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| <div class="subTitle">org.apache.hadoop.hbase.io.hfile</div> |
| <h2 title="Class BlockCacheFactory" class="title">Class BlockCacheFactory</h2> |
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| <ul class="inheritance"> |
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| <li>org.apache.hadoop.hbase.io.hfile.BlockCacheFactory</li> |
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| <pre>@InterfaceAudience.Private |
| public final class <a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/BlockCacheFactory.html#line.37">BlockCacheFactory</a> |
| extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></pre> |
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| <td class="colFirst"><code>private static class </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/io/hfile/BlockCacheFactory.ExternalBlockCaches.html" title="enum in org.apache.hadoop.hbase.io.hfile">BlockCacheFactory.ExternalBlockCaches</a></span></code> |
| <div class="block">Enum of all built in external block caches.</div> |
| </td> |
| </tr> |
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| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colLast" scope="col">Field and Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/io/hfile/BlockCacheFactory.html#BLOCKCACHE_BLOCKSIZE_KEY">BLOCKCACHE_BLOCKSIZE_KEY</a></span></code> |
| <div class="block">The target block size used by blockcache instances.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/io/hfile/BlockCacheFactory.html#BLOCKCACHE_POLICY_DEFAULT">BLOCKCACHE_POLICY_DEFAULT</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/io/hfile/BlockCacheFactory.html#BLOCKCACHE_POLICY_KEY">BLOCKCACHE_POLICY_KEY</a></span></code> |
| <div class="block">Configuration key to cache block policy (Lru, TinyLfu).</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/io/hfile/BlockCacheFactory.html#BUCKET_CACHE_BUCKETS_KEY">BUCKET_CACHE_BUCKETS_KEY</a></span></code> |
| <div class="block">A comma-delimited array of values for use as bucket sizes.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/io/hfile/BlockCacheFactory.html#BUCKET_CACHE_PERSISTENT_PATH_KEY">BUCKET_CACHE_PERSISTENT_PATH_KEY</a></span></code> |
| <div class="block">If the chosen ioengine can persist its state across restarts, the path to the file to persist |
| to.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/io/hfile/BlockCacheFactory.html#BUCKET_CACHE_WRITER_QUEUE_KEY">BUCKET_CACHE_WRITER_QUEUE_KEY</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/io/hfile/BlockCacheFactory.html#BUCKET_CACHE_WRITER_THREADS_KEY">BUCKET_CACHE_WRITER_THREADS_KEY</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>static int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/io/hfile/BlockCacheFactory.html#DEFAULT_BUCKET_CACHE_WRITER_QUEUE">DEFAULT_BUCKET_CACHE_WRITER_QUEUE</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/io/hfile/BlockCacheFactory.html#DEFAULT_BUCKET_CACHE_WRITER_THREADS">DEFAULT_BUCKET_CACHE_WRITER_THREADS</a></span></code> |
| <div class="block">Defaults for Bucket cache</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>(package private) static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/io/hfile/BlockCacheFactory.html#DEPRECATED_BLOCKCACHE_BLOCKSIZE_KEY">DEPRECATED_BLOCKCACHE_BLOCKSIZE_KEY</a></span></code> |
| <div class="block"><span class="deprecatedLabel">Deprecated.</span> |
| <div class="block"><span class="deprecationComment">use <a href="../../../../../../org/apache/hadoop/hbase/io/hfile/BlockCacheFactory.html#BLOCKCACHE_BLOCKSIZE_KEY"><code>BLOCKCACHE_BLOCKSIZE_KEY</code></a> instead.</span></div> |
| </div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>private static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/io/hfile/BlockCacheFactory.html#EXTERNAL_BLOCKCACHE_CLASS_KEY">EXTERNAL_BLOCKCACHE_CLASS_KEY</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>private static boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/io/hfile/BlockCacheFactory.html#EXTERNAL_BLOCKCACHE_DEFAULT">EXTERNAL_BLOCKCACHE_DEFAULT</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>private static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/io/hfile/BlockCacheFactory.html#EXTERNAL_BLOCKCACHE_KEY">EXTERNAL_BLOCKCACHE_KEY</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>private static org.slf4j.Logger</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/io/hfile/BlockCacheFactory.html#LOG">LOG</a></span></code> </td> |
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| <td class="colFirst"><code>private </code></td> |
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| <td class="colFirst"><code>static <a href="../../../../../../org/apache/hadoop/hbase/io/hfile/BlockCache.html" title="interface in org.apache.hadoop.hbase.io.hfile">BlockCache</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/io/hfile/BlockCacheFactory.html#createBlockCache-org.apache.hadoop.conf.Configuration-">createBlockCache</a></span>(org.apache.hadoop.conf.Configuration conf)</code> </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>private static <a href="../../../../../../org/apache/hadoop/hbase/io/hfile/bucket/BucketCache.html" title="class in org.apache.hadoop.hbase.io.hfile.bucket">BucketCache</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/io/hfile/BlockCacheFactory.html#createBucketCache-org.apache.hadoop.conf.Configuration-">createBucketCache</a></span>(org.apache.hadoop.conf.Configuration c)</code> </td> |
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| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>private static <a href="../../../../../../org/apache/hadoop/hbase/io/hfile/BlockCache.html" title="interface in org.apache.hadoop.hbase.io.hfile">BlockCache</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/io/hfile/BlockCacheFactory.html#createExternalBlockcache-org.apache.hadoop.conf.Configuration-">createExternalBlockcache</a></span>(org.apache.hadoop.conf.Configuration c)</code> </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>private static <a href="../../../../../../org/apache/hadoop/hbase/io/hfile/FirstLevelBlockCache.html" title="interface in org.apache.hadoop.hbase.io.hfile">FirstLevelBlockCache</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/io/hfile/BlockCacheFactory.html#createFirstLevelCache-org.apache.hadoop.conf.Configuration-">createFirstLevelCache</a></span>(org.apache.hadoop.conf.Configuration c)</code> </td> |
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| <code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#clone--" title="class or interface in java.lang">clone</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#equals-java.lang.Object-" title="class or interface in java.lang">equals</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#finalize--" title="class or interface in java.lang">finalize</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#getClass--" title="class or interface in java.lang">getClass</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#hashCode--" title="class or interface in java.lang">hashCode</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notify--" title="class or interface in java.lang">notify</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notifyAll--" title="class or interface in java.lang">notifyAll</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#toString--" title="class or interface in java.lang">toString</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait--" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-int-" title="class or interface in java.lang">wait</a></code></li> |
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| <h3>Field Detail</h3> |
| <a name="LOG"> |
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| <li class="blockList"> |
| <h4>LOG</h4> |
| <pre>private static final org.slf4j.Logger <a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/BlockCacheFactory.html#line.39">LOG</a></pre> |
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| <a name="BLOCKCACHE_POLICY_KEY"> |
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| <h4>BLOCKCACHE_POLICY_KEY</h4> |
| <pre>public static final <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> <a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/BlockCacheFactory.html#line.48">BLOCKCACHE_POLICY_KEY</a></pre> |
| <div class="block">Configuration key to cache block policy (Lru, TinyLfu).</div> |
| <dl> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../../../constant-values.html#org.apache.hadoop.hbase.io.hfile.BlockCacheFactory.BLOCKCACHE_POLICY_KEY">Constant Field Values</a></dd> |
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| <h4>BLOCKCACHE_POLICY_DEFAULT</h4> |
| <pre>public static final <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> <a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/BlockCacheFactory.html#line.49">BLOCKCACHE_POLICY_DEFAULT</a></pre> |
| <dl> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../../../constant-values.html#org.apache.hadoop.hbase.io.hfile.BlockCacheFactory.BLOCKCACHE_POLICY_DEFAULT">Constant Field Values</a></dd> |
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| <a name="BUCKET_CACHE_PERSISTENT_PATH_KEY"> |
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| <h4>BUCKET_CACHE_PERSISTENT_PATH_KEY</h4> |
| <pre>public static final <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> <a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/BlockCacheFactory.html#line.61">BUCKET_CACHE_PERSISTENT_PATH_KEY</a></pre> |
| <div class="block">If the chosen ioengine can persist its state across restarts, the path to the file to persist |
| to. This file is NOT the data file. It is a file into which we will serialize the map of |
| what is in the data file. For example, if you pass the following argument as |
| BUCKET_CACHE_IOENGINE_KEY ("hbase.bucketcache.ioengine"), |
| <code>file:/tmp/bucketcache.data </code>, then we will write the bucketcache data to the file |
| <code>/tmp/bucketcache.data</code> but the metadata on where the data is in the supplied file |
| is an in-memory map that needs to be persisted across restarts. Where to store this |
| in-memory state is what you supply here: e.g. <code>/tmp/bucketcache.map</code>.</div> |
| <dl> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../../../constant-values.html#org.apache.hadoop.hbase.io.hfile.BlockCacheFactory.BUCKET_CACHE_PERSISTENT_PATH_KEY">Constant Field Values</a></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="BUCKET_CACHE_WRITER_THREADS_KEY"> |
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| <div class="block">The target block size used by blockcache instances. Defaults to |
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