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<div class="subTitle">org.apache.hadoop.hdfs.tools.offlineImageViewer</div>
<h2 title="Class PBImageCorruptionDetector" class="title">Class PBImageCorruptionDetector</h2>
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<li>org.apache.hadoop.hdfs.tools.offlineImageViewer.PBImageCorruptionDetector</li>
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<pre>public class <span class="typeNameLabel">PBImageCorruptionDetector</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">The PBImageCorruptionDetector detects corruptions in the image.
It produces a file with the found issues similar to the Delimited
processor. The default delimiter is tab, as this is an unlikely value
to be included in an inode path. The delimiter value can be changed
via the constructor.
It looks for the following kinds of corruptions:
- an INode id is mentioned in the INodeDirectorySection, but not present
in the INodeSection (corrupt INode case)
- an INode has children, but at least one of them is corrupted
(missing children case)
If multiple layers of directory structure are damaged then it is possible
that an INode is corrupted and also having corrupted children.
Note that the OIV DetectCorruption processor check is not exhaustive,
and only catches the corruptions like above. This processor may be up to
extension in the future when new aspects of corruption are found.</div>
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<caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd">&nbsp;</span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd">&nbsp;</span></span></caption>
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<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Method and Description</th>
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<tr id="i0" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hdfs/tools/offlineImageViewer/PBImageCorruptionDetector.html#afterOutput--">afterOutput</a></span>()</code>
<div class="block">Method called at the end of output() phase after all the inodes
with known parentPath has been printed out.</div>
</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code>protected void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hdfs/tools/offlineImageViewer/PBImageCorruptionDetector.html#buildNamespace-java.io.InputStream-java.util.List-">buildNamespace</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/io/InputStream.html?is-external=true" title="class or interface in java.io">InputStream</a>&nbsp;in,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Long.html?is-external=true" title="class or interface in java.lang">Long</a>&gt;&nbsp;refIdList)</code>
<div class="block">Scan the INodeDirectory section to construct the namespace.</div>
</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code>protected void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hdfs/tools/offlineImageViewer/PBImageCorruptionDetector.html#checkNode-org.apache.hadoop.hdfs.server.namenode.FsImageProto.INodeSection.INode-java.util.concurrent.atomic.AtomicInteger-">checkNode</a></span>(<a href="../../../../../../org/apache/hadoop/hdfs/server/namenode/FsImageProto.INodeSection.INode.html" title="class in org.apache.hadoop.hdfs.server.namenode">FsImageProto.INodeSection.INode</a>&nbsp;p,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/atomic/AtomicInteger.html?is-external=true" title="class or interface in java.util.concurrent.atomic">AtomicInteger</a>&nbsp;numDirs)</code>
<div class="block">Checks the inode (saves if directory), and counts them.</div>
</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hdfs/tools/offlineImageViewer/PBImageCorruptionDetector.html#close--">close</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i4" 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/hdfs/tools/offlineImageViewer/PBImageCorruptionDetector.html#getEntry-java.lang.String-org.apache.hadoop.hdfs.server.namenode.FsImageProto.INodeSection.INode-">getEntry</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;parentPath,
<a href="../../../../../../org/apache/hadoop/hdfs/server/namenode/FsImageProto.INodeSection.INode.html" title="class in org.apache.hadoop.hdfs.server.namenode">FsImageProto.INodeSection.INode</a>&nbsp;inode)</code>
<div class="block">Get text output for the given inode.</div>
</td>
</tr>
<tr id="i5" class="rowColor">
<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/hdfs/tools/offlineImageViewer/PBImageCorruptionDetector.html#getHeader--">getHeader</a></span>()</code>
<div class="block">Get text output for the header line.</div>
</td>
</tr>
<tr id="i6" class="altColor">
<td class="colFirst"><code>protected org.apache.hadoop.fs.permission.PermissionStatus</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hdfs/tools/offlineImageViewer/PBImageCorruptionDetector.html#getPermission-long-">getPermission</a></span>(long&nbsp;perm)</code>&nbsp;</td>
</tr>
<tr id="i7" class="rowColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hdfs/tools/offlineImageViewer/PBImageCorruptionDetector.html#getStoragePolicy-org.apache.hadoop.hdfs.server.namenode.FsImageProto.INodeSection.XAttrFeatureProto-">getStoragePolicy</a></span>(<a href="../../../../../../org/apache/hadoop/hdfs/server/namenode/FsImageProto.INodeSection.XAttrFeatureProto.html" title="class in org.apache.hadoop.hdfs.server.namenode">FsImageProto.INodeSection.XAttrFeatureProto</a>&nbsp;xattrFeatureProto)</code>&nbsp;</td>
</tr>
<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/tools/offlineImageViewer/PBImageCorruptionDetector.html#visit-java.io.RandomAccessFile-">visit</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/io/RandomAccessFile.html?is-external=true" title="class or interface in java.io">RandomAccessFile</a>&nbsp;file)</code>&nbsp;</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>Method Detail</h3>
<a name="getHeader--">
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<h4>getHeader</h4>
<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;getHeader()</pre>
<div class="block">Get text output for the header line.</div>
</li>
</ul>
<a name="getEntry-java.lang.String-org.apache.hadoop.hdfs.server.namenode.FsImageProto.INodeSection.INode-">
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<h4>getEntry</h4>
<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;getEntry(<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;parentPath,
<a href="../../../../../../org/apache/hadoop/hdfs/server/namenode/FsImageProto.INodeSection.INode.html" title="class in org.apache.hadoop.hdfs.server.namenode">FsImageProto.INodeSection.INode</a>&nbsp;inode)</pre>
<div class="block">Get text output for the given inode.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>parentPath</code> - the path of parent directory</dd>
<dd><code>inode</code> - the INode object to output.</dd>
</dl>
</li>
</ul>
<a name="checkNode-org.apache.hadoop.hdfs.server.namenode.FsImageProto.INodeSection.INode-java.util.concurrent.atomic.AtomicInteger-">
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<h4>checkNode</h4>
<pre>protected&nbsp;void&nbsp;checkNode(<a href="../../../../../../org/apache/hadoop/hdfs/server/namenode/FsImageProto.INodeSection.INode.html" title="class in org.apache.hadoop.hdfs.server.namenode">FsImageProto.INodeSection.INode</a>&nbsp;p,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/atomic/AtomicInteger.html?is-external=true" title="class or interface in java.util.concurrent.atomic">AtomicInteger</a>&nbsp;numDirs)
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>
<div class="block">Checks the inode (saves if directory), and counts them. Can be overridden
if additional steps are taken when iterating through INodeSection.</div>
<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>
</dl>
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<a name="buildNamespace-java.io.InputStream-java.util.List-">
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<h4>buildNamespace</h4>
<pre>protected&nbsp;void&nbsp;buildNamespace(<a href="https://docs.oracle.com/javase/8/docs/api/java/io/InputStream.html?is-external=true" title="class or interface in java.io">InputStream</a>&nbsp;in,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Long.html?is-external=true" title="class or interface in java.lang">Long</a>&gt;&nbsp;refIdList)
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>
<div class="block">Scan the INodeDirectory section to construct the namespace.</div>
<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>
</dl>
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<h4>afterOutput</h4>
<pre>public&nbsp;void&nbsp;afterOutput()
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>
<div class="block">Method called at the end of output() phase after all the inodes
with known parentPath has been printed out. Can be used to print
additional data depending on the written inodes.</div>
<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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<h4>close</h4>
<pre>public&nbsp;void&nbsp;close()
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="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/Closeable.html?is-external=true#close--" title="class or interface in java.io">close</a></code>&nbsp;in interface&nbsp;<code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/Closeable.html?is-external=true" title="class or interface in java.io">Closeable</a></code></dd>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/AutoCloseable.html?is-external=true#close--" title="class or interface in java.lang">close</a></code>&nbsp;in interface&nbsp;<code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/AutoCloseable.html?is-external=true" title="class or interface in java.lang">AutoCloseable</a></code></dd>
<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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<a name="visit-java.io.RandomAccessFile-">
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<h4>visit</h4>
<pre>public&nbsp;void&nbsp;visit(<a href="https://docs.oracle.com/javase/8/docs/api/java/io/RandomAccessFile.html?is-external=true" title="class or interface in java.io">RandomAccessFile</a>&nbsp;file)
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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<h4>getPermission</h4>
<pre>protected&nbsp;org.apache.hadoop.fs.permission.PermissionStatus&nbsp;getPermission(long&nbsp;perm)</pre>
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<h4>getStoragePolicy</h4>
<pre>public&nbsp;int&nbsp;getStoragePolicy(<a href="../../../../../../org/apache/hadoop/hdfs/server/namenode/FsImageProto.INodeSection.XAttrFeatureProto.html" title="class in org.apache.hadoop.hdfs.server.namenode">FsImageProto.INodeSection.XAttrFeatureProto</a>&nbsp;xattrFeatureProto)</pre>
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