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| <div class="subTitle">org.apache.hadoop.hbase.io.hfile.bucket</div> |
| <h2 title="Class BucketAllocator" class="title">Class BucketAllocator</h2> |
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| <ul class="inheritance"> |
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| <li>org.apache.hadoop.hbase.io.hfile.bucket.BucketAllocator</li> |
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| <pre>@InterfaceAudience.Private |
| public final class <a href="../../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/bucket/BucketAllocator.html#line.49">BucketAllocator</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> |
| <div class="block">This class is used to allocate a block with specified size and free the block when evicting. It |
| manages an array of buckets, each bucket is associated with a size and caches elements up to this |
| size. For a completely empty bucket, this size could be re-specified dynamically. |
| <p/> |
| This class is not thread safe.</div> |
| </li> |
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| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colLast" scope="col">Class and Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static class </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/io/hfile/bucket/BucketAllocator.Bucket.html" title="class in org.apache.hadoop.hbase.io.hfile.bucket">BucketAllocator.Bucket</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>(package private) class </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/io/hfile/bucket/BucketAllocator.BucketSizeInfo.html" title="class in org.apache.hadoop.hbase.io.hfile.bucket">BucketAllocator.BucketSizeInfo</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>(package private) static class </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/io/hfile/bucket/BucketAllocator.IndexStatistics.html" title="class in org.apache.hadoop.hbase.io.hfile.bucket">BucketAllocator.IndexStatistics</a></span></code> </td> |
| </tr> |
| </table> |
| </li> |
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| <caption><span>Fields</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <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>private int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/io/hfile/bucket/BucketAllocator.html#bigItemSize">bigItemSize</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>private long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/io/hfile/bucket/BucketAllocator.html#bucketCapacity">bucketCapacity</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>private <a href="../../../../../../../org/apache/hadoop/hbase/io/hfile/bucket/BucketAllocator.Bucket.html" title="class in org.apache.hadoop.hbase.io.hfile.bucket">BucketAllocator.Bucket</a>[]</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/io/hfile/bucket/BucketAllocator.html#buckets">buckets</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>private <a href="../../../../../../../org/apache/hadoop/hbase/io/hfile/bucket/BucketAllocator.BucketSizeInfo.html" title="class in org.apache.hadoop.hbase.io.hfile.bucket">BucketAllocator.BucketSizeInfo</a>[]</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/io/hfile/bucket/BucketAllocator.html#bucketSizeInfos">bucketSizeInfos</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>private int[]</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/io/hfile/bucket/BucketAllocator.html#bucketSizes">bucketSizes</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>private static int[]</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/io/hfile/bucket/BucketAllocator.html#DEFAULT_BUCKET_SIZES">DEFAULT_BUCKET_SIZES</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/bucket/BucketAllocator.html#FEWEST_ITEMS_IN_BUCKET">FEWEST_ITEMS_IN_BUCKET</a></span></code> |
| <div class="block">So, what is the minimum amount of items we'll tolerate in a single bucket?</div> |
| </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/bucket/BucketAllocator.html#LOG">LOG</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>private long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/io/hfile/bucket/BucketAllocator.html#totalSize">totalSize</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>private long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/io/hfile/bucket/BucketAllocator.html#usedSize">usedSize</a></span></code> </td> |
| </tr> |
| </table> |
| </li> |
| </ul> |
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| <h3>Constructor Summary</h3> |
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| <caption><span>Constructors</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colOne" scope="col">Constructor and Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/io/hfile/bucket/BucketAllocator.html#BucketAllocator-long-int:A-">BucketAllocator</a></span>(long availableSpace, |
| int[] bucketSizes)</code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/io/hfile/bucket/BucketAllocator.html#BucketAllocator-long-int:A-java.util.Map-java.util.concurrent.atomic.LongAdder-">BucketAllocator</a></span>(long availableSpace, |
| int[] bucketSizes, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a><<a href="../../../../../../../org/apache/hadoop/hbase/io/hfile/BlockCacheKey.html" title="class in org.apache.hadoop.hbase.io.hfile">BlockCacheKey</a>,<a href="../../../../../../../org/apache/hadoop/hbase/io/hfile/bucket/BucketEntry.html" title="class in org.apache.hadoop.hbase.io.hfile.bucket">BucketEntry</a>> map, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/atomic/LongAdder.html?is-external=true" title="class or interface in java.util.concurrent.atomic">LongAdder</a> realCacheSize)</code> |
| <div class="block">Rebuild the allocator's data structures from a persisted map.</div> |
| </td> |
| </tr> |
| </table> |
| </li> |
| </ul> |
| <!-- ========== METHOD SUMMARY =========== --> |
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| <h3>Method Summary</h3> |
| <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Method Summary table, listing methods, and an explanation"> |
| <caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd"> </span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd"> </span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd"> </span></span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colLast" scope="col">Method and Description</th> |
| </tr> |
| <tr id="i0" class="altColor"> |
| <td class="colFirst"><code>long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/io/hfile/bucket/BucketAllocator.html#allocateBlock-int-">allocateBlock</a></span>(int blockSize)</code> |
| <div class="block">Allocate a block with specified size.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/io/hfile/bucket/BucketAllocator.html#freeBlock-long-">freeBlock</a></span>(long offset)</code> |
| <div class="block">Free a block with the offset</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/io/hfile/bucket/BucketAllocator.html#freeBlock-long:A-">freeBlock</a></span>(long[] freeList)</code> </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/io/hfile/bucket/BucketAllocator.html#getBucketIndex-long-">getBucketIndex</a></span>(long offset)</code> </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../../../org/apache/hadoop/hbase/io/hfile/bucket/BucketAllocator.Bucket.html" title="class in org.apache.hadoop.hbase.io.hfile.bucket">BucketAllocator.Bucket</a>[]</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/io/hfile/bucket/BucketAllocator.html#getBuckets--">getBuckets</a></span>()</code> </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code>long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/io/hfile/bucket/BucketAllocator.html#getFreeSize--">getFreeSize</a></span>()</code> </td> |
| </tr> |
| <tr id="i6" class="altColor"> |
| <td class="colFirst"><code>(package private) <a href="../../../../../../../org/apache/hadoop/hbase/io/hfile/bucket/BucketAllocator.IndexStatistics.html" title="class in org.apache.hadoop.hbase.io.hfile.bucket">BucketAllocator.IndexStatistics</a>[]</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/io/hfile/bucket/BucketAllocator.html#getIndexStatistics--">getIndexStatistics</a></span>()</code> </td> |
| </tr> |
| <tr id="i7" class="rowColor"> |
| <td class="colFirst"><code>(package private) <a href="../../../../../../../org/apache/hadoop/hbase/io/hfile/bucket/BucketAllocator.IndexStatistics.html" title="class in org.apache.hadoop.hbase.io.hfile.bucket">BucketAllocator.IndexStatistics</a>[]</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/io/hfile/bucket/BucketAllocator.html#getIndexStatistics-org.apache.hadoop.hbase.io.hfile.bucket.BucketAllocator.IndexStatistics-">getIndexStatistics</a></span>(<a href="../../../../../../../org/apache/hadoop/hbase/io/hfile/bucket/BucketAllocator.IndexStatistics.html" title="class in org.apache.hadoop.hbase.io.hfile.bucket">BucketAllocator.IndexStatistics</a> grandTotal)</code> </td> |
| </tr> |
| <tr id="i8" class="altColor"> |
| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/Set.html?is-external=true" title="class or interface in java.util">Set</a><<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/io/hfile/bucket/BucketAllocator.html#getLeastFilledBuckets-java.util.Set-int-">getLeastFilledBuckets</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Set.html?is-external=true" title="class or interface in java.util">Set</a><<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>> excludedBuckets, |
| int bucketCount)</code> |
| <div class="block">Returns a set of indices of the buckets that are least filled |
| excluding the offsets, we also the fully free buckets for the |
| BucketSizes where everything is empty and they only have one |
| completely free bucket as a reserved</div> |
| </td> |
| </tr> |
| <tr id="i9" class="rowColor"> |
| <td class="colFirst"><code>long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/io/hfile/bucket/BucketAllocator.html#getTotalSize--">getTotalSize</a></span>()</code> </td> |
| </tr> |
| <tr id="i10" class="altColor"> |
| <td class="colFirst"><code>long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/io/hfile/bucket/BucketAllocator.html#getUsedSize--">getUsedSize</a></span>()</code> </td> |
| </tr> |
| <tr id="i11" class="rowColor"> |
| <td class="colFirst"><code>private <a href="../../../../../../../org/apache/hadoop/hbase/io/hfile/bucket/BucketAllocator.Bucket.html" title="class in org.apache.hadoop.hbase.io.hfile.bucket">BucketAllocator.Bucket</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/io/hfile/bucket/BucketAllocator.html#grabGlobalCompletelyFreeBucket--">grabGlobalCompletelyFreeBucket</a></span>()</code> </td> |
| </tr> |
| <tr id="i12" class="altColor"> |
| <td class="colFirst"><code>(package private) void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/io/hfile/bucket/BucketAllocator.html#logStatistics--">logStatistics</a></span>()</code> </td> |
| </tr> |
| <tr id="i13" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../../../org/apache/hadoop/hbase/io/hfile/bucket/BucketAllocator.BucketSizeInfo.html" title="class in org.apache.hadoop.hbase.io.hfile.bucket">BucketAllocator.BucketSizeInfo</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/io/hfile/bucket/BucketAllocator.html#roundUpToBucketSizeInfo-int-">roundUpToBucketSizeInfo</a></span>(int blockSize)</code> |
| <div class="block">Round up the given block size to bucket size, and get the corresponding |
| BucketSizeInfo</div> |
| </td> |
| </tr> |
| <tr id="i14" class="altColor"> |
| <td class="colFirst"><code>int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/io/hfile/bucket/BucketAllocator.html#sizeIndexOfAllocation-long-">sizeIndexOfAllocation</a></span>(long offset)</code> </td> |
| </tr> |
| <tr id="i15" class="rowColor"> |
| <td class="colFirst"><code>int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hbase/io/hfile/bucket/BucketAllocator.html#sizeOfAllocation-long-">sizeOfAllocation</a></span>(long offset)</code> </td> |
| </tr> |
| <tr id="i16" class="altColor"> |
| <td class="colFirst"><code><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/bucket/BucketAllocator.html#toString--">toString</a></span>()</code> </td> |
| </tr> |
| </table> |
| <ul class="blockList"> |
| <li class="blockList"><a name="methods.inherited.from.class.java.lang.Object"> |
| <!-- --> |
| </a> |
| <h3>Methods inherited from class java.lang.<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></h3> |
| <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#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> |
| </ul> |
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| <pre>private static final org.slf4j.Logger <a href="../../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/bucket/BucketAllocator.html#line.50">LOG</a></pre> |
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| <h4>DEFAULT_BUCKET_SIZES</h4> |
| <pre>private static final int[] <a href="../../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/bucket/BucketAllocator.html#line.275">DEFAULT_BUCKET_SIZES</a></pre> |
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| <pre>public static final int <a href="../../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/bucket/BucketAllocator.html#line.295">FEWEST_ITEMS_IN_BUCKET</a></pre> |
| <div class="block">So, what is the minimum amount of items we'll tolerate in a single bucket?</div> |
| <dl> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../../../../constant-values.html#org.apache.hadoop.hbase.io.hfile.bucket.BucketAllocator.FEWEST_ITEMS_IN_BUCKET">Constant Field Values</a></dd> |
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| <pre>private final int[] <a href="../../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/bucket/BucketAllocator.html#line.297">bucketSizes</a></pre> |
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| <pre>private final int <a href="../../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/bucket/BucketAllocator.html#line.298">bigItemSize</a></pre> |
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| <pre>private final long <a href="../../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/bucket/BucketAllocator.html#line.300">bucketCapacity</a></pre> |
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| <h4>buckets</h4> |
| <pre>private <a href="../../../../../../../org/apache/hadoop/hbase/io/hfile/bucket/BucketAllocator.Bucket.html" title="class in org.apache.hadoop.hbase.io.hfile.bucket">BucketAllocator.Bucket</a>[] <a href="../../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/bucket/BucketAllocator.html#line.301">buckets</a></pre> |
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| <pre>private <a href="../../../../../../../org/apache/hadoop/hbase/io/hfile/bucket/BucketAllocator.BucketSizeInfo.html" title="class in org.apache.hadoop.hbase.io.hfile.bucket">BucketAllocator.BucketSizeInfo</a>[] <a href="../../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/bucket/BucketAllocator.html#line.302">bucketSizeInfos</a></pre> |
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| <pre>private final long <a href="../../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/bucket/BucketAllocator.html#line.303">totalSize</a></pre> |
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| <pre>private transient long <a href="../../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/bucket/BucketAllocator.html#line.304">usedSize</a></pre> |
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| <h3>Constructor Detail</h3> |
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| <h4>BucketAllocator</h4> |
| <pre><a href="../../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/bucket/BucketAllocator.html#line.306">BucketAllocator</a>(long availableSpace, |
| int[] bucketSizes) |
| throws <a href="../../../../../../../org/apache/hadoop/hbase/io/hfile/bucket/BucketAllocatorException.html" title="class in org.apache.hadoop.hbase.io.hfile.bucket">BucketAllocatorException</a></pre> |
| <dl> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="../../../../../../../org/apache/hadoop/hbase/io/hfile/bucket/BucketAllocatorException.html" title="class in org.apache.hadoop.hbase.io.hfile.bucket">BucketAllocatorException</a></code></dd> |
| </dl> |
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| <h4>BucketAllocator</h4> |
| <pre><a href="../../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/bucket/BucketAllocator.html#line.342">BucketAllocator</a>(long availableSpace, |
| int[] bucketSizes, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a><<a href="../../../../../../../org/apache/hadoop/hbase/io/hfile/BlockCacheKey.html" title="class in org.apache.hadoop.hbase.io.hfile">BlockCacheKey</a>,<a href="../../../../../../../org/apache/hadoop/hbase/io/hfile/bucket/BucketEntry.html" title="class in org.apache.hadoop.hbase.io.hfile.bucket">BucketEntry</a>> map, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/atomic/LongAdder.html?is-external=true" title="class or interface in java.util.concurrent.atomic">LongAdder</a> realCacheSize) |
| throws <a href="../../../../../../../org/apache/hadoop/hbase/io/hfile/bucket/BucketAllocatorException.html" title="class in org.apache.hadoop.hbase.io.hfile.bucket">BucketAllocatorException</a></pre> |
| <div class="block">Rebuild the allocator's data structures from a persisted map.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>availableSpace</code> - capacity of cache</dd> |
| <dd><code>map</code> - A map stores the block key and BucketEntry(block's meta data |
| like offset, length)</dd> |
| <dd><code>realCacheSize</code> - cached data size statistics for bucket cache</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="../../../../../../../org/apache/hadoop/hbase/io/hfile/bucket/BucketAllocatorException.html" title="class in org.apache.hadoop.hbase.io.hfile.bucket">BucketAllocatorException</a></code></dd> |
| </dl> |
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| <h4>roundUpToBucketSizeInfo</h4> |
| <pre>public <a href="../../../../../../../org/apache/hadoop/hbase/io/hfile/bucket/BucketAllocator.BucketSizeInfo.html" title="class in org.apache.hadoop.hbase.io.hfile.bucket">BucketAllocator.BucketSizeInfo</a> <a href="../../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/bucket/BucketAllocator.html#line.285">roundUpToBucketSizeInfo</a>(int blockSize)</pre> |
| <div class="block">Round up the given block size to bucket size, and get the corresponding |
| BucketSizeInfo</div> |
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| <dl> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><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></code> in class <code><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></code></dd> |
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| <h4>getUsedSize</h4> |
| <pre>public long <a href="../../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/bucket/BucketAllocator.html#line.422">getUsedSize</a>()</pre> |
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| <h4>getFreeSize</h4> |
| <pre>public long <a href="../../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/bucket/BucketAllocator.html#line.426">getFreeSize</a>()</pre> |
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| <h4>getTotalSize</h4> |
| <pre>public long <a href="../../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/bucket/BucketAllocator.html#line.430">getTotalSize</a>()</pre> |
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| <h4>allocateBlock</h4> |
| <pre>public long <a href="../../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/bucket/BucketAllocator.html#line.441">allocateBlock</a>(int blockSize) |
| throws <a href="../../../../../../../org/apache/hadoop/hbase/io/hfile/bucket/CacheFullException.html" title="class in org.apache.hadoop.hbase.io.hfile.bucket">CacheFullException</a>, |
| <a href="../../../../../../../org/apache/hadoop/hbase/io/hfile/bucket/BucketAllocatorException.html" title="class in org.apache.hadoop.hbase.io.hfile.bucket">BucketAllocatorException</a></pre> |
| <div class="block">Allocate a block with specified size. Return the offset</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>blockSize</code> - size of block</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the offset in the IOEngine</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="../../../../../../../org/apache/hadoop/hbase/io/hfile/bucket/BucketAllocatorException.html" title="class in org.apache.hadoop.hbase.io.hfile.bucket">BucketAllocatorException</a></code></dd> |
| <dd><code><a href="../../../../../../../org/apache/hadoop/hbase/io/hfile/bucket/CacheFullException.html" title="class in org.apache.hadoop.hbase.io.hfile.bucket">CacheFullException</a></code></dd> |
| </dl> |
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| <h4>grabGlobalCompletelyFreeBucket</h4> |
| <pre>private <a href="../../../../../../../org/apache/hadoop/hbase/io/hfile/bucket/BucketAllocator.Bucket.html" title="class in org.apache.hadoop.hbase.io.hfile.bucket">BucketAllocator.Bucket</a> <a href="../../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/bucket/BucketAllocator.html#line.459">grabGlobalCompletelyFreeBucket</a>()</pre> |
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| <h4>freeBlock</h4> |
| <pre>public int <a href="../../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/bucket/BucketAllocator.html#line.472">freeBlock</a>(long offset)</pre> |
| <div class="block">Free a block with the offset</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>offset</code> - block's offset</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>size freed</dd> |
| </dl> |
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| <h4>sizeIndexOfAllocation</h4> |
| <pre>public int <a href="../../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/bucket/BucketAllocator.html#line.481">sizeIndexOfAllocation</a>(long offset)</pre> |
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| <pre>public int <a href="../../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/bucket/BucketAllocator.html#line.488">sizeOfAllocation</a>(long offset)</pre> |
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| <h4>getBuckets</h4> |
| <pre>public <a href="../../../../../../../org/apache/hadoop/hbase/io/hfile/bucket/BucketAllocator.Bucket.html" title="class in org.apache.hadoop.hbase.io.hfile.bucket">BucketAllocator.Bucket</a>[] <a href="../../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/bucket/BucketAllocator.html#line.542">getBuckets</a>()</pre> |
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| <h4>logStatistics</h4> |
| <pre>void <a href="../../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/bucket/BucketAllocator.html#line.546">logStatistics</a>()</pre> |
| </li> |
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| <h4>getIndexStatistics</h4> |
| <pre><a href="../../../../../../../org/apache/hadoop/hbase/io/hfile/bucket/BucketAllocator.IndexStatistics.html" title="class in org.apache.hadoop.hbase.io.hfile.bucket">BucketAllocator.IndexStatistics</a>[] <a href="../../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/bucket/BucketAllocator.html#line.558">getIndexStatistics</a>(<a href="../../../../../../../org/apache/hadoop/hbase/io/hfile/bucket/BucketAllocator.IndexStatistics.html" title="class in org.apache.hadoop.hbase.io.hfile.bucket">BucketAllocator.IndexStatistics</a> grandTotal)</pre> |
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| <h4>getIndexStatistics</h4> |
| <pre><a href="../../../../../../../org/apache/hadoop/hbase/io/hfile/bucket/BucketAllocator.IndexStatistics.html" title="class in org.apache.hadoop.hbase.io.hfile.bucket">BucketAllocator.IndexStatistics</a>[] <a href="../../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/bucket/BucketAllocator.html#line.569">getIndexStatistics</a>()</pre> |
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| <h4>freeBlock</h4> |
| <pre>public long <a href="../../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/bucket/BucketAllocator.html#line.576">freeBlock</a>(long[] freeList)</pre> |
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| <h4>getBucketIndex</h4> |
| <pre>public int <a href="../../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/bucket/BucketAllocator.html#line.583">getBucketIndex</a>(long offset)</pre> |
| </li> |
| </ul> |
| <a name="getLeastFilledBuckets-java.util.Set-int-"> |
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| <ul class="blockListLast"> |
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| <h4>getLeastFilledBuckets</h4> |
| <pre>public <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Set.html?is-external=true" title="class or interface in java.util">Set</a><<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>> <a href="../../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/bucket/BucketAllocator.html#line.598">getLeastFilledBuckets</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Set.html?is-external=true" title="class or interface in java.util">Set</a><<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>> excludedBuckets, |
| int bucketCount)</pre> |
| <div class="block">Returns a set of indices of the buckets that are least filled |
| excluding the offsets, we also the fully free buckets for the |
| BucketSizes where everything is empty and they only have one |
| completely free bucket as a reserved</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>excludedBuckets</code> - the buckets that need to be excluded due to |
| currently being in used</dd> |
| <dd><code>bucketCount</code> - max Number of buckets to return</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>set of bucket indices which could be used for eviction</dd> |
| </dl> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </li> |
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| <li><a href="class-use/BucketAllocator.html">Use</a></li> |
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