</a></p> - <p>May 19th, 2011 Apache HBase 0.90.3 released. <a href="http://www.apache.org/dyn/closer.cgi/hbase/";>Download it!</a></p> - <p>April 12th, 2011 Apache HBase 0.90.2 released. <a href="http://www.apache.org/dyn/closer.cgi/hbase/";>Download it!</a></p> - <p>March 21st, <a href="http://www.meetup.com/hackathon/events/16770852/";>HBase 0.92 Hackathon at StumbleUpon, SF</a></p> - <p>February 22nd, <a href="http://www.meetup.com/hbaseusergroup/events/16492913/";>HUG12: February HBase User Group at StumbleUpon SF</a></p> - <p>December 13th, <a href="http://www.meetup.com/hackathon/calendar/15597555/";>HBase Hackathon: Coprocessor Edition</a></p> - <p>November 19th, <a href="http://huguk.org/";>Hadoop HUG in London</a> is all about Apache HBase</p> - <p>November 15-19th, <a href="http://www.devoxx.com/display/Devoxx2K10/Home";>Devoxx</a> features HBase Training and multiple HBase presentations</p> - <p>October 12th, HBase-related presentations by core contributors and users at <a href="http://www.cloudera.com/company/press-center/hadoop-world-nyc/";>Hadoop World 2010</a></p> - <p>October 11th, <a href="http://www.meetup.com/hbaseusergroup/calendar/14606174/";>HUG-NYC: HBase User Group NYC Edition</a> (Night before Hadoop World)</p> - <p>June 30th, <a href="http://www.meetup.com/hbaseusergroup/calendar/13562846/";>Apache HBase Contributor Workshop</a> (Day after Hadoop Summit)</p> - <p>May 10th, 2010: Apache HBase graduates from Hadoop sub-project to Apache Top Level Project </p> - <p>Signup for <a href="http://www.meetup.com/hbaseusergroup/calendar/12689490/";>HBase User Group Meeting, HUG10</a> hosted by Trend Micro, April 19th, 2010</p> - - <p><a href="http://www.meetup.com/hbaseusergroup/calendar/12689351/";>HBase User Group Meeting, HUG9</a> hosted by Mozilla, March 10th, 2010</p> - <p>Sign up for the <a href="http://www.meetup.com/hbaseusergroup/calendar/12241393/";>HBase User Group Meeting, HUG8</a>, January 27th, 2010 at StumbleUpon in SF</p> - <p>September 8th, 2010: Apache HBase 0.20.0 is faster, stronger, slimmer, and sweeter tasting than any previous Apache HBase release. Get it off the <a href="http://www.apache.org/dyn/closer.cgi/hbase/";>Releases</a> page.</p> - <p><a href="http://dev.us.apachecon.com/c/acus2009/";>ApacheCon</a> in Oakland: November 2-6th, 2009: - The Apache Foundation will be celebrating its 10th anniversary in beautiful Oakland by the Bay. Lots of good talks and meetups including an HBase presentation by a couple of the lads.</p> - <p>HBase at Hadoop World in NYC: October 2nd, 2009: A few of us will be talking on Practical HBase out east at <a href="http://www.cloudera.com/hadoop-world-nyc";>Hadoop World: NYC</a>.</p> - <p>HUG7 and HBase Hackathon: August 7th-9th, 2009 at StumbleUpon in SF: Sign up for the <a href="http://www.meetup.com/hbaseusergroup/calendar/10950511/";>HBase User Group Meeting, HUG7</a> or for the <a href="http://www.meetup.com/hackathon/calendar/10951718/";>Hackathon</a> or for both (all are welcome!).</p> - <p>June, 2009 -- HBase at HadoopSummit2009 and at NOSQL: See the <a href="http://wiki.apache.org/hadoop/HBase/HBasePresentations";>presentations</a></p> - <p>March 3rd, 2009 -- HUG6: <a href="http://www.meetup.com/hbaseusergroup/calendar/9764004/";>HBase User Group 6</a></p> - <p>January 30th, 2009 -- LA Hbackathon:<a href="http://www.meetup.com/hbasela/calendar/9450876/";>HBase January Hackathon Los Angeles</a> at <a href="http://streamy.com"; >Streamy</a> in Manhattan Beach</p> - </section> - </body> -</document> http://git-wip-us.apache.org/repos/asf/hbase/blob/61d70604/src/main/site/xdoc/poweredbyhbase.xml ---------------------------------------------------------------------- diff --git a/src/main/site/xdoc/poweredbyhbase.xml b/src/main/site/xdoc/poweredbyhbase.xml deleted file mode 100644 index ff1ba59..0000000 --- a/src/main/site/xdoc/poweredbyhbase.xml +++ /dev/null @@ -1,398 +0,0 @@ -<?xml version="1.0" encoding="UTF-8"?> -<!-- -Licensed to the Apache Software Foundation (ASF) under one -or more contributor license agreements. See the NOTICE file -distributed with this work for additional information -regarding copyright ownership. The ASF licenses this file -to you under the Apache License, Version 2.0 (the -"License"); you may not use this file except in compliance -with the License. You may obtain a copy of the License at - - http://www.apache.org/licenses/LICENSE-2.0 - -Unless required by applicable law or agreed to in writing, -software distributed under the License is distributed on an -"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY -KIND, either express or implied. See the License for the -specific language governing permissions and limitations -under the License. ---> -<document xmlns="http://maven.apache.org/XDOC/2.0"; - xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; - xsi:schemaLocation="http://maven.apache.org/XDOC/2.0 http://maven.apache.org/xsd/xdoc-2.0.xsd";> - <properties> - <title>Powered By Apache HBase™</title> - </properties> - -<body> -<section name="Powered By Apache HBase™"> - <p>This page lists some institutions and projects which are using HBase. To - have your organization added, file a documentation JIRA or email - <a href="mailto:[email protected]";>hbase-dev</a> with the relevant - information. If you notice out-of-date information, use the same avenues to - report it. - </p> - <p><b>These items are user-submitted and the HBase team assumes no responsibility for their accuracy.</b></p> - <dl> - <dt><a href="http://www.adobe.com";>Adobe</a></dt> - <dd>We currently have about 30 nodes running HDFS, Hadoop and HBase in clusters - ranging from 5 to 14 nodes on both production and development. We plan a - deployment on an 80 nodes cluster. We are using HBase in several areas from - social services to structured data and processing for internal use. We constantly - write data to HBase and run mapreduce jobs to process then store it back to - HBase or external systems. Our production cluster has been running since Oct 2008.</dd> - - <dt><a href="http://spark-packages.org/package/Huawei-Spark/Spark-SQL-on-HBase";>Project Astro</a></dt> - <dd> - Astro provides fast Spark SQL/DataFrame capabilities to HBase data, - featuring super-efficient access to multi-dimensional HBase rows through - native Spark execution in HBase coprocessor plus systematic and accurate - partition pruning and predicate pushdown from arbitrarily complex data - filtering logic. The batch load is optimized to run on the Spark execution - engine. Note that <a href="http://spark-packages.org/package/Huawei-Spark/Spark-SQL-on-HBase";>Spark-SQL-on-HBase</a> - is the release site. Interested parties are free to make clones and claim - to be "latest(and active)", but they are not endorsed by the owner. - </dd> - - <dt><a href="http://axibase.com/products/axibase-time-series-database/";>Axibase - Time Series Database (ATSD)</a></dt> - <dd>ATSD runs on top of HBase to collect, analyze and visualize time series - data at scale. ATSD capabilities include optimized storage schema, built-in - rule engine, forecasting algorithms (Holt-Winters and ARIMA) and next-generation - graphics designed for high-frequency data. Primary use cases: IT infrastructure - monitoring, data consolidation, operational historian in OPC environments.</dd> - - <dt><a href="http://www.benipaltechnologies.com";>Benipal Technologies</a></dt> - <dd>We have a 35 node cluster used for HBase and Mapreduce with Lucene / SOLR - and katta integration to create and finetune our search databases. Currently, - our HBase installation has over 10 Billion rows with 100s of datapoints per row. - We compute over 10<sup>18</sup> calculations daily using MapReduce directly on HBase. We - heart HBase.</dd> - - <dt><a href="https://github.com/ermanpattuk/BigSecret";>BigSecret</a></dt> - <dd>BigSecret is a security framework that is designed to secure Key-Value data, - while preserving efficient processing capabilities. It achieves cell-level - security, using combinations of different cryptographic techniques, in an - efficient and secure manner. It provides a wrapper library around HBase.</dd> - - <dt><a href="http://caree.rs";>Caree.rs</a></dt> - <dd>Accelerated hiring platform for HiTech companies. We use HBase and Hadoop - for all aspects of our backend - job and company data storage, analytics - processing, machine learning algorithms for our hire recommendation engine. - Our live production site is directly served from HBase. We use cascading for - running offline data processing jobs.</dd> - - <dt><a href="http://www.celer-tech.com/";>Celer Technologies</a></dt> - <dd>Celer Technologies is a global financial software company that creates - modular-based systems that have the flexibility to meet tomorrow's business - environment, today. The Celer framework uses Hadoop/HBase for storing all - financial data for trading, risk, clearing in a single data store. With our - flexible framework and all the data in Hadoop/HBase, clients can build new - features to quickly extract data based on their trading, risk and clearing - activities from one single location.</dd> - - <dt><a href="http://www.explorys.net";>Explorys</a></dt> - <dd>Explorys uses an HBase cluster containing over a billion anonymized clinical - records, to enable subscribers to search and analyze patient populations, - treatment protocols, and clinical outcomes.</dd> - - <dt><a href="http://www.facebook.com/notes/facebook-engineering/the-underlying-technology-of-messages/454991608919";>Facebook</a></dt> - <dd>Facebook uses HBase to power their Messages infrastructure.</dd> - - <dt><a href="http://www.filmweb.pl";>Filmweb</a></dt> - <dd>Filmweb is a film web portal with a large dataset of films, persons and - movie-related entities. We have just started a small cluster of 3 HBase nodes - to handle our web cache persistency layer. We plan to increase the cluster - size, and also to start migrating some of the data from our databases which - have some demanding scalability requirements.</dd> - - <dt><a href="http://www.flurry.com";>Flurry</a></dt> - <dd>Flurry provides mobile application analytics. We use HBase and Hadoop for - all of our analytics processing, and serve all of our live requests directly - out of HBase on our 50 node production cluster with tens of billions of rows - over several tables.</dd> - - <dt><a href="http://gumgum.com";>GumGum</a></dt> - <dd>GumGum is an In-Image Advertising Platform. We use HBase on an 15-node - Amazon EC2 High-CPU Extra Large (c1.xlarge) cluster for both real-time data - and analytics. Our production cluster has been running since June 2010.</dd> - - <dt><a href="http://helprace.com/help-desk/";>Helprace</a></dt> - <dd>Helprace is a customer service platform which uses Hadoop for analytics - and internal searching and filtering. Being on HBase we can share our HBase - and Hadoop cluster with other Hadoop processes - this particularly helps in - keeping community speeds up. We use Hadoop and HBase on small cluster with 4 - cores and 32 GB RAM each.</dd> - - <dt><a href="http://hubspot.com";>HubSpot</a></dt> - <dd>HubSpot is an online marketing platform, providing analytics, email, and - segmentation of leads/contacts. HBase is our primary datastore for our customers' - customer data, with multiple HBase clusters powering the majority of our - product. We have nearly 200 regionservers across the various clusters, and - 2 hadoop clusters also with nearly 200 tasktrackers. We use c1.xlarge in EC2 - for both, but are starting to move some of that to baremetal hardware. We've - been running HBase for over 2 years.</dd> - - <dt><a href="http://www.infolinks.com/";>Infolinks</a></dt> - <dd>Infolinks is an In-Text ad provider. We use HBase to process advertisement - selection and user events for our In-Text ad network. The reports generated - from HBase are used as feedback for our production system to optimize ad - selection.</dd> - - <dt><a href="http://www.kalooga.com";>Kalooga</a></dt> - <dd>Kalooga is a discovery service for image galleries. We use Hadoop, HBase - and Pig on a 20-node cluster for our crawling, analysis and events - processing.</dd> - - <dt><a href="http://www.leanxcale.com/";>LeanXcale</a></dt> - <dd>LeanXcale provides an ultra-scalable transactional & SQL database that - stores its data on HBase and it is able to scale to 1000s of nodes. It - also provides a standalone full ACID HBase with transactions across - arbitrary sets of rows and tables.</dd> - - - <dt><a href="http://www.mahalo.com";>Mahalo</a></dt> - <dd>Mahalo, "...the world's first human-powered search engine". All the markup - that powers the wiki is stored in HBase. It's been in use for a few months now. - MediaWiki - the same software that power Wikipedia - has version/revision control. - Mahalo's in-house editors produce a lot of revisions per day, which was not - working well in a RDBMS. An hbase-based solution for this was built and tested, - and the data migrated out of MySQL and into HBase. Right now it's at something - like 6 million items in HBase. The upload tool runs every hour from a shell - script to back up that data, and on 6 nodes takes about 5-10 minutes to run - - and does not slow down production at all.</dd> - - <dt><a href="http://www.meetup.com";>Meetup</a></dt> - <dd>Meetup is on a mission to help the worldâs people self-organize into local - groups. We use Hadoop and HBase to power a site-wide, real-time activity - feed system for all of our members and groups. Group activity is written - directly to HBase, and indexed per member, with the member's custom feed - served directly from HBase for incoming requests. We're running HBase - 0.20.0 on a 11 node cluster.</dd> - - <dt><a href="http://www.mendeley.com";>Mendeley</a></dt> - <dd>Mendeley is creating a platform for researchers to collaborate and share - their research online. HBase is helping us to create the world's largest - research paper collection and is being used to store all our raw imported data. - We use a lot of map reduce jobs to process these papers into pages displayed - on the site. We also use HBase with Pig to do analytics and produce the article - statistics shown on the web site. You can find out more about how we use HBase - in the <a href="http://www.slideshare.net/danharvey/hbase-at-mendeley";>HBase - At Mendeley</a> slide presentation.</dd> - - <dt><a href="http://www.ngdata.com";>NGDATA</a></dt> - <dd>NGDATA delivers <a href="http://www.ngdata.com/site/products/lily.html";>Lily</a>, - the consumer intelligence solution that delivers a unique combination of Big - Data management, machine learning technologies and consumer intelligence - applications in one integrated solution to allow better, and more dynamic, - consumer insights. Lily allows companies to process and analyze massive structured - and unstructured data, scale storage elastically and locate actionable data - quickly from large data sources in near real time.</dd> - - <dt><a href="http://ning.com";>Ning</a></dt> - <dd>Ning uses HBase to store and serve the results of processing user events - and log files, which allows us to provide near-real time analytics and - reporting. We use a small cluster of commodity machines with 4 cores and 16GB - of RAM per machine to handle all our analytics and reporting needs.</dd> - - <dt><a href="http://www.worldcat.org";>OCLC</a></dt> - <dd>OCLC uses HBase as the main data store for WorldCat, a union catalog which - aggregates the collections of 72,000 libraries in 112 countries and territories. - WorldCat is currently comprised of nearly 1 billion records with nearly 2 - billion library ownership indications. We're running a 50 Node HBase cluster - and a separate offline map-reduce cluster.</dd> - - <dt><a href="http://olex.openlogic.com";>OpenLogic</a></dt> - <dd>OpenLogic stores all the world's Open Source packages, versions, files, - and lines of code in HBase for both near-real-time access and analytical - purposes. The production cluster has well over 100TB of disk spread across - nodes with 32GB+ RAM and dual-quad or dual-hex core CPU's.</dd> - - <dt><a href="http://www.openplaces.org";>Openplaces</a></dt> - <dd>Openplaces is a search engine for travel that uses HBase to store terabytes - of web pages and travel-related entity records (countries, cities, hotels, - etc.). We have dozens of MapReduce jobs that crunch data on a daily basis. - We use a 20-node cluster for development, a 40-node cluster for offline - production processing and an EC2 cluster for the live web site.</dd> - - <dt><a href="http://www.pnl.gov";>Pacific Northwest National Laboratory</a></dt> - <dd>Hadoop and HBase (Cloudera distribution) are being used within PNNL's - Computational Biology & Bioinformatics Group for a systems biology data - warehouse project that integrates high throughput proteomics and transcriptomics - data sets coming from instruments in the Environmental Molecular Sciences - Laboratory, a US Department of Energy national user facility located at PNNL. - The data sets are being merged and annotated with other public genomics - information in the data warehouse environment, with Hadoop analysis programs - operating on the annotated data in the HBase tables. This work is hosted by - <a href="http://www.pnl.gov/news/release.aspx?id=908";>olympus</a>, a large PNNL - institutional computing cluster, with the HBase tables being stored in olympus's - Lustre file system.</dd> - - <dt><a href="http://www.readpath.com/";>ReadPath</a></dt> - <dd>|ReadPath uses HBase to store several hundred million RSS items and dictionary - for its RSS newsreader. Readpath is currently running on an 8 node cluster.</dd> - - <dt><a href="http://resu.me/";>resu.me</a></dt> - <dd>Career network for the net generation. We use HBase and Hadoop for all - aspects of our backend - user and resume data storage, analytics processing, - machine learning algorithms for our job recommendation engine. Our live - production site is directly served from HBase. We use cascading for running - offline data processing jobs.</dd> - - <dt><a href="http://www.runa.com/";>Runa Inc.</a></dt> - <dd>Runa Inc. offers a SaaS that enables online merchants to offer dynamic - per-consumer, per-product promotions embedded in their website. To implement - this we collect the click streams of all their visitors to determine along - with the rules of the merchant what promotion to offer the visitor at different - points of their browsing the Merchant website. So we have lots of data and have - to do lots of off-line and real-time analytics. HBase is the core for us. - We also use Clojure and our own open sourced distributed processing framework, - Swarmiji. The HBase Community has been key to our forward movement with HBase. - We're looking for experienced developers to join us to help make things go even - faster!</dd> - - <dt><a href="http://www.sematext.com/";>Sematext</a></dt> - <dd>Sematext runs - <a href="http://www.sematext.com/search-analytics/index.html";>Search Analytics</a>, - a service that uses HBase to store search activity and MapReduce to produce - reports showing user search behaviour and experience. Sematext runs - <a href="http://www.sematext.com/spm/index.html";>Scalable Performance Monitoring (SPM)</a>, - a service that uses HBase to store performance data over time, crunch it with - the help of MapReduce, and display it in a visually rich browser-based UI. - Interestingly, SPM features - <a href="http://www.sematext.com/spm/hbase-performance-monitoring/index.html";>SPM for HBase</a>, - which is specifically designed to monitor all HBase performance metrics.</dd> - - <dt><a href="http://www.socialmedia.com/";>SocialMedia</a></dt> - <dd>SocialMedia uses HBase to store and process user events which allows us to - provide near-realtime user metrics and reporting. HBase forms the heart of - our Advertising Network data storage and management system. We use HBase as - a data source and sink for both realtime request cycle queries and as a - backend for mapreduce analysis.</dd> - - <dt><a href="http://www.splicemachine.com/";>Splice Machine</a></dt> - <dd>Splice Machine is built on top of HBase. Splice Machine is a full-featured - ANSI SQL database that provides real-time updates, secondary indices, ACID - transactions, optimized joins, triggers, and UDFs.</dd> - - <dt><a href="http://www.streamy.com/";>Streamy</a></dt> - <dd>Streamy is a recently launched realtime social news site. We use HBase - for all of our data storage, query, and analysis needs, replacing an existing - SQL-based system. This includes hundreds of millions of documents, sparse - matrices, logs, and everything else once done in the relational system. We - perform significant in-memory caching of query results similar to a traditional - Memcached/SQL setup as well as other external components to perform joining - and sorting. We also run thousands of daily MapReduce jobs using HBase tables - for log analysis, attention data processing, and feed crawling. HBase has - helped us scale and distribute in ways we could not otherwise, and the - community has provided consistent and invaluable assistance.</dd> - - <dt><a href="http://www.stumbleupon.com/";>Stumbleupon</a></dt> - <dd>Stumbleupon and <a href="http://su.pr";>Su.pr</a> use HBase as a real time - data storage and analytics platform. Serving directly out of HBase, various site - features and statistics are kept up to date in a real time fashion. We also - use HBase a map-reduce data source to overcome traditional query speed limits - in MySQL.</dd> - - <dt><a href="http://www.tokenizer.org";>Shopping Engine at Tokenizer</a></dt> - <dd>Shopping Engine at Tokenizer is a web crawler; it uses HBase to store URLs - and Outlinks (AnchorText + LinkedURL): more than a billion. It was initially - designed as Nutch-Hadoop extension, then (due to very specific 'shopping' - scenario) moved to SOLR + MySQL(InnoDB) (ten thousands queries per second), - and now - to HBase. HBase is significantly faster due to: no need for huge - transaction logs, column-oriented design exactly matches 'lazy' business logic, - data compression, !MapReduce support. Number of mutable 'indexes' (term from - RDBMS) significantly reduced due to the fact that each 'row::column' structure - is physically sorted by 'row'. MySQL InnoDB engine is best DB choice for - highly-concurrent updates. However, necessity to flash a block of data to - harddrive even if we changed only few bytes is obvious bottleneck. HBase - greatly helps: not-so-popular in modern DBMS 'delete-insert', 'mutable primary - key', and 'natural primary key' patterns become a big advantage with HBase.</dd> - - <dt><a href="http://traackr.com/";>Traackr</a></dt> - <dd>Traackr uses HBase to store and serve online influencer data in real-time. - We use MapReduce to frequently re-score our entire data set as we keep updating - influencer metrics on a daily basis.</dd> - - <dt><a href="http://trendmicro.com/";>Trend Micro</a></dt> - <dd>Trend Micro uses HBase as a foundation for cloud scale storage for a variety - of applications. We have been developing with HBase since version 0.1 and - production since version 0.20.0.</dd> - - <dt><a href="http://www.twitter.com";>Twitter</a></dt> - <dd>Twitter runs HBase across its entire Hadoop cluster. HBase provides a - distributed, read/write backup of all mysql tables in Twitter's production - backend, allowing engineers to run MapReduce jobs over the data while maintaining - the ability to apply periodic row updates (something that is more difficult - to do with vanilla HDFS). A number of applications including people search - rely on HBase internally for data generation. Additionally, the operations - team uses HBase as a timeseries database for cluster-wide monitoring/performance - data.</dd> - - <dt><a href="http://www.udanax.org";>Udanax.org</a></dt> - <dd>Udanax.org is a URL shortener which use 10 nodes HBase cluster to store URLs, - Web Log data and response the real-time request on its Web Server. This - application is now used for some twitter clients and a number of web sites. - Currently API requests are almost 30 per second and web redirection requests - are about 300 per second.</dd> - - <dt><a href="http://www.veoh.com/";>Veoh Networks</a></dt> - <dd>Veoh Networks uses HBase to store and process visitor (human) and entity - (non-human) profiles which are used for behavioral targeting, demographic - detection, and personalization services. Our site reads this data in - real-time (heavily cached) and submits updates via various batch map/reduce - jobs. With 25 million unique visitors a month storing this data in a traditional - RDBMS is not an option. We currently have a 24 node Hadoop/HBase cluster and - our profiling system is sharing this cluster with our other Hadoop data - pipeline processes.</dd> - - <dt><a href="http://www.videosurf.com/";>VideoSurf</a></dt> - <dd>VideoSurf - "The video search engine that has taught computers to see". - We're using HBase to persist various large graphs of data and other statistics. - HBase was a real win for us because it let us store substantially larger - datasets without the need for manually partitioning the data and its - column-oriented nature allowed us to create schemas that were substantially - more efficient for storing and retrieving data.</dd> - - <dt><a href="http://www.visibletechnologies.com/";>Visible Technologies</a></dt> - <dd>Visible Technologies uses Hadoop, HBase, Katta, and more to collect, parse, - store, and search hundreds of millions of Social Media content. We get incredibly - fast throughput and very low latency on commodity hardware. HBase enables our - business to exist.</dd> - - <dt><a href="http://www.worldlingo.com/";>WorldLingo</a></dt> - <dd>The WorldLingo Multilingual Archive. We use HBase to store millions of - documents that we scan using Map/Reduce jobs to machine translate them into - all or selected target languages from our set of available machine translation - languages. We currently store 12 million documents but plan to eventually - reach the 450 million mark. HBase allows us to scale out as we need to grow - our storage capacities. Combined with Hadoop to keep the data replicated and - therefore fail-safe we have the backbone our service can rely on now and in - the future. !WorldLingo is using HBase since December 2007 and is along with - a few others one of the longest running HBase installation. Currently we are - running the latest HBase 0.20 and serving directly from it at - <a href="http://www.worldlingo.com/ma/enwiki/en/HBase";>MultilingualArchive</a>.</dd> - - <dt><a href="http://www.yahoo.com/";>Yahoo!</a></dt> - <dd>Yahoo! uses HBase to store document fingerprint for detecting near-duplications. - We have a cluster of few nodes that runs HDFS, mapreduce, and HBase. The table - contains millions of rows. We use this for querying duplicated documents with - realtime traffic.</dd> - - <dt><a href="http://h50146.www5.hp.com/products/software/security/icewall/eng/";>HP IceWall SSO</a></dt> - <dd>HP IceWall SSO is a web-based single sign-on solution and uses HBase to store - user data to authenticate users. We have supported RDB and LDAP previously but - have newly supported HBase with a view to authenticate over tens of millions - of users and devices.</dd> - - <dt><a href="http://www.ymc.ch/en/big-data-analytics-en?utm_source=hadoopwiki&utm_medium=poweredbypage&utm_campaign=ymc.ch";>YMC AG</a></dt> - <dd><ul> - <li>operating a Cloudera Hadoop/HBase cluster for media monitoring purpose</li> - <li>offering technical and operative consulting for the Hadoop stack + ecosystem</li> - <li>editor of <a href="http://www.ymc.ch/en/hbase-split-visualisation-introducing-hannibal?utm_source=hadoopwiki&utm_medium=poweredbypageamp;utm_campaign=ymc.ch";>Hannibal</a>, a open-source tool - to visualize HBase regions sizes and splits that helps running HBase in production</li> - </ul></dd> - </dl> -</section> -</body> -</document> http://git-wip-us.apache.org/repos/asf/hbase/blob/61d70604/src/main/site/xdoc/pseudo-distributed.xml ---------------------------------------------------------------------- diff --git a/src/main/site/xdoc/pseudo-distributed.xml b/src/main/site/xdoc/pseudo-distributed.xml deleted file mode 100644 index 670f1e7..0000000 --- a/src/main/site/xdoc/pseudo-distributed.xml +++ /dev/null @@ -1,42 +0,0 @@ -<?xml version="1.0" encoding="UTF-8"?> -<!-- -Licensed to the Apache Software Foundation (ASF) under one -or more contributor license agreements. See the NOTICE file -distributed with this work for additional information -regarding copyright ownership. The ASF licenses this file -to you under the Apache License, Version 2.0 (the -"License"); you may not use this file except in compliance -with the License. You may obtain a copy of the License at - - http://www.apache.org/licenses/LICENSE-2.0 - -Unless required by applicable law or agreed to in writing, -software distributed under the License is distributed on an -"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY -KIND, either express or implied. See the License for the -specific language governing permissions and limitations -under the License. ---> - -<!DOCTYPE document PUBLIC "-//APACHE//DTD Documentation V2.0//EN" - "http://forrest.apache.org/dtd/document-v20.dtd";> - -<document xmlns="http://maven.apache.org/XDOC/2.0"; - xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; - xsi:schemaLocation="http://maven.apache.org/XDOC/2.0 http://maven.apache.org/xsd/xdoc-2.0.xsd";> - <properties> - <title> -Running Apache HBase (TM) in pseudo-distributed mode - </title> - </properties> - - <body> - <p>This page has been retired. The contents have been moved to the - <a href="http://hbase.apache.org/book.html#distributed";>Distributed Operation: Pseudo- and Fully-distributed modes</a> section - in the Reference Guide. - </p> - - </body> - -</document> - http://git-wip-us.apache.org/repos/asf/hbase/blob/61d70604/src/main/site/xdoc/replication.xml ---------------------------------------------------------------------- diff --git a/src/main/site/xdoc/replication.xml b/src/main/site/xdoc/replication.xml deleted file mode 100644 index a2fcfcb..0000000 --- a/src/main/site/xdoc/replication.xml +++ /dev/null @@ -1,35 +0,0 @@ -<?xml version="1.0" encoding="UTF-8"?> -<!-- -Licensed to the Apache Software Foundation (ASF) under one -or more contributor license agreements. See the NOTICE file -distributed with this work for additional information -regarding copyright ownership. The ASF licenses this file -to you under the Apache License, Version 2.0 (the -"License"); you may not use this file except in compliance -with the License. You may obtain a copy of the License at - - http://www.apache.org/licenses/LICENSE-2.0 - -Unless required by applicable law or agreed to in writing, -software distributed under the License is distributed on an -"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY -KIND, either express or implied. See the License for the -specific language governing permissions and limitations -under the License. ---> - -<!DOCTYPE document PUBLIC "-//APACHE//DTD Documentation V2.0//EN" - "http://forrest.apache.org/dtd/document-v20.dtd";> - -<document xmlns="http://maven.apache.org/XDOC/2.0"; - xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; - xsi:schemaLocation="http://maven.apache.org/XDOC/2.0 http://maven.apache.org/xsd/xdoc-2.0.xsd";> - <properties> - <title> - Apache HBase (TM) Replication - </title> - </properties> - <body> - <p>This information has been moved to <a href="http://hbase.apache.org/book.html#cluster_replication";>the Cluster Replication</a> section of the <a href="http://hbase.apache.org/book.html";>Apache HBase Reference Guide</a>.</p> - </body> -</document> http://git-wip-us.apache.org/repos/asf/hbase/blob/61d70604/src/main/site/xdoc/resources.xml ---------------------------------------------------------------------- diff --git a/src/main/site/xdoc/resources.xml b/src/main/site/xdoc/resources.xml deleted file mode 100644 index 19548b6..0000000 --- a/src/main/site/xdoc/resources.xml +++ /dev/null @@ -1,45 +0,0 @@ -<?xml version="1.0" encoding="UTF-8"?> -<!-- -Licensed to the Apache Software Foundation (ASF) under one -or more contributor license agreements. See the NOTICE file -distributed with this work for additional information -regarding copyright ownership. The ASF licenses this file -to you under the Apache License, Version 2.0 (the -"License"); you may not use this file except in compliance -with the License. You may obtain a copy of the License at - - http://www.apache.org/licenses/LICENSE-2.0 - -Unless required by applicable law or agreed to in writing, -software distributed under the License is distributed on an -"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY -KIND, either express or implied. See the License for the -specific language governing permissions and limitations -under the License. ---> -<document xmlns="http://maven.apache.org/XDOC/2.0"; - xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; - xsi:schemaLocation="http://maven.apache.org/XDOC/2.0 http://maven.apache.org/xsd/xdoc-2.0.xsd";> - <properties> - <title>Other Apache HBase (TM) Resources</title> - </properties> - -<body> -<section name="Other Apache HBase Resources"> -<section name="Books"> -<section name="HBase: The Definitive Guide"> -<p><a href="http://shop.oreilly.com/product/0636920014348.do";>HBase: The Definitive Guide <i>Random Access to Your Planet-Size Data</i></a> by Lars George. Publisher: O'Reilly Media, Released: August 2011, Pages: 556.</p> -</section> -<section name="HBase In Action"> -<p><a href="http://www.manning.com/dimidukkhurana/";>HBase In Action</a> By Nick Dimiduk and Amandeep Khurana. Publisher: Manning, MEAP Began: January 2012, Softbound print: Fall 2012, Pages: 350.</p> -</section> -<section name="HBase Administration Cookbook"> -<p><a href="http://www.packtpub.com/hbase-administration-for-optimum-database-performance-cookbook/book";>HBase Administration Cookbook</a> by Yifeng Jiang. Publisher: PACKT Publishing, Release: Expected August 2012, Pages: 335.</p> -</section> -<section name="HBase High Performance Cookbook"> - <p><a href="https://www.packtpub.com/big-data-and-business-intelligence/hbase-high-performance-cookbook";>HBase High Performance Cookbook</a> by Ruchir Choudhry. Publisher: PACKT Publishing, Release: January 2017, Pages: 350.</p> -</section> -</section> -</section> -</body> -</document> http://git-wip-us.apache.org/repos/asf/hbase/blob/61d70604/src/main/site/xdoc/sponsors.xml ---------------------------------------------------------------------- diff --git a/src/main/site/xdoc/sponsors.xml b/src/main/site/xdoc/sponsors.xml deleted file mode 100644 index 332f56a..0000000 --- a/src/main/site/xdoc/sponsors.xml +++ /dev/null @@ -1,50 +0,0 @@ -<?xml version="1.0" encoding="UTF-8"?> -<!-- -Licensed to the Apache Software Foundation (ASF) under one -or more contributor license agreements. See the NOTICE file -distributed with this work for additional information -regarding copyright ownership. The ASF licenses this file -to you under the Apache License, Version 2.0 (the -"License"); you may not use this file except in compliance -with the License. You may obtain a copy of the License at - - http://www.apache.org/licenses/LICENSE-2.0 - -Unless required by applicable law or agreed to in writing, -software distributed under the License is distributed on an -"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY -KIND, either express or implied. See the License for the -specific language governing permissions and limitations -under the License. ---> -<document xmlns="http://maven.apache.org/XDOC/2.0"; - xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; - xsi:schemaLocation="http://maven.apache.org/XDOC/2.0 http://maven.apache.org/xsd/xdoc-2.0.xsd";> - <properties> - <title>Apache HBase™ Sponsors</title> - </properties> - -<body> -<section name="Sponsors"> - <p>First off, thanks to <a href="http://www.apache.org/foundation/thanks.html";>all who sponsor</a> - our parent, the Apache Software Foundation. - </p> -<p>The below companies have been gracious enough to provide their commerical tool offerings free of charge to the Apache HBase™ project. -<ul> - <li>The crew at <a href="http://www.ej-technologies.com/";>ej-technologies</a> have - been let us use <a href="http://www.ej-technologies.com/products/jprofiler/overview.html";>JProfiler</a> for years now.</li> - <li>The lads at <a href="http://headwaysoftware.com/";>headway software</a> have - given us a license for <a href="http://headwaysoftware.com/products/?code=Restructure101";>Restructure101</a> - so we can untangle our interdependency mess.</li> - <li><a href="http://www.yourkit.com";>YourKit</a> allows us to use their <a href="http://www.yourkit.com/overview/index.jsp";>Java Profiler</a>.</li> - <li>Some of us use <a href="http://www.jetbrains.com/idea";>IntelliJ IDEA</a> thanks to <a href="http://www.jetbrains.com/";>JetBrains</a>.</li> - <li>Thank you to Boris at <a href="http://www.vectorportal.com/";>Vector Portal</a> for granting us a license on the <a href="http://www.vectorportal.com/subcategory/205/KILLER-WHALE-FREE-VECTOR.eps/ifile/9136/detailtest.asp";>image</a> on which our logo is based.</li> -</ul> -</p> -</section> -<section name="Sponsoring the Apache Software Foundation"> -<p>To contribute to the Apache Software Foundation, a good idea in our opinion, see the <a href="http://www.apache.org/foundation/sponsorship.html";>ASF Sponsorship</a> page. -</p> -</section> -</body> -</document> http://git-wip-us.apache.org/repos/asf/hbase/blob/61d70604/src/main/site/xdoc/supportingprojects.xml ---------------------------------------------------------------------- diff --git a/src/main/site/xdoc/supportingprojects.xml b/src/main/site/xdoc/supportingprojects.xml deleted file mode 100644 index f949a57..0000000 --- a/src/main/site/xdoc/supportingprojects.xml +++ /dev/null @@ -1,161 +0,0 @@ -<?xml version="1.0" encoding="UTF-8"?> -<!-- -Licensed to the Apache Software Foundation (ASF) under one -or more contributor license agreements. See the NOTICE file -distributed with this work for additional information -regarding copyright ownership. The ASF licenses this file -to you under the Apache License, Version 2.0 (the -"License"); you may not use this file except in compliance -with the License. You may obtain a copy of the License at - - http://www.apache.org/licenses/LICENSE-2.0 - -Unless required by applicable law or agreed to in writing, -software distributed under the License is distributed on an -"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY -KIND, either express or implied. See the License for the -specific language governing permissions and limitations -under the License. ---> -<document xmlns="http://maven.apache.org/XDOC/2.0"; - xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; - xsi:schemaLocation="http://maven.apache.org/XDOC/2.0 http://maven.apache.org/xsd/xdoc-2.0.xsd";> - <properties> - <title>Supporting Projects</title> - </properties> - -<body> -<section name="Supporting Projects"> - <p>This page is a list of projects that are related to HBase. To - have your project added, file a documentation JIRA or email - <a href="mailto:[email protected]";>hbase-dev</a> with the relevant - information. If you notice out-of-date information, use the same avenues to - report it. - </p> - <p><b>These items are user-submitted and the HBase team assumes no responsibility for their accuracy.</b></p> - <h3>Projects that add new features to HBase</h3> - <dl> - <dt><a href="https://github.com/XiaoMi/themis/";>Themis</a></dt> - <dd>Themis provides cross-row/cross-table transaction on HBase based on - Google's Percolator.</dd> - <dt><a href="https://github.com/caskdata/tephra";>Tephra</a></dt> - <dd>Cask Tephra provides globally consistent transactions on top of Apache - HBase.</dd> - <dt><a href="https://github.com/VCNC/haeinsa";>Haeinsa</a></dt> - <dd>Haeinsa is linearly scalable multi-row, multi-table transaction library - for HBase.</dd> - <dt><a href="https://github.com/juwi/HBase-TAggregator";>HBase TAggregator</a></dt> - <dd>An HBase coprocessor for timeseries-based aggregations.</dd> - <dt><a href="http://trafodion.incubator.apache.org/";>Apache Trafodion</a></dt> - <dd>Apache Trafodion is a webscale SQL-on-Hadoop solution enabling - transactional or operational workloads on Hadoop.</dd> - <dt><a href="http://phoenix.apache.org/";>Apache Phoenix</a></dt> - <dd>Apache Phoenix is a relational database layer over HBase delivered as a - client-embedded JDBC driver targeting low latency queries over HBase data.</dd> - <dt><a href="https://github.com/cloudera/hue/tree/master/apps/hbase";>Hue HBase Browser</a></dt> - <dd>An Easy & Powerful WebUI for HBase, distributed with <a href="https://www.gethue.com";>Hue</a>.</dd> - <dt><a href="https://github.com/NGDATA/hbase-indexer/tree/master/hbase-sep";>HBase SEP</a></dt> - <dd>the HBase Side Effect Processor, a system for asynchronously and reliably listening to HBase - mutation events, based on HBase replication.</dd> - <dt><a href="https://github.com/ngdata/hbase-indexer";>Lily HBase Indexer</a></dt> - <dd>indexes HBase content to Solr by listening to the replication stream - (uses the HBase SEP).</dd> - <dt><a href="https://github.com/sonalgoyal/crux/";>Crux</a></dt> - <dd> - HBase Reporting and Analysis with support for simple and composite keys, - get and range scans, column based filtering, charting.</dd> - <dt><a href="https://github.com/yahoo/omid/";>Omid</a></dt> - <dd> - Lock-free transactional support on top of HBase providing Snapshot - Isolation.</dd> - <dt><a href="http://dev.tailsweep.com/projects/parhely";>Parhely</a></dt> - <dd>ORM for HBase</dd> - <dt><a href="http://code.google.com/p/hbase-writer/";>HBase-Writer</a></dt> - <dd> Heritrix2 Processor for writing crawls to HBase.</dd> - <dt><a href="http://www.pigi-project.org/";>Pigi Project</a></dt> - <dd>The Pigi Project is an ORM-like framework. It includes a configurable - index system and a simple object to HBase mapping framework (or indexing for - HBase if you like). Designed for use by web applications.</dd> - <dt><a href="http://code.google.com/p/hbase-thrift/";>hbase-thrift</a></dt> - <dd>hbase-thrift generates and installs Perl and Python Thrift bindings for - HBase.</dd> - <dt><a href="http://belowdeck.kissintelligentsystems.com/ohm";>OHM</a></dt> - <dd>OHM is a weakly relational ORM for HBase which provides Object Mapping and - Column indexing. It has its own compiler capable of generating interface - code for multiple languages. Currently C# (via the Thrift API), with support - for Java currently in development. The compiler is easily extensible to add - support for other languages.</dd> - <dt><a href="http://datastore.googlecode.com";>datastore</a></dt> - <dd>Aims to be an implementation of the - <a href="http://code.google.com/appengine/docs/python/datastore/";>Google app-engine datastore</a> - in Java using HBase instead of bigtable.</dd> - <dt><a href="http://datanucleus.org";>DataNucleus</a></dt> - <dd>DataNucleus is a Java JDO/JPA/REST implementation. It supports HBase and - many other datastores.</dd> - <dt><a href="http://github.com/impetus-opensource/Kundera";>Kundera</a></dt> - <dd>Kundera is a JPA 2.0 based object-datastore mapping library for HBase, - Cassandra and MongoDB.</dd> - <dt><a href="http://github.com/zohmg/zohmg/tree/master";>Zohmg</a></dt> - <dd>Zohmg is a time-series data store that uses HBase as its backing store.</dd> - <dt><a href="http://grails.org/plugin/gorm-hbase";>Grails Support</a></dt> - <dd>Grails HBase plug-in.</dd> - <dt><a href="http://www.bigrecord.org";>BigRecord</a></dt> - <dd>is an active_record-based object mapping layer for Ruby on Rails.</dd> - <dt><a href="http://github.com/greglu/hbase-stargate";>hbase-stargate</a></dt> - <dd>Ruby client for HBase Stargate.</dd> - <dt><a href="http://github.com/ghelmling/meetup.beeno";>Meetup.Beeno</a></dt> - <dd>Meetup.Beeno is a simple HBase Java "beans" mapping framework based on - annotations. It includes a rudimentary high level query API that generates - the appropriate server-side filters.</dd> - <dt><a href="http://www.springsource.org/spring-data/hadoop";>Spring Hadoop</a></dt> - <dd> - The Spring Hadoop project provides support for writing Apache Hadoop - applications that benefit from the features of Spring, Spring Batch and - Spring Integration.</dd> - <dt><a href="https://jira.springsource.org/browse/SPR-5950";>Spring Framework HBase Template</a></dt> - <dd>Spring Framework HBase Template provides HBase data access templates - similar to what is provided in Spring for JDBC, Hibernate, iBatis, etc. - If you find this useful, please vote for its inclusion in the Spring Framework.</dd> - <dt><a href="http://github.com/davidsantiago/clojure-hbase";>Clojure-HBase</a></dt> - <dd>A library for convenient access to HBase from Clojure.</dd> - <dt><a href="http://www.lilyproject.org/lily/about/playground/hbaseindexes.html";>HBase indexing library</a></dt> - <dd>A library for building and querying HBase-table-based indexes.</dd> - <dt><a href="http://github.com/akkumar/hbasene";>HBasene</a></dt> - <dd>Lucene+HBase - Using HBase as the backing store for the TF-IDF - representations needed by Lucene. Also, contains a library for constructing - lucene indices from HBase schema.</dd> - <dt><a href="http://github.com/larsgeorge/jmxtoolkit";>JMXToolkit</a></dt> - <dd>A HBase tailored JMX toolkit enabling monitoring with Cacti and checking - with Nagios or similar.</dd> - <dt><a href="http://github.com/ykulbak/ihbase";>IHBASE</a></dt> - <dd>IHBASE provides faster scans by indexing regions, each region has its own - index. The indexed columns are user-defined and indexes can be intersected or - joined in a single query.</dd> - <dt><a href="http://github.com/apurtell/hbase-ec2";>HBASE EC2 scripts</a></dt> - <dd>This collection of bash scripts allows you to run HBase clusters on - Amazon's Elastic Compute Cloud (EC2) service with best practices baked in.</dd> - <dt><a href="http://github.com/apurtell/hbase-stargate";>Stargate</a></dt> - <dd>Stargate provides an enhanced RESTful interface.</dd> - <dt><a href="http://github.com/hbase-trx/hbase-transactional-tableindexed";>HBase-trx</a></dt> - <dd>HBase-trx provides Transactional (JTA) and indexed extensions of HBase.</dd> - <dt><a href="http://github.com/simplegeo/python-hbase-thrift";>HBase Thrift Python client Debian package</a></dt> - <dd>Debian packages for the HBase Thrift Python client (see readme for - sources.list setup)</dd> - <dt><a href="http://github.com/amitrathore/capjure";>capjure</a></dt> - <dd>capjure is a persistence helper for HBase. It is written in the Clojure - language, and supports persisting of native hash-maps.</dd> - <dt><a href="http://github.com/sematext/HBaseHUT";>HBaseHUT</a></dt> - <dd>(High Update Throughput for HBase) It focuses on write performance during - records update (by avoiding doing Get on every Put to update record).</dd> - <dt><a href="http://github.com/sematext/HBaseWD";>HBaseWD</a></dt> - <dd>HBase Writes Distributor spreads records over the cluster even when their - keys are sequential, while still allowing fast range scans over them</dd> - <dt><a href="http://code.google.com/p/hbase-jdo/";>HBase UI Tool & Util</a></dt> - <dd>HBase UI Tool & Util is an HBase UI client and simple util module. - It can handle hbase more easily like jdo(not persistence api)</dd> - </dl> - <h3>Example HBase Applications</h3> - <ul> - <li><a href="http://github.com/andreisavu/feedaggregator";>HBase powered feed aggregator</a> - by Savu Andrei -- 200909</li> - </ul> -</section> -</body> -</document> http://git-wip-us.apache.org/repos/asf/hbase/blob/61d70604/src/site/asciidoc/acid-semantics.adoc ---------------------------------------------------------------------- diff --git a/src/site/asciidoc/acid-semantics.adoc b/src/site/asciidoc/acid-semantics.adoc new file mode 100644 index 0000000..0b56aa8 --- /dev/null +++ b/src/site/asciidoc/acid-semantics.adoc @@ -0,0 +1,118 @@ +//// +Licensed to the Apache Software Foundation (ASF) under one +or more contributor license agreements. See the NOTICE file +distributed with this work for additional information +regarding copyright ownership. The ASF licenses this file +to you under the Apache License, Version 2.0 (the +"License"); you may not use this file except in compliance +with the License. You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + +Unless required by applicable law or agreed to in writing, +software distributed under the License is distributed on an +"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY +KIND, either express or implied. See the License for the +specific language governing permissions and limitations +under the License. +//// + += Apache HBase (TM) ACID Properties + +== About this Document + +Apache HBase (TM) is not an ACID compliant database. However, it does guarantee certain specific properties. + +This specification enumerates the ACID properties of HBase. + +== Definitions + +For the sake of common vocabulary, we define the following terms: +Atomicity:: + An operation is atomic if it either completes entirely or not at all. + +Consistency:: + All actions cause the table to transition from one valid state directly to another (eg a row will not disappear during an update, etc). + +Isolation:: + an operation is isolated if it appears to complete independently of any other concurrent transaction. + +Durability:: + Any update that reports "successful" to the client will not be lost. + +Visibility:: + An update is considered visible if any subsequent read will see the update as having been committed. + + +The terms _must_ and _may_ are used as specified by link:[RFC 2119]. + +In short, the word "must" implies that, if some case exists where the statement is not true, it is a bug. The word _may_ implies that, even if the guarantee is provided in a current release, users should not rely on it. + +== APIs to Consider +- Read APIs +* get +* scan +- Write APIs +* put +* batch put +* delete +- Combination (read-modify-write) APIs +* incrementColumnValue +* checkAndPut + +== Guarantees Provided + +.Atomicity +. All mutations are atomic within a row. Any put will either wholely succeed or wholely fail.footnoteref[Puts will either wholely succeed or wholely fail, provided that they are actually sent to the RegionServer. If the writebuffer is used, Puts will not be sent until the writebuffer is filled or it is explicitly flushed.] +.. An operation that returns a _success_ code has completely succeeded. +.. An operation that returns a _failure_ code has completely failed. +.. An operation that times out may have succeeded and may have failed. However, it will not have partially succeeded or failed. +. This is true even if the mutation crosses multiple column families within a row. +. APIs that mutate several rows will _not_ be atomic across the multiple rows. For example, a multiput that operates on rows 'a','b', and 'c' may return having mutated some but not all of the rows. In such cases, these APIs will return a list of success codes, each of which may be succeeded, failed, or timed out as described above. +. The checkAndPut API happens atomically like the typical _compareAndSet (CAS)_ operation found in many hardware architectures. +. The order of mutations is seen to happen in a well-defined order for each row, with no interleaving. For example, if one writer issues the mutation `a=1,b=1,c=1` and another writer issues the mutation `a=2,b=2,c=`, the row must either be `a=1,b=1,c=1` or `a=2,b=2,c=2` and must *not* be something like `a=1,b=2,c=1`. + +NOTE:This is not true _across rows_ for multirow batch mutations. + +== Consistency and Isolation +. All rows returned via any access API will consist of a complete row that existed at some point in the table's history. +. This is true across column families - i.e a get of a full row that occurs concurrent with some mutations 1,2,3,4,5 will return a complete row that existed at some point in time between mutation i and i+1 for some i between 1 and 5. +. The state of a row will only move forward through the history of edits to it. + +== Consistency of Scans +A scan is *not* a consistent view of a table. Scans do *not* exhibit _snapshot isolation_. + +Rather, scans have the following properties: +. Any row returned by the scan will be a consistent view (i.e. that version of the complete row existed at some point in time)footnoteref[consistency,A consistent view is not guaranteed intra-row scanning -- i.e. fetching a portion of a row in one RPC then going back to fetch another portion of the row in a subsequent RPC. Intra-row scanning happens when you set a limit on how many values to return per Scan#next (See link:http://hbase.apache.org/apidocs/org/apache/hadoop/hbase/client/Scan.html#setBatch(int)"[Scan#setBatch(int)]).] +. A scan will always reflect a view of the data _at least as new as_ the beginning of the scan. This satisfies the visibility guarantees enumerated below. +.. For example, if client A writes data X and then communicates via a side channel to client B, any scans started by client B will contain data at least as new as X. +.. A scan _must_ reflect all mutations committed prior to the construction of the scanner, and _may_ reflect some mutations committed subsequent to the construction of the scanner. +.. Scans must include _all_ data written prior to the scan (except in the case where data is subsequently mutated, in which case it _may_ reflect the mutation) + +Those familiar with relational databases will recognize this isolation level as "read committed". + +NOTE: The guarantees listed above regarding scanner consistency are referring to "transaction commit time", not the "timestamp" field of each cell. That is to say, a scanner started at time _t_ may see edits with a timestamp value greater than _t_, if those edits were committed with a "forward dated" timestamp before the scanner was constructed. + +== Visibility + +. When a client receives a "success" response for any mutation, that mutation is immediately visible to both that client and any client with whom it later communicates through side channels.footnoteref[consistency] +. A row must never exhibit so-called "time-travel" properties. That is to say, if a series of mutations moves a row sequentially through a series of states, any sequence of concurrent reads will return a subsequence of those states. + +For example, if a row's cells are mutated using the `incrementColumnValue` API, a client must never see the value of any cell decrease. + +This is true regardless of which read API is used to read back the mutation. +. Any version of a cell that has been returned to a read operation is guaranteed to be durably stored. + +== Durability +. All visible data is also durable data. That is to say, a read will never return data that has not been made durable on disk.footnoteref[durability,In the context of Apache HBase, _durably on disk_; implies an `hflush()` call on the transaction log. This does not actually imply an `fsync()` to magnetic media, but rather just that the data has been written to the OS cache on all replicas of the log. In the case of a full datacenter power loss, it is possible that the edits are not truly durable.] +. Any operation that returns a "success" code (eg does not throw an exception) will be made durable.footnoteref[durability] +. Any operation that returns a "failure" code will not be made durable (subject to the Atomicity guarantees above). +. All reasonable failure scenarios will not affect any of the guarantees of this document. + +== Tunability + +All of the above guarantees must be possible within Apache HBase. For users who would like to trade off some guarantees for performance, HBase may offer several tuning options. For example: + +* Visibility may be tuned on a per-read basis to allow stale reads or time travel. +* Durability may be tuned to only flush data to disk on a periodic basis. + +== More Information + +For more information, see the link:book.html#client[client architecture] and link:book.html#datamodel[data model] sections in the Apache HBase Reference Guide. http://git-wip-us.apache.org/repos/asf/hbase/blob/61d70604/src/site/asciidoc/bulk-loads.adoc ---------------------------------------------------------------------- diff --git a/src/site/asciidoc/bulk-loads.adoc b/src/site/asciidoc/bulk-loads.adoc new file mode 100644 index 0000000..8fc9a1a --- /dev/null +++ b/src/site/asciidoc/bulk-loads.adoc @@ -0,0 +1,22 @@ +//// +Licensed to the Apache Software Foundation (ASF) under one +or more contributor license agreements. See the NOTICE file +distributed with this work for additional information +regarding copyright ownership. The ASF licenses this file +to you under the Apache License, Version 2.0 (the +"License"); you may not use this file except in compliance +with the License. You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + +Unless required by applicable law or agreed to in writing, +software distributed under the License is distributed on an +"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY +KIND, either express or implied. See the License for the +specific language governing permissions and limitations +under the License. +//// + += Bulk Loads in Apache HBase (TM) + +This page has been retired. The contents have been moved to the link:book.html#arch.bulk.load[Bulk Loading] section in the Reference Guide.
