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<div class="subTitle">org.apache.hadoop.hdfs.server.namenode</div>
<h2 title="Class EncryptionZoneManager" class="title">Class EncryptionZoneManager</h2>
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<pre>public class <span class="typeNameLabel">EncryptionZoneManager</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">Manages the list of encryption zones in the filesystem.
<p>
The EncryptionZoneManager has its own lock, but relies on the FSDirectory
lock being held for many operations. The FSDirectory lock should not be
taken if the manager lock is already held.</div>
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<td class="colFirst"><code>static org.apache.hadoop.fs.BatchedRemoteIterator.BatchedListEntries&lt;org.apache.hadoop.hdfs.protocol.ZoneReencryptionStatus&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hdfs/server/namenode/EncryptionZoneManager.html#EMPTY_LIST">EMPTY_LIST</a></span></code>&nbsp;</td>
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<td class="colFirst"><code>static org.slf4j.Logger</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hdfs/server/namenode/EncryptionZoneManager.html#LOG">LOG</a></span></code>&nbsp;</td>
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hdfs/server/namenode/EncryptionZoneManager.html#EncryptionZoneManager-org.apache.hadoop.hdfs.server.namenode.FSDirectory-org.apache.hadoop.conf.Configuration-">EncryptionZoneManager</a></span>(org.apache.hadoop.hdfs.server.namenode.FSDirectory&nbsp;dir,
org.apache.hadoop.conf.Configuration&nbsp;conf)</code>
<div class="block">Construct a new EncryptionZoneManager.</div>
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<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hdfs/server/namenode/EncryptionZoneManager.html#getNumEncryptionZones--">getNumEncryptionZones</a></span>()</code>&nbsp;</td>
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<tr id="i1" class="rowColor">
<td class="colFirst"><code>org.apache.hadoop.hdfs.protocol.ReencryptionStatus</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hdfs/server/namenode/EncryptionZoneManager.html#getReencryptionStatus--">getReencryptionStatus</a></span>()</code>&nbsp;</td>
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<tr id="i2" class="altColor">
<td class="colFirst"><code>org.apache.hadoop.hdfs.protocol.ZoneReencryptionStatus</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hdfs/server/namenode/EncryptionZoneManager.html#getZoneStatus-java.lang.String-">getZoneStatus</a></span>(<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;zone)</code>&nbsp;</td>
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<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hdfs/server/namenode/EncryptionZoneManager.html#hasCreatedEncryptionZone--">hasCreatedEncryptionZone</a></span>()</code>&nbsp;</td>
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<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hdfs/server/namenode/EncryptionZoneManager.html#pauseForTestingAfterNthCheckpoint-java.lang.String-int-">pauseForTestingAfterNthCheckpoint</a></span>(<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;zone,
int&nbsp;count)</code>&nbsp;</td>
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<tr id="i5" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hdfs/server/namenode/EncryptionZoneManager.html#pauseForTestingAfterNthSubmission-int-">pauseForTestingAfterNthSubmission</a></span>(int&nbsp;count)</code>&nbsp;</td>
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<tr id="i6" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hdfs/server/namenode/EncryptionZoneManager.html#pauseReencryptForTesting--">pauseReencryptForTesting</a></span>()</code>&nbsp;</td>
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<tr id="i7" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hdfs/server/namenode/EncryptionZoneManager.html#pauseReencryptUpdaterForTesting--">pauseReencryptUpdaterForTesting</a></span>()</code>&nbsp;</td>
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<tr id="i8" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hdfs/server/namenode/EncryptionZoneManager.html#resetMetricsForTesting--">resetMetricsForTesting</a></span>()</code>&nbsp;</td>
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<tr id="i9" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hdfs/server/namenode/EncryptionZoneManager.html#resumeReencryptForTesting--">resumeReencryptForTesting</a></span>()</code>&nbsp;</td>
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<tr id="i10" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hdfs/server/namenode/EncryptionZoneManager.html#resumeReencryptUpdaterForTesting--">resumeReencryptUpdaterForTesting</a></span>()</code>&nbsp;</td>
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<pre>public static final&nbsp;org.slf4j.Logger LOG</pre>
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<pre>public static final&nbsp;org.apache.hadoop.fs.BatchedRemoteIterator.BatchedListEntries&lt;org.apache.hadoop.hdfs.protocol.ZoneReencryptionStatus&gt; EMPTY_LIST</pre>
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<h4>EncryptionZoneManager</h4>
<pre>public&nbsp;EncryptionZoneManager(org.apache.hadoop.hdfs.server.namenode.FSDirectory&nbsp;dir,
org.apache.hadoop.conf.Configuration&nbsp;conf)</pre>
<div class="block">Construct a new EncryptionZoneManager.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>dir</code> - Enclosing FSDirectory</dd>
</dl>
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<a name="pauseReencryptForTesting--">
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<pre>public&nbsp;void&nbsp;pauseReencryptForTesting()</pre>
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<h4>resumeReencryptForTesting</h4>
<pre>public&nbsp;void&nbsp;resumeReencryptForTesting()</pre>
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<pre>public&nbsp;void&nbsp;pauseForTestingAfterNthSubmission(int&nbsp;count)</pre>
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<pre>public&nbsp;void&nbsp;pauseReencryptUpdaterForTesting()</pre>
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<pre>public&nbsp;void&nbsp;resumeReencryptUpdaterForTesting()</pre>
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<pre>public&nbsp;void&nbsp;pauseForTestingAfterNthCheckpoint(<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;zone,
int&nbsp;count)
throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre>
<dl>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd>
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<pre>public&nbsp;void&nbsp;resetMetricsForTesting()</pre>
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<h4>getReencryptionStatus</h4>
<pre>public&nbsp;org.apache.hadoop.hdfs.protocol.ReencryptionStatus&nbsp;getReencryptionStatus()</pre>
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<h4>getZoneStatus</h4>
<pre>public&nbsp;org.apache.hadoop.hdfs.protocol.ZoneReencryptionStatus&nbsp;getZoneStatus(<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;zone)
throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre>
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<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd>
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<h4>getNumEncryptionZones</h4>
<pre>public&nbsp;int&nbsp;getNumEncryptionZones()</pre>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>number of encryption zones.</dd>
</dl>
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<h4>hasCreatedEncryptionZone</h4>
<pre>public&nbsp;boolean&nbsp;hasCreatedEncryptionZone()</pre>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>Whether there has been any attempt to create an encryption zone in
the cluster at all. If not, it is safe to quickly return null when
checking the encryption information of any file or directory in the
cluster.</dd>
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