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From mi...@apache.org
Subject [11/51] [partial] hbase-site git commit: Published site at 7dabcf23e8dd53f563981e1e03f82336fc0a44da.
Date Fri, 04 Mar 2016 17:50:55 GMT
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/3e48e84d/devapidocs/src-html/org/apache/hadoop/hbase/io/hfile/CacheConfig.html
----------------------------------------------------------------------
diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/io/hfile/CacheConfig.html b/devapidocs/src-html/org/apache/hadoop/hbase/io/hfile/CacheConfig.html
index ec27cfe..6d8219b 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/io/hfile/CacheConfig.html
+++ b/devapidocs/src-html/org/apache/hadoop/hbase/io/hfile/CacheConfig.html
@@ -90,606 +90,612 @@
 <span class="sourceLineNo">082</span>   */<a name="line.82"></a>
 <span class="sourceLineNo">083</span><a name="line.83"></a>
 <span class="sourceLineNo">084</span>  /**<a name="line.84"></a>
-<span class="sourceLineNo">085</span>   * If the chosen ioengine can persist its state across restarts, the path to the file to<a name="line.85"></a>
-<span class="sourceLineNo">086</span>   * persist to.<a name="line.86"></a>
-<span class="sourceLineNo">087</span>   */<a name="line.87"></a>
-<span class="sourceLineNo">088</span>  public static final String BUCKET_CACHE_PERSISTENT_PATH_KEY = <a name="line.88"></a>
-<span class="sourceLineNo">089</span>      "hbase.bucketcache.persistent.path";<a name="line.89"></a>
-<span class="sourceLineNo">090</span><a name="line.90"></a>
-<span class="sourceLineNo">091</span>  /**<a name="line.91"></a>
-<span class="sourceLineNo">092</span>   * If the bucket cache is used in league with the lru on-heap block cache (meta blocks such<a name="line.92"></a>
-<span class="sourceLineNo">093</span>   * as indices and blooms are kept in the lru blockcache and the data blocks in the<a name="line.93"></a>
-<span class="sourceLineNo">094</span>   * bucket cache).<a name="line.94"></a>
-<span class="sourceLineNo">095</span>   */<a name="line.95"></a>
-<span class="sourceLineNo">096</span>  public static final String BUCKET_CACHE_COMBINED_KEY = <a name="line.96"></a>
-<span class="sourceLineNo">097</span>      "hbase.bucketcache.combinedcache.enabled";<a name="line.97"></a>
-<span class="sourceLineNo">098</span><a name="line.98"></a>
-<span class="sourceLineNo">099</span>  public static final String BUCKET_CACHE_WRITER_THREADS_KEY = "hbase.bucketcache.writer.threads";<a name="line.99"></a>
-<span class="sourceLineNo">100</span>  public static final String BUCKET_CACHE_WRITER_QUEUE_KEY = <a name="line.100"></a>
-<span class="sourceLineNo">101</span>      "hbase.bucketcache.writer.queuelength";<a name="line.101"></a>
-<span class="sourceLineNo">102</span><a name="line.102"></a>
-<span class="sourceLineNo">103</span>  /**<a name="line.103"></a>
-<span class="sourceLineNo">104</span>   * A comma-delimited array of values for use as bucket sizes.<a name="line.104"></a>
-<span class="sourceLineNo">105</span>   */<a name="line.105"></a>
-<span class="sourceLineNo">106</span>  public static final String BUCKET_CACHE_BUCKETS_KEY = "hbase.bucketcache.bucket.sizes";<a name="line.106"></a>
-<span class="sourceLineNo">107</span><a name="line.107"></a>
-<span class="sourceLineNo">108</span>  /**<a name="line.108"></a>
-<span class="sourceLineNo">109</span>   * Defaults for Bucket cache<a name="line.109"></a>
-<span class="sourceLineNo">110</span>   */<a name="line.110"></a>
-<span class="sourceLineNo">111</span>  public static final boolean DEFAULT_BUCKET_CACHE_COMBINED = true;<a name="line.111"></a>
-<span class="sourceLineNo">112</span>  public static final int DEFAULT_BUCKET_CACHE_WRITER_THREADS = 3;<a name="line.112"></a>
-<span class="sourceLineNo">113</span>  public static final int DEFAULT_BUCKET_CACHE_WRITER_QUEUE = 64;<a name="line.113"></a>
-<span class="sourceLineNo">114</span><a name="line.114"></a>
-<span class="sourceLineNo">115</span> /**<a name="line.115"></a>
-<span class="sourceLineNo">116</span>   * Configuration key to prefetch all blocks of a given file into the block cache<a name="line.116"></a>
-<span class="sourceLineNo">117</span>   * when the file is opened.<a name="line.117"></a>
-<span class="sourceLineNo">118</span>   */<a name="line.118"></a>
-<span class="sourceLineNo">119</span>  public static final String PREFETCH_BLOCKS_ON_OPEN_KEY =<a name="line.119"></a>
-<span class="sourceLineNo">120</span>      "hbase.rs.prefetchblocksonopen";<a name="line.120"></a>
-<span class="sourceLineNo">121</span><a name="line.121"></a>
-<span class="sourceLineNo">122</span>  /**<a name="line.122"></a>
-<span class="sourceLineNo">123</span>   * The target block size used by blockcache instances. Defaults to<a name="line.123"></a>
-<span class="sourceLineNo">124</span>   * {@link HConstants#DEFAULT_BLOCKSIZE}.<a name="line.124"></a>
-<span class="sourceLineNo">125</span>   * TODO: this config point is completely wrong, as it's used to determine the<a name="line.125"></a>
-<span class="sourceLineNo">126</span>   * target block size of BlockCache instances. Rename.<a name="line.126"></a>
-<span class="sourceLineNo">127</span>   */<a name="line.127"></a>
-<span class="sourceLineNo">128</span>  public static final String BLOCKCACHE_BLOCKSIZE_KEY = "hbase.offheapcache.minblocksize";<a name="line.128"></a>
-<span class="sourceLineNo">129</span><a name="line.129"></a>
-<span class="sourceLineNo">130</span>  private static final String EXTERNAL_BLOCKCACHE_KEY = "hbase.blockcache.use.external";<a name="line.130"></a>
-<span class="sourceLineNo">131</span>  private static final boolean EXTERNAL_BLOCKCACHE_DEFAULT = false;<a name="line.131"></a>
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-<span class="sourceLineNo">137</span>  /**<a name="line.137"></a>
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-<span class="sourceLineNo">139</span>   * This is used for config.<a name="line.139"></a>
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-<span class="sourceLineNo">143</span>    // TODO(eclark): Consider more. Redis, etc.<a name="line.143"></a>
-<span class="sourceLineNo">144</span>    Class&lt;? extends BlockCache&gt; clazz;<a name="line.144"></a>
-<span class="sourceLineNo">145</span>    ExternalBlockCaches(String clazzName) {<a name="line.145"></a>
-<span class="sourceLineNo">146</span>      try {<a name="line.146"></a>
-<span class="sourceLineNo">147</span>        clazz = (Class&lt;? extends BlockCache&gt;) Class.forName(clazzName);<a name="line.147"></a>
-<span class="sourceLineNo">148</span>      } catch (ClassNotFoundException cnef) {<a name="line.148"></a>
-<span class="sourceLineNo">149</span>        clazz = null;<a name="line.149"></a>
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-<span class="sourceLineNo">152</span>    ExternalBlockCaches(Class&lt;? extends BlockCache&gt; clazz) {<a name="line.152"></a>
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-<span class="sourceLineNo">154</span>    }<a name="line.154"></a>
-<span class="sourceLineNo">155</span>  }<a name="line.155"></a>
-<span class="sourceLineNo">156</span><a name="line.156"></a>
-<span class="sourceLineNo">157</span>  // Defaults<a name="line.157"></a>
-<span class="sourceLineNo">158</span>  public static final boolean DEFAULT_CACHE_DATA_ON_READ = true;<a name="line.158"></a>
-<span class="sourceLineNo">159</span>  public static final boolean DEFAULT_CACHE_DATA_ON_WRITE = false;<a name="line.159"></a>
-<span class="sourceLineNo">160</span>  public static final boolean DEFAULT_IN_MEMORY = false;<a name="line.160"></a>
-<span class="sourceLineNo">161</span>  public static final boolean DEFAULT_CACHE_INDEXES_ON_WRITE = false;<a name="line.161"></a>
-<span class="sourceLineNo">162</span>  public static final boolean DEFAULT_CACHE_BLOOMS_ON_WRITE = false;<a name="line.162"></a>
-<span class="sourceLineNo">163</span>  public static final boolean DEFAULT_EVICT_ON_CLOSE = false;<a name="line.163"></a>
-<span class="sourceLineNo">164</span>  public static final boolean DEFAULT_CACHE_DATA_COMPRESSED = false;<a name="line.164"></a>
-<span class="sourceLineNo">165</span>  public static final boolean DEFAULT_PREFETCH_ON_OPEN = false;<a name="line.165"></a>
-<span class="sourceLineNo">166</span><a name="line.166"></a>
-<span class="sourceLineNo">167</span>  /** Local reference to the block cache, null if completely disabled */<a name="line.167"></a>
-<span class="sourceLineNo">168</span>  private final BlockCache blockCache;<a name="line.168"></a>
-<span class="sourceLineNo">169</span><a name="line.169"></a>
-<span class="sourceLineNo">170</span>  /**<a name="line.170"></a>
-<span class="sourceLineNo">171</span>   * Whether blocks should be cached on read (default is on if there is a<a name="line.171"></a>
-<span class="sourceLineNo">172</span>   * cache but this can be turned off on a per-family or per-request basis).<a name="line.172"></a>
-<span class="sourceLineNo">173</span>   * If off we will STILL cache meta blocks; i.e. INDEX and BLOOM types.<a name="line.173"></a>
-<span class="sourceLineNo">174</span>   * This cannot be disabled.<a name="line.174"></a>
-<span class="sourceLineNo">175</span>   */<a name="line.175"></a>
-<span class="sourceLineNo">176</span>  private boolean cacheDataOnRead;<a name="line.176"></a>
-<span class="sourceLineNo">177</span><a name="line.177"></a>
-<span class="sourceLineNo">178</span>  /** Whether blocks should be flagged as in-memory when being cached */<a name="line.178"></a>
-<span class="sourceLineNo">179</span>  private final boolean inMemory;<a name="line.179"></a>
-<span class="sourceLineNo">180</span><a name="line.180"></a>
-<span class="sourceLineNo">181</span>  /** Whether data blocks should be cached when new files are written */<a name="line.181"></a>
-<span class="sourceLineNo">182</span>  private boolean cacheDataOnWrite;<a name="line.182"></a>
+<span class="sourceLineNo">085</span>   * If the chosen ioengine can persist its state across restarts, the path to the file to persist<a name="line.85"></a>
+<span class="sourceLineNo">086</span>   * to. This file is NOT the data file. It is a file into which we will serialize the map of<a name="line.86"></a>
+<span class="sourceLineNo">087</span>   * what is in the data file. For example, if you pass the following argument as<a name="line.87"></a>
+<span class="sourceLineNo">088</span>   * BUCKET_CACHE_IOENGINE_KEY ("hbase.bucketcache.ioengine"),<a name="line.88"></a>
+<span class="sourceLineNo">089</span>   * &lt;code&gt;file:/tmp/bucketcache.data &lt;/code&gt;, then we will write the bucketcache data to the file<a name="line.89"></a>
+<span class="sourceLineNo">090</span>   * &lt;code&gt;/tmp/bucketcache.data&lt;/code&gt; but the metadata on where the data is in the supplied file<a name="line.90"></a>
+<span class="sourceLineNo">091</span>   * is an in-memory map that needs to be persisted across restarts. Where to store this<a name="line.91"></a>
+<span class="sourceLineNo">092</span>   * in-memory state is what you supply here: e.g. &lt;code&gt;/tmp/bucketcache.map&lt;/code&gt;.<a name="line.92"></a>
+<span class="sourceLineNo">093</span>   */<a name="line.93"></a>
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+<span class="sourceLineNo">095</span>      "hbase.bucketcache.persistent.path";<a name="line.95"></a>
+<span class="sourceLineNo">096</span><a name="line.96"></a>
+<span class="sourceLineNo">097</span>  /**<a name="line.97"></a>
+<span class="sourceLineNo">098</span>   * If the bucket cache is used in league with the lru on-heap block cache (meta blocks such<a name="line.98"></a>
+<span class="sourceLineNo">099</span>   * as indices and blooms are kept in the lru blockcache and the data blocks in the<a name="line.99"></a>
+<span class="sourceLineNo">100</span>   * bucket cache).<a name="line.100"></a>
+<span class="sourceLineNo">101</span>   */<a name="line.101"></a>
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+<span class="sourceLineNo">103</span>      "hbase.bucketcache.combinedcache.enabled";<a name="line.103"></a>
+<span class="sourceLineNo">104</span><a name="line.104"></a>
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+<span class="sourceLineNo">107</span>      "hbase.bucketcache.writer.queuelength";<a name="line.107"></a>
+<span class="sourceLineNo">108</span><a name="line.108"></a>
+<span class="sourceLineNo">109</span>  /**<a name="line.109"></a>
+<span class="sourceLineNo">110</span>   * A comma-delimited array of values for use as bucket sizes.<a name="line.110"></a>
+<span class="sourceLineNo">111</span>   */<a name="line.111"></a>
+<span class="sourceLineNo">112</span>  public static final String BUCKET_CACHE_BUCKETS_KEY = "hbase.bucketcache.bucket.sizes";<a name="line.112"></a>
+<span class="sourceLineNo">113</span><a name="line.113"></a>
+<span class="sourceLineNo">114</span>  /**<a name="line.114"></a>
+<span class="sourceLineNo">115</span>   * Defaults for Bucket cache<a name="line.115"></a>
+<span class="sourceLineNo">116</span>   */<a name="line.116"></a>
+<span class="sourceLineNo">117</span>  public static final boolean DEFAULT_BUCKET_CACHE_COMBINED = true;<a name="line.117"></a>
+<span class="sourceLineNo">118</span>  public static final int DEFAULT_BUCKET_CACHE_WRITER_THREADS = 3;<a name="line.118"></a>
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+<span class="sourceLineNo">120</span><a name="line.120"></a>
+<span class="sourceLineNo">121</span> /**<a name="line.121"></a>
+<span class="sourceLineNo">122</span>   * Configuration key to prefetch all blocks of a given file into the block cache<a name="line.122"></a>
+<span class="sourceLineNo">123</span>   * when the file is opened.<a name="line.123"></a>
+<span class="sourceLineNo">124</span>   */<a name="line.124"></a>
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+<span class="sourceLineNo">127</span><a name="line.127"></a>
+<span class="sourceLineNo">128</span>  /**<a name="line.128"></a>
+<span class="sourceLineNo">129</span>   * The target block size used by blockcache instances. Defaults to<a name="line.129"></a>
+<span class="sourceLineNo">130</span>   * {@link HConstants#DEFAULT_BLOCKSIZE}.<a name="line.130"></a>
+<span class="sourceLineNo">131</span>   * TODO: this config point is completely wrong, as it's used to determine the<a name="line.131"></a>
+<span class="sourceLineNo">132</span>   * target block size of BlockCache instances. Rename.<a name="line.132"></a>
+<span class="sourceLineNo">133</span>   */<a name="line.133"></a>
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+<span class="sourceLineNo">138</span><a name="line.138"></a>
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+<span class="sourceLineNo">142</span><a name="line.142"></a>
+<span class="sourceLineNo">143</span>  /**<a name="line.143"></a>
+<span class="sourceLineNo">144</span>   * Enum of all built in external block caches.<a name="line.144"></a>
+<span class="sourceLineNo">145</span>   * This is used for config.<a name="line.145"></a>
+<span class="sourceLineNo">146</span>   */<a name="line.146"></a>
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+<span class="sourceLineNo">148</span>    memcached("org.apache.hadoop.hbase.io.hfile.MemcachedBlockCache");<a name="line.148"></a>
+<span class="sourceLineNo">149</span>    // TODO(eclark): Consider more. Redis, etc.<a name="line.149"></a>
+<span class="sourceLineNo">150</span>    Class&lt;? extends BlockCache&gt; clazz;<a name="line.150"></a>
+<span class="sourceLineNo">151</span>    ExternalBlockCaches(String clazzName) {<a name="line.151"></a>
+<span class="sourceLineNo">152</span>      try {<a name="line.152"></a>
+<span class="sourceLineNo">153</span>        clazz = (Class&lt;? extends BlockCache&gt;) Class.forName(clazzName);<a name="line.153"></a>
+<span class="sourceLineNo">154</span>      } catch (ClassNotFoundException cnef) {<a name="line.154"></a>
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+<span class="sourceLineNo">158</span>    ExternalBlockCaches(Class&lt;? extends BlockCache&gt; clazz) {<a name="line.158"></a>
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+<span class="sourceLineNo">162</span><a name="line.162"></a>
+<span class="sourceLineNo">163</span>  // Defaults<a name="line.163"></a>
+<span class="sourceLineNo">164</span>  public static final boolean DEFAULT_CACHE_DATA_ON_READ = true;<a name="line.164"></a>
+<span class="sourceLineNo">165</span>  public static final boolean DEFAULT_CACHE_DATA_ON_WRITE = false;<a name="line.165"></a>
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+<span class="sourceLineNo">168</span>  public static final boolean DEFAULT_CACHE_BLOOMS_ON_WRITE = false;<a name="line.168"></a>
+<span class="sourceLineNo">169</span>  public static final boolean DEFAULT_EVICT_ON_CLOSE = false;<a name="line.169"></a>
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+<span class="sourceLineNo">172</span><a name="line.172"></a>
+<span class="sourceLineNo">173</span>  /** Local reference to the block cache, null if completely disabled */<a name="line.173"></a>
+<span class="sourceLineNo">174</span>  private final BlockCache blockCache;<a name="line.174"></a>
+<span class="sourceLineNo">175</span><a name="line.175"></a>
+<span class="sourceLineNo">176</span>  /**<a name="line.176"></a>
+<span class="sourceLineNo">177</span>   * Whether blocks should be cached on read (default is on if there is a<a name="line.177"></a>
+<span class="sourceLineNo">178</span>   * cache but this can be turned off on a per-family or per-request basis).<a name="line.178"></a>
+<span class="sourceLineNo">179</span>   * If off we will STILL cache meta blocks; i.e. INDEX and BLOOM types.<a name="line.179"></a>
+<span class="sourceLineNo">180</span>   * This cannot be disabled.<a name="line.180"></a>
+<span class="sourceLineNo">181</span>   */<a name="line.181"></a>
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 <span class="sourceLineNo">183</span><a name="line.183"></a>
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-<span class="sourceLineNo">185</span>  private final boolean cacheIndexesOnWrite;<a name="line.185"></a>
+<span class="sourceLineNo">184</span>  /** Whether blocks should be flagged as in-memory when being cached */<a name="line.184"></a>
+<span class="sourceLineNo">185</span>  private final boolean inMemory;<a name="line.185"></a>
 <span class="sourceLineNo">186</span><a name="line.186"></a>
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+<span class="sourceLineNo">187</span>  /** Whether data blocks should be cached when new files are written */<a name="line.187"></a>
+<span class="sourceLineNo">188</span>  private boolean cacheDataOnWrite;<a name="line.188"></a>
 <span class="sourceLineNo">189</span><a name="line.189"></a>
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-<span class="sourceLineNo">191</span>  private boolean evictOnClose;<a name="line.191"></a>
+<span class="sourceLineNo">190</span>  /** Whether index blocks should be cached when new files are written */<a name="line.190"></a>
+<span class="sourceLineNo">191</span>  private final boolean cacheIndexesOnWrite;<a name="line.191"></a>
 <span class="sourceLineNo">192</span><a name="line.192"></a>
-<span class="sourceLineNo">193</span>  /** Whether data blocks should be stored in compressed and/or encrypted form in the cache */<a name="line.193"></a>
-<span class="sourceLineNo">194</span>  private final boolean cacheDataCompressed;<a name="line.194"></a>
+<span class="sourceLineNo">193</span>  /** Whether compound bloom filter blocks should be cached on write */<a name="line.193"></a>
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+<span class="sourceLineNo">381</span>   *                         when an HFile is written<a name="line.381"></a>
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+<span class="sourceLineNo">383</span>  @VisibleForTesting<a name="line.383"></a>
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+<span class="sourceLineNo">437</span><a name="line.437"></a>
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+<span class="sourceLineNo">464</span>   * configuration.<a name="line.464"></a>
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-<span class="sourceLineNo">564</span><a name="line.564"></a>
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-<span class="sourceLineNo">592</span>      LOG.info("Crea

<TRUNCATED>

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