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commit 8a0a3494e629b7a0a4b476cd0b8239b4180d8488 Author: Denis Magda <[email protected]> AuthorDate: Thu Sep 17 13:53:04 2020 -0700 Revert "Revert "Updating Ignite 2.9.0 docs"" This reverts commit 14b834bdc2f50f67fe46ed0be0d71b1ae618cb7a. --- docs/2.9.0/persistence/snapshots.html | 2771 +++++++++++++++++++++++++++++++++ includes/promotion_banner.html | 10 + 2 files changed, 2781 insertions(+) diff --git a/docs/2.9.0/persistence/snapshots.html b/docs/2.9.0/persistence/snapshots.html new file mode 100644 index 0000000..bb09d72 --- /dev/null +++ b/docs/2.9.0/persistence/snapshots.html @@ -0,0 +1,2771 @@ +<!DOCTYPE html> + + + +<html lang="en"> +<head> + <!-- Global site tag (gtag.js) - Google Analytics --> + <script async src="https://www.googletagmanager.com/gtag/js?id=UA-61232409-1";></script> + <script> + window.dataLayer = window.dataLayer || []; + function gtag(){dataLayer.push(arguments);} + gtag('js', new Date()); + + gtag('config', 'UA-61232409-1'); + </script> + + + + <meta 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Code</a> + + </li> + + <li> + + + <a href="/docs/latest/peer-class-loading" class='' >Peer Class Loading</a> + + </li> + + <li> + + + <a href="/docs/latest/data-streaming" class='' >Data Streaming</a> + + </li> + + <li> + + + + + + + <button type='button' data-guide-url="" class='group-toggle collapsed '>Using Key-Value Cache API<img class="state-indicator" src="/assets/images/left-nav-arrow.svg"></button> + <nav class='nav-group collapsed'> + + + + + + + <li> + + <a href="/docs/latest/key-value-api/basic-cache-operations" + + class='' + >Basic Cache Operations</a> + + </li> + + + + + + <li> + + <a href="/docs/latest/key-value-api/binary-objects" + + class='' + >Working with Binary Objects</a> + + </li> + + + + + + <li> + + <a href="/docs/latest/key-value-api/using-scan-queries" + + class='' + >Using Scan Queries</a> + + </li> + + + + + + <li> + + <a href="/docs/latest/read-repair" + + class='' + >Read Repair</a> + + </li> + + + + </nav> + + </li> + + <li> + + + <a 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+ + + <li> + + <a href="/docs/latest/data-structures/atomic-types" + + class='' + >Atomic Types</a> + + </li> + + + + + + <li> + + <a href="/docs/latest/data-structures/countdownlatch" + + class='' + >CountDownLatch</a> + + </li> + + + + + + <li> + + <a href="/docs/latest/data-structures/atomic-sequence" + + class='' + >Atomic Sequence</a> + + </li> + + + + + + <li> + + <a href="/docs/latest/data-structures/semaphore" + + class='' + >Semaphore</a> + + </li> + + + + </nav> + + </li> + + <li> + + + + + + + <button type='button' data-guide-url="" class='group-toggle collapsed '>Machine Learning<img class="state-indicator" src="/assets/images/left-nav-arrow.svg"></button> + <nav class='nav-group collapsed'> + + + + + + + <li> + + <a href="/docs/latest/machine-learning/machine-learning" + + class='' + >Machine Learning</a> + + </li> + + + + + + <li> + + <a href="/docs/latest/machine-learning/partition-based-dataset" + + class='' + >Partition Based Dataset</a> + + </li> + + + + + + <li> + + <a href="/docs/latest/machine-learning/updating-trained-models" + + class='' + >Updating Trained Models</a> + + </li> + + + + + + <li> + + + + <button + type='button' + class='collapsed '>Binary Classification<img class="state-indicator" src="/assets/images/left-nav-arrow.svg"></button> + <nav class="sub_pages collapsed"> + + + + + <li><a href="/docs/latest//machine-learning/binary-classification/introduction" class=''>Introduction</a></li> + + + + <li><a href="/docs/latest//machine-learning/binary-classification/linear-svm" class=''>Linear SVM (Support Vector Machine)</a></li> + + + + <li><a href="/docs/latest//machine-learning/binary-classification/decision-trees" class=''>Decision Trees</a></li> + + + + <li><a href="/docs/latest//machine-learning/binary-classification/multilayer-perceptron" class=''>Multilayer Perceptron</a></li> + + + + <li><a href="/docs/latest//machine-learning/binary-classification/logistic-regression" class=''>Logistic Regression</a></li> + + + + <li><a href="/docs/latest//machine-learning/binary-classification/knn-classification" class=''>k-NN Classification</a></li> + + + + <li><a href="/docs/latest//machine-learning/binary-classification/ann" class=''>ANN (Approximate Nearest Neighbor)</a></li> + + + + <li><a href="/docs/latest//machine-learning/binary-classification/naive-bayes" class=''>Naive Bayes</a></li> + + </nav> + + </li> + + + + + + <li> + + + + <button + type='button' + class='collapsed '>Regression<img class="state-indicator" src="/assets/images/left-nav-arrow.svg"></button> + <nav class="sub_pages collapsed"> + + + + + <li><a href="/docs/latest//machine-learning/regression/introduction" class=''>Introduction</a></li> + + + + <li><a href="/docs/latest//machine-learning/regression/linear-regression" class=''>Linear Regression</a></li> + + + + <li><a href="/docs/latest//machine-learning/regression/decision-trees-regression" class=''>Decision Trees Regression</a></li> + + + + <li><a href="/docs/latest//machine-learning/regression/knn-regression" class=''>k-NN Regression</a></li> + + </nav> + + </li> + + + + + + <li> + + + + <button + type='button' + class='collapsed '>Clustering<img class="state-indicator" src="/assets/images/left-nav-arrow.svg"></button> + <nav class="sub_pages collapsed"> + + + + + <li><a href="/docs/latest//machine-learning/clustering/introduction" class=''>Introduction</a></li> + + + + <li><a href="/docs/latest//machine-learning/clustering/k-means-clustering" class=''>K-Means Clustering</a></li> + + + + <li><a href="/docs/latest//machine-learning/clustering/gaussian-mixture" class=''>Gaussian mixture (GMM)</a></li> + + </nav> + + </li> + + + + + + <li> + + <a href="/docs/latest/machine-learning/preprocessing" + + class='' + >Preprocessing</a> + + </li> + + + + + + <li> + + + + <button + type='button' + class='collapsed '>Model Selection<img class="state-indicator" src="/assets/images/left-nav-arrow.svg"></button> + <nav class="sub_pages collapsed"> + + + + + <li><a href="/docs/latest//machine-learning/model-selection/introduction" class=''>Introduction</a></li> + + + + <li><a href="/docs/latest//machine-learning/model-selection/evaluator" class=''>Evaluator</a></li> + + + + <li><a href="/docs/latest//machine-learning/model-selection/split-the-dataset-on-test-and-train-datasets" class=''>Split the dataset on test and train datasets</a></li> + + + + <li><a href="/docs/latest//machine-learning/model-selection/hyper-parameter-tuning" class=''>Hyper-parameter tuning</a></li> + + + + <li><a href="/docs/latest//machine-learning/model-selection/pipeline-api" class=''>Pipeline API</a></li> + + </nav> + + </li> + + + + + + <li> + + <a href="/docs/latest/machine-learning/multiclass-classification" + + class='' + >Multiclass Classification</a> + + </li> + + + + + + <li> + + + + <button + type='button' + class='collapsed '>Ensemble Methods<img class="state-indicator" src="/assets/images/left-nav-arrow.svg"></button> + <nav 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+ + + + + + <li> + + <a href="/docs/latest/sql-reference/operational-commands" + + class='' + >Operational Commands</a> + + </li> + + + + + + <li> + + <a href="/docs/latest/sql-reference/aggregate-functions" + + class='' + >Aggregate functions</a> + + </li> + + + + + + <li> + + <a href="/docs/latest/sql-reference/numeric-functions" + + class='' + >Numeric Functions</a> + + </li> + + + + + + <li> + + <a href="/docs/latest/sql-reference/string-functions" + + class='' + >String Functions</a> + + </li> + + + + + + <li> + + <a href="/docs/latest/sql-reference/date-time-functions" + + class='' + >Data and Time Functions</a> + + </li> + + + + + + <li> + + <a href="/docs/latest/sql-reference/system-functions" + + class='' + >System Functions</a> + + </li> + + + + + + <li> + + <a href="/docs/latest/sql-reference/data-types" + + class='' + >Data Types</a> + + </li> + + + + </nav> + + </li> + +</nav> +<div class="left-nav__overlay"></div> + + + <article data-swiftype-index='true'> + <a class='edit-link' href="https://github.com/apache/ignite/tree/IGNITE-7595/docs/_docs/persistence/snapshots.adoc"; target="_blank">Edit</a> + + <h1>Cluster Snapshots</h1> + + <div class="sect1"> +<h2 id="overview">Overview</h2> +<div class="sectionbody"> +<div class="paragraph"> +<p>Ignite provides an ability to create full cluster snapshots for deployments using +<a href="/docs/latest/persistence/native-persistence">Ignite Persistence</a>. An Ignite snapshot includes a consistent cluster-wide copy of +all data records persisted on disk and some other files needed for a recovery procedure.</p> +</div> +<div class="paragraph"> +<p>The snapshot structure is similar to the layout of the +<a href="/docs/latest/persistence/native-persistence#configuring-persistent-storage-directory">Ignite Persistence storage directory</a>, +with several exceptions. Let’s take this snapshot as an example to review the structure:</p> +</div> +<div class="listingblock"> +<div class="content"> +<pre class="rouge highlight"><code data-lang="shell">work +└── snapshots + └── backup23012020 + ├── binary_meta + │ ├── node1 + │ ├── node2 + │ └── node3 + ├── db + │ ├── node1 + │ │ └── my-sample-cache + │ │ ├── cache_data.dat + │ │ ├── part-3.bin + │ │ ├── part-4.bin + │ │ └── part-6.bin + │ ├── node2 + │ │ └── my-sample-cache + │ │ ├── cache_data.dat + │ │ ├── part-1.bin + │ │ ├── part-5.bin + │ │ └── part-7.bin + │ └── node3 + │ └── my-sample-cache + │ ├── cache_data.dat + │ ├── part-0.bin + │ └── part-2.bin + └── marshaller</code></pre> +</div> +</div> +<div class="ulist"> +<ul> +<li> +<p>The snapshot is located under the <code>work\snapshots</code> directory and named as <code>backup23012020</code> where <code>work</code> is Ignite’s work +directory.</p> +</li> +<li> +<p>The snapshot is created for a 3-node cluster with all the nodes running on the same machine. In this example, +the nodes are named as <code>node1</code>, <code>node2</code>, and <code>node3</code>, while in practice, the names are equal to nodes' +<a href="https://cwiki.apache.org/confluence/display/IGNITE/Ignite+Persistent+Store+-+under+the+hood#IgnitePersistentStoreunderthehood-SubfoldersGeneration";>consistent IDs</a>.</p> +</li> +<li> +<p>The snapshot keeps a copy of the <code>my-sample-cache</code> cache.</p> +</li> +<li> +<p>The <code>db</code> folder keeps a copy of data records in <code>part-N.bin</code> and <code>cache_data.dat</code> files. Write-ahead and checkpointing +are not added into the snapshot as long as those are not required for the current recovery procedure.</p> +</li> +<li> +<p>The <code>binary_meta</code> and <code>marshaller</code> directories store metadata and marshaller-specific information needed for the recovery.</p> +</li> +</ul> +</div> +<div class="admonitionblock note"> +<table> +<tr> +<td class="icon"> +<div class="title">Note</div> +</td> +<td class="content"> +<h3 id="usually-snapshot-is-spread-across-the-cluster" class="discrete">Usually Snapshot is Spread Across the Cluster</h3> +<div class="paragraph"> +<p>The previous example shows the snapshot created for the cluster running on the same physical machine. Thus, the whole +snapshot is located in a single place. While in practice, all the nodes will be running on different machines having the +snapshot data spread across the cluster. Each node keeps a segment of the snapshot with the data belonging to this particular node. +The <a href="/docs/latest/persistence/snapshots#restoring-from-snapshot">restore procedure</a> explains how to tether together all the segments during recovery.</p> +</div> +</td> +</tr> +</table> +</div> +</div> +</div> +<div class="sect1"> +<h2 id="configuring-snapshot-directory">Configuring Snapshot Directory</h2> +<div class="sectionbody"> +<div class="paragraph"> +<p>By default, a segment of the snapshot is stored in the work directory of a respective Ignite node and uses the same storage +media where Ignite Persistence keeps data, index, WAL, and other files. Since the snapshot can consume as much space as +already taken by the persistence files and can affect your applications' performance by sharing the disk I/O with the +Ignite Persistence routines, it’s suggested to store the snapshot and persistence files on different media.</p> +</div> +<div class="paragraph"> +<p>You can avoid this interference between Ignite Native persistence and snapshotting +by either changing <a href="/docs/latest/persistence/native-persistence#configuring-persistent-storage-directory">storage directories of the persistence files</a> +or overriding the default snapshots' location as shown below:</p> +</div> +<code-tabs><code-tab data-tab='XML'><div class="listingblock"> +<div class="content"> +<pre class="rouge highlight"><code data-lang="xml"><span class="nt"><bean</span> <span class="na">class=</span><span class="s">"org.apache.ignite.configuration.IgniteConfiguration"</span><span class="nt">></span> + <span class="c"><!-- + Sets a path to the root directory where snapshot files will be persisted. + By default, the `snapshots` directory is placed under the `IGNITE_HOME/db`. + --></span> + <span class="nt"><property</span> <span class="na">name=</span><span class="s">"snapshotPath"</span> <span class="na">value=</span><span class="s">"/snapshots"</span><span class="nt">/></span> + + <span class="nt"><property</span> <span class="na">name=</span><span class="s">"cacheConfiguration"</span><span class="nt">></span> + <span class="nt"><bean</span> <span class="na">class=</span><span class="s">"org.apache.ignite.configuration.CacheConfiguration"</span><span class="nt">></span> + <span class="nt"><property</span> <span class="na">name=</span><span class="s">"name"</span> <span class="na">value=</span><span class="s">"snapshot-cache"</span><span class="nt">/></span> + <span class="nt"></bean></span> + <span class="nt"></property></span> + +<span class="nt"></bean></span></code></pre> +</div> +</div></code-tab><code-tab data-tab='Java'><div class="listingblock"> +<div class="content"> +<pre class="rouge highlight"><code data-lang="java"><span class="nc">IgniteConfiguration</span> <span class="n">cfg</span> <span class="o">=</span> <span class="k">new</span> <span class="nc">IgniteConfiguration</span><span class="o">();</span> + +<span class="nc">File</span> <span class="n">exSnpDir</span> <span class="o">=</span> <span class="no">U</span><span class="o">.</span><span class="na">resolveWorkDirectory</span><span class="o">(</span><span class="no">U</span><span class="o">.</span><span class="na">defaultWorkDirectory</span><span class="o">(),</span> <span class="s">"ex_snapshots"</span><span class="o">,</span> <span class="kc">true</span><span class="o">);</span> + +<span class="n">cfg</span><span class="o">.</span><span class="na">setSnapshotPath</span><span class="o">(</span><span class="n">exSnpDir</span><span class="o">.</span><span class="na">getAbsolutePath</span><span class="o">());</span></code></pre> +</div> +</div></code-tab></code-tabs> +</div> +</div> +<div class="sect1"> +<h2 id="creating-snapshot">Creating Snapshot</h2> +<div class="sectionbody"> +<div class="paragraph"> +<p>Ignite provides several APIs for the snapshot creation. Let’s review all the options.</p> +</div> +<div class="sect2"> +<h3 id="using-control-script">Using Control Script</h3> +<div class="paragraph"> +<p>Ignite ships the <a href="/docs/latest/control-script">control script</a> that supports snapshots-related commands listed below:</p> +</div> +<div class="listingblock"> +<div class="content"> +<pre class="rouge highlight"><code data-lang="shell"><span class="c">#Create a cluster snapshot:</span> +control.<span class="o">(</span>sh|bat<span class="o">)</span> <span class="nt">--snapshot</span> create snapshot_name + +<span class="c">#Cancel a running snapshot:</span> +control.<span class="o">(</span>sh|bat<span class="o">)</span> <span class="nt">--snapshot</span> cancel snapshot_name + +<span class="c">#Kill a running snapshot:</span> +control.<span class="o">(</span>sh|bat<span class="o">)</span> <span class="nt">--kill</span> SNAPSHOT snapshot_name</code></pre> +</div> +</div> +</div> +<div class="sect2"> +<h3 id="using-jmx">Using JMX</h3> +<div class="paragraph"> +<p>Use the <code>SnapshotMXBean</code> interface to perform the snapshot-specific procedures via JMX:</p> +</div> +<table class="tableblock frame-all grid-all stripes-even stretch"> +<colgroup> +<col style="width: 50%;"> +<col style="width: 50%;"> +</colgroup> +<thead> +<tr> +<th class="tableblock halign-left valign-top">Method</th> +<th class="tableblock halign-left valign-top">Description</th> +</tr> +</thead> +<tbody> +<tr> +<td class="tableblock halign-left valign-top"><p class="tableblock">createSnapshot(String snpName)</p></td> +<td class="tableblock halign-left valign-top"><p class="tableblock">Create a snapshot.</p></td> +</tr> +<tr> +<td class="tableblock halign-left valign-top"><p class="tableblock">cancelSnapshot(String snpName)</p></td> +<td class="tableblock halign-left valign-top"><p class="tableblock">Cancel a snapshot on the node initiated its creation.</p></td> +</tr> +</tbody> +</table> +</div> +<div class="sect2"> +<h3 id="using-java-api">Using Java API</h3> +<div class="paragraph"> +<p>Also, it’s possible to create a snapshot programmatically in Java:</p> +</div> +<code-tabs><code-tab data-tab='Java'><div class="listingblock"> +<div class="content"> +<pre class="rouge highlight"><code data-lang="java"><span class="nc">CacheConfiguration</span><span class="o"><</span><span class="nc">Long</span><span class="o">,</span> <span class="nc">String</span><span class="o">></span> <span class="n">ccfg</span> <span class="o">=</span> <span class="k">new</span> <span class="nc">CacheConfiguration</span><span class="o"><</span><span class="nc">Long</span><span class="o">,</span> <span class="nc">String</span><span class="o">>(</span> [...] + +<span class="k">try</span> <span class="o">(</span><span class="nc">IgniteCache</span><span class="o"><</span><span class="nc">Long</span><span class="o">,</span> <span class="nc">String</span><span class="o">></span> <span class="n">cache</span> <span class="o">=</span> <span class="n">ignite</span><span class="o">.</span><span class="na">getOrCreateCache</span><span class="o">(</span><span class="n">ccfg</span><span class="o">))</span> <span class="o">{</span> + <span class="n">cache</span><span class="o">.</span><span class="na">put</span><span class="o">(</span><span class="mi">1</span><span class="o">,</span> <span class="s">"Maxim"</span><span class="o">);</span> + + <span class="c1">// Start snapshot operation.</span> + <span class="n">ignite</span><span class="o">.</span><span class="na">snapshot</span><span class="o">().</span><span class="na">createSnapshot</span><span class="o">(</span><span class="s">"snapshot_02092020"</span><span class="o">).</span><span class="na">get</span><span class="o">();</span> +<span class="o">}</span> +<span class="k">finally</span> <span class="o">{</span> + <span class="n">ignite</span><span class="o">.</span><span class="na">destroyCache</span><span class="o">(</span><span class="n">ccfg</span><span class="o">);</span> +<span class="o">}</span></code></pre> +</div> +</div></code-tab></code-tabs> +</div> +</div> +</div> +<div class="sect1"> +<h2 id="restoring-from-snapshot">Restoring From Snapshot</h2> +<div class="sectionbody"> +<div class="paragraph"> +<p>Currently, the data restore procedure has to be performed manually. In a nutshell, you need to stop the cluster, +replace persistence data and other files with the data from the snapshot, and restart the nodes. The detailed procedure +looks as follows:</p> +</div> +<div class="olist arabic"> +<ol class="arabic"> +<li> +<p>Stop the cluster you intend to restore</p> +</li> +<li> +<p>Do the following on each node:</p> +<div class="ulist"> +<ul> +<li> +<p>Remove all the files and directories under the <code>$IGNITE_HOME/work/{node_id}</code> directory. Clean the +<a href="/docs/latest/link:persistence/native-persistence#configuring-persistent-storage-directory"><code>db/{node_id}</code></a> directory separately if +it’s not located under the Ignite <code>work</code> dir.</p> +</li> +<li> +<p>Copy the files of belonging to a node with the <code>{node_id}</code> from the snapshot into the <code>$IGNITE_HOME/work/{node_id}</code> directory. +If the <code>db/{node_id}</code> directory is not located under the Ignite <code>work</code> dir then you need to copy data files there.</p> +</li> +</ul> +</div> +</li> +<li> +<p>Restart the cluster</p> +</li> +</ol> +</div> +<div class="paragraph"> +<p><strong>Restore On Cluster of Different Topology</strong></p> +</div> +<div class="paragraph"> +<p>Sometimes you might want to create a snapshot of an N-node cluster and use it to restore on an M-node cluster. The table +below explains what options are supported:</p> +</div> +<table class="tableblock frame-all grid-all stripes-even stretch"> +<colgroup> +<col style="width: 50%;"> +<col style="width: 50%;"> +</colgroup> +<thead> +<tr> +<th class="tableblock halign-left valign-top">Condition</th> +<th class="tableblock halign-left valign-top">Description</th> +</tr> +</thead> +<tbody> +<tr> +<td class="tableblock halign-left valign-top"><p class="tableblock">N == M</p></td> +<td class="tableblock halign-left valign-top"><p class="tableblock">The <strong>recommended</strong> case. Create and use the snapshot on clusters of a similar topology.</p></td> +</tr> +<tr> +<td class="tableblock halign-left valign-top"><p class="tableblock">N < M</p></td> +<td class="tableblock halign-left valign-top"><p class="tableblock">Start the first N nodes of the M-node cluster and apply the snapshot. Add the rest of the M-cluster nodes to +the topology and wait while the data gets rebalanced and indexes are rebuilt.</p></td> +</tr> +<tr> +<td class="tableblock halign-left valign-top"><p class="tableblock">N > M</p></td> +<td class="tableblock halign-left valign-top"><p class="tableblock">Unsupported.</p></td> +</tr> +</tbody> +</table> +</div> +</div> +<div class="sect1"> +<h2 id="consistency-guarantees">Consistency Guarantees</h2> +<div class="sectionbody"> +<div class="paragraph"> +<p>All snapshots are fully consistent in terms of concurrent cluster-wide operations as well as ongoing changes with Ignite +Persistence and other files on nodes.</p> +</div> +<div class="paragraph"> +<p>The cluster-wide snapshot consistency is achieved by triggering the <a href="https://cwiki.apache.org/confluence/display/IGNITE/%28Partition+Map%29+Exchange+-+under+the+hood";>Partition-Map-Exchange</a> +procedure. By doing that, the cluster will eventually get to the point in time when all previously started transactions are completed, and new +ones are paused. Once this happens, the cluster initiates the snapshot creation procedure.</p> +</div> +<div class="paragraph"> +<p>The consistency between the primary Ignite Persistence files and their snapshot copies is achieved by copying the primary +files to the destination snapshot directory with tracking all concurrent ongoing changes. The tracking of the changes +might require extra space on your storage media.</p> +</div> +</div> +</div> +<div class="sect1"> +<h2 id="current-limitations">Current Limitations</h2> +<div class="sectionbody"> +<div class="paragraph"> +<p>The snapshot procedure has some limitations that you should be aware of before using the feature in your production environment:</p> +</div> +<div class="ulist"> +<ul> +<li> +<p>Snapshotting of specific caches/tables is unsupported. You always create a full cluster snapshot.</p> +</li> +<li> +<p>Incremental snapshots are not supported.</p> +</li> +<li> +<p>Caches/tables that are not persisted in Ignite Persistence are not added into the snapshot.</p> +</li> +<li> +<p>Encrypted caches are not included in the snapshot.</p> +</li> +<li> +<p>You can have only one snapshotting operation running at a time.</p> +</li> +<li> +<p>The snapshot procedure is interrupted if the cluster topology changes (new node join the cluster or some leave it).</p> +</li> +<li> +<p>Snapshot may be restored only at the same cluster topology with the same node IDs;</p> +</li> +<li> +<p>The automatic restore procedure is not available yet. You have to restore it manually.</p> +</li> +</ul> +</div> +<div class="paragraph"> +<p>If any of these limitations prevent you from using Apache Ignite, then select alternate snapshotting implementations for +Ignite provided by enterprise vendors.</p> +</div> +</div> +</div> + <div class="copyright"> + © 2020 The Apache Software Foundation.<br/> +Apache, Apache Ignite, the Apache feather and the Apache Ignite logo are either registered trademarks or trademarks of The Apache Software Foundation. + +</div> + + </article> + <nav class="right-nav" data-swiftype-index='false'> + <ul class="sectlevel1"> +<li><a href="#overview">Overview</a></li> +<li><a href="#configuring-snapshot-directory">Configuring Snapshot Directory</a></li> +<li><a href="#creating-snapshot">Creating Snapshot</a> +<ul class="sectlevel2"> +<li><a href="#using-control-script">Using Control Script</a></li> +<li><a href="#using-jmx">Using JMX</a></li> +<li><a href="#using-java-api">Using Java API</a></li> +</ul> +</li> +<li><a href="#restoring-from-snapshot">Restoring From Snapshot</a></li> +<li><a href="#consistency-guarantees">Consistency Guarantees</a></li> +<li><a href="#current-limitations">Current Limitations</a></li> +</ul> + + +<footer> +</footer> + +</nav> + +</section> +<script type='module' src='/assets/js/code-copy-to-clipboard.js' async crossorigin></script> + + <script> + // inits deep anchors -- needs to be done here because of https://www.bryanbraun.com/anchorjs/#dont-run-it-too-late + anchors.add('.page-docs h1, .page-docs h2, .page-docs h3:not(.discrete), .page-docs h4, .page-docs h5'); + anchors.options = { + placement: 'right', + visible: 'always' + }; + </script> + <!-- load google fonts async --> + <script type="text/javascript"> + WebFontConfig = { + google: { families: [ 'Open+Sans:300,400,600,700&display=swap' ] } + }; + (function() { + var wf = document.createElement('script'); + wf.src = 'https://ajax.googleapis.com/ajax/libs/webfont/1/webfont.js'; + wf.type = 'text/javascript'; + wf.async = 'true'; + var s = document.getElementsByTagName('script')[0]; + s.parentNode.insertBefore(wf, s); + })(); </script> + <script src="https://cdn.jsdelivr.net/npm/docsearch.js@2/dist/cdn/docsearch.min.js";></script> + <script> + docsearch({ + // Your apiKey and indexName will be given to you once + // we create your config + apiKey: '3eee686c0ebe39eff3baeb18c56fa5f8', + indexName: 'apache_ignite', + // Replace inputSelector with a CSS selector + // matching your search input + inputSelector: '#search-input', + // algoliaOptions: { 'facetFilters': ["version:$VERSION"] }, + + // Set debug to true to inspect the dropdown + debug: false, + }); + </script> +<script type='module' src='/assets/js/index.js?1600372553' async crossorigin></script> +<script type='module' src='/assets/js/versioning.js?1600372553' async crossorigin></script> +</body> + +</html> diff --git a/includes/promotion_banner.html b/includes/promotion_banner.html new file mode 100644 index 0000000..66a7f73 --- /dev/null +++ b/includes/promotion_banner.html @@ -0,0 +1,10 @@ +<div id="promotion-bar"> + <p> + Apache Ignite Track at ApacheCon@Home 2020: + <a href="https://www.apachecon.com/acna2020/tracks/ignite.html"; + rel="noopener" target="_blank" + onclick="gtag('event', 'banner_click', { 'event_category': 'ignite_tech_talk', 'event_label': 'apachecon-home-202'});"> + Join talks by our committers + </a> + </p> +</div> \ No newline at end of file
