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<div class="subTitle">org.apache.ignite.spi.checkpoint.sharedfs</div>
<h2 title="Class SharedFsCheckpointSpi" class="title">Class SharedFsCheckpointSpi</h2>
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<ul class="inheritance">
<li><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">java.lang.Object</a></li>
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<ul class="inheritance">
<li><a href="../../../../../../org/apache/ignite/spi/IgniteSpiAdapter.html" title="class in org.apache.ignite.spi">org.apache.ignite.spi.IgniteSpiAdapter</a></li>
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<ul class="inheritance">
<li>org.apache.ignite.spi.checkpoint.sharedfs.SharedFsCheckpointSpi</li>
</ul>
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<div class="description">
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<dl>
<dt>All Implemented Interfaces:</dt>
<dd><a href="../../../../../../org/apache/ignite/spi/checkpoint/CheckpointSpi.html" title="interface in org.apache.ignite.spi.checkpoint">CheckpointSpi</a>, <a href="../../../../../../org/apache/ignite/spi/IgniteSpi.html" title="interface in org.apache.ignite.spi">IgniteSpi</a></dd>
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<br>
<pre><a href="../../../../../../org/apache/ignite/spi/IgniteSpiMultipleInstancesSupport.html" title="annotation in org.apache.ignite.spi">@IgniteSpiMultipleInstancesSupport</a>(<a href="../../../../../../org/apache/ignite/spi/IgniteSpiMultipleInstancesSupport.html#value--">value</a>=true)
<a href="../../../../../../org/apache/ignite/spi/IgniteSpiConsistencyChecked.html" title="annotation in org.apache.ignite.spi">@IgniteSpiConsistencyChecked</a>(<a href="../../../../../../org/apache/ignite/spi/IgniteSpiConsistencyChecked.html#optional--">optional</a>=false)
public class <span class="typeNameLabel">SharedFsCheckpointSpi</span>
extends <a href="../../../../../../org/apache/ignite/spi/IgniteSpiAdapter.html" title="class in org.apache.ignite.spi">IgniteSpiAdapter</a>
implements <a href="../../../../../../org/apache/ignite/spi/checkpoint/CheckpointSpi.html" title="interface in org.apache.ignite.spi.checkpoint">CheckpointSpi</a></pre>
<div class="block">This class defines shared file system <a href="../../../../../../org/apache/ignite/spi/checkpoint/CheckpointSpi.html" title="interface in org.apache.ignite.spi.checkpoint"><code>CheckpointSpi</code></a> implementation for
checkpoint SPI. All checkpoints are stored on shared storage and available for all
nodes in the grid. Note that every node must have access to the shared directory. The
reason the directory needs to be <code>shared</code> is because a job state
can be saved on one node and loaded on another (e.g. if a job gets
preempted on a different node after node failure). When started, this SPI tracks
all checkpoints saved by localhost for expiration. Note that this SPI does not
cache data stored in checkpoints - all the data is loaded from file system
on demand.
<p>
Directory paths for shared checkpoints should either be empty or contain previously
stored checkpoint files.
<p>
<h1 class="header">Configuration</h1>
<h2 class="header">Mandatory</h2>
This SPI has no mandatory configuration parameters.
<h2 class="header">Optional</h2>
This SPI has following optional configuration parameters:
<ul>
<li>Directory paths (see <a href="../../../../../../org/apache/ignite/spi/checkpoint/sharedfs/SharedFsCheckpointSpi.html#setDirectoryPaths-java.util.Collection-"><code>setDirectoryPaths(Collection)</code></a>)</li>
</ul>
<h2 class="header">Java Example</h2>
<a href="../../../../../../org/apache/ignite/spi/checkpoint/sharedfs/SharedFsCheckpointSpi.html" title="class in org.apache.ignite.spi.checkpoint.sharedfs"><code>SharedFsCheckpointSpi</code></a> can be configured as follows:
<pre name="code" class="java">
IgniteConfiguration cfg = new IgniteConfiguration();
SharedFsCheckpointSpi checkpointSpi = new SharedFsCheckpointSpi();
// List of checkpoint directories where all files are stored.
Collection<String> dirPaths = new ArrayList<String>();
dirPaths.add("/my/directory/path");
dirPaths.add("/other/directory/path");
// Override default directory path.
checkpointSpi.setDirectoryPaths(dirPaths);
// Override default checkpoint SPI.
cfg.setCheckpointSpi(checkpointSpi);
// Starts grid.
G.start(cfg);
</pre>
<h2 class="header">Spring Example</h2>
<a href="../../../../../../org/apache/ignite/spi/checkpoint/sharedfs/SharedFsCheckpointSpi.html" title="class in org.apache.ignite.spi.checkpoint.sharedfs"><code>SharedFsCheckpointSpi</code></a> can be configured from Spring XML configuration file:
<pre name="code" class="xml">
&lt;bean id="grid.custom.cfg" class="org.apache.ignite.configuration.IgniteConfiguration" singleton="true"&gt;
...
&lt;property name="checkpointSpi"&gt;
&lt;bean class="org.apache.ignite.spi.checkpoint.sharedfs.GridSharedFsCheckpointSpi"&gt;
&lt;!-- Change to shared directory path in your environment. --&gt;
&lt;property name="directoryPaths"&gt;
&lt;list&gt;
&lt;value&gt;/my/directory/path&lt;/value&gt;
&lt;value&gt;/other/directory/path&lt;/value&gt;
&lt;/list&gt;
&lt;/property&gt;
&lt;/bean&gt;
&lt;/property&gt;
...
&lt;/bean&gt;
</pre>
<p>
<img src="http://ignite.apache.org/images/spring-small.png">
<br>
For information about Spring framework visit <a href="http://www.springframework.org/">www.springframework.org</a></div>
<dl>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../../../../org/apache/ignite/spi/checkpoint/CheckpointSpi.html" title="interface in org.apache.ignite.spi.checkpoint"><code>CheckpointSpi</code></a></dd>
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<th class="colFirst" scope="col">Modifier and Type</th>
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<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/ignite/spi/checkpoint/sharedfs/SharedFsCheckpointSpi.html#DFLT_DIR_PATH">DFLT_DIR_PATH</a></span></code>
<div class="block">Default checkpoint directory.</div>
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../org/apache/ignite/spi/checkpoint/sharedfs/SharedFsCheckpointSpi.html#SharedFsCheckpointSpi--">SharedFsCheckpointSpi</a></span>()</code>
<div class="block">Initializes default directory paths.</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>
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<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/ignite/spi/checkpoint/sharedfs/SharedFsCheckpointSpi.html#getCurrentDirectoryPath--">getCurrentDirectoryPath</a></span>()</code>
<div class="block">Gets path to the directory where all checkpoints are saved.</div>
</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a><span class='angle_bracket'>&lt;</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><span class='angle_bracket'>&gt;</span></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/ignite/spi/checkpoint/sharedfs/SharedFsCheckpointSpi.html#getDirectoryPaths--">getDirectoryPaths</a></span>()</code>
<div class="block">Gets collection of all configured paths where checkpoints can be saved.</div>
</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code>byte[]</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/ignite/spi/checkpoint/sharedfs/SharedFsCheckpointSpi.html#loadCheckpoint-java.lang.String-">loadCheckpoint</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;key)</code>
<div class="block">Loads checkpoint from storage by its unique key.</div>
</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/ignite/spi/checkpoint/sharedfs/SharedFsCheckpointSpi.html#removeCheckpoint-java.lang.String-">removeCheckpoint</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;key)</code>
<div class="block">This method instructs the checkpoint provider to clean saved data for a
given <code>key</code>.</div>
</td>
</tr>
<tr id="i4" class="altColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/ignite/spi/checkpoint/sharedfs/SharedFsCheckpointSpi.html#saveCheckpoint-java.lang.String-byte:A-long-boolean-">saveCheckpoint</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;key,
byte[]&nbsp;state,
long&nbsp;timeout,
boolean&nbsp;overwrite)</code>
<div class="block">Saves checkpoint to the storage.</div>
</td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/ignite/spi/checkpoint/sharedfs/SharedFsCheckpointSpi.html#setCheckpointListener-org.apache.ignite.spi.checkpoint.CheckpointListener-">setCheckpointListener</a></span>(<a href="../../../../../../org/apache/ignite/spi/checkpoint/CheckpointListener.html" title="interface in org.apache.ignite.spi.checkpoint">CheckpointListener</a>&nbsp;lsnr)</code>
<div class="block">Sets the checkpoint listener.</div>
</td>
</tr>
<tr id="i6" class="altColor">
<td class="colFirst"><code><a href="../../../../../../org/apache/ignite/spi/checkpoint/sharedfs/SharedFsCheckpointSpi.html" title="class in org.apache.ignite.spi.checkpoint.sharedfs">SharedFsCheckpointSpi</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/ignite/spi/checkpoint/sharedfs/SharedFsCheckpointSpi.html#setDirectoryPaths-java.util.Collection-">setDirectoryPaths</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a><span class='angle_bracket'>&lt;</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><span class='angle_bracket'>&gt;</span>&nbsp;dirPaths)</code>
<div class="block">Sets path to a shared directory where checkpoints will be stored.</div>
</td>
</tr>
<tr id="i7" class="rowColor">
<td class="colFirst"><code><a href="../../../../../../org/apache/ignite/spi/checkpoint/sharedfs/SharedFsCheckpointSpi.html" title="class in org.apache.ignite.spi.checkpoint.sharedfs">SharedFsCheckpointSpi</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/ignite/spi/checkpoint/sharedfs/SharedFsCheckpointSpi.html#setName-java.lang.String-">setName</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;name)</code>
<div class="block">Sets SPI name.</div>
</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/ignite/spi/checkpoint/sharedfs/SharedFsCheckpointSpi.html#spiStart-java.lang.String-">spiStart</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;igniteInstanceName)</code>
<div class="block">This method is called to start SPI.</div>
</td>
</tr>
<tr id="i9" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/ignite/spi/checkpoint/sharedfs/SharedFsCheckpointSpi.html#spiStop--">spiStop</a></span>()</code>
<div class="block">This method is called to stop SPI.</div>
</td>
</tr>
<tr id="i10" 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/ignite/spi/checkpoint/sharedfs/SharedFsCheckpointSpi.html#toString--">toString</a></span>()</code></td>
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<h3>Methods inherited from class&nbsp;org.apache.ignite.spi.<a href="../../../../../../org/apache/ignite/spi/IgniteSpiAdapter.html" title="class in org.apache.ignite.spi">IgniteSpiAdapter</a></h3>
<code><a href="../../../../../../org/apache/ignite/spi/IgniteSpiAdapter.html#addTimeoutObject-org.apache.ignite.spi.IgniteSpiTimeoutObject-">addTimeoutObject</a>, <a href="../../../../../../org/apache/ignite/spi/IgniteSpiAdapter.html#assertParameter-boolean-java.lang.String-">assertParameter</a>, <a href="../../../../../../org/apache/ignite/spi/IgniteSpiAdapter.html#checkConfigurationConsistency0-org.apache.ignite.spi.IgniteSpiContext-org.apache.ignite.cluster.ClusterNode-boolean-">checkConfigurationConsistency0</a>, <a href="../../../../../../org/apache/ignite/spi/IgniteSpiAdapter.html#clientFailureDetectionTimeout--">clientFailureDetectionTimeout</a>, <a href="../../../../../../org/apache/ignite/spi/IgniteSpiAdapter.html#configInfo-java.lang.String-java.lang.Object-">configInfo</a>, <a href="../../../../../../org/apache/ignite/spi/IgniteSpiAdapter.html#createSpiAttributeName-java.lang.String-">createSpiAttributeName</a>, <a href="../../../../../../org/apache/ignite/spi/IgniteSpiAdapter.html#failureDetectionTimeout--">failureDetectionTimeout</a>, <a href="../../../../../../org/apache/ignite/spi/IgniteSpiAdapter.html#failureDetectionTimeoutEnabled--">failureDetectionTimeoutEnabled</a>, <a href="../../../../../../org/apache/ignite/spi/IgniteSpiAdapter.html#failureDetectionTimeoutEnabled-boolean-">failureDetectionTimeoutEnabled</a>, <a href="../../../../../../org/apache/ignite/spi/IgniteSpiAdapter.html#getConsistentAttributeNames--">getConsistentAttributeNames</a>, <a href="../../../../../../org/apache/ignite/spi/IgniteSpiAdapter.html#getExceptionRegistry--">getExceptionRegistry</a>, <a href="../../../../../../org/apache/ignite/spi/IgniteSpiAdapter.html#getLocalNode--">getLocalNode</a>, <a href="../../../../../../org/apache/ignite/spi/IgniteSpiAdapter.html#getName--">getName</a>, <a href="../../../../../../org/apache/ignite/spi/IgniteSpiAdapter.html#getNodeAttributes--">getNodeAttributes</a>, <a href="../../../../../../org/apache/ignite/spi/IgniteSpiAdapter.html#getSpiContext--">getSpiContext</a>, <a href="../../../../../../org/apache/ignite/spi/IgniteSpiAdapter.html#ignite--">ignite</a>, <a href="../../../../../../org/apache/ignite/spi/IgniteSpiAdapter.html#initFailureDetectionTimeout--">initFailureDetectionTimeout</a>, <a href="../../../../../../org/apache/ignite/spi/IgniteSpiAdapter.html#injectables--">injectables</a>, <a href="../../../../../../org/apache/ignite/spi/IgniteSpiAdapter.html#injectResources-org.apache.ignite.Ignite-">injectResources</a>, <a href="../../../../../../org/apache/ignite/spi/IgniteSpiAdapter.html#isNodeStopping--">isNodeStopping</a>, <a href="../../../../../../org/apache/ignite/spi/IgniteSpiAdapter.html#onBeforeStart--">onBeforeStart</a>, <a href="../../../../../../org/apache/ignite/spi/IgniteSpiAdapter.html#onClientDisconnected-org.apache.ignite.lang.IgniteFuture-">onClientDisconnected</a>, <a href="../../../../../../org/apache/ignite/spi/IgniteSpiAdapter.html#onClientReconnected-boolean-">onClientReconnected</a>, <a href="../../../../../../org/apache/ignite/spi/IgniteSpiAdapter.html#onContextDestroyed--">onContextDestroyed</a>, <a href="../../../../../../org/apache/ignite/spi/IgniteSpiAdapter.html#onContextDestroyed0--">onContextDestroyed0</a>, <a href="../../../../../../org/apache/ignite/spi/IgniteSpiAdapter.html#onContextInitialized-org.apache.ignite.spi.IgniteSpiContext-">onContextInitialized</a>, <a href="../../../../../../org/apache/ignite/spi/IgniteSpiAdapter.html#onContextInitialized0-org.apache.ignite.spi.IgniteSpiContext-">onContextInitialized0</a>, <a href="../../../../../../org/apache/ignite/spi/IgniteSpiAdapter.html#registerMBean-java.lang.String-T-java.lang.Class-">registerMBean</a>, <a href="../../../../../../org/apache/ignite/spi/IgniteSpiAdapter.html#removeTimeoutObject-org.apache.ignite.spi.IgniteSpiTimeoutObject-">removeTimeoutObject</a>, <a href="../../../../../../org/apache/ignite/spi/IgniteSpiAdapter.html#started--">started</a>, <a href="../../../../../../org/apache/ignite/spi/IgniteSpiAdapter.html#startInfo--">startInfo</a>, <a href="../../../../../../org/apache/ignite/spi/IgniteSpiAdapter.html#startStopwatch--">startStopwatch</a>, <a href="../../../../../../org/apache/ignite/spi/IgniteSpiAdapter.html#stopInfo--">stopInfo</a>, <a href="../../../../../../org/apache/ignite/spi/IgniteSpiAdapter.html#unregisterMBean--">unregisterMBean</a></code></li>
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<h3>Methods inherited from class&nbsp;java.lang.<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></h3>
<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#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>Methods inherited from interface&nbsp;org.apache.ignite.spi.<a href="../../../../../../org/apache/ignite/spi/IgniteSpi.html" title="interface in org.apache.ignite.spi">IgniteSpi</a></h3>
<code><a href="../../../../../../org/apache/ignite/spi/IgniteSpi.html#getName--">getName</a>, <a href="../../../../../../org/apache/ignite/spi/IgniteSpi.html#getNodeAttributes--">getNodeAttributes</a>, <a href="../../../../../../org/apache/ignite/spi/IgniteSpi.html#onClientDisconnected-org.apache.ignite.lang.IgniteFuture-">onClientDisconnected</a>, <a href="../../../../../../org/apache/ignite/spi/IgniteSpi.html#onClientReconnected-boolean-">onClientReconnected</a>, <a href="../../../../../../org/apache/ignite/spi/IgniteSpi.html#onContextDestroyed--">onContextDestroyed</a>, <a href="../../../../../../org/apache/ignite/spi/IgniteSpi.html#onContextInitialized-org.apache.ignite.spi.IgniteSpiContext-">onContextInitialized</a></code></li>
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<h4>DFLT_DIR_PATH</h4>
<pre>public static final&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> DFLT_DIR_PATH</pre>
<div class="block">Default checkpoint directory. Note that this path is relative to <code>IGNITE_HOME/work</code> folder
if <code>IGNITE_HOME</code> system or environment variable specified, otherwise it is relative to
<code>work</code> folder under system <code>java.io.tmpdir</code> folder.</div>
<dl>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../../../../org/apache/ignite/configuration/IgniteConfiguration.html#getWorkDirectory--"><code>IgniteConfiguration.getWorkDirectory()</code></a>,
<a href="../../../../../../constant-values.html#org.apache.ignite.spi.checkpoint.sharedfs.SharedFsCheckpointSpi.DFLT_DIR_PATH">Constant Field Values</a></dd>
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<h4>SharedFsCheckpointSpi</h4>
<pre>public&nbsp;SharedFsCheckpointSpi()</pre>
<div class="block">Initializes default directory paths.</div>
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<h4>getDirectoryPaths</h4>
<pre>public&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a><span class='angle_bracket'>&lt;</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><span class='angle_bracket'>&gt;</span>&nbsp;getDirectoryPaths()</pre>
<div class="block">Gets collection of all configured paths where checkpoints can be saved.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>Collection of all configured paths.</dd>
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<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;getCurrentDirectoryPath()</pre>
<div class="block">Gets path to the directory where all checkpoints are saved.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>Path to the checkpoints directory.</dd>
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<h4>setDirectoryPaths</h4>
<pre><a href="../../../../../../org/apache/ignite/spi/IgniteSpiConfiguration.html" title="annotation in org.apache.ignite.spi">@IgniteSpiConfiguration</a>(<a href="../../../../../../org/apache/ignite/spi/IgniteSpiConfiguration.html#optional--">optional</a>=true)
public&nbsp;<a href="../../../../../../org/apache/ignite/spi/checkpoint/sharedfs/SharedFsCheckpointSpi.html" title="class in org.apache.ignite.spi.checkpoint.sharedfs">SharedFsCheckpointSpi</a>&nbsp;setDirectoryPaths(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a><span class='angle_bracket'>&lt;</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><span class='angle_bracket'>&gt;</span>&nbsp;dirPaths)</pre>
<div class="block">Sets path to a shared directory where checkpoints will be stored. The
path can either be absolute or relative to <code>IGNITE_HOME</code> system
or environment variable.
<p>
If not provided, default value is <a href="../../../../../../org/apache/ignite/spi/checkpoint/sharedfs/SharedFsCheckpointSpi.html#DFLT_DIR_PATH"><code>DFLT_DIR_PATH</code></a>.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>dirPaths</code> - Absolute or Ignite installation home folder relative path where checkpoints
will be stored.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd><code>this</code> for chaining.</dd>
</dl>
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<pre>public&nbsp;void&nbsp;spiStart(<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;igniteInstanceName)
throws <a href="../../../../../../org/apache/ignite/spi/IgniteSpiException.html" title="class in org.apache.ignite.spi">IgniteSpiException</a></pre>
<div class="block">This method is called to start SPI. After this method returns
successfully kernel assumes that SPI is fully operational.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../../org/apache/ignite/spi/IgniteSpi.html#spiStart-java.lang.String-">spiStart</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../../org/apache/ignite/spi/IgniteSpi.html" title="interface in org.apache.ignite.spi">IgniteSpi</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>igniteInstanceName</code> - Name of Ignite instance this SPI is being started for
(<code>null</code> for default Ignite instance).</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../../../../org/apache/ignite/spi/IgniteSpiException.html" title="class in org.apache.ignite.spi">IgniteSpiException</a></code> - Throws in case of any error during SPI start.</dd>
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<h4>spiStop</h4>
<pre>public&nbsp;void&nbsp;spiStop()
throws <a href="../../../../../../org/apache/ignite/spi/IgniteSpiException.html" title="class in org.apache.ignite.spi">IgniteSpiException</a></pre>
<div class="block">This method is called to stop SPI. After this method returns kernel
assumes that this SPI is finished and all resources acquired by it
are released.
<p>
<b>
Note that this method can be called at any point including during
recovery of failed start. It should make no assumptions on what state SPI
will be in when this method is called.
</b></div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../../org/apache/ignite/spi/IgniteSpi.html#spiStop--">spiStop</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../../org/apache/ignite/spi/IgniteSpi.html" title="interface in org.apache.ignite.spi">IgniteSpi</a></code></dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../../../../org/apache/ignite/spi/IgniteSpiException.html" title="class in org.apache.ignite.spi">IgniteSpiException</a></code> - Thrown in case of any error during SPI stop.</dd>
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<pre>public&nbsp;byte[]&nbsp;loadCheckpoint(<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;key)
throws <a href="../../../../../../org/apache/ignite/spi/IgniteSpiException.html" title="class in org.apache.ignite.spi">IgniteSpiException</a></pre>
<div class="block">Loads checkpoint from storage by its unique key.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../../org/apache/ignite/spi/checkpoint/CheckpointSpi.html#loadCheckpoint-java.lang.String-">loadCheckpoint</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../../org/apache/ignite/spi/checkpoint/CheckpointSpi.html" title="interface in org.apache.ignite.spi.checkpoint">CheckpointSpi</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>key</code> - Checkpoint key.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>Loaded data or <code>null</code> if there is no data for a given
key.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../../../../org/apache/ignite/spi/IgniteSpiException.html" title="class in org.apache.ignite.spi">IgniteSpiException</a></code> - Thrown in case of any error while loading
checkpoint data. Note that in case when given <code>key</code> is not
found this method will return <code>null</code>.</dd>
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<pre>public&nbsp;boolean&nbsp;saveCheckpoint(<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;key,
byte[]&nbsp;state,
long&nbsp;timeout,
boolean&nbsp;overwrite)
throws <a href="../../../../../../org/apache/ignite/spi/IgniteSpiException.html" title="class in org.apache.ignite.spi">IgniteSpiException</a></pre>
<div class="block">Saves checkpoint to the storage.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../../org/apache/ignite/spi/checkpoint/CheckpointSpi.html#saveCheckpoint-java.lang.String-byte:A-long-boolean-">saveCheckpoint</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../../org/apache/ignite/spi/checkpoint/CheckpointSpi.html" title="interface in org.apache.ignite.spi.checkpoint">CheckpointSpi</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>key</code> - Checkpoint unique key.</dd>
<dd><code>state</code> - Saved data.</dd>
<dd><code>timeout</code> - Every intermediate data stored by checkpoint provider
should have a timeout. Timeout allows for effective resource
management by checkpoint provider by cleaning saved data that are not
needed anymore. Generally, the user should choose the minimum
possible timeout to avoid long-term resource acquisition by checkpoint
provider. Value <code>0</code> means that timeout will never expire.</dd>
<dd><code>overwrite</code> - Whether or not overwrite checkpoint if it already exists.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd><code>true</code> if checkpoint has been actually saved, <code>false</code> otherwise.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../../../../org/apache/ignite/spi/IgniteSpiException.html" title="class in org.apache.ignite.spi">IgniteSpiException</a></code> - Thrown in case of any error while saving
checkpoint data.</dd>
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<pre>public&nbsp;boolean&nbsp;removeCheckpoint(<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;key)</pre>
<div class="block">This method instructs the checkpoint provider to clean saved data for a
given <code>key</code>.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../../org/apache/ignite/spi/checkpoint/CheckpointSpi.html#removeCheckpoint-java.lang.String-">removeCheckpoint</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../../org/apache/ignite/spi/checkpoint/CheckpointSpi.html" title="interface in org.apache.ignite.spi.checkpoint">CheckpointSpi</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>key</code> - Key for the checkpoint to remove.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd><code>true</code> if data has been actually removed, <code>false</code>
otherwise.</dd>
</dl>
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<h4>setCheckpointListener</h4>
<pre>public&nbsp;void&nbsp;setCheckpointListener(<a href="../../../../../../org/apache/ignite/spi/checkpoint/CheckpointListener.html" title="interface in org.apache.ignite.spi.checkpoint">CheckpointListener</a>&nbsp;lsnr)</pre>
<div class="block">Sets the checkpoint listener.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../../org/apache/ignite/spi/checkpoint/CheckpointSpi.html#setCheckpointListener-org.apache.ignite.spi.checkpoint.CheckpointListener-">setCheckpointListener</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../../org/apache/ignite/spi/checkpoint/CheckpointSpi.html" title="interface in org.apache.ignite.spi.checkpoint">CheckpointSpi</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>lsnr</code> - The listener to set or <code>null</code>.</dd>
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<h4>setName</h4>
<pre>public&nbsp;<a href="../../../../../../org/apache/ignite/spi/checkpoint/sharedfs/SharedFsCheckpointSpi.html" title="class in org.apache.ignite.spi.checkpoint.sharedfs">SharedFsCheckpointSpi</a>&nbsp;setName(<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;name)</pre>
<div class="block">Sets SPI name.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code><a href="../../../../../../org/apache/ignite/spi/IgniteSpiAdapter.html#setName-java.lang.String-">setName</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../../org/apache/ignite/spi/IgniteSpiAdapter.html" title="class in org.apache.ignite.spi">IgniteSpiAdapter</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>name</code> - SPI name.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd><code>this</code> for chaining.</dd>
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<h4>toString</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;toString()</pre>
<dl>
<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code><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></code>&nbsp;in class&nbsp;<code><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></code></dd>
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<p class="legalCopy"><small><table width="100%" border="0" cellspacing=0 cellpadding=0 style="padding: 5px"> <tr> <td> <table style="padding-left: 0; margin: 0"> <tbody style="padding: 0; margin: 0"> <tr style="padding: 0; margin: 0"> <td> <a target=_blank href="https://ignite.apache.org"><nobr>2020 Copyright &#169; Apache Software Foundation</nobr></a> </td> </tr> </tbody> </table> </td> <td width="100%" align="right" valign="center"> <a href="https://twitter.com/ApacheIgnite" class="twitter-follow-button" data-show-count="false" data-size="large">Follow @ApacheIgnite</a> </td> </tr> <tr> <td colspan="2" valign="top" align="left"> <table style="padding-left: 0; margin: 0"> <tbody style="padding: 0; margin: 0"> <tr style="padding: 0; margin: 0"> <td> <b>Ignite Database and Caching Platform</b> </td> <td>:&nbsp;&nbsp; ver. <strong>2.9.0</strong> </td> </tr> <tr style="padding: 0; margin: 0"> <td> <b>Release Date</b> </td> <td>:&nbsp;&nbsp; October 15 2020 </td> </tr> </tbody> </table> </td> </tr> </table></small></p>
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