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<h1 title="Uses of Package org.apache.hadoop.hdfs.protocol" class="title">Uses of Package<br>org.apache.hadoop.hdfs.protocol</h1>
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<caption><span>Packages that use <a href="../../../../../org/apache/hadoop/hdfs/protocol/package-summary.html">org.apache.hadoop.hdfs.protocol</a></span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Package</th>
<th class="colLast" scope="col">Description</th>
</tr>
<tbody>
<tr class="altColor">
<td class="colFirst"><a href="#org.apache.hadoop.hdfs">org.apache.hadoop.hdfs</a></td>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="#org.apache.hadoop.hdfs.client">org.apache.hadoop.hdfs.client</a></td>
<td class="colLast">
<div class="block">This package provides the administrative APIs for HDFS.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><a href="#org.apache.hadoop.hdfs.client.impl">org.apache.hadoop.hdfs.client.impl</a></td>
<td class="colLast">
<div class="block">Licensed to the Apache Software Foundation (ASF) under one
or more contributor license agreements.</div>
</td>
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<tr class="rowColor">
<td class="colFirst"><a href="#org.apache.hadoop.hdfs.protocol">org.apache.hadoop.hdfs.protocol</a></td>
<td class="colLast">
<div class="block">Licensed to the Apache Software Foundation (ASF) under one
or more contributor license agreements.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><a href="#org.apache.hadoop.hdfs.protocolPB">org.apache.hadoop.hdfs.protocolPB</a></td>
<td class="colLast">
<div class="block">Licensed to the Apache Software Foundation (ASF) under one
or more contributor license agreements.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="#org.apache.hadoop.hdfs.web">org.apache.hadoop.hdfs.web</a></td>
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<th class="colOne" scope="col">Class and Description</th>
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<tbody>
<tr class="altColor">
<td class="colOne"><a href="../../../../../org/apache/hadoop/hdfs/protocol/class-use/BlockType.html#org.apache.hadoop.hdfs">BlockType</a>
<div class="block">Type of a block.</div>
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<th class="colOne" scope="col">Class and Description</th>
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<td class="colOne"><a href="../../../../../org/apache/hadoop/hdfs/protocol/class-use/AddErasureCodingPolicyResponse.html#org.apache.hadoop.hdfs.client">AddErasureCodingPolicyResponse</a>
<div class="block">A response of add an ErasureCoding policy.</div>
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<tr class="rowColor">
<td class="colOne"><a href="../../../../../org/apache/hadoop/hdfs/protocol/class-use/CacheDirectiveEntry.html#org.apache.hadoop.hdfs.client">CacheDirectiveEntry</a>
<div class="block">Describes a path-based cache directive entry.</div>
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<tr class="altColor">
<td class="colOne"><a href="../../../../../org/apache/hadoop/hdfs/protocol/class-use/CacheDirectiveInfo.html#org.apache.hadoop.hdfs.client">CacheDirectiveInfo</a>
<div class="block">Describes a path-based cache directive.</div>
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</tr>
<tr class="rowColor">
<td class="colOne"><a href="../../../../../org/apache/hadoop/hdfs/protocol/class-use/CachePoolEntry.html#org.apache.hadoop.hdfs.client">CachePoolEntry</a>
<div class="block">Describes a Cache Pool entry.</div>
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<td class="colOne"><a href="../../../../../org/apache/hadoop/hdfs/protocol/class-use/CachePoolInfo.html#org.apache.hadoop.hdfs.client">CachePoolInfo</a>
<div class="block">CachePoolInfo describes a cache pool.</div>
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<tr class="rowColor">
<td class="colOne"><a href="../../../../../org/apache/hadoop/hdfs/protocol/class-use/EncryptionZone.html#org.apache.hadoop.hdfs.client">EncryptionZone</a>
<div class="block">A simple class for representing an encryption zone.</div>
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<tr class="altColor">
<td class="colOne"><a href="../../../../../org/apache/hadoop/hdfs/protocol/class-use/HdfsConstants.ReencryptAction.html#org.apache.hadoop.hdfs.client">HdfsConstants.ReencryptAction</a>
<div class="block">Re-encrypt encryption zone actions.</div>
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<tr class="rowColor">
<td class="colOne"><a href="../../../../../org/apache/hadoop/hdfs/protocol/class-use/OpenFilesIterator.OpenFilesType.html#org.apache.hadoop.hdfs.client">OpenFilesIterator.OpenFilesType</a>
<div class="block">Open file types to filter the results.</div>
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<td class="colOne"><a href="../../../../../org/apache/hadoop/hdfs/protocol/class-use/ZoneReencryptionStatus.html#org.apache.hadoop.hdfs.client">ZoneReencryptionStatus</a>
<div class="block">A class representing information about re-encryption of an encryption zone.</div>
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<th class="colOne" scope="col">Class and Description</th>
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<td class="colOne"><a href="../../../../../org/apache/hadoop/hdfs/protocol/class-use/SnapshotDiffReport.html#org.apache.hadoop.hdfs.client.impl">SnapshotDiffReport</a>
<div class="block">This class represents to end users the difference between two snapshots of
the same directory, or the difference between a snapshot of the directory and
its current state.</div>
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<tr class="rowColor">
<td class="colOne"><a href="../../../../../org/apache/hadoop/hdfs/protocol/class-use/SnapshotDiffReportListing.DiffReportListingEntry.html#org.apache.hadoop.hdfs.client.impl">SnapshotDiffReportListing.DiffReportListingEntry</a>
<div class="block">Representing the full path and diff type of a file/directory where changes
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<th class="colOne" scope="col">Class and Description</th>
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<td class="colOne"><a href="../../../../../org/apache/hadoop/hdfs/protocol/class-use/BlockType.html#org.apache.hadoop.hdfs.protocol">BlockType</a>
<div class="block">Type of a block.</div>
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<td class="colOne"><a href="../../../../../org/apache/hadoop/hdfs/protocol/class-use/CacheDirectiveInfo.html#org.apache.hadoop.hdfs.protocol">CacheDirectiveInfo</a>
<div class="block">Describes a path-based cache directive.</div>
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<td class="colOne"><a href="../../../../../org/apache/hadoop/hdfs/protocol/class-use/CacheDirectiveInfo.Builder.html#org.apache.hadoop.hdfs.protocol">CacheDirectiveInfo.Builder</a>
<div class="block">A builder for creating new CacheDirectiveInfo instances.</div>
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<td class="colOne"><a href="../../../../../org/apache/hadoop/hdfs/protocol/class-use/CacheDirectiveInfo.Expiration.html#org.apache.hadoop.hdfs.protocol">CacheDirectiveInfo.Expiration</a>
<div class="block">Denotes a relative or absolute expiration time for a CacheDirective.</div>
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<td class="colOne"><a href="../../../../../org/apache/hadoop/hdfs/protocol/class-use/CacheDirectiveStats.html#org.apache.hadoop.hdfs.protocol">CacheDirectiveStats</a>
<div class="block">Describes a path-based cache directive.</div>
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<tr class="rowColor">
<td class="colOne"><a href="../../../../../org/apache/hadoop/hdfs/protocol/class-use/CacheDirectiveStats.Builder.html#org.apache.hadoop.hdfs.protocol">CacheDirectiveStats.Builder</a>&nbsp;</td>
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<td class="colOne"><a href="../../../../../org/apache/hadoop/hdfs/protocol/class-use/CachePoolInfo.html#org.apache.hadoop.hdfs.protocol">CachePoolInfo</a>
<div class="block">CachePoolInfo describes a cache pool.</div>
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<tr class="rowColor">
<td class="colOne"><a href="../../../../../org/apache/hadoop/hdfs/protocol/class-use/CachePoolStats.html#org.apache.hadoop.hdfs.protocol">CachePoolStats</a>
<div class="block">CachePoolStats describes cache pool statistics.</div>
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<td class="colOne"><a href="../../../../../org/apache/hadoop/hdfs/protocol/class-use/CachePoolStats.Builder.html#org.apache.hadoop.hdfs.protocol">CachePoolStats.Builder</a>&nbsp;</td>
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<td class="colOne"><a href="../../../../../org/apache/hadoop/hdfs/protocol/class-use/DatanodeInfo.AdminStates.html#org.apache.hadoop.hdfs.protocol">DatanodeInfo.AdminStates</a>&nbsp;</td>
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<td class="colOne"><a href="../../../../../org/apache/hadoop/hdfs/protocol/class-use/DatanodeInfo.DatanodeInfoBuilder.html#org.apache.hadoop.hdfs.protocol">DatanodeInfo.DatanodeInfoBuilder</a>
<div class="block">Building the DataNodeInfo.</div>
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<tr class="rowColor">
<td class="colOne"><a href="../../../../../org/apache/hadoop/hdfs/protocol/class-use/ECBlockGroupStats.html#org.apache.hadoop.hdfs.protocol">ECBlockGroupStats</a>
<div class="block">Get statistics pertaining to blocks of type <a href="../../../../../org/apache/hadoop/hdfs/protocol/BlockType.html#STRIPED"><code>BlockType.STRIPED</code></a>
in the filesystem.</div>
</td>
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<tr class="altColor">
<td class="colOne"><a href="../../../../../org/apache/hadoop/hdfs/protocol/class-use/HdfsConstants.DatanodeReportType.html#org.apache.hadoop.hdfs.protocol">HdfsConstants.DatanodeReportType</a>&nbsp;</td>
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<tr class="rowColor">
<td class="colOne"><a href="../../../../../org/apache/hadoop/hdfs/protocol/class-use/HdfsConstants.ReencryptAction.html#org.apache.hadoop.hdfs.protocol">HdfsConstants.ReencryptAction</a>
<div class="block">Re-encrypt encryption zone actions.</div>
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<tr class="altColor">
<td class="colOne"><a href="../../../../../org/apache/hadoop/hdfs/protocol/class-use/HdfsConstants.RollingUpgradeAction.html#org.apache.hadoop.hdfs.protocol">HdfsConstants.RollingUpgradeAction</a>&nbsp;</td>
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<td class="colOne"><a href="../../../../../org/apache/hadoop/hdfs/protocol/class-use/HdfsConstants.SafeModeAction.html#org.apache.hadoop.hdfs.protocol">HdfsConstants.SafeModeAction</a>&nbsp;</td>
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<td class="colOne"><a href="../../../../../org/apache/hadoop/hdfs/protocol/class-use/HdfsConstants.StoragePolicySatisfierMode.html#org.apache.hadoop.hdfs.protocol">HdfsConstants.StoragePolicySatisfierMode</a>
<div class="block">Storage policy satisfier service modes.</div>
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<tr class="rowColor">
<td class="colOne"><a href="../../../../../org/apache/hadoop/hdfs/protocol/class-use/HdfsConstants.UpgradeAction.html#org.apache.hadoop.hdfs.protocol">HdfsConstants.UpgradeAction</a>
<div class="block">Upgrade actions.</div>
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<tr class="altColor">
<td class="colOne"><a href="../../../../../org/apache/hadoop/hdfs/protocol/class-use/HdfsFileStatus.Flags.html#org.apache.hadoop.hdfs.protocol">HdfsFileStatus.Flags</a>
<div class="block">Set of features potentially active on an instance.</div>
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<tr class="rowColor">
<td class="colOne"><a href="../../../../../org/apache/hadoop/hdfs/protocol/class-use/OpenFilesIterator.OpenFilesType.html#org.apache.hadoop.hdfs.protocol">OpenFilesIterator.OpenFilesType</a>
<div class="block">Open file types to filter the results.</div>
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</tr>
<tr class="altColor">
<td class="colOne"><a href="../../../../../org/apache/hadoop/hdfs/protocol/class-use/ReplicatedBlockStats.html#org.apache.hadoop.hdfs.protocol">ReplicatedBlockStats</a>
<div class="block">Get statistics pertaining to blocks of type <a href="../../../../../org/apache/hadoop/hdfs/protocol/BlockType.html#CONTIGUOUS"><code>BlockType.CONTIGUOUS</code></a>
in the filesystem.</div>
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<tr class="rowColor">
<td class="colOne"><a href="../../../../../org/apache/hadoop/hdfs/protocol/class-use/SnapshotDiffReport.DiffReportEntry.html#org.apache.hadoop.hdfs.protocol">SnapshotDiffReport.DiffReportEntry</a>
<div class="block">Representing the full path and diff type of a file/directory where changes
have happened.</div>
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<tr class="altColor">
<td class="colOne"><a href="../../../../../org/apache/hadoop/hdfs/protocol/class-use/SnapshotDiffReport.DiffStats.html#org.apache.hadoop.hdfs.protocol">SnapshotDiffReport.DiffStats</a>
<div class="block">Records the stats related to Snapshot diff operation.</div>
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<td class="colOne"><a href="../../../../../org/apache/hadoop/hdfs/protocol/class-use/SnapshotDiffReport.DiffType.html#org.apache.hadoop.hdfs.protocol">SnapshotDiffReport.DiffType</a>
<div class="block">Types of the difference, which include CREATE, MODIFY, DELETE, and RENAME.</div>
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<tr class="altColor">
<td class="colOne"><a href="../../../../../org/apache/hadoop/hdfs/protocol/class-use/SnapshotDiffReportListing.DiffReportListingEntry.html#org.apache.hadoop.hdfs.protocol">SnapshotDiffReportListing.DiffReportListingEntry</a>
<div class="block">Representing the full path and diff type of a file/directory where changes
have happened.</div>
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<tr class="rowColor">
<td class="colOne"><a href="../../../../../org/apache/hadoop/hdfs/protocol/class-use/SnapshottableDirectoryStatus.html#org.apache.hadoop.hdfs.protocol">SnapshottableDirectoryStatus</a>
<div class="block">Metadata about a snapshottable directory</div>
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<tr class="altColor">
<td class="colOne"><a href="../../../../../org/apache/hadoop/hdfs/protocol/class-use/ZoneReencryptionStatus.html#org.apache.hadoop.hdfs.protocol">ZoneReencryptionStatus</a>
<div class="block">A class representing information about re-encryption of an encryption zone.</div>
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<tr class="rowColor">
<td class="colOne"><a href="../../../../../org/apache/hadoop/hdfs/protocol/class-use/ZoneReencryptionStatus.Builder.html#org.apache.hadoop.hdfs.protocol">ZoneReencryptionStatus.Builder</a>
<div class="block">Builder of <a href="../../../../../org/apache/hadoop/hdfs/protocol/ZoneReencryptionStatus.html" title="class in org.apache.hadoop.hdfs.protocol"><code>ZoneReencryptionStatus</code></a>.</div>
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<td class="colOne"><a href="../../../../../org/apache/hadoop/hdfs/protocol/class-use/ZoneReencryptionStatus.State.html#org.apache.hadoop.hdfs.protocol">ZoneReencryptionStatus.State</a>
<div class="block">State of re-encryption.</div>
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<th class="colOne" scope="col">Class and Description</th>
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<td class="colOne"><a href="../../../../../org/apache/hadoop/hdfs/protocol/class-use/AddErasureCodingPolicyResponse.html#org.apache.hadoop.hdfs.protocolPB">AddErasureCodingPolicyResponse</a>
<div class="block">A response of add an ErasureCoding policy.</div>
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<td class="colOne"><a href="../../../../../org/apache/hadoop/hdfs/protocol/class-use/BlockType.html#org.apache.hadoop.hdfs.protocolPB">BlockType</a>
<div class="block">Type of a block.</div>
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<td class="colOne"><a href="../../../../../org/apache/hadoop/hdfs/protocol/class-use/CacheDirectiveEntry.html#org.apache.hadoop.hdfs.protocolPB">CacheDirectiveEntry</a>
<div class="block">Describes a path-based cache directive entry.</div>
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<td class="colOne"><a href="../../../../../org/apache/hadoop/hdfs/protocol/class-use/CacheDirectiveInfo.html#org.apache.hadoop.hdfs.protocolPB">CacheDirectiveInfo</a>
<div class="block">Describes a path-based cache directive.</div>
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<td class="colOne"><a href="../../../../../org/apache/hadoop/hdfs/protocol/class-use/CacheDirectiveInfo.Expiration.html#org.apache.hadoop.hdfs.protocolPB">CacheDirectiveInfo.Expiration</a>
<div class="block">Denotes a relative or absolute expiration time for a CacheDirective.</div>
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<td class="colOne"><a href="../../../../../org/apache/hadoop/hdfs/protocol/class-use/CacheDirectiveStats.html#org.apache.hadoop.hdfs.protocolPB">CacheDirectiveStats</a>
<div class="block">Describes a path-based cache directive.</div>
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<tr class="altColor">
<td class="colOne"><a href="../../../../../org/apache/hadoop/hdfs/protocol/class-use/CachePoolEntry.html#org.apache.hadoop.hdfs.protocolPB">CachePoolEntry</a>
<div class="block">Describes a Cache Pool entry.</div>
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<td class="colOne"><a href="../../../../../org/apache/hadoop/hdfs/protocol/class-use/CachePoolInfo.html#org.apache.hadoop.hdfs.protocolPB">CachePoolInfo</a>
<div class="block">CachePoolInfo describes a cache pool.</div>
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<td class="colOne"><a href="../../../../../org/apache/hadoop/hdfs/protocol/class-use/CorruptFileBlocks.html#org.apache.hadoop.hdfs.protocolPB">CorruptFileBlocks</a>
<div class="block">Contains a list of paths corresponding to corrupt files and a cookie
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<td class="colOne"><a href="../../../../../org/apache/hadoop/hdfs/protocol/class-use/ECBlockGroupStats.html#org.apache.hadoop.hdfs.protocolPB">ECBlockGroupStats</a>
<div class="block">Get statistics pertaining to blocks of type <a href="../../../../../org/apache/hadoop/hdfs/protocol/BlockType.html#STRIPED"><code>BlockType.STRIPED</code></a>
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<td class="colOne"><a href="../../../../../org/apache/hadoop/hdfs/protocol/class-use/EncryptionZone.html#org.apache.hadoop.hdfs.protocolPB">EncryptionZone</a>
<div class="block">A simple class for representing an encryption zone.</div>
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<div class="block">Re-encrypt encryption zone actions.</div>
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<td class="colOne"><a href="../../../../../org/apache/hadoop/hdfs/protocol/class-use/OpenFilesIterator.OpenFilesType.html#org.apache.hadoop.hdfs.protocolPB">OpenFilesIterator.OpenFilesType</a>
<div class="block">Open file types to filter the results.</div>
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<td class="colOne"><a href="../../../../../org/apache/hadoop/hdfs/protocol/class-use/ReplicatedBlockStats.html#org.apache.hadoop.hdfs.protocolPB">ReplicatedBlockStats</a>
<div class="block">Get statistics pertaining to blocks of type <a href="../../../../../org/apache/hadoop/hdfs/protocol/BlockType.html#CONTIGUOUS"><code>BlockType.CONTIGUOUS</code></a>
in the filesystem.</div>
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<td class="colOne"><a href="../../../../../org/apache/hadoop/hdfs/protocol/class-use/SnapshotDiffReport.html#org.apache.hadoop.hdfs.protocolPB">SnapshotDiffReport</a>
<div class="block">This class represents to end users the difference between two snapshots of
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its current state.</div>
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<td class="colOne"><a href="../../../../../org/apache/hadoop/hdfs/protocol/class-use/SnapshotDiffReport.DiffReportEntry.html#org.apache.hadoop.hdfs.protocolPB">SnapshotDiffReport.DiffReportEntry</a>
<div class="block">Representing the full path and diff type of a file/directory where changes
have happened.</div>
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<td class="colOne"><a href="../../../../../org/apache/hadoop/hdfs/protocol/class-use/SnapshotDiffReportListing.html#org.apache.hadoop.hdfs.protocolPB">SnapshotDiffReportListing</a>
<div class="block">This class represents to the difference between two snapshots of
the same directory, or the difference between a snapshot of the directory and
its current state.</div>
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<td class="colOne"><a href="../../../../../org/apache/hadoop/hdfs/protocol/class-use/SnapshotDiffReportListing.DiffReportListingEntry.html#org.apache.hadoop.hdfs.protocolPB">SnapshotDiffReportListing.DiffReportListingEntry</a>
<div class="block">Representing the full path and diff type of a file/directory where changes
have happened.</div>
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<tr class="rowColor">
<td class="colOne"><a href="../../../../../org/apache/hadoop/hdfs/protocol/class-use/SnapshottableDirectoryStatus.html#org.apache.hadoop.hdfs.protocolPB">SnapshottableDirectoryStatus</a>
<div class="block">Metadata about a snapshottable directory</div>
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<td class="colOne"><a href="../../../../../org/apache/hadoop/hdfs/protocol/class-use/ZoneReencryptionStatus.html#org.apache.hadoop.hdfs.protocolPB">ZoneReencryptionStatus</a>
<div class="block">A class representing information about re-encryption of an encryption zone.</div>
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<div class="block">This class represents to end users the difference between two snapshots of
the same directory, or the difference between a snapshot of the directory and
its current state.</div>
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