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<div class="subTitle">org.apache.hadoop.fs</div>
<h2 title="Class FileSystem.Statistics.StatisticsData" class="title">Class FileSystem.Statistics.StatisticsData</h2>
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<pre>public static class <span class="typeNameLabel">FileSystem.Statistics.StatisticsData</span>
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">Statistics data.
There is only a single writer to thread-local StatisticsData objects.
Hence, volatile is adequate here-- we do not need AtomicLong or similar
to prevent lost updates.
The Java specification guarantees that updates to volatile longs will
be perceived as atomic with respect to other threads, which is all we
need.</div>
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/fs/FileSystem.Statistics.StatisticsData.html#StatisticsData--">StatisticsData</a></span>()</code>&nbsp;</td>
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<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/fs/FileSystem.Statistics.StatisticsData.html#getBytesRead--">getBytesRead</a></span>()</code>&nbsp;</td>
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<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/fs/FileSystem.Statistics.StatisticsData.html#getBytesReadDistanceOfFiveOrLarger--">getBytesReadDistanceOfFiveOrLarger</a></span>()</code>&nbsp;</td>
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<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/fs/FileSystem.Statistics.StatisticsData.html#getBytesReadDistanceOfOneOrTwo--">getBytesReadDistanceOfOneOrTwo</a></span>()</code>&nbsp;</td>
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<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/fs/FileSystem.Statistics.StatisticsData.html#getBytesReadDistanceOfThreeOrFour--">getBytesReadDistanceOfThreeOrFour</a></span>()</code>&nbsp;</td>
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<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/fs/FileSystem.Statistics.StatisticsData.html#getBytesWritten--">getBytesWritten</a></span>()</code>&nbsp;</td>
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<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/fs/FileSystem.Statistics.StatisticsData.html#getLargeReadOps--">getLargeReadOps</a></span>()</code>&nbsp;</td>
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<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/fs/FileSystem.Statistics.StatisticsData.html#getReadOps--">getReadOps</a></span>()</code>&nbsp;</td>
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<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/fs/FileSystem.Statistics.StatisticsData.html#getWriteOps--">getWriteOps</a></span>()</code>&nbsp;</td>
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<pre>public&nbsp;StatisticsData()</pre>
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<pre>public&nbsp;<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>&nbsp;toString()</pre>
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