http://git-wip-us.apache.org/repos/asf/hbase-site/blob/4f8b8424/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 f32b223..6ac9299 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 @@ -25,671 +25,358 @@ <span class="sourceLineNo">017</span> */<a name="line.17"></a> <span class="sourceLineNo">018</span>package org.apache.hadoop.hbase.io.hfile;<a name="line.18"></a> <span class="sourceLineNo">019</span><a name="line.19"></a> -<span class="sourceLineNo">020</span>import static org.apache.hadoop.hbase.HConstants.BUCKET_CACHE_IOENGINE_KEY;<a name="line.20"></a> -<span class="sourceLineNo">021</span>import static org.apache.hadoop.hbase.HConstants.BUCKET_CACHE_SIZE_KEY;<a name="line.21"></a> -<span class="sourceLineNo">022</span><a name="line.22"></a> -<span class="sourceLineNo">023</span>import java.io.IOException;<a name="line.23"></a> -<span class="sourceLineNo">024</span><a name="line.24"></a> -<span class="sourceLineNo">025</span>import org.apache.hadoop.conf.Configuration;<a name="line.25"></a> -<span class="sourceLineNo">026</span>import org.apache.hadoop.hbase.HConstants;<a name="line.26"></a> -<span class="sourceLineNo">027</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.27"></a> -<span class="sourceLineNo">028</span>import org.slf4j.Logger;<a name="line.28"></a> -<span class="sourceLineNo">029</span>import org.slf4j.LoggerFactory;<a name="line.29"></a> -<span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.client.ColumnFamilyDescriptor;<a name="line.30"></a> -<span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.io.hfile.BlockType.BlockCategory;<a name="line.31"></a> -<span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.io.hfile.bucket.BucketCache;<a name="line.32"></a> -<span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.io.util.MemorySizeUtil;<a name="line.33"></a> -<span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.util.ReflectionUtils;<a name="line.34"></a> -<span class="sourceLineNo">035</span>import org.apache.hadoop.util.StringUtils;<a name="line.35"></a> -<span class="sourceLineNo">036</span><a name="line.36"></a> -<span class="sourceLineNo">037</span>import org.apache.hbase.thirdparty.com.google.common.annotations.VisibleForTesting;<a name="line.37"></a> -<span class="sourceLineNo">038</span><a name="line.38"></a> -<span class="sourceLineNo">039</span><a name="line.39"></a> -<span class="sourceLineNo">040</span>/**<a name="line.40"></a> -<span class="sourceLineNo">041</span> * Stores all of the cache objects and configuration for a single HFile.<a name="line.41"></a> -<span class="sourceLineNo">042</span> */<a name="line.42"></a> -<span class="sourceLineNo">043</span>@InterfaceAudience.Private<a name="line.43"></a> -<span class="sourceLineNo">044</span>public class CacheConfig {<a name="line.44"></a> -<span class="sourceLineNo">045</span> private static final Logger LOG = LoggerFactory.getLogger(CacheConfig.class.getName());<a name="line.45"></a> -<span class="sourceLineNo">046</span><a name="line.46"></a> -<span class="sourceLineNo">047</span><a name="line.47"></a> -<span class="sourceLineNo">048</span> /**<a name="line.48"></a> -<span class="sourceLineNo">049</span> * Disabled cache configuration<a name="line.49"></a> -<span class="sourceLineNo">050</span> */<a name="line.50"></a> -<span class="sourceLineNo">051</span> public static final CacheConfig DISABLED = new CacheConfig();<a name="line.51"></a> -<span class="sourceLineNo">052</span><a name="line.52"></a> -<span class="sourceLineNo">053</span> /**<a name="line.53"></a> -<span class="sourceLineNo">054</span> * Configuration key to cache data blocks on read. Bloom blocks and index blocks are always be<a name="line.54"></a> -<span class="sourceLineNo">055</span> * cached if the block cache is enabled.<a name="line.55"></a> -<span class="sourceLineNo">056</span> */<a name="line.56"></a> -<span class="sourceLineNo">057</span> public static final String CACHE_DATA_ON_READ_KEY = "hbase.block.data.cacheonread";<a name="line.57"></a> -<span class="sourceLineNo">058</span><a name="line.58"></a> -<span class="sourceLineNo">059</span> /**<a name="line.59"></a> -<span class="sourceLineNo">060</span> * Configuration key to cache data blocks on write. There are separate<a name="line.60"></a> -<span class="sourceLineNo">061</span> * switches for bloom blocks and non-root index blocks.<a name="line.61"></a> -<span class="sourceLineNo">062</span> */<a name="line.62"></a> -<span class="sourceLineNo">063</span> public static final String CACHE_BLOCKS_ON_WRITE_KEY =<a name="line.63"></a> -<span class="sourceLineNo">064</span> "hbase.rs.cacheblocksonwrite";<a name="line.64"></a> +<span class="sourceLineNo">020</span>import java.util.Optional;<a name="line.20"></a> +<span class="sourceLineNo">021</span><a name="line.21"></a> +<span class="sourceLineNo">022</span>import org.apache.hadoop.conf.Configuration;<a name="line.22"></a> +<span class="sourceLineNo">023</span>import org.apache.hadoop.hbase.client.ColumnFamilyDescriptor;<a name="line.23"></a> +<span class="sourceLineNo">024</span>import org.apache.hadoop.hbase.io.hfile.BlockType.BlockCategory;<a name="line.24"></a> +<span class="sourceLineNo">025</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.25"></a> +<span class="sourceLineNo">026</span>import org.slf4j.Logger;<a name="line.26"></a> +<span class="sourceLineNo">027</span>import org.slf4j.LoggerFactory;<a name="line.27"></a> +<span class="sourceLineNo">028</span><a name="line.28"></a> +<span class="sourceLineNo">029</span>import org.apache.hbase.thirdparty.com.google.common.annotations.VisibleForTesting;<a name="line.29"></a> +<span class="sourceLineNo">030</span><a name="line.30"></a> +<span class="sourceLineNo">031</span>/**<a name="line.31"></a> +<span class="sourceLineNo">032</span> * Stores all of the cache objects and configuration for a single HFile.<a name="line.32"></a> +<span class="sourceLineNo">033</span> */<a name="line.33"></a> +<span class="sourceLineNo">034</span>@InterfaceAudience.Private<a name="line.34"></a> +<span class="sourceLineNo">035</span>public class CacheConfig {<a name="line.35"></a> +<span class="sourceLineNo">036</span> private static final Logger LOG = LoggerFactory.getLogger(CacheConfig.class.getName());<a name="line.36"></a> +<span class="sourceLineNo">037</span><a name="line.37"></a> +<span class="sourceLineNo">038</span> /**<a name="line.38"></a> +<span class="sourceLineNo">039</span> * Disabled cache configuration<a name="line.39"></a> +<span class="sourceLineNo">040</span> */<a name="line.40"></a> +<span class="sourceLineNo">041</span> public static final CacheConfig DISABLED = new CacheConfig();<a name="line.41"></a> +<span class="sourceLineNo">042</span><a name="line.42"></a> +<span class="sourceLineNo">043</span> /**<a name="line.43"></a> +<span class="sourceLineNo">044</span> * Configuration key to cache data blocks on read. Bloom blocks and index blocks are always be<a name="line.44"></a> +<span class="sourceLineNo">045</span> * cached if the block cache is enabled.<a name="line.45"></a> +<span class="sourceLineNo">046</span> */<a name="line.46"></a> +<span class="sourceLineNo">047</span> public static final String CACHE_DATA_ON_READ_KEY = "hbase.block.data.cacheonread";<a name="line.47"></a> +<span class="sourceLineNo">048</span><a name="line.48"></a> +<span class="sourceLineNo">049</span> /**<a name="line.49"></a> +<span class="sourceLineNo">050</span> * Configuration key to cache data blocks on write. There are separate<a name="line.50"></a> +<span class="sourceLineNo">051</span> * switches for bloom blocks and non-root index blocks.<a name="line.51"></a> +<span class="sourceLineNo">052</span> */<a name="line.52"></a> +<span class="sourceLineNo">053</span> public static final String CACHE_BLOCKS_ON_WRITE_KEY = "hbase.rs.cacheblocksonwrite";<a name="line.53"></a> +<span class="sourceLineNo">054</span><a name="line.54"></a> +<span class="sourceLineNo">055</span> /**<a name="line.55"></a> +<span class="sourceLineNo">056</span> * Configuration key to cache leaf and intermediate-level index blocks on<a name="line.56"></a> +<span class="sourceLineNo">057</span> * write.<a name="line.57"></a> +<span class="sourceLineNo">058</span> */<a name="line.58"></a> +<span class="sourceLineNo">059</span> public static final String CACHE_INDEX_BLOCKS_ON_WRITE_KEY = "hfile.block.index.cacheonwrite";<a name="line.59"></a> +<span class="sourceLineNo">060</span><a name="line.60"></a> +<span class="sourceLineNo">061</span> /**<a name="line.61"></a> +<span class="sourceLineNo">062</span> * Configuration key to cache compound bloom filter blocks on write.<a name="line.62"></a> +<span class="sourceLineNo">063</span> */<a name="line.63"></a> +<span class="sourceLineNo">064</span> public static final String CACHE_BLOOM_BLOCKS_ON_WRITE_KEY = "hfile.block.bloom.cacheonwrite";<a name="line.64"></a> <span class="sourceLineNo">065</span><a name="line.65"></a> <span class="sourceLineNo">066</span> /**<a name="line.66"></a> -<span class="sourceLineNo">067</span> * Configuration key to cache leaf and intermediate-level index blocks on<a name="line.67"></a> -<span class="sourceLineNo">068</span> * write.<a name="line.68"></a> -<span class="sourceLineNo">069</span> */<a name="line.69"></a> -<span class="sourceLineNo">070</span> public static final String CACHE_INDEX_BLOCKS_ON_WRITE_KEY =<a name="line.70"></a> -<span class="sourceLineNo">071</span> "hfile.block.index.cacheonwrite";<a name="line.71"></a> -<span class="sourceLineNo">072</span><a name="line.72"></a> -<span class="sourceLineNo">073</span> /**<a name="line.73"></a> -<span class="sourceLineNo">074</span> * Configuration key to cache compound bloom filter blocks on write.<a name="line.74"></a> -<span class="sourceLineNo">075</span> */<a name="line.75"></a> -<span class="sourceLineNo">076</span> public static final String CACHE_BLOOM_BLOCKS_ON_WRITE_KEY =<a name="line.76"></a> -<span class="sourceLineNo">077</span> "hfile.block.bloom.cacheonwrite";<a name="line.77"></a> -<span class="sourceLineNo">078</span><a name="line.78"></a> -<span class="sourceLineNo">079</span> /**<a name="line.79"></a> -<span class="sourceLineNo">080</span> * Configuration key to cache data blocks in compressed and/or encrypted format.<a name="line.80"></a> -<span class="sourceLineNo">081</span> */<a name="line.81"></a> -<span class="sourceLineNo">082</span> public static final String CACHE_DATA_BLOCKS_COMPRESSED_KEY =<a name="line.82"></a> -<span class="sourceLineNo">083</span> "hbase.block.data.cachecompressed";<a name="line.83"></a> -<span class="sourceLineNo">084</span><a name="line.84"></a> -<span class="sourceLineNo">085</span> /**<a name="line.85"></a> -<span class="sourceLineNo">086</span> * Configuration key to evict all blocks of a given file from the block cache<a name="line.86"></a> -<span class="sourceLineNo">087</span> * when the file is closed.<a name="line.87"></a> -<span class="sourceLineNo">088</span> */<a name="line.88"></a> -<span class="sourceLineNo">089</span> public static final String EVICT_BLOCKS_ON_CLOSE_KEY =<a name="line.89"></a> -<span class="sourceLineNo">090</span> "hbase.rs.evictblocksonclose";<a name="line.90"></a> -<span class="sourceLineNo">091</span><a name="line.91"></a> -<span class="sourceLineNo">092</span> /**<a name="line.92"></a> -<span class="sourceLineNo">093</span> * Configuration keys for Bucket cache<a name="line.93"></a> -<span class="sourceLineNo">094</span> */<a name="line.94"></a> -<span class="sourceLineNo">095</span><a name="line.95"></a> -<span class="sourceLineNo">096</span> /**<a name="line.96"></a> -<span class="sourceLineNo">097</span> * If the chosen ioengine can persist its state across restarts, the path to the file to persist<a name="line.97"></a> -<span class="sourceLineNo">098</span> * to. This file is NOT the data file. It is a file into which we will serialize the map of<a name="line.98"></a> -<span class="sourceLineNo">099</span> * what is in the data file. For example, if you pass the following argument as<a name="line.99"></a> -<span class="sourceLineNo">100</span> * BUCKET_CACHE_IOENGINE_KEY ("hbase.bucketcache.ioengine"),<a name="line.100"></a> -<span class="sourceLineNo">101</span> * <code>file:/tmp/bucketcache.data </code>, then we will write the bucketcache data to the file<a name="line.101"></a> -<span class="sourceLineNo">102</span> * <code>/tmp/bucketcache.data</code> but the metadata on where the data is in the supplied file<a name="line.102"></a> -<span class="sourceLineNo">103</span> * is an in-memory map that needs to be persisted across restarts. Where to store this<a name="line.103"></a> -<span class="sourceLineNo">104</span> * in-memory state is what you supply here: e.g. <code>/tmp/bucketcache.map</code>.<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_PERSISTENT_PATH_KEY =<a name="line.106"></a> -<span class="sourceLineNo">107</span> "hbase.bucketcache.persistent.path";<a name="line.107"></a> -<span class="sourceLineNo">108</span><a name="line.108"></a> -<span class="sourceLineNo">109</span> public static final String BUCKET_CACHE_WRITER_THREADS_KEY = "hbase.bucketcache.writer.threads";<a name="line.109"></a> -<span class="sourceLineNo">110</span> public static final String BUCKET_CACHE_WRITER_QUEUE_KEY =<a name="line.110"></a> -<span class="sourceLineNo">111</span> "hbase.bucketcache.writer.queuelength";<a name="line.111"></a> -<span class="sourceLineNo">112</span><a name="line.112"></a> -<span class="sourceLineNo">113</span> /**<a name="line.113"></a> -<span class="sourceLineNo">114</span> * A comma-delimited array of values for use as bucket sizes.<a name="line.114"></a> -<span class="sourceLineNo">115</span> */<a name="line.115"></a> -<span class="sourceLineNo">116</span> public static final String BUCKET_CACHE_BUCKETS_KEY = "hbase.bucketcache.bucket.sizes";<a name="line.116"></a> -<span class="sourceLineNo">117</span><a name="line.117"></a> -<span class="sourceLineNo">118</span> /**<a name="line.118"></a> -<span class="sourceLineNo">119</span> * Defaults for Bucket cache<a name="line.119"></a> -<span class="sourceLineNo">120</span> */<a name="line.120"></a> -<span class="sourceLineNo">121</span> public static final int DEFAULT_BUCKET_CACHE_WRITER_THREADS = 3;<a name="line.121"></a> -<span class="sourceLineNo">122</span> public static final int DEFAULT_BUCKET_CACHE_WRITER_QUEUE = 64;<a name="line.122"></a> -<span class="sourceLineNo">123</span><a name="line.123"></a> -<span class="sourceLineNo">124</span> /**<a name="line.124"></a> -<span class="sourceLineNo">125</span> * Configuration key to prefetch all blocks of a given file into the block cache<a name="line.125"></a> -<span class="sourceLineNo">126</span> * when the file is opened.<a name="line.126"></a> -<span class="sourceLineNo">127</span> */<a name="line.127"></a> -<span class="sourceLineNo">128</span> public static final String PREFETCH_BLOCKS_ON_OPEN_KEY =<a name="line.128"></a> -<span class="sourceLineNo">129</span> "hbase.rs.prefetchblocksonopen";<a name="line.129"></a> +<span class="sourceLineNo">067</span> * Configuration key to cache data blocks in compressed and/or encrypted format.<a name="line.67"></a> +<span class="sourceLineNo">068</span> */<a name="line.68"></a> +<span class="sourceLineNo">069</span> public static final String CACHE_DATA_BLOCKS_COMPRESSED_KEY = "hbase.block.data.cachecompressed";<a name="line.69"></a> +<span class="sourceLineNo">070</span><a name="line.70"></a> +<span class="sourceLineNo">071</span> /**<a name="line.71"></a> +<span class="sourceLineNo">072</span> * Configuration key to evict all blocks of a given file from the block cache<a name="line.72"></a> +<span class="sourceLineNo">073</span> * when the file is closed.<a name="line.73"></a> +<span class="sourceLineNo">074</span> */<a name="line.74"></a> +<span class="sourceLineNo">075</span> public static final String EVICT_BLOCKS_ON_CLOSE_KEY = "hbase.rs.evictblocksonclose";<a name="line.75"></a> +<span class="sourceLineNo">076</span><a name="line.76"></a> +<span class="sourceLineNo">077</span> /**<a name="line.77"></a> +<span class="sourceLineNo">078</span> * Configuration key to prefetch all blocks of a given file into the block cache<a name="line.78"></a> +<span class="sourceLineNo">079</span> * when the file is opened.<a name="line.79"></a> +<span class="sourceLineNo">080</span> */<a name="line.80"></a> +<span class="sourceLineNo">081</span> public static final String PREFETCH_BLOCKS_ON_OPEN_KEY = "hbase.rs.prefetchblocksonopen";<a name="line.81"></a> +<span class="sourceLineNo">082</span><a name="line.82"></a> +<span class="sourceLineNo">083</span> public static final String DROP_BEHIND_CACHE_COMPACTION_KEY =<a name="line.83"></a> +<span class="sourceLineNo">084</span> "hbase.hfile.drop.behind.compaction";<a name="line.84"></a> +<span class="sourceLineNo">085</span><a name="line.85"></a> +<span class="sourceLineNo">086</span> // Defaults<a name="line.86"></a> +<span class="sourceLineNo">087</span> public static final boolean DEFAULT_CACHE_DATA_ON_READ = true;<a name="line.87"></a> +<span class="sourceLineNo">088</span> public static final boolean DEFAULT_CACHE_DATA_ON_WRITE = false;<a name="line.88"></a> +<span class="sourceLineNo">089</span> public static final boolean DEFAULT_IN_MEMORY = false;<a name="line.89"></a> +<span class="sourceLineNo">090</span> public static final boolean DEFAULT_CACHE_INDEXES_ON_WRITE = false;<a name="line.90"></a> +<span class="sourceLineNo">091</span> public static final boolean DEFAULT_CACHE_BLOOMS_ON_WRITE = false;<a name="line.91"></a> +<span class="sourceLineNo">092</span> public static final boolean DEFAULT_EVICT_ON_CLOSE = false;<a name="line.92"></a> +<span class="sourceLineNo">093</span> public static final boolean DEFAULT_CACHE_DATA_COMPRESSED = false;<a name="line.93"></a> +<span class="sourceLineNo">094</span> public static final boolean DEFAULT_PREFETCH_ON_OPEN = false;<a name="line.94"></a> +<span class="sourceLineNo">095</span> public static final boolean DROP_BEHIND_CACHE_COMPACTION_DEFAULT = true;<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> * Whether blocks should be cached on read (default is on if there is a<a name="line.98"></a> +<span class="sourceLineNo">099</span> * cache but this can be turned off on a per-family or per-request basis).<a name="line.99"></a> +<span class="sourceLineNo">100</span> * If off we will STILL cache meta blocks; i.e. INDEX and BLOOM types.<a name="line.100"></a> +<span class="sourceLineNo">101</span> * This cannot be disabled.<a name="line.101"></a> +<span class="sourceLineNo">102</span> */<a name="line.102"></a> +<span class="sourceLineNo">103</span> private final boolean cacheDataOnRead;<a name="line.103"></a> +<span class="sourceLineNo">104</span><a name="line.104"></a> +<span class="sourceLineNo">105</span> /** Whether blocks should be flagged as in-memory when being cached */<a name="line.105"></a> +<span class="sourceLineNo">106</span> private final boolean inMemory;<a name="line.106"></a> +<span class="sourceLineNo">107</span><a name="line.107"></a> +<span class="sourceLineNo">108</span> /** Whether data blocks should be cached when new files are written */<a name="line.108"></a> +<span class="sourceLineNo">109</span> private boolean cacheDataOnWrite;<a name="line.109"></a> +<span class="sourceLineNo">110</span><a name="line.110"></a> +<span class="sourceLineNo">111</span> /** Whether index blocks should be cached when new files are written */<a name="line.111"></a> +<span class="sourceLineNo">112</span> private final boolean cacheIndexesOnWrite;<a name="line.112"></a> +<span class="sourceLineNo">113</span><a name="line.113"></a> +<span class="sourceLineNo">114</span> /** Whether compound bloom filter blocks should be cached on write */<a name="line.114"></a> +<span class="sourceLineNo">115</span> private final boolean cacheBloomsOnWrite;<a name="line.115"></a> +<span class="sourceLineNo">116</span><a name="line.116"></a> +<span class="sourceLineNo">117</span> /** Whether blocks of a file should be evicted when the file is closed */<a name="line.117"></a> +<span class="sourceLineNo">118</span> private boolean evictOnClose;<a name="line.118"></a> +<span class="sourceLineNo">119</span><a name="line.119"></a> +<span class="sourceLineNo">120</span> /** Whether data blocks should be stored in compressed and/or encrypted form in the cache */<a name="line.120"></a> +<span class="sourceLineNo">121</span> private final boolean cacheDataCompressed;<a name="line.121"></a> +<span class="sourceLineNo">122</span><a name="line.122"></a> +<span class="sourceLineNo">123</span> /** Whether data blocks should be prefetched into the cache */<a name="line.123"></a> +<span class="sourceLineNo">124</span> private final boolean prefetchOnOpen;<a name="line.124"></a> +<span class="sourceLineNo">125</span><a name="line.125"></a> +<span class="sourceLineNo">126</span> private final boolean dropBehindCompaction;<a name="line.126"></a> +<span class="sourceLineNo">127</span><a name="line.127"></a> +<span class="sourceLineNo">128</span> // Local reference to the block cache<a name="line.128"></a> +<span class="sourceLineNo">129</span> private final BlockCache blockCache;<a name="line.129"></a> <span class="sourceLineNo">130</span><a name="line.130"></a> <span class="sourceLineNo">131</span> /**<a name="line.131"></a> -<span class="sourceLineNo">132</span> * The target block size used by blockcache instances. Defaults to<a name="line.132"></a> -<span class="sourceLineNo">133</span> * {@link HConstants#DEFAULT_BLOCKSIZE}.<a name="line.133"></a> -<span class="sourceLineNo">134</span> * TODO: this config point is completely wrong, as it's used to determine the<a name="line.134"></a> -<span class="sourceLineNo">135</span> * target block size of BlockCache instances. Rename.<a name="line.135"></a> -<span class="sourceLineNo">136</span> */<a name="line.136"></a> -<span class="sourceLineNo">137</span> public static final String BLOCKCACHE_BLOCKSIZE_KEY = "hbase.offheapcache.minblocksize";<a name="line.137"></a> -<span class="sourceLineNo">138</span><a name="line.138"></a> -<span class="sourceLineNo">139</span> private static final String EXTERNAL_BLOCKCACHE_KEY = "hbase.blockcache.use.external";<a name="line.139"></a> -<span class="sourceLineNo">140</span> private static final boolean EXTERNAL_BLOCKCACHE_DEFAULT = false;<a name="line.140"></a> -<span class="sourceLineNo">141</span><a name="line.141"></a> -<span class="sourceLineNo">142</span> private static final String EXTERNAL_BLOCKCACHE_CLASS_KEY = "hbase.blockcache.external.class";<a name="line.142"></a> -<span class="sourceLineNo">143</span> private static final String DROP_BEHIND_CACHE_COMPACTION_KEY =<a name="line.143"></a> -<span class="sourceLineNo">144</span> "hbase.hfile.drop.behind.compaction";<a name="line.144"></a> -<span class="sourceLineNo">145</span> private static final boolean DROP_BEHIND_CACHE_COMPACTION_DEFAULT = true;<a name="line.145"></a> -<span class="sourceLineNo">146</span><a name="line.146"></a> -<span class="sourceLineNo">147</span> /**<a name="line.147"></a> -<span class="sourceLineNo">148</span> * Enum of all built in external block caches.<a name="line.148"></a> -<span class="sourceLineNo">149</span> * This is used for config.<a name="line.149"></a> -<span class="sourceLineNo">150</span> */<a name="line.150"></a> -<span class="sourceLineNo">151</span> private static enum ExternalBlockCaches {<a name="line.151"></a> -<span class="sourceLineNo">152</span> memcached("org.apache.hadoop.hbase.io.hfile.MemcachedBlockCache");<a name="line.152"></a> -<span class="sourceLineNo">153</span> // TODO(eclark): Consider more. Redis, etc.<a name="line.153"></a> -<span class="sourceLineNo">154</span> Class<? extends BlockCache> clazz;<a name="line.154"></a> -<span class="sourceLineNo">155</span> ExternalBlockCaches(String clazzName) {<a name="line.155"></a> -<span class="sourceLineNo">156</span> try {<a name="line.156"></a> -<span class="sourceLineNo">157</span> clazz = (Class<? extends BlockCache>) Class.forName(clazzName);<a name="line.157"></a> -<span class="sourceLineNo">158</span> } catch (ClassNotFoundException cnef) {<a name="line.158"></a> -<span class="sourceLineNo">159</span> clazz = null;<a name="line.159"></a> -<span class="sourceLineNo">160</span> }<a name="line.160"></a> -<span class="sourceLineNo">161</span> }<a name="line.161"></a> -<span class="sourceLineNo">162</span> ExternalBlockCaches(Class<? extends BlockCache> clazz) {<a name="line.162"></a> -<span class="sourceLineNo">163</span> this.clazz = clazz;<a name="line.163"></a> -<span class="sourceLineNo">164</span> }<a name="line.164"></a> -<span class="sourceLineNo">165</span> }<a name="line.165"></a> -<span class="sourceLineNo">166</span><a name="line.166"></a> -<span class="sourceLineNo">167</span> // Defaults<a name="line.167"></a> -<span class="sourceLineNo">168</span> public static final boolean DEFAULT_CACHE_DATA_ON_READ = true;<a name="line.168"></a> -<span class="sourceLineNo">169</span> public static final boolean DEFAULT_CACHE_DATA_ON_WRITE = false;<a name="line.169"></a> -<span class="sourceLineNo">170</span> public static final boolean DEFAULT_IN_MEMORY = false;<a name="line.170"></a> -<span class="sourceLineNo">171</span> public static final boolean DEFAULT_CACHE_INDEXES_ON_WRITE = false;<a name="line.171"></a> -<span class="sourceLineNo">172</span> public static final boolean DEFAULT_CACHE_BLOOMS_ON_WRITE = false;<a name="line.172"></a> -<span class="sourceLineNo">173</span> public static final boolean DEFAULT_EVICT_ON_CLOSE = false;<a name="line.173"></a> -<span class="sourceLineNo">174</span> public static final boolean DEFAULT_CACHE_DATA_COMPRESSED = false;<a name="line.174"></a> -<span class="sourceLineNo">175</span> public static final boolean DEFAULT_PREFETCH_ON_OPEN = false;<a name="line.175"></a> -<span class="sourceLineNo">176</span><a name="line.176"></a> -<span class="sourceLineNo">177</span> /** Local reference to the block cache, null if completely disabled */<a name="line.177"></a> -<span class="sourceLineNo">178</span> private final BlockCache blockCache;<a name="line.178"></a> -<span class="sourceLineNo">179</span><a name="line.179"></a> -<span class="sourceLineNo">180</span> /**<a name="line.180"></a> -<span class="sourceLineNo">181</span> * Whether blocks should be cached on read (default is on if there is a<a name="line.181"></a> -<span class="sourceLineNo">182</span> * cache but this can be turned off on a per-family or per-request basis).<a name="line.182"></a> -<span class="sourceLineNo">183</span> * If off we will STILL cache meta blocks; i.e. INDEX and BLOOM types.<a name="line.183"></a> -<span class="sourceLineNo">184</span> * This cannot be disabled.<a name="line.184"></a> -<span class="sourceLineNo">185</span> */<a name="line.185"></a> -<span class="sourceLineNo">186</span> private boolean cacheDataOnRead;<a name="line.186"></a> -<span class="sourceLineNo">187</span><a name="line.187"></a> -<span class="sourceLineNo">188</span> /** Whether blocks should be flagged as in-memory when being cached */<a name="line.188"></a> -<span class="sourceLineNo">189</span> private final boolean inMemory;<a name="line.189"></a> -<span class="sourceLineNo">190</span><a name="line.190"></a> -<span class="sourceLineNo">191</span> /** Whether data blocks should be cached when new files are written */<a name="line.191"></a> -<span class="sourceLineNo">192</span> private boolean cacheDataOnWrite;<a name="line.192"></a> -<span class="sourceLineNo">193</span><a name="line.193"></a> -<span class="sourceLineNo">194</span> /** Whether index blocks should be cached when new files are written */<a name="line.194"></a> -<span class="sourceLineNo">195</span> private final boolean cacheIndexesOnWrite;<a name="line.195"></a> -<span class="sourceLineNo">196</span><a name="line.196"></a> -<span class="sourceLineNo">197</span> /** Whether compound bloom filter blocks should be cached on write */<a name="line.197"></a> -<span class="sourceLineNo">198</span> private final boolean cacheBloomsOnWrite;<a name="line.198"></a> -<span class="sourceLineNo">199</span><a name="line.199"></a> -<span class="sourceLineNo">200</span> /** Whether blocks of a file should be evicted when the file is closed */<a name="line.200"></a> -<span class="sourceLineNo">201</span> private boolean evictOnClose;<a name="line.201"></a> -<span class="sourceLineNo">202</span><a name="line.202"></a> -<span class="sourceLineNo">203</span> /** Whether data blocks should be stored in compressed and/or encrypted form in the cache */<a name="line.203"></a> -<span class="sourceLineNo">204</span> private final boolean cacheDataCompressed;<a name="line.204"></a> -<span class="sourceLineNo">205</span><a name="line.205"></a> -<span class="sourceLineNo">206</span> /** Whether data blocks should be prefetched into the cache */<a name="line.206"></a> -<span class="sourceLineNo">207</span> private final boolean prefetchOnOpen;<a name="line.207"></a> -<span class="sourceLineNo">208</span><a name="line.208"></a> -<span class="sourceLineNo">209</span> private final boolean dropBehindCompaction;<a name="line.209"></a> -<span class="sourceLineNo">210</span><a name="line.210"></a> -<span class="sourceLineNo">211</span> /**<a name="line.211"></a> -<span class="sourceLineNo">212</span> * Create a cache configuration using the specified configuration object and<a name="line.212"></a> -<span class="sourceLineNo">213</span> * family descriptor.<a name="line.213"></a> -<span class="sourceLineNo">214</span> * @param conf hbase configuration<a name="line.214"></a> -<span class="sourceLineNo">215</span> * @param family column family configuration<a name="line.215"></a> -<span class="sourceLineNo">216</span> */<a name="line.216"></a> -<span class="sourceLineNo">217</span> public CacheConfig(Configuration conf, ColumnFamilyDescriptor family) {<a name="line.217"></a> -<span class="sourceLineNo">218</span> this(GLOBAL_BLOCK_CACHE_INSTANCE,<a name="line.218"></a> -<span class="sourceLineNo">219</span> conf.getBoolean(CACHE_DATA_ON_READ_KEY, DEFAULT_CACHE_DATA_ON_READ)<a name="line.219"></a> -<span class="sourceLineNo">220</span> && family.isBlockCacheEnabled(),<a name="line.220"></a> -<span class="sourceLineNo">221</span> family.isInMemory(),<a name="line.221"></a> -<span class="sourceLineNo">222</span> // For the following flags we enable them regardless of per-schema settings<a name="line.222"></a> -<span class="sourceLineNo">223</span> // if they are enabled in the global configuration.<a name="line.223"></a> -<span class="sourceLineNo">224</span> conf.getBoolean(CACHE_BLOCKS_ON_WRITE_KEY,<a name="line.224"></a> -<span class="sourceLineNo">225</span> DEFAULT_CACHE_DATA_ON_WRITE) || family.isCacheDataOnWrite(),<a name="line.225"></a> -<span class="sourceLineNo">226</span> conf.getBoolean(CACHE_INDEX_BLOCKS_ON_WRITE_KEY,<a name="line.226"></a> -<span class="sourceLineNo">227</span> DEFAULT_CACHE_INDEXES_ON_WRITE) || family.isCacheIndexesOnWrite(),<a name="line.227"></a> -<span class="sourceLineNo">228</span> conf.getBoolean(CACHE_BLOOM_BLOCKS_ON_WRITE_KEY,<a name="line.228"></a> -<span class="sourceLineNo">229</span> DEFAULT_CACHE_BLOOMS_ON_WRITE) || family.isCacheBloomsOnWrite(),<a name="line.229"></a> -<span class="sourceLineNo">230</span> conf.getBoolean(EVICT_BLOCKS_ON_CLOSE_KEY,<a name="line.230"></a> -<span class="sourceLineNo">231</span> DEFAULT_EVICT_ON_CLOSE) || family.isEvictBlocksOnClose(),<a name="line.231"></a> -<span class="sourceLineNo">232</span> conf.getBoolean(CACHE_DATA_BLOCKS_COMPRESSED_KEY, DEFAULT_CACHE_DATA_COMPRESSED),<a name="line.232"></a> -<span class="sourceLineNo">233</span> conf.getBoolean(PREFETCH_BLOCKS_ON_OPEN_KEY,<a name="line.233"></a> -<span class="sourceLineNo">234</span> DEFAULT_PREFETCH_ON_OPEN) || family.isPrefetchBlocksOnOpen(),<a name="line.234"></a> -<span class="sourceLineNo">235</span> conf.getBoolean(DROP_BEHIND_CACHE_COMPACTION_KEY, DROP_BEHIND_CACHE_COMPACTION_DEFAULT)<a name="line.235"></a> -<span class="sourceLineNo">236</span> );<a name="line.236"></a> -<span class="sourceLineNo">237</span> LOG.info("Created cacheConfig for " + family.getNameAsString() + ": " + this);<a name="line.237"></a> -<span class="sourceLineNo">238</span> }<a name="line.238"></a> -<span class="sourceLineNo">239</span><a name="line.239"></a> -<span class="sourceLineNo">240</span> /**<a name="line.240"></a> -<span class="sourceLineNo">241</span> * Create a cache configuration using the specified configuration object and<a name="line.241"></a> -<span class="sourceLineNo">242</span> * defaults for family level settings. Only use if no column family context. Prefer<a name="line.242"></a> -<span class="sourceLineNo">243</span> * {@link CacheConfig#CacheConfig(Configuration, ColumnFamilyDescriptor)}<a name="line.243"></a> -<span class="sourceLineNo">244</span> * @see #CacheConfig(Configuration, ColumnFamilyDescriptor)<a name="line.244"></a> -<span class="sourceLineNo">245</span> * @param conf hbase configuration<a name="line.245"></a> -<span class="sourceLineNo">246</span> */<a name="line.246"></a> -<span class="sourceLineNo">247</span> public CacheConfig(Configuration conf) {<a name="line.247"></a> -<span class="sourceLineNo">248</span> this(GLOBAL_BLOCK_CACHE_INSTANCE,<a name="line.248"></a> -<span class="sourceLineNo">249</span> conf.getBoolean(CACHE_DATA_ON_READ_KEY, DEFAULT_CACHE_DATA_ON_READ),<a name="line.249"></a> -<span class="sourceLineNo">250</span> DEFAULT_IN_MEMORY, // This is a family-level setting so can't be set<a name="line.250"></a> -<span class="sourceLineNo">251</span> // strictly from conf<a name="line.251"></a> -<span class="sourceLineNo">252</span> conf.getBoolean(CACHE_BLOCKS_ON_WRITE_KEY, DEFAULT_CACHE_DATA_ON_WRITE),<a name="line.252"></a> -<span class="sourceLineNo">253</span> conf.getBoolean(CACHE_INDEX_BLOCKS_ON_WRITE_KEY, DEFAULT_CACHE_INDEXES_ON_WRITE),<a name="line.253"></a> -<span class="sourceLineNo">254</span> conf.getBoolean(CACHE_BLOOM_BLOCKS_ON_WRITE_KEY, DEFAULT_CACHE_BLOOMS_ON_WRITE),<a name="line.254"></a> -<span class="sourceLineNo">255</span> conf.getBoolean(EVICT_BLOCKS_ON_CLOSE_KEY, DEFAULT_EVICT_ON_CLOSE),<a name="line.255"></a> -<span class="sourceLineNo">256</span> conf.getBoolean(CACHE_DATA_BLOCKS_COMPRESSED_KEY, DEFAULT_CACHE_DATA_COMPRESSED),<a name="line.256"></a> -<span class="sourceLineNo">257</span> conf.getBoolean(PREFETCH_BLOCKS_ON_OPEN_KEY, DEFAULT_PREFETCH_ON_OPEN),<a name="line.257"></a> -<span class="sourceLineNo">258</span> conf.getBoolean(DROP_BEHIND_CACHE_COMPACTION_KEY, DROP_BEHIND_CACHE_COMPACTION_DEFAULT));<a name="line.258"></a> -<span class="sourceLineNo">259</span> LOG.info("Created cacheConfig: " + this);<a name="line.259"></a> -<span class="sourceLineNo">260</span> }<a name="line.260"></a> -<span class="sourceLineNo">261</span><a name="line.261"></a> -<span class="sourceLineNo">262</span> /**<a name="line.262"></a> -<span class="sourceLineNo">263</span> * Create a block cache configuration with the specified cache and configuration parameters.<a name="line.263"></a> -<span class="sourceLineNo">264</span> * @param blockCache reference to block cache, null if completely disabled<a name="line.264"></a> -<span class="sourceLineNo">265</span> * @param cacheDataOnRead whether DATA blocks should be cached on read (we always cache INDEX<a name="line.265"></a> -<span class="sourceLineNo">266</span> * blocks and BLOOM blocks; this cannot be disabled).<a name="line.266"></a> -<span class="sourceLineNo">267</span> * @param inMemory whether blocks should be flagged as in-memory<a name="line.267"></a> -<span class="sourceLineNo">268</span> * @param cacheDataOnWrite whether data blocks should be cached on write<a name="line.268"></a> -<span class="sourceLineNo">269</span> * @param cacheIndexesOnWrite whether index blocks should be cached on write<a name="line.269"></a> -<span class="sourceLineNo">270</span> * @param cacheBloomsOnWrite whether blooms should be cached on write<a name="line.270"></a> -<span class="sourceLineNo">271</span> * @param evictOnClose whether blocks should be evicted when HFile is closed<a name="line.271"></a> -<span class="sourceLineNo">272</span> * @param cacheDataCompressed whether to store blocks as compressed in the cache<a name="line.272"></a> -<span class="sourceLineNo">273</span> * @param prefetchOnOpen whether to prefetch blocks upon open<a name="line.273"></a> -<span class="sourceLineNo">274</span> * @param dropBehindCompaction indicate that we should set drop behind to true when open a store<a name="line.274"></a> -<span class="sourceLineNo">275</span> * file reader for compaction<a name="line.275"></a> -<span class="sourceLineNo">276</span> */<a name="line.276"></a> -<span class="sourceLineNo">277</span> @VisibleForTesting<a name="line.277"></a> -<span class="sourceLineNo">278</span> CacheConfig(final BlockCache blockCache,<a name="line.278"></a> -<span class="sourceLineNo">279</span> final boolean cacheDataOnRead, final boolean inMemory,<a name="line.279"></a> -<span class="sourceLineNo">280</span> final boolean cacheDataOnWrite, final boolean cacheIndexesOnWrite,<a name="line.280"></a> -<span class="sourceLineNo">281</span> final boolean cacheBloomsOnWrite, final boolean evictOnClose,<a name="line.281"></a> -<span class="sourceLineNo">282</span> final boolean cacheDataCompressed, final boolean prefetchOnOpen,<a name="line.282"></a> -<span class="sourceLineNo">283</span> final boolean dropBehindCompaction) {<a name="line.283"></a> -<span class="sourceLineNo">284</span> this.blockCache = blockCache;<a name="line.284"></a> -<span class="sourceLineNo">285</span> this.cacheDataOnRead = cacheDataOnRead;<a name="line.285"></a> -<span class="sourceLineNo">286</span> this.inMemory = inMemory;<a name="line.286"></a> -<span class="sourceLineNo">287</span> this.cacheDataOnWrite = cacheDataOnWrite;<a name="line.287"></a> -<span class="sourceLineNo">288</span> this.cacheIndexesOnWrite = cacheIndexesOnWrite;<a name="line.288"></a> -<span class="sourceLineNo">289</span> this.cacheBloomsOnWrite = cacheBloomsOnWrite;<a name="line.289"></a> -<span class="sourceLineNo">290</span> this.evictOnClose = evictOnClose;<a name="line.290"></a> -<span class="sourceLineNo">291</span> this.cacheDataCompressed = cacheDataCompressed;<a name="line.291"></a> -<span class="sourceLineNo">292</span> this.prefetchOnOpen = prefetchOnOpen;<a name="line.292"></a> -<span class="sourceLineNo">293</span> this.dropBehindCompaction = dropBehindCompaction;<a name="line.293"></a> +<span class="sourceLineNo">132</span> * Create a cache configuration using the specified configuration object and<a name="line.132"></a> +<span class="sourceLineNo">133</span> * defaults for family level settings. Only use if no column family context.<a name="line.133"></a> +<span class="sourceLineNo">134</span> * @param conf hbase configuration<a name="line.134"></a> +<span class="sourceLineNo">135</span> */<a name="line.135"></a> +<span class="sourceLineNo">136</span> public CacheConfig(Configuration conf) {<a name="line.136"></a> +<span class="sourceLineNo">137</span> this(conf, null);<a name="line.137"></a> +<span class="sourceLineNo">138</span> }<a name="line.138"></a> +<span class="sourceLineNo">139</span><a name="line.139"></a> +<span class="sourceLineNo">140</span> public CacheConfig(Configuration conf, BlockCache blockCache) {<a name="line.140"></a> +<span class="sourceLineNo">141</span> this(conf, null, blockCache);<a name="line.141"></a> +<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> /**<a name="line.144"></a> +<span class="sourceLineNo">145</span> * Create a cache configuration using the specified configuration object and<a name="line.145"></a> +<span class="sourceLineNo">146</span> * family descriptor.<a name="line.146"></a> +<span class="sourceLineNo">147</span> * @param conf hbase configuration<a name="line.147"></a> +<span class="sourceLineNo">148</span> * @param family column family configuration<a name="line.148"></a> +<span class="sourceLineNo">149</span> */<a name="line.149"></a> +<span class="sourceLineNo">150</span> public CacheConfig(Configuration conf, ColumnFamilyDescriptor family, BlockCache blockCache) {<a name="line.150"></a> +<span class="sourceLineNo">151</span> this.cacheDataOnRead = conf.getBoolean(CACHE_DATA_ON_READ_KEY, DEFAULT_CACHE_DATA_ON_READ) &&<a name="line.151"></a> +<span class="sourceLineNo">152</span> (family == null ? true : family.isBlockCacheEnabled());<a name="line.152"></a> +<span class="sourceLineNo">153</span> this.inMemory = family == null ? DEFAULT_IN_MEMORY : family.isInMemory();<a name="line.153"></a> +<span class="sourceLineNo">154</span> this.cacheDataCompressed =<a name="line.154"></a> +<span class="sourceLineNo">155</span> conf.getBoolean(CACHE_DATA_BLOCKS_COMPRESSED_KEY, DEFAULT_CACHE_DATA_COMPRESSED);<a name="line.155"></a> +<span class="sourceLineNo">156</span> this.dropBehindCompaction =<a name="line.156"></a> +<span class="sourceLineNo">157</span> conf.getBoolean(DROP_BEHIND_CACHE_COMPACTION_KEY, DROP_BEHIND_CACHE_COMPACTION_DEFAULT);<a name="line.157"></a> +<span class="sourceLineNo">158</span> // For the following flags we enable them regardless of per-schema settings<a name="line.158"></a> +<span class="sourceLineNo">159</span> // if they are enabled in the global configuration.<a name="line.159"></a> +<span class="sourceLineNo">160</span> this.cacheDataOnWrite =<a name="line.160"></a> +<span class="sourceLineNo">161</span> conf.getBoolean(CACHE_BLOCKS_ON_WRITE_KEY, DEFAULT_CACHE_DATA_ON_WRITE) ||<a name="line.161"></a> +<span class="sourceLineNo">162</span> (family == null ? false : family.isCacheDataOnWrite());<a name="line.162"></a> +<span class="sourceLineNo">163</span> this.cacheIndexesOnWrite =<a name="line.163"></a> +<span class="sourceLineNo">164</span> conf.getBoolean(CACHE_INDEX_BLOCKS_ON_WRITE_KEY, DEFAULT_CACHE_INDEXES_ON_WRITE) ||<a name="line.164"></a> +<span class="sourceLineNo">165</span> (family == null ? false : family.isCacheIndexesOnWrite());<a name="line.165"></a> +<span class="sourceLineNo">166</span> this.cacheBloomsOnWrite =<a name="line.166"></a> +<span class="sourceLineNo">167</span> conf.getBoolean(CACHE_BLOOM_BLOCKS_ON_WRITE_KEY, DEFAULT_CACHE_BLOOMS_ON_WRITE) ||<a name="line.167"></a> +<span class="sourceLineNo">168</span> (family == null ? false : family.isCacheBloomsOnWrite());<a name="line.168"></a> +<span class="sourceLineNo">169</span> this.evictOnClose = conf.getBoolean(EVICT_BLOCKS_ON_CLOSE_KEY, DEFAULT_EVICT_ON_CLOSE) ||<a name="line.169"></a> +<span class="sourceLineNo">170</span> (family == null ? false : family.isEvictBlocksOnClose());<a name="line.170"></a> +<span class="sourceLineNo">171</span> this.prefetchOnOpen = conf.getBoolean(PREFETCH_BLOCKS_ON_OPEN_KEY, DEFAULT_PREFETCH_ON_OPEN) ||<a name="line.171"></a> +<span class="sourceLineNo">172</span> (family == null ? false : family.isPrefetchBlocksOnOpen());<a name="line.172"></a> +<span class="sourceLineNo">173</span> this.blockCache = blockCache;<a name="line.173"></a> +<span class="sourceLineNo">174</span> LOG.info("Created cacheConfig: " + this + (family == null ? "" : " for family " + family) +<a name="line.174"></a> +<span class="sourceLineNo">175</span> " with blockCache=" + blockCache);<a name="line.175"></a> +<span class="sourceLineNo">176</span> }<a name="line.176"></a> +<span class="sourceLineNo">177</span><a name="line.177"></a> +<span class="sourceLineNo">178</span> /**<a name="line.178"></a> +<span class="sourceLineNo">179</span> * Constructs a cache configuration copied from the specified configuration.<a name="line.179"></a> +<span class="sourceLineNo">180</span> * @param cacheConf<a name="line.180"></a> +<span class="sourceLineNo">181</span> */<a name="line.181"></a> +<span class="sourceLineNo">182</span> public CacheConfig(CacheConfig cacheConf) {<a name="line.182"></a> +<span class="sourceLineNo">183</span> this.cacheDataOnRead = cacheConf.cacheDataOnRead;<a name="line.183"></a> +<span class="sourceLineNo">184</span> this.inMemory = cacheConf.inMemory;<a name="line.184"></a> +<span class="sourceLineNo">185</span> this.cacheDataOnWrite = cacheConf.cacheDataOnWrite;<a name="line.185"></a> +<span class="sourceLineNo">186</span> this.cacheIndexesOnWrite = cacheConf.cacheIndexesOnWrite;<a name="line.186"></a> +<span class="sourceLineNo">187</span> this.cacheBloomsOnWrite = cacheConf.cacheBloomsOnWrite;<a name="line.187"></a> +<span class="sourceLineNo">188</span> this.evictOnClose = cacheConf.evictOnClose;<a name="line.188"></a> +<span class="sourceLineNo">189</span> this.cacheDataCompressed = cacheConf.cacheDataCompressed;<a name="line.189"></a> +<span class="sourceLineNo">190</span> this.prefetchOnOpen = cacheConf.prefetchOnOpen;<a name="line.190"></a> +<span class="sourceLineNo">191</span> this.dropBehindCompaction = cacheConf.dropBehindCompaction;<a name="line.191"></a> +<span class="sourceLineNo">192</span> this.blockCache = cacheConf.blockCache;<a name="line.192"></a> +<span class="sourceLineNo">193</span> }<a name="line.193"></a> +<span class="sourceLineNo">194</span><a name="line.194"></a> +<span class="sourceLineNo">195</span> private CacheConfig() {<a name="line.195"></a> +<span class="sourceLineNo">196</span> this.cacheDataOnRead = false;<a name="line.196"></a> +<span class="sourceLineNo">197</span> this.inMemory = false;<a name="line.197"></a> +<span class="sourceLineNo">198</span> this.cacheDataOnWrite = false;<a name="line.198"></a> +<span class="sourceLineNo">199</span> this.cacheIndexesOnWrite = false;<a name="line.199"></a> +<span class="sourceLineNo">200</span> this.cacheBloomsOnWrite = false;<a name="line.200"></a> +<span class="sourceLineNo">201</span> this.evictOnClose = false;<a name="line.201"></a> +<span class="sourceLineNo">202</span> this.cacheDataCompressed = false;<a name="line.202"></a> +<span class="sourceLineNo">203</span> this.prefetchOnOpen = false;<a name="line.203"></a> +<span class="sourceLineNo">204</span> this.dropBehindCompaction = false;<a name="line.204"></a> +<span class="sourceLineNo">205</span> this.blockCache = null;<a name="line.205"></a> +<span class="sourceLineNo">206</span> }<a name="line.206"></a> +<span class="sourceLineNo">207</span><a name="line.207"></a> +<span class="sourceLineNo">208</span> /**<a name="line.208"></a> +<span class="sourceLineNo">209</span> * Returns whether the DATA blocks of this HFile should be cached on read or not (we always<a name="line.209"></a> +<span class="sourceLineNo">210</span> * cache the meta blocks, the INDEX and BLOOM blocks).<a name="line.210"></a> +<span class="sourceLineNo">211</span> * @return true if blocks should be cached on read, false if not<a name="line.211"></a> +<span class="sourceLineNo">212</span> */<a name="line.212"></a> +<span class="sourceLineNo">213</span> public boolean shouldCacheDataOnRead() {<a name="line.213"></a> +<span class="sourceLineNo">214</span> return cacheDataOnRead;<a name="line.214"></a> +<span class="sourceLineNo">215</span> }<a name="line.215"></a> +<span class="sourceLineNo">216</span><a name="line.216"></a> +<span class="sourceLineNo">217</span> public boolean shouldDropBehindCompaction() {<a name="line.217"></a> +<span class="sourceLineNo">218</span> return dropBehindCompaction;<a name="line.218"></a> +<span class="sourceLineNo">219</span> }<a name="line.219"></a> +<span class="sourceLineNo">220</span><a name="line.220"></a> +<span class="sourceLineNo">221</span> /**<a name="line.221"></a> +<span class="sourceLineNo">222</span> * Should we cache a block of a particular category? We always cache<a name="line.222"></a> +<span class="sourceLineNo">223</span> * important blocks such as index blocks, as long as the block cache is<a name="line.223"></a> +<span class="sourceLineNo">224</span> * available.<a name="line.224"></a> +<span class="sourceLineNo">225</span> */<a name="line.225"></a> +<span class="sourceLineNo">226</span> public boolean shouldCacheBlockOnRead(BlockCategory category) {<a name="line.226"></a> +<span class="sourceLineNo">227</span> return cacheDataOnRead || category == BlockCategory.INDEX || category == BlockCategory.BLOOM ||<a name="line.227"></a> +<span class="sourceLineNo">228</span> (prefetchOnOpen && (category != BlockCategory.META && category != BlockCategory.UNKNOWN));<a name="line.228"></a> +<span class="sourceLineNo">229</span> }<a name="line.229"></a> +<span class="sourceLineNo">230</span><a name="line.230"></a> +<span class="sourceLineNo">231</span> /**<a name="line.231"></a> +<span class="sourceLineNo">232</span> * @return true if blocks in this file should be flagged as in-memory<a name="line.232"></a> +<span class="sourceLineNo">233</span> */<a name="line.233"></a> +<span class="sourceLineNo">234</span> public boolean isInMemory() {<a name="line.234"></a> +<span class="sourceLineNo">235</span> return this.inMemory;<a name="line.235"></a> +<span class="sourceLineNo">236</span> }<a name="line.236"></a> +<span class="sourceLineNo">237</span><a name="line.237"></a> +<span class="sourceLineNo">238</span> /**<a name="line.238"></a> +<span class="sourceLineNo">239</span> * @return true if data blocks should be written to the cache when an HFile is<a name="line.239"></a> +<span class="sourceLineNo">240</span> * written, false if not<a name="line.240"></a> +<span class="sourceLineNo">241</span> */<a name="line.241"></a> +<span class="sourceLineNo">242</span> public boolean shouldCacheDataOnWrite() {<a name="line.242"></a> +<span class="sourceLineNo">243</span> return this.cacheDataOnWrite;<a name="line.243"></a> +<span class="sourceLineNo">244</span> }<a name="line.244"></a> +<span class="sourceLineNo">245</span><a name="line.245"></a> +<span class="sourceLineNo">246</span> /**<a name="line.246"></a> +<span class="sourceLineNo">247</span> * @param cacheDataOnWrite whether data blocks should be written to the cache<a name="line.247"></a> +<span class="sourceLineNo">248</span> * when an HFile is written<a name="line.248"></a> +<span class="sourceLineNo">249</span> */<a name="line.249"></a> +<span class="sourceLineNo">250</span> @VisibleForTesting<a name="line.250"></a> +<span class="sourceLineNo">251</span> public void setCacheDataOnWrite(boolean cacheDataOnWrite) {<a name="line.251"></a> +<span class="sourceLineNo">252</span> this.cacheDataOnWrite = cacheDataOnWrite;<a name="line.252"></a> +<span class="sourceLineNo">253</span> }<a name="line.253"></a> +<span class="sourceLineNo">254</span><a name="line.254"></a> +<span class="sourceLineNo">255</span> /**<a name="line.255"></a> +<span class="sourceLineNo">256</span> * @return true if index blocks should be written to the cache when an HFile<a name="line.256"></a> +<span class="sourceLineNo">257</span> * is written, false if not<a name="line.257"></a> +<span class="sourceLineNo">258</span> */<a name="line.258"></a> +<span class="sourceLineNo">259</span> public boolean shouldCacheIndexesOnWrite() {<a name="line.259"></a> +<span class="sourceLineNo">260</span> return this.cacheIndexesOnWrite;<a name="line.260"></a> +<span class="sourceLineNo">261</span> }<a name="line.261"></a> +<span class="sourceLineNo">262</span><a name="line.262"></a> +<span class="sourceLineNo">263</span> /**<a name="line.263"></a> +<span class="sourceLineNo">264</span> * @return true if bloom blocks should be written to the cache when an HFile<a name="line.264"></a> +<span class="sourceLineNo">265</span> * is written, false if not<a name="line.265"></a> +<span class="sourceLineNo">266</span> */<a name="line.266"></a> +<span class="sourceLineNo">267</span> public boolean shouldCacheBloomsOnWrite() {<a name="line.267"></a> +<span class="sourceLineNo">268</span> return this.cacheBloomsOnWrite;<a name="line.268"></a> +<span class="sourceLineNo">269</span> }<a name="line.269"></a> +<span class="sourceLineNo">270</span><a name="line.270"></a> +<span class="sourceLineNo">271</span> /**<a name="line.271"></a> +<span class="sourceLineNo">272</span> * @return true if blocks should be evicted from the cache when an HFile<a name="line.272"></a> +<span class="sourceLineNo">273</span> * reader is closed, false if not<a name="line.273"></a> +<span class="sourceLineNo">274</span> */<a name="line.274"></a> +<span class="sourceLineNo">275</span> public boolean shouldEvictOnClose() {<a name="line.275"></a> +<span class="sourceLineNo">276</span> return this.evictOnClose;<a name="line.276"></a> +<span class="sourceLineNo">277</span> }<a name="line.277"></a> +<span class="sourceLineNo">278</span><a name="line.278"></a> +<span class="sourceLineNo">279</span> /**<a name="line.279"></a> +<span class="sourceLineNo">280</span> * Only used for testing.<a name="line.280"></a> +<span class="sourceLineNo">281</span> * @param evictOnClose whether blocks should be evicted from the cache when an<a name="line.281"></a> +<span class="sourceLineNo">282</span> * HFile reader is closed<a name="line.282"></a> +<span class="sourceLineNo">283</span> */<a name="line.283"></a> +<span class="sourceLineNo">284</span> @VisibleForTesting<a name="line.284"></a> +<span class="sourceLineNo">285</span> public void setEvictOnClose(boolean evictOnClose) {<a name="line.285"></a> +<span class="sourceLineNo">286</span> this.evictOnClose = evictOnClose;<a name="line.286"></a> +<span class="sourceLineNo">287</span> }<a name="line.287"></a> +<span class="sourceLineNo">288</span><a name="line.288"></a> +<span class="sourceLineNo">289</span> /**<a name="line.289"></a> +<span class="sourceLineNo">290</span> * @return true if data blocks should be compressed in the cache, false if not<a name="line.290"></a> +<span class="sourceLineNo">291</span> */<a name="line.291"></a> +<span class="sourceLineNo">292</span> public boolean shouldCacheDataCompressed() {<a name="line.292"></a> +<span class="sourceLineNo">293</span> return this.cacheDataOnRead && this.cacheDataCompressed;<a name="line.293"></a> <span class="sourceLineNo">294</span> }<a name="line.294"></a> <span class="sourceLineNo">295</span><a name="line.295"></a> <span class="sourceLineNo">296</span> /**<a name="line.296"></a> -<span class="sourceLineNo">297</span> * Constructs a cache configuration copied from the specified configuration.<a name="line.297"></a> -<span class="sourceLineNo">298</span> * @param cacheConf<a name="line.298"></a> -<span class="sourceLineNo">299</span> */<a name="line.299"></a> -<span class="sourceLineNo">300</span> public CacheConfig(CacheConfig cacheConf) {<a name="line.300"></a> -<span class="sourceLineNo">301</span> this(cacheConf.blockCache, cacheConf.cacheDataOnRead, cacheConf.inMemory,<a name="line.301"></a> -<span class="sourceLineNo">302</span> cacheConf.cacheDataOnWrite, cacheConf.cacheIndexesOnWrite,<a name="line.302"></a> -<span class="sourceLineNo">303</span> cacheConf.cacheBloomsOnWrite, cacheConf.evictOnClose,<a name="line.303"></a> -<span class="sourceLineNo">304</span> cacheConf.cacheDataCompressed, cacheConf.prefetchOnOpen,<a name="line.304"></a> -<span class="sourceLineNo">305</span> cacheConf.dropBehindCompaction);<a name="line.305"></a> +<span class="sourceLineNo">297</span> * @return true if this {@link BlockCategory} should be compressed in blockcache, false otherwise<a name="line.297"></a> +<span class="sourceLineNo">298</span> */<a name="line.298"></a> +<span class="sourceLineNo">299</span> public boolean shouldCacheCompressed(BlockCategory category) {<a name="line.299"></a> +<span class="sourceLineNo">300</span> switch (category) {<a name="line.300"></a> +<span class="sourceLineNo">301</span> case DATA:<a name="line.301"></a> +<span class="sourceLineNo">302</span> return this.cacheDataOnRead && this.cacheDataCompressed;<a name="line.302"></a> +<span class="sourceLineNo">303</span> default:<a name="line.303"></a> +<span class="sourceLineNo">304</span> return false;<a name="line.304"></a> +<span class="sourceLineNo">305</span> }<a name="line.305"></a> <span class="sourceLineNo">306</span> }<a name="line.306"></a> <span class="sourceLineNo">307</span><a name="line.307"></a> -<span class="sourceLineNo">308</span> private CacheConfig() {<a name="line.308"></a> -<span class="sourceLineNo">309</span> this(null, false, false, false, false, false, false, false, false, false);<a name="line.309"></a> -<span class="sourceLineNo">310</span> }<a name="line.310"></a> -<span class="sourceLineNo">311</span><a name="line.311"></a> -<span class="sourceLineNo">312</span> /**<a name="line.312"></a> -<span class="sourceLineNo">313</span> * Checks whether the block cache is enabled.<a name="line.313"></a> -<span class="sourceLineNo">314</span> */<a name="line.314"></a> -<span class="sourceLineNo">315</span> public boolean isBlockCacheEnabled() {<a name="line.315"></a> -<span class="sourceLineNo">316</span> return this.blockCache != null;<a name="line.316"></a> -<span class="sourceLineNo">317</span> }<a name="line.317"></a> -<span class="sourceLineNo">318</span><a name="line.318"></a> -<span class="sourceLineNo">319</span> /**<a name="line.319"></a> -<span class="sourceLineNo">320</span> * Returns the block cache.<a name="line.320"></a> -<span class="sourceLineNo">321</span> * @return the block cache, or null if caching is completely disabled<a name="line.321"></a> +<span class="sourceLineNo">308</span> /**<a name="line.308"></a> +<span class="sourceLineNo">309</span> * @return true if blocks should be prefetched into the cache on open, false if not<a name="line.309"></a> +<span class="sourceLineNo">310</span> */<a name="line.310"></a> +<span class="sourceLineNo">311</span> public boolean shouldPrefetchOnOpen() {<a name="line.311"></a> +<span class="sourceLineNo">312</span> return this.prefetchOnOpen;<a name="line.312"></a> +<span class="sourceLineNo">313</span> }<a name="line.313"></a> +<span class="sourceLineNo">314</span><a name="line.314"></a> +<span class="sourceLineNo">315</span> /**<a name="line.315"></a> +<span class="sourceLineNo">316</span> * Return true if we may find this type of block in block cache.<a name="line.316"></a> +<span class="sourceLineNo">317</span> * <p><a name="line.317"></a> +<span class="sourceLineNo">318</span> * TODO: today {@code family.isBlockCacheEnabled()} only means {@code cacheDataOnRead}, so here we<a name="line.318"></a> +<span class="sourceLineNo">319</span> * consider lots of other configurations such as {@code cacheDataOnWrite}. We should fix this in<a name="line.319"></a> +<span class="sourceLineNo">320</span> * the future, {@code cacheDataOnWrite} should honor the CF level {@code isBlockCacheEnabled}<a name="line.320"></a> +<span class="sourceLineNo">321</span> * configuration.<a name="line.321"></a> <span class="sourceLineNo">322</span> */<a name="line.322"></a> -<span class="sourceLineNo">323</span> public BlockCache getBlockCache() {<a name="line.323"></a> -<span class="sourceLineNo">324</span> return this.blockCache;<a name="line.324"></a> -<span class="sourceLineNo">325</span> }<a name="line.325"></a> -<span class="sourceLineNo">326</span><a name="line.326"></a> -<span class="sourceLineNo">327</span> /**<a name="line.327"></a> -<span class="sourceLineNo">328</span> * Returns whether the DATA blocks of this HFile should be cached on read or not (we always<a name="line.328"></a> -<span class="sourceLineNo">329</span> * cache the meta blocks, the INDEX and BLOOM blocks).<a name="line.329"></a> -<span class="sourceLineNo">330</span> * @return true if blocks should be cached on read, false if not<a name="line.330"></a> -<span class="sourceLineNo">331</span> */<a name="line.331"></a> -<span class="sourceLineNo">332</span> public boolean shouldCacheDataOnRead() {<a name="line.332"></a> -<span class="sourceLineNo">333</span> return isBlockCacheEnabled() && cacheDataOnRead;<a name="line.333"></a> -<span class="sourceLineNo">334</span> }<a name="line.334"></a> -<span class="sourceLineNo">335</span><a name="line.335"></a> -<span class="sourceLineNo">336</span> public boolean shouldDropBehindCompaction() {<a name="line.336"></a> -<span class="sourceLineNo">337</span> return dropBehindCompaction;<a name="line.337"></a> -<span class="sourceLineNo">338</span> }<a name="line.338"></a> -<span class="sourceLineNo">339</span><a name="line.339"></a> -<span class="sourceLineNo">340</span> /**<a name="line.340"></a> -<span class="sourceLineNo">341</span> * Should we cache a block of a particular category? We always cache<a name="line.341"></a> -<span class="sourceLineNo">342</span> * important blocks such as index blocks, as long as the block cache is<a name="line.342"></a> -<span class="sourceLineNo">343</span> * available.<a name="line.343"></a> -<span class="sourceLineNo">344</span> */<a name="line.344"></a> -<span class="sourceLineNo">345</span> public boolean shouldCacheBlockOnRead(BlockCategory category) {<a name="line.345"></a> -<span class="sourceLineNo">346</span> return isBlockCacheEnabled()<a name="line.346"></a> -<span class="sourceLineNo">347</span> && (cacheDataOnRead ||<a name="line.347"></a> -<span class="sourceLineNo">348</span> category == BlockCategory.INDEX ||<a name="line.348"></a> -<span class="sourceLineNo">349</span> category == BlockCategory.BLOOM ||<a name="line.349"></a> -<span class="sourceLineNo">350</span> (prefetchOnOpen &&<a name="line.350"></a> -<span class="sourceLineNo">351</span> (category != BlockCategory.META &&<a name="line.351"></a> -<span 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"org.apache.hadoop.hbase.io.hfile.MemcachedBlockCache"));<a name="line.567"></a> -<span class="sourceLineNo">568</span> } catch (ClassNotFoundException e) {<a name="line.568"></a> -<span class="sourceLineNo">569</span> return null;<a name="line.569"></a> -<span class="sourceLineNo">570</span> }<a name="line.570"></a> -<span class="sourceLineNo">571</span> }<a name="line.571"></a> -<span class="sourceLineNo">572</span><a name="line.572"></a> -<span class="sourceLineNo">573</span> // Now try and create an instance of the block cache.<a name="line.573"></a> -<span class="sourceLineNo">574</span> try {<a name="line.574"></a> -<span class="sourceLineNo">575</span> LOG.info("Creating external block cache of type: " + klass);<a name="line.575"></a> -<span class="sourceLineNo">576</span> return (BlockCache) ReflectionUtils.newInstance(klass, c);<a name="line.576"></a> -<span class="sourceLineNo">577</span> } catch (Exception e) {<a name="line.577"></a> -<span class="sourceLineNo">578</span> 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"<a name="line.597"></a> -<span class="sourceLineNo">598</span> + "respected. See comments in http://hbase.apache.org/book.html#_changes_of_note");<a name="line.598"></a> -<span class="sourceLineNo">599</span> }<a name="line.599"></a> -<span class="sourceLineNo">600</span> int writerThreads = c.getInt(BUCKET_CACHE_WRITER_THREADS_KEY,<a name="line.600"></a> -<span class="sourceLineNo">601</span> DEFAULT_BUCKET_CACHE_WRITER_THREADS);<a name="line.601"></a> -<span class="sourceLineNo">602</span> int writerQueueLen = c.getInt(BUCKET_CACHE_WRITER_QUEUE_KEY,<a name="line.602"></a> -<span class="sourceLineNo">603</span> DEFAULT_BUCKET_CACHE_WRITER_QUEUE);<a name="line.603"></a> -<span class="sourceLineNo">604</span> String persistentPath = c.get(BUCKET_CACHE_PERSISTENT_PATH_KEY);<a name="line.604"></a> -<span class="sourceLineNo">605</span> String[] configuredBucketSizes = c.getStrings(BUCKET_CACHE_BUCKETS_KEY);<a name="line.605"></a> -<span class="sourceLineNo">606</span> int [] bucketSizes = null;<a name="line.606"></a> -<span class="sourceLineNo">607</span> if (configuredBucketSizes != null) {<a name="line.607"></a> -<span class="sourceLineNo">608</span> bucketSizes = new int[configuredBucketSizes.length];<a name="line.608"></a> -<span class="sourceLineNo">609</span> for (int i = 0; i < configuredBucketSizes.length; i++) {<a name="line.609"></a> -<span class="sourceLineNo">610</span> int bucketSize = Integer.parseInt(configuredBucketSizes[i].trim());<a name="line.610"></a> -<span class="sourceLineNo">611</span> if (bucketSize % 256 != 0) {<a name="line.611"></a> -<span class="sourceLineNo">612</span> // We need all the bucket sizes to be multiples of 256. Having all the configured bucket<a name="line.612"></a> -<span class="sourceLineNo">613</span> // sizes to be multiples of 256 will ensure that the block offsets within buckets,<a name="line.613"></a> -<span class="sourceLineNo">614</span> // that are calculated, will also be multiples of 256.<a name="line.614"></a> -<span class="sourceLineNo">615</span> // See BucketEntry where offset to each block is represented using 5 bytes (instead of 8<a name="line.615"></a> -<span class="sourceLineNo">616</span> // bytes long). We would like to save heap overhead as less as possible.<a name="line.616"></a> -<span class="sourceLineNo">617</span> throw new IllegalArgumentException("Illegal value: " + bucketSize + " configured for '"<a name="line.617"></a> -<span class="sourceLineNo">618</span> + BUCKET_CACHE_BUCKETS_KEY + "'. A
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