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hbase-5253 book.xml - adding chart of object heirarchy in Arch/Regions 

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1234677 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Doug Meil 2012-01-23 03:03:39 +00:00
parent 8f90bbef96
commit 927e1eec6d
1 changed files with 17 additions and 4 deletions
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src/docbkx/book.xml
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@ -1790,9 +1790,18 @@ scan.setFilter(filter);
<section xml:id="regions.arch"> <section xml:id="regions.arch">
<title>Regions</title> <title>Regions</title>
<para>Regions are the basic element of availability and <para>Regions are the basic element of availability and
distribution for tables, and are comprised of a Store per Column Family. distribution for tables, and are comprised of a Store per Column Family. The heirarchy of objects
</para> is as follows:
<programlisting>
<filename>Table</filename> (HBase table)
<filename>Region</filename> (Regions for the table)
<filename>Store</filename> (Store per ColumnFamily for each Region for the table)
<filename>MemStore</filename> (MemStore for each Store for each Region for the table)
<filename>StoreFile</filename> (StoreFiles for each Store for each Region for the table)
<filename>Block</filename> (Blocks within a StoreFile within a Store for each Region for the table)
</programlisting>
</para>
<section xml:id="arch.regions.size"> <section xml:id="arch.regions.size">
<title>Region Size</title> <title>Region Size</title>
@ -1926,6 +1935,8 @@ scan.setFilter(filter);
</section> </section>
<section xml:id="hfile"> <section xml:id="hfile">
<title>StoreFile (HFile)</title> <title>StoreFile (HFile)</title>
<para>StoreFiles are where your data lives.
</para>
<section><title>HFile Format</title> <section><title>HFile Format</title>
<para>The <emphasis>hfile</emphasis> file format is based on <para>The <emphasis>hfile</emphasis> file format is based on
the SSTable file described in the <link xlink:href="http://research.google.com/archive/bigtable.html">BigTable [2006]</link> paper and on the SSTable file described in the <link xlink:href="http://research.google.com/archive/bigtable.html">BigTable [2006]</link> paper and on
@ -1962,7 +1973,9 @@ scan.setFilter(filter);
<title>Blocks</title> <title>Blocks</title>
<para>StoreFiles are composed of blocks. The blocksize is configured on a per-ColumnFamily basis. <para>StoreFiles are composed of blocks. The blocksize is configured on a per-ColumnFamily basis.
</para> </para>
<para>For more information, see the <link xlink:href="http://hbase.apache.org/xref/org/apache/hadoop/hbase/io/hfile/HFileBlock.html">HFileBlock source code</link>. <para>Compression happens at the block level within StoreFiles. For more information on compression, see <xref linkend="compression"/>.
</para>
<para>For more information on blocks, see the <link xlink:href="http://hbase.apache.org/xref/org/apache/hadoop/hbase/io/hfile/HFileBlock.html">HFileBlock source code</link>.
</para> </para>
</section> </section>
<section xml:id="keyvalue"> <section xml:id="keyvalue">