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apache / hadoop-site / 952d547359cafef280f0a0324055741b2ed55be1 / . / content / docs / r3.3.1 / hadoop-yarn / hadoop-yarn-server / hadoop-yarn-server-nodemanager / apidocs / org / apache / hadoop / yarn / server / nodemanager / security / NMContainerTokenSecretManager.html
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<div class="subTitle">org.apache.hadoop.yarn.server.nodemanager.security</div>
<h2 title="Class NMContainerTokenSecretManager" class="title">Class NMContainerTokenSecretManager</h2>
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<li>org.apache.hadoop.security.token.SecretManager&lt;org.apache.hadoop.yarn.security.ContainerTokenIdentifier&gt;</li>
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<li>org.apache.hadoop.yarn.server.security.BaseContainerTokenSecretManager</li>
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<li>org.apache.hadoop.yarn.server.nodemanager.security.NMContainerTokenSecretManager</li>
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<pre>public class <span class="typeNameLabel">NMContainerTokenSecretManager</span>
extends org.apache.hadoop.yarn.server.security.BaseContainerTokenSecretManager</pre>
<div class="block">The NM maintains only two master-keys. The current key that RM knows and the
key from the previous rolling-interval.</div>
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<h3>Nested classes/interfaces inherited from class&nbsp;org.apache.hadoop.security.token.SecretManager</h3>
<code>org.apache.hadoop.security.token.SecretManager.InvalidToken</code></li>
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<h3>Fields inherited from class&nbsp;org.apache.hadoop.yarn.server.security.BaseContainerTokenSecretManager</h3>
<code>containerTokenExpiryInterval, currentMasterKey, readLock, readWriteLock, serialNo, writeLock</code></li>
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/yarn/server/nodemanager/security/NMContainerTokenSecretManager.html#NMContainerTokenSecretManager-org.apache.hadoop.conf.Configuration-">NMContainerTokenSecretManager</a></span>(org.apache.hadoop.conf.Configuration&nbsp;conf)</code>&nbsp;</td>
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<tr class="rowColor">
<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/yarn/server/nodemanager/security/NMContainerTokenSecretManager.html#NMContainerTokenSecretManager-org.apache.hadoop.conf.Configuration-org.apache.hadoop.yarn.server.nodemanager.recovery.NMStateStoreService-">NMContainerTokenSecretManager</a></span>(org.apache.hadoop.conf.Configuration&nbsp;conf,
<a href="../../../../../../../org/apache/hadoop/yarn/server/nodemanager/recovery/NMStateStoreService.html" title="class in org.apache.hadoop.yarn.server.nodemanager.recovery">NMStateStoreService</a>&nbsp;stateStore)</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/yarn/server/nodemanager/security/NMContainerTokenSecretManager.html#isValidStartContainerRequest-org.apache.hadoop.yarn.security.ContainerTokenIdentifier-">isValidStartContainerRequest</a></span>(org.apache.hadoop.yarn.security.ContainerTokenIdentifier&nbsp;containerTokenIdentifier)</code>
<div class="block">Container will be remembered based on expiration time of the container
token used for starting the container.</div>
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<tr id="i1" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/yarn/server/nodemanager/security/NMContainerTokenSecretManager.html#recover--">recover</a></span>()</code>&nbsp;</td>
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<td class="colFirst"><code>protected void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/yarn/server/nodemanager/security/NMContainerTokenSecretManager.html#removeAnyContainerTokenIfExpired--">removeAnyContainerTokenIfExpired</a></span>()</code>&nbsp;</td>
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<td class="colFirst"><code>byte[]</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/yarn/server/nodemanager/security/NMContainerTokenSecretManager.html#retrievePassword-org.apache.hadoop.yarn.security.ContainerTokenIdentifier-">retrievePassword</a></span>(org.apache.hadoop.yarn.security.ContainerTokenIdentifier&nbsp;identifier)</code>
<div class="block">Override of this is to validate ContainerTokens generated by using
different <code>MasterKey</code>s.</div>
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</tr>
<tr id="i4" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/yarn/server/nodemanager/security/NMContainerTokenSecretManager.html#setMasterKey-org.apache.hadoop.yarn.server.api.records.MasterKey-">setMasterKey</a></span>(org.apache.hadoop.yarn.server.api.records.MasterKey&nbsp;masterKeyRecord)</code>
<div class="block">Used by NodeManagers to create a token-secret-manager with the key obtained
from the RM.</div>
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</tr>
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<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/yarn/server/nodemanager/security/NMContainerTokenSecretManager.html#setNodeId-org.apache.hadoop.yarn.api.records.NodeId-">setNodeId</a></span>(org.apache.hadoop.yarn.api.records.NodeId&nbsp;nodeId)</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/yarn/server/nodemanager/security/NMContainerTokenSecretManager.html#startContainerSuccessful-org.apache.hadoop.yarn.security.ContainerTokenIdentifier-">startContainerSuccessful</a></span>(org.apache.hadoop.yarn.security.ContainerTokenIdentifier&nbsp;tokenId)</code>
<div class="block">Container start has gone through.</div>
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<h3>Methods inherited from class&nbsp;org.apache.hadoop.yarn.server.security.BaseContainerTokenSecretManager</h3>
<code>createIdentifier, createNewMasterKey, createPassword, getCurrentKey, retrievePasswordInternal</code></li>
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<h3>Methods inherited from class&nbsp;org.apache.hadoop.security.token.SecretManager</h3>
<code>checkAvailableForRead, createPassword, createSecretKey, generateSecret, retriableRetrievePassword</code></li>
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<h4>NMContainerTokenSecretManager</h4>
<pre>public&nbsp;NMContainerTokenSecretManager(org.apache.hadoop.conf.Configuration&nbsp;conf)</pre>
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<h4>NMContainerTokenSecretManager</h4>
<pre>public&nbsp;NMContainerTokenSecretManager(org.apache.hadoop.conf.Configuration&nbsp;conf,
<a href="../../../../../../../org/apache/hadoop/yarn/server/nodemanager/recovery/NMStateStoreService.html" title="class in org.apache.hadoop.yarn.server.nodemanager.recovery">NMStateStoreService</a>&nbsp;stateStore)</pre>
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<h4>recover</h4>
<pre>public&nbsp;void&nbsp;recover()
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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<h4>setMasterKey</h4>
<pre>@InterfaceAudience.Private
public&nbsp;void&nbsp;setMasterKey(org.apache.hadoop.yarn.server.api.records.MasterKey&nbsp;masterKeyRecord)</pre>
<div class="block">Used by NodeManagers to create a token-secret-manager with the key obtained
from the RM. This can happen during registration or when the RM rolls the
master-key and signals the NM.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>masterKeyRecord</code> - </dd>
</dl>
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<h4>retrievePassword</h4>
<pre>public&nbsp;byte[]&nbsp;retrievePassword(org.apache.hadoop.yarn.security.ContainerTokenIdentifier&nbsp;identifier)
throws org.apache.hadoop.security.token.SecretManager.InvalidToken</pre>
<div class="block">Override of this is to validate ContainerTokens generated by using
different <code>MasterKey</code>s.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code>retrievePassword</code>&nbsp;in class&nbsp;<code>org.apache.hadoop.yarn.server.security.BaseContainerTokenSecretManager</code></dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>org.apache.hadoop.security.token.SecretManager.InvalidToken</code></dd>
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<h4>startContainerSuccessful</h4>
<pre>public&nbsp;void&nbsp;startContainerSuccessful(org.apache.hadoop.yarn.security.ContainerTokenIdentifier&nbsp;tokenId)</pre>
<div class="block">Container start has gone through. We need to store the containerId in order
to block future container start requests with same container token. This
container token needs to be saved till its container token expires.</div>
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<h4>removeAnyContainerTokenIfExpired</h4>
<pre>protected&nbsp;void&nbsp;removeAnyContainerTokenIfExpired()</pre>
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<h4>isValidStartContainerRequest</h4>
<pre>public&nbsp;boolean&nbsp;isValidStartContainerRequest(org.apache.hadoop.yarn.security.ContainerTokenIdentifier&nbsp;containerTokenIdentifier)</pre>
<div class="block">Container will be remembered based on expiration time of the container
token used for starting the container. It is safe to use expiration time
as there is one to many mapping between expiration time and containerId.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>true if the current token identifier is not present in cache.</dd>
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<h4>setNodeId</h4>
<pre>public&nbsp;void&nbsp;setNodeId(org.apache.hadoop.yarn.api.records.NodeId&nbsp;nodeId)</pre>
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