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<div class="subTitle">org.apache.hadoop.hbase.backup.impl</div>
<h2 title="Class BackupManager" class="title">Class BackupManager</h2>
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<li>org.apache.hadoop.hbase.backup.impl.BackupManager</li>
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<dt>All Implemented Interfaces:</dt>
<dd><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>, <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></dd>
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<dl>
<dt>Direct Known Subclasses:</dt>
<dd><a href="../../../../../../org/apache/hadoop/hbase/backup/impl/IncrementalBackupManager.html" title="class in org.apache.hadoop.hbase.backup.impl">IncrementalBackupManager</a></dd>
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<pre>@InterfaceAudience.Private
public class <a href="../../../../../../src-html/org/apache/hadoop/hbase/backup/impl/BackupManager.html#line.61">BackupManager</a>
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>
implements <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></pre>
<div class="block">Handles backup requests, creates backup info records in backup system table to keep track of
backup sessions, dispatches backup request.</div>
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<h3>Field Summary</h3>
<table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Field Summary table, listing fields, and an explanation">
<caption><span>Fields</span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Field and Description</th>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static <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/hbase/backup/impl/BackupManager.html#BACKUP_EXCLUSIVE_OPERATION_TIMEOUT_SECONDS_KEY">BACKUP_EXCLUSIVE_OPERATION_TIMEOUT_SECONDS_KEY</a></span></code>&nbsp;</td>
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<tr class="rowColor">
<td class="colFirst"><code>protected <a href="../../../../../../org/apache/hadoop/hbase/backup/BackupInfo.html" title="class in org.apache.hadoop.hbase.backup">BackupInfo</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/backup/impl/BackupManager.html#backupInfo">backupInfo</a></span></code>&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>protected org.apache.hadoop.conf.Configuration</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/backup/impl/BackupManager.html#conf">conf</a></span></code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>protected <a href="../../../../../../org/apache/hadoop/hbase/client/Connection.html" title="interface in org.apache.hadoop.hbase.client">Connection</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/backup/impl/BackupManager.html#conn">conn</a></span></code>&nbsp;</td>
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<tr class="altColor">
<td class="colFirst"><code>private static int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/backup/impl/BackupManager.html#DEFAULT_BACKUP_EXCLUSIVE_OPERATION_TIMEOUT">DEFAULT_BACKUP_EXCLUSIVE_OPERATION_TIMEOUT</a></span></code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>private static org.slf4j.Logger</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/backup/impl/BackupManager.html#LOG">LOG</a></span></code>&nbsp;</td>
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<tr class="altColor">
<td class="colFirst"><code>protected <a href="../../../../../../org/apache/hadoop/hbase/backup/impl/BackupSystemTable.html" title="class in org.apache.hadoop.hbase.backup.impl">BackupSystemTable</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/backup/impl/BackupManager.html#systemTable">systemTable</a></span></code>&nbsp;</td>
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<th class="colOne" scope="col">Constructor and Description</th>
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/backup/impl/BackupManager.html#BackupManager-org.apache.hadoop.hbase.client.Connection-org.apache.hadoop.conf.Configuration-">BackupManager</a></span>(<a href="../../../../../../org/apache/hadoop/hbase/client/Connection.html" title="interface in org.apache.hadoop.hbase.client">Connection</a>&nbsp;conn,
org.apache.hadoop.conf.Configuration&nbsp;conf)</code>
<div class="block">Backup manager constructor.</div>
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<caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd">&nbsp;</span></span><span id="t1" class="tableTab"><span><a href="javascript:show(1);">Static Methods</a></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>
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<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/backup/impl/BackupManager.html#addIncrementalBackupTableSet-java.util.Set-">addIncrementalBackupTableSet</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Set.html?is-external=true" title="class or interface in java.util">Set</a>&lt;<a href="../../../../../../org/apache/hadoop/hbase/TableName.html" title="class in org.apache.hadoop.hbase">TableName</a>&gt;&nbsp;tables)</code>
<div class="block">Adds set of tables to overall incremental backup table set</div>
</td>
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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/hbase/backup/impl/BackupManager.html#close--">close</a></span>()</code>
<div class="block">Stop all the work of backup.</div>
</td>
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<tr id="i2" class="altColor">
<td class="colFirst"><code><a href="../../../../../../org/apache/hadoop/hbase/backup/BackupInfo.html" title="class in org.apache.hadoop.hbase.backup">BackupInfo</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/backup/impl/BackupManager.html#createBackupInfo-java.lang.String-org.apache.hadoop.hbase.backup.BackupType-java.util.List-java.lang.String-int-long-">createBackupInfo</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;backupId,
<a href="../../../../../../org/apache/hadoop/hbase/backup/BackupType.html" title="enum in org.apache.hadoop.hbase.backup">BackupType</a>&nbsp;type,
<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="../../../../../../org/apache/hadoop/hbase/TableName.html" title="class in org.apache.hadoop.hbase">TableName</a>&gt;&nbsp;tableList,
<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;targetRootDir,
int&nbsp;workers,
long&nbsp;bandwidth)</code>
<div class="block">Creates a backup info based on input backup request.</div>
</td>
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<tr id="i3" class="rowColor">
<td class="colFirst"><code>static void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/backup/impl/BackupManager.html#decorateMasterConfiguration-org.apache.hadoop.conf.Configuration-">decorateMasterConfiguration</a></span>(org.apache.hadoop.conf.Configuration&nbsp;conf)</code>
<div class="block">This method modifies the master's configuration in order to inject backup-related features
(TESTs only)</div>
</td>
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<tr id="i4" class="altColor">
<td class="colFirst"><code>static void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/backup/impl/BackupManager.html#decorateRegionServerConfiguration-org.apache.hadoop.conf.Configuration-">decorateRegionServerConfiguration</a></span>(org.apache.hadoop.conf.Configuration&nbsp;conf)</code>
<div class="block">This method modifies the Region Server configuration in order to inject backup-related features
TESTs only.</div>
</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/hbase/backup/impl/BackupManager.html#deleteBulkLoadedRows-java.util.List-">deleteBulkLoadedRows</a></span>(<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;byte[]&gt;&nbsp;rows)</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/hbase/backup/impl/BackupManager.html#finishBackupSession--">finishBackupSession</a></span>()</code>
<div class="block">Finishes active backup session</div>
</td>
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<tr id="i7" class="rowColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/ArrayList.html?is-external=true" title="class or interface in java.util">ArrayList</a>&lt;<a href="../../../../../../org/apache/hadoop/hbase/backup/impl/BackupManifest.BackupImage.html" title="class in org.apache.hadoop.hbase.backup.impl">BackupManifest.BackupImage</a>&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/backup/impl/BackupManager.html#getAncestors-org.apache.hadoop.hbase.backup.BackupInfo-">getAncestors</a></span>(<a href="../../../../../../org/apache/hadoop/hbase/backup/BackupInfo.html" title="class in org.apache.hadoop.hbase.backup">BackupInfo</a>&nbsp;backupInfo)</code>
<div class="block">Get direct ancestors of the current backup.</div>
</td>
</tr>
<tr id="i8" class="altColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/ArrayList.html?is-external=true" title="class or interface in java.util">ArrayList</a>&lt;<a href="../../../../../../org/apache/hadoop/hbase/backup/impl/BackupManifest.BackupImage.html" title="class in org.apache.hadoop.hbase.backup.impl">BackupManifest.BackupImage</a>&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/backup/impl/BackupManager.html#getAncestors-org.apache.hadoop.hbase.backup.BackupInfo-org.apache.hadoop.hbase.TableName-">getAncestors</a></span>(<a href="../../../../../../org/apache/hadoop/hbase/backup/BackupInfo.html" title="class in org.apache.hadoop.hbase.backup">BackupInfo</a>&nbsp;backupInfo,
<a href="../../../../../../org/apache/hadoop/hbase/TableName.html" title="class in org.apache.hadoop.hbase">TableName</a>&nbsp;table)</code>
<div class="block">Get the direct ancestors of this backup for one table involved.</div>
</td>
</tr>
<tr id="i9" class="rowColor">
<td class="colFirst"><code><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="../../../../../../org/apache/hadoop/hbase/backup/BackupInfo.html" title="class in org.apache.hadoop.hbase.backup">BackupInfo</a>&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/backup/impl/BackupManager.html#getBackupHistory--">getBackupHistory</a></span>()</code>
<div class="block">Get all completed backup information (in desc order by time)</div>
</td>
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<tr id="i10" class="altColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/ArrayList.html?is-external=true" title="class or interface in java.util">ArrayList</a>&lt;<a href="../../../../../../org/apache/hadoop/hbase/backup/BackupInfo.html" title="class in org.apache.hadoop.hbase.backup">BackupInfo</a>&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/backup/impl/BackupManager.html#getBackupHistory-boolean-">getBackupHistory</a></span>(boolean&nbsp;completed)</code>&nbsp;</td>
</tr>
<tr id="i11" class="rowColor">
<td class="colFirst"><code>protected <a href="../../../../../../org/apache/hadoop/hbase/backup/BackupInfo.html" title="class in org.apache.hadoop.hbase.backup">BackupInfo</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/backup/impl/BackupManager.html#getBackupInfo--">getBackupInfo</a></span>()</code>
<div class="block">Returns backup info</div>
</td>
</tr>
<tr id="i12" class="altColor">
<td class="colFirst"><code>(package private) org.apache.hadoop.conf.Configuration</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/backup/impl/BackupManager.html#getConf--">getConf</a></span>()</code>
<div class="block">Get configuration</div>
</td>
</tr>
<tr id="i13" class="rowColor">
<td class="colFirst"><code><a href="../../../../../../org/apache/hadoop/hbase/client/Connection.html" title="interface in org.apache.hadoop.hbase.client">Connection</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/backup/impl/BackupManager.html#getConnection--">getConnection</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i14" class="altColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/Set.html?is-external=true" title="class or interface in java.util">Set</a>&lt;<a href="../../../../../../org/apache/hadoop/hbase/TableName.html" title="class in org.apache.hadoop.hbase">TableName</a>&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/backup/impl/BackupManager.html#getIncrementalBackupTableSet--">getIncrementalBackupTableSet</a></span>()</code>
<div class="block">Return the current tables covered by incremental backup.</div>
</td>
</tr>
<tr id="i15" class="rowColor">
<td class="colFirst"><code>private <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/hbase/backup/impl/BackupManager.html#getOngoingBackupId--">getOngoingBackupId</a></span>()</code>
<div class="block">Check if any ongoing backup.</div>
</td>
</tr>
<tr id="i16" class="altColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/Iterator.html?is-external=true" title="class or interface in java.util">Iterator</a>&lt;<a href="../../../../../../org/apache/hadoop/hbase/backup/impl/BackupSystemTable.WALItem.html" title="class in org.apache.hadoop.hbase.backup.impl">BackupSystemTable.WALItem</a>&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/backup/impl/BackupManager.html#getWALFilesFromBackupSystem--">getWALFilesFromBackupSystem</a></span>()</code>
<div class="block">Get WAL files iterator.</div>
</td>
</tr>
<tr id="i17" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/backup/impl/BackupManager.html#initialize--">initialize</a></span>()</code>
<div class="block">Start the backup manager service.</div>
</td>
</tr>
<tr id="i18" class="altColor">
<td class="colFirst"><code>static boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/backup/impl/BackupManager.html#isBackupEnabled-org.apache.hadoop.conf.Configuration-">isBackupEnabled</a></span>(org.apache.hadoop.conf.Configuration&nbsp;conf)</code>&nbsp;</td>
</tr>
<tr id="i19" 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/hbase/backup/impl/BackupManager.html#readBackupStartCode--">readBackupStartCode</a></span>()</code>
<div class="block">Read the last backup start code (timestamp) of last successful backup.</div>
</td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/backup/impl/BackupManager.html#readBulkloadRows-java.util.List-">readBulkloadRows</a></span>(<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="../../../../../../org/apache/hadoop/hbase/TableName.html" title="class in org.apache.hadoop.hbase">TableName</a>&gt;&nbsp;tableList)</code>&nbsp;</td>
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<tr id="i21" class="rowColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/HashMap.html?is-external=true" title="class or interface in java.util">HashMap</a>&lt;<a href="../../../../../../org/apache/hadoop/hbase/TableName.html" title="class in org.apache.hadoop.hbase">TableName</a>,<a href="https://docs.oracle.com/javase/8/docs/api/java/util/HashMap.html?is-external=true" title="class or interface in java.util">HashMap</a>&lt;<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>,<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;&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/backup/impl/BackupManager.html#readLogTimestampMap--">readLogTimestampMap</a></span>()</code>
<div class="block">Read the timestamp for each region server log after the last successful backup.</div>
</td>
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<tr id="i22" class="altColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/HashMap.html?is-external=true" title="class or interface in java.util">HashMap</a>&lt;<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>,<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;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/backup/impl/BackupManager.html#readRegionServerLastLogRollResult--">readRegionServerLastLogRollResult</a></span>()</code>
<div class="block">Get the RS log information after the last log roll from backup system table.</div>
</td>
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<tr id="i23" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/backup/impl/BackupManager.html#recordWALFiles-java.util.List-">recordWALFiles</a></span>(<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/String.html?is-external=true" title="class or interface in java.lang">String</a>&gt;&nbsp;files)</code>
<div class="block">Saves list of WAL files after incremental backup operation.</div>
</td>
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<tr id="i24" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/backup/impl/BackupManager.html#setBackupInfo-org.apache.hadoop.hbase.backup.BackupInfo-">setBackupInfo</a></span>(<a href="../../../../../../org/apache/hadoop/hbase/backup/BackupInfo.html" title="class in org.apache.hadoop.hbase.backup">BackupInfo</a>&nbsp;backupInfo)</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/hbase/backup/impl/BackupManager.html#startBackupSession--">startBackupSession</a></span>()</code>
<div class="block">Starts new backup session</div>
</td>
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<tr id="i26" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/backup/impl/BackupManager.html#updateBackupInfo-org.apache.hadoop.hbase.backup.BackupInfo-">updateBackupInfo</a></span>(<a href="../../../../../../org/apache/hadoop/hbase/backup/BackupInfo.html" title="class in org.apache.hadoop.hbase.backup">BackupInfo</a>&nbsp;context)</code>
<div class="block">Updates status (state) of a backup session in a persistent store</div>
</td>
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<tr id="i27" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/backup/impl/BackupManager.html#writeBackupStartCode-java.lang.Long-">writeBackupStartCode</a></span>(<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>&nbsp;startCode)</code>
<div class="block">Write the start code (timestamp) to backup system table.</div>
</td>
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<tr id="i28" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/backup/impl/BackupManager.html#writeRegionServerLogTimestamp-java.util.Set-java.util.HashMap-">writeRegionServerLogTimestamp</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Set.html?is-external=true" title="class or interface in java.util">Set</a>&lt;<a href="../../../../../../org/apache/hadoop/hbase/TableName.html" title="class in org.apache.hadoop.hbase">TableName</a>&gt;&nbsp;tables,
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<div class="block">Write the current timestamps for each regionserver to backup system table after a successful
full or incremental backup.</div>
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<pre>private static final&nbsp;int <a href="../../../../../../src-html/org/apache/hadoop/hbase/backup/impl/BackupManager.html#line.66">DEFAULT_BACKUP_EXCLUSIVE_OPERATION_TIMEOUT</a></pre>
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<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../../../../constant-values.html#org.apache.hadoop.hbase.backup.impl.BackupManager.DEFAULT_BACKUP_EXCLUSIVE_OPERATION_TIMEOUT">Constant Field Values</a></dd>
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<pre>private static final&nbsp;org.slf4j.Logger <a href="../../../../../../src-html/org/apache/hadoop/hbase/backup/impl/BackupManager.html#line.67">LOG</a></pre>
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<h4>conf</h4>
<pre>protected&nbsp;org.apache.hadoop.conf.Configuration <a href="../../../../../../src-html/org/apache/hadoop/hbase/backup/impl/BackupManager.html#line.69">conf</a></pre>
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<pre>protected&nbsp;<a href="../../../../../../org/apache/hadoop/hbase/backup/BackupInfo.html" title="class in org.apache.hadoop.hbase.backup">BackupInfo</a> <a href="../../../../../../src-html/org/apache/hadoop/hbase/backup/impl/BackupManager.html#line.70">backupInfo</a></pre>
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<pre>public&nbsp;<a href="../../../../../../src-html/org/apache/hadoop/hbase/backup/impl/BackupManager.html#line.80">BackupManager</a>(<a href="../../../../../../org/apache/hadoop/hbase/client/Connection.html" title="interface in org.apache.hadoop.hbase.client">Connection</a>&nbsp;conn,
org.apache.hadoop.conf.Configuration&nbsp;conf)
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">Backup manager constructor.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>conn</code> - connection</dd>
<dd><code>conf</code> - configuration</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> - exception</dd>
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<a name="getBackupInfo--">
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<pre>protected&nbsp;<a href="../../../../../../org/apache/hadoop/hbase/backup/BackupInfo.html" title="class in org.apache.hadoop.hbase.backup">BackupInfo</a>&nbsp;<a href="../../../../../../src-html/org/apache/hadoop/hbase/backup/impl/BackupManager.html#line.94">getBackupInfo</a>()</pre>
<div class="block">Returns backup info</div>
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<pre>public static&nbsp;void&nbsp;<a href="../../../../../../src-html/org/apache/hadoop/hbase/backup/impl/BackupManager.html#line.103">decorateMasterConfiguration</a>(org.apache.hadoop.conf.Configuration&nbsp;conf)</pre>
<div class="block">This method modifies the master's configuration in order to inject backup-related features
(TESTs only)</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>conf</code> - configuration</dd>
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<pre>public static&nbsp;void&nbsp;<a href="../../../../../../src-html/org/apache/hadoop/hbase/backup/impl/BackupManager.html#line.138">decorateRegionServerConfiguration</a>(org.apache.hadoop.conf.Configuration&nbsp;conf)</pre>
<div class="block">This method modifies the Region Server configuration in order to inject backup-related features
TESTs only.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>conf</code> - configuration</dd>
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<pre>public static&nbsp;boolean&nbsp;<a href="../../../../../../src-html/org/apache/hadoop/hbase/backup/impl/BackupManager.html#line.161">isBackupEnabled</a>(org.apache.hadoop.conf.Configuration&nbsp;conf)</pre>
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<pre>org.apache.hadoop.conf.Configuration&nbsp;<a href="../../../../../../src-html/org/apache/hadoop/hbase/backup/impl/BackupManager.html#line.170">getConf</a>()</pre>
<div class="block">Get configuration</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>configuration</dd>
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<h4>close</h4>
<pre>public&nbsp;void&nbsp;<a href="../../../../../../src-html/org/apache/hadoop/hbase/backup/impl/BackupManager.html#line.178">close</a>()</pre>
<div class="block">Stop all the work of backup.</div>
<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>
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<h4>createBackupInfo</h4>
<pre>public&nbsp;<a href="../../../../../../org/apache/hadoop/hbase/backup/BackupInfo.html" title="class in org.apache.hadoop.hbase.backup">BackupInfo</a>&nbsp;<a href="../../../../../../src-html/org/apache/hadoop/hbase/backup/impl/BackupManager.html#line.199">createBackupInfo</a>(<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;backupId,
<a href="../../../../../../org/apache/hadoop/hbase/backup/BackupType.html" title="enum in org.apache.hadoop.hbase.backup">BackupType</a>&nbsp;type,
<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="../../../../../../org/apache/hadoop/hbase/TableName.html" title="class in org.apache.hadoop.hbase">TableName</a>&gt;&nbsp;tableList,
<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;targetRootDir,
int&nbsp;workers,
long&nbsp;bandwidth)
throws <a href="../../../../../../org/apache/hadoop/hbase/backup/impl/BackupException.html" title="class in org.apache.hadoop.hbase.backup.impl">BackupException</a></pre>
<div class="block">Creates a backup info based on input backup request.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>backupId</code> - backup id</dd>
<dd><code>type</code> - type</dd>
<dd><code>tableList</code> - table list</dd>
<dd><code>targetRootDir</code> - root dir</dd>
<dd><code>workers</code> - number of parallel workers</dd>
<dd><code>bandwidth</code> - bandwidth per worker in MB per sec</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>BackupInfo</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../../../../org/apache/hadoop/hbase/backup/impl/BackupException.html" title="class in org.apache.hadoop.hbase.backup.impl">BackupException</a></code> - exception</dd>
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<h4>getOngoingBackupId</h4>
<pre>private&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;<a href="../../../../../../src-html/org/apache/hadoop/hbase/backup/impl/BackupManager.html#line.247">getOngoingBackupId</a>()
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">Check if any ongoing backup. Currently, we only reply on checking status in backup system
table. We need to consider to handle the case of orphan records in the future. Otherwise, all
the coming request will fail.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the ongoing backup id if on going backup exists, otherwise null</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> - exception</dd>
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<pre>public&nbsp;void&nbsp;<a href="../../../../../../src-html/org/apache/hadoop/hbase/backup/impl/BackupManager.html#line.259">initialize</a>()
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<div class="block">Start the backup manager service.</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> - exception</dd>
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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">Get direct ancestors of the current backup.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>backupInfo</code> - The backup info for the current backup</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>The ancestors for the current backup</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> - exception</dd>
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<pre>public&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/ArrayList.html?is-external=true" title="class or interface in java.util">ArrayList</a>&lt;<a href="../../../../../../org/apache/hadoop/hbase/backup/impl/BackupManifest.BackupImage.html" title="class in org.apache.hadoop.hbase.backup.impl">BackupManifest.BackupImage</a>&gt;&nbsp;<a href="../../../../../../src-html/org/apache/hadoop/hbase/backup/impl/BackupManager.html#line.353">getAncestors</a>(<a href="../../../../../../org/apache/hadoop/hbase/backup/BackupInfo.html" title="class in org.apache.hadoop.hbase.backup">BackupInfo</a>&nbsp;backupInfo,
<a href="../../../../../../org/apache/hadoop/hbase/TableName.html" title="class in org.apache.hadoop.hbase">TableName</a>&nbsp;table)
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">Get the direct ancestors of this backup for one table involved.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>backupInfo</code> - backup info</dd>
<dd><code>table</code> - table</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>backupImages on the dependency list</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> - exception</dd>
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<pre>public&nbsp;void&nbsp;<a href="../../../../../../src-html/org/apache/hadoop/hbase/backup/impl/BackupManager.html#line.377">updateBackupInfo</a>(<a href="../../../../../../org/apache/hadoop/hbase/backup/BackupInfo.html" title="class in org.apache.hadoop.hbase.backup">BackupInfo</a>&nbsp;context)
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">Updates status (state) of a backup session in a persistent store</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>context</code> - context</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> - exception</dd>
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<pre>public&nbsp;void&nbsp;<a href="../../../../../../src-html/org/apache/hadoop/hbase/backup/impl/BackupManager.html#line.385">startBackupSession</a>()
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">Starts new backup session</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> - if active session already exists</dd>
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<pre>public&nbsp;void&nbsp;<a href="../../../../../../src-html/org/apache/hadoop/hbase/backup/impl/BackupManager.html#line.422">finishBackupSession</a>()
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">Finishes active backup session</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> - if no active session</dd>
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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">Read the last backup start code (timestamp) of last successful backup. Will return null if
there is no startcode stored in backup system table or the value is of length 0. These two
cases indicate there is no successful backup completed so far.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the timestamp of a last successful backup</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> - exception</dd>
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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">Write the start code (timestamp) to backup system table. If passed in null, then write 0 byte.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>startCode</code> - start 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> - exception</dd>
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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">Get the RS log information after the last log roll from backup system table.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>RS log info</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> - exception</dd>
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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;<a href="../../../../../../src-html/org/apache/hadoop/hbase/backup/impl/BackupManager.html#line.460">deleteBulkLoadedRows</a>(<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;byte[]&gt;&nbsp;rows)
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>getBackupHistory</h4>
<pre>public&nbsp;<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="../../../../../../org/apache/hadoop/hbase/backup/BackupInfo.html" title="class in org.apache.hadoop.hbase.backup">BackupInfo</a>&gt;&nbsp;<a href="../../../../../../src-html/org/apache/hadoop/hbase/backup/impl/BackupManager.html#line.469">getBackupHistory</a>()
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">Get all completed backup information (in desc order by time)</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>history info of BackupCompleteData</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> - exception</dd>
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<pre>public&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/ArrayList.html?is-external=true" title="class or interface in java.util">ArrayList</a>&lt;<a href="../../../../../../org/apache/hadoop/hbase/backup/BackupInfo.html" title="class in org.apache.hadoop.hbase.backup">BackupInfo</a>&gt;&nbsp;<a href="../../../../../../src-html/org/apache/hadoop/hbase/backup/impl/BackupManager.html#line.473">getBackupHistory</a>(boolean&nbsp;completed)
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;<a href="../../../../../../src-html/org/apache/hadoop/hbase/backup/impl/BackupManager.html#line.484">writeRegionServerLogTimestamp</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Set.html?is-external=true" title="class or interface in java.util">Set</a>&lt;<a href="../../../../../../org/apache/hadoop/hbase/TableName.html" title="class in org.apache.hadoop.hbase">TableName</a>&gt;&nbsp;tables,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/HashMap.html?is-external=true" title="class or interface in java.util">HashMap</a>&lt;<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>,<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;newTimestamps)
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">Write the current timestamps for each regionserver to backup system table after a successful
full or incremental backup. Each table may have a different set of log timestamps. The saved
timestamp is of the last log file that was backed up already.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>tables</code> - tables</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> - exception</dd>
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<pre>public&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/HashMap.html?is-external=true" title="class or interface in java.util">HashMap</a>&lt;<a href="../../../../../../org/apache/hadoop/hbase/TableName.html" title="class in org.apache.hadoop.hbase">TableName</a>,<a href="https://docs.oracle.com/javase/8/docs/api/java/util/HashMap.html?is-external=true" title="class or interface in java.util">HashMap</a>&lt;<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>,<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;&gt;&nbsp;<a href="../../../../../../src-html/org/apache/hadoop/hbase/backup/impl/BackupManager.html#line.496">readLogTimestampMap</a>()
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">Read the timestamp for each region server log after the last successful backup. Each table has
its own set of the timestamps.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the timestamp for each region server. key: tableName value:
RegionServer,PreviousTimeStamp</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> - exception</dd>
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<pre>public&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Set.html?is-external=true" title="class or interface in java.util">Set</a>&lt;<a href="../../../../../../org/apache/hadoop/hbase/TableName.html" title="class in org.apache.hadoop.hbase">TableName</a>&gt;&nbsp;<a href="../../../../../../src-html/org/apache/hadoop/hbase/backup/impl/BackupManager.html#line.505">getIncrementalBackupTableSet</a>()
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">Return the current tables covered by incremental backup.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>set of tableNames</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> - exception</dd>
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<pre>public&nbsp;void&nbsp;<a href="../../../../../../src-html/org/apache/hadoop/hbase/backup/impl/BackupManager.html#line.514">addIncrementalBackupTableSet</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Set.html?is-external=true" title="class or interface in java.util">Set</a>&lt;<a href="../../../../../../org/apache/hadoop/hbase/TableName.html" title="class in org.apache.hadoop.hbase">TableName</a>&gt;&nbsp;tables)
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">Adds set of tables to overall incremental backup table set</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>tables</code> - tables</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> - exception</dd>
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<pre>public&nbsp;void&nbsp;<a href="../../../../../../src-html/org/apache/hadoop/hbase/backup/impl/BackupManager.html#line.523">recordWALFiles</a>(<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/String.html?is-external=true" title="class or interface in java.lang">String</a>&gt;&nbsp;files)
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">Saves list of WAL files after incremental backup operation. These files will be stored until
TTL expiration and are used by Backup Log Cleaner plug-in to determine which WAL files can be
safely purged.</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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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">Get WAL files iterator.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>WAL files iterator from backup system table</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> - if getting the WAL files iterator fails</dd>
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