| <!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 charset="UTF-8"> |
| <meta name="ignite-version" content="2.9.0" /> |
| <title>Memory and JVM Tuning | Ignite Documentation</title> |
| |
| <link rel="canonical" href="/docs/2.9.0/perf-and-troubleshooting/memory-tuning" /> |
| <META NAME="ROBOTS" CONTENT="NOINDEX" /> |
| |
| |
| <link rel="stylesheet" href="/assets/css/styles.css?1609302782"> |
| <link rel="stylesheet" href="/assets/css/asciidoc-pygments.css"> |
| <link rel="shortcut icon" href="/favicon.ico"> |
| <meta name='viewport' content='width=device-width, height=device-height, initial-scale=1.0, minimum-scale=1.0'> |
| |
| <script type="text/javascript" src="/assets/js/anchor.min.js?1609302782"></script> |
| |
| <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/docsearch.js@2/dist/cdn/docsearch.min.css" /> |
| |
| |
| </head> |
| <body> |
| <header> |
| <!--#include virtual="/includes/promotion_banner.html" --> |
| <div class="container"> |
| <button type='button' class='menu' title='Docs menu'> |
| <img src="/assets/images/menu-icon.svg"/> |
| </button> |
| <div class='home'> |
| <a href="/" class='home' title='Apache Ignite home'> |
| <img src="/assets/images/apache_ignite_logo.svg" alt="Apache Ignite logo" width="103" > |
| </a> |
| </div> |
| |
| |
| <select id="version-selector"> |
| <option value="2.9.0">2.9.0</option> |
| </select> |
| |
| <nav id="api-docs"> |
| <li><a href="#">APIs</a> |
| |
| <nav class='dropdown'> |
| <li class="dropdown-item"><a href="/releases/latest/javadoc/index.html">Java</a></li> |
| |
| <li class="dropdown-item"><a href="/releases/latest/dotnetdoc/api/">C#/.NET</a></li> |
| |
| <li class="dropdown-item"><a href="/releases/latest/cppdoc/index.html">C++</a></li> |
| |
| <li class="dropdown-item"><a href="/releases/latest/scaladoc/scalar/index.html#org.apache.ignite.scalar.scalar$">Scala</a></li> |
| |
| </nav> |
| </li> |
| |
| <li><a href="#">Examples</a> |
| <nav class="dropdown"> |
| <li class="dropdown-item"><a href="https://github.com/apache/ignite/tree/master/examples" target="_blank" rel="noopener" title="Apache Ignite Java examples">Java</a></li> |
| |
| <li class="dropdown-item"><a href="https://github.com/apache/ignite/tree/master/modules/platforms/dotnet/examples" target="_blank" rel="noopener" title="Apache Ignite C#/.NET examples">C#/.NET</a></li> |
| |
| <li class="dropdown-item"><a href="https://github.com/apache/ignite/tree/master/modules/platforms/cpp/examples" target="_blank" rel="noopener" title="Apache Ignite C++ examples">C++</a></li> |
| |
| <li class="dropdown-item"><a href="https://github.com/apache/ignite/tree/master/modules/platforms/python/examples" target="_blank" rel="noopener" title="Apache Ignite Python examples">Python</a></li> |
| |
| <li class="dropdown-item"><a href="https://github.com/apache/ignite/tree/master/modules/platforms/nodejs/examples" target="_blank" rel="noopener" title="Apache Ignite NodeJS examples">NodeJS</a></li> |
| |
| <li class="dropdown-item"><a href="https://github.com/apache/ignite/tree/master/modules/platforms/php/examples" target="_blank" rel="noopener" title="Apache Ignite PHP examples">PHP</a></li> |
| </nav> |
| </li> |
| </nav> |
| |
| <form class='search'> |
| <button class="search-close" type='button'><img src='/assets/images/cancel.svg'></button> |
| <input type="search" placeholder="Search…" id="search-input"> |
| </form> |
| <button type='button' class='search-toggle'><img src='/assets/images/search.svg'></button> |
| |
| <nav id="lang-selector"> |
| <li><a href="#"><img src="/assets/images/icon_lang_en.png" alt="English language icon" /><span>▼</span></a> |
| <nav class="dropdown"> |
| <li class="dropdown-item"><a href="/docs/latest/" ><img src="/assets/images/icon_lang_en.png" alt="English language icon" /><span>English</span></a></li> |
| <li class="dropdown-item"><a href="https://www.ignite-service.cn/doc/java/" target="_blank" rel="noopener"><img src="/assets/images/icon_lang_cn.png" alt="Chinese language icon" /><span>Chinese</span></a></li> |
| </nav> |
| </li> |
| </nav> |
| |
| <button type='button' class='top-nav-toggle'>⋮</button> |
| |
| |
| |
| </div> |
| </header> |
| |
| |
| <link rel="stylesheet" href="/assets/css/docs.css"> |
| <section class='page-docs'> |
| |
| |
| |
| |
| |
| |
| <nav class='left-nav' data-swiftype-index='false'> |
| |
| |
| <li> |
| |
| |
| <a href="/docs/2.9.0/index" class='' >Documentation Overview</a> |
| |
| </li> |
| |
| <li> |
| |
| |
| |
| |
| |
| |
| <button type='button' class='group-toggle collapsed '>Quick Start Guides<img class="state-indicator" src="/assets/images/left-nav-arrow.svg"></button> |
| <nav class='nav-group collapsed'> |
| |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/quick-start/java" |
| class='' |
| >Java</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/quick-start/dotnet" |
| class='' |
| >.NET/C#</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/quick-start/cpp" |
| class='' |
| >C++</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/quick-start/python" |
| class='' |
| >Python</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/quick-start/nodejs" |
| class='' |
| >Node.JS</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/quick-start/sql" |
| class='' |
| >SQL</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/quick-start/php" |
| class='' |
| >PHP</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/quick-start/restapi" |
| class='' |
| >REST API</a> |
| |
| </li> |
| |
| |
| |
| </nav> |
| |
| </li> |
| |
| <li> |
| |
| |
| |
| |
| |
| |
| <button type='button' class='group-toggle collapsed '>Installation<img class="state-indicator" src="/assets/images/left-nav-arrow.svg"></button> |
| <nav class='nav-group collapsed'> |
| |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/installation/installing-using-zip" |
| class='' |
| >Installing Using ZIP Archive</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/installation/installing-using-docker" |
| class='' |
| >Installing Using Docker</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/installation/deb-rpm" |
| class='' |
| >Installing DEB or RPM package</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| |
| |
| <button |
| type='button' |
| class='collapsed '>Kubernetes<img class="state-indicator" src="/assets/images/left-nav-arrow.svg"></button> |
| <nav class="sub_pages collapsed"> |
| |
| |
| |
| |
| |
| <li><a href="/docs/2.9.0/installation/kubernetes/amazon-eks-deployment" class=''>Amazon EKS</a></li> |
| |
| |
| |
| |
| <li><a href="/docs/2.9.0/installation/kubernetes/azure-deployment" class=''>Azure Kubernetes Service</a></li> |
| |
| |
| |
| |
| <li><a href="/docs/2.9.0/installation/kubernetes/gke-deployment" class=''>Google Kubernetes Engine</a></li> |
| |
| </nav> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/installation/vmware-installation" |
| class='' |
| >VMWare</a> |
| |
| </li> |
| |
| |
| |
| </nav> |
| |
| </li> |
| |
| <li> |
| |
| |
| |
| |
| |
| |
| <button type='button' class='group-toggle collapsed '>Setting Up<img class="state-indicator" src="/assets/images/left-nav-arrow.svg"></button> |
| <nav class='nav-group collapsed'> |
| |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/understanding-configuration" |
| class='' |
| >Understanding Configuration</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/setup" |
| class='' |
| >Setting Up</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/logging" |
| class='' |
| >Configuring Logging</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/resources-injection" |
| class='' |
| >Resources Injection</a> |
| |
| </li> |
| |
| |
| |
| </nav> |
| |
| </li> |
| |
| <li> |
| |
| |
| <a href="/docs/2.9.0/starting-nodes" class='' >Starting and Stopping Nodes</a> |
| |
| </li> |
| |
| <li> |
| |
| |
| |
| |
| |
| |
| <button type='button' class='group-toggle collapsed '>Clustering<img class="state-indicator" src="/assets/images/left-nav-arrow.svg"></button> |
| <nav class='nav-group collapsed'> |
| |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/clustering/clustering" |
| class='' |
| >Overview</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/clustering/tcp-ip-discovery" |
| class='' |
| >TCP/IP Discovery</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/clustering/zookeeper-discovery" |
| class='' |
| >ZooKeeper Discovery</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/clustering/discovery-in-the-cloud" |
| class='' |
| >Discovery in the Cloud</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/clustering/network-configuration" |
| class='' |
| >Network Configuration</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/clustering/connect-client-nodes" |
| class='' |
| >Connecting Client Nodes</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/clustering/baseline-topology" |
| class='' |
| >Baseline Topology</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/clustering/running-client-nodes-behind-nat" |
| class='' |
| >Running Client Nodes Behind NAT</a> |
| |
| </li> |
| |
| |
| |
| </nav> |
| |
| </li> |
| |
| <li> |
| |
| |
| |
| |
| |
| |
| <button type='button' class='group-toggle collapsed '>Thin Clients<img class="state-indicator" src="/assets/images/left-nav-arrow.svg"></button> |
| <nav class='nav-group collapsed'> |
| |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/thin-clients/getting-started-with-thin-clients" |
| class='' |
| >Thin Clients Overview</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/thin-clients/java-thin-client" |
| class='' |
| >Java Thin Client</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/thin-clients/dotnet-thin-client" |
| class='' |
| >.NET Thin Client</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/thin-clients/cpp-thin-client" |
| class='' |
| >C++ Thin Client</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/thin-clients/python-thin-client" |
| class='' |
| >Python Thin Client</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/thin-clients/php-thin-client" |
| class='' |
| >PHP Thin Client</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/thin-clients/nodejs-thin-client" |
| class='' |
| >Node.js Thin Client</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| |
| |
| <button |
| type='button' |
| class='collapsed '>Binary Client Protocol<img class="state-indicator" src="/assets/images/left-nav-arrow.svg"></button> |
| <nav class="sub_pages collapsed"> |
| |
| |
| |
| |
| |
| <li><a href="/docs/2.9.0/binary-client-protocol/binary-client-protocol" class=''>Binary Client Protocol</a></li> |
| |
| |
| |
| |
| <li><a href="/docs/2.9.0/binary-client-protocol/data-format" class=''>Data Format</a></li> |
| |
| |
| |
| |
| <li><a href="/docs/2.9.0/binary-client-protocol/key-value-queries" class=''>Key-Value Queries</a></li> |
| |
| |
| |
| |
| <li><a href="/docs/2.9.0/binary-client-protocol/sql-and-scan-queries" class=''>SQL and Scan Queries</a></li> |
| |
| |
| |
| |
| <li><a href="/docs/2.9.0/binary-client-protocol/binary-type-metadata" class=''>Binary Types Metadata</a></li> |
| |
| |
| |
| |
| <li><a href="/docs/2.9.0/binary-client-protocol/cache-configuration" class=''>Cache Configuration</a></li> |
| |
| </nav> |
| |
| </li> |
| |
| |
| |
| </nav> |
| |
| </li> |
| |
| <li> |
| |
| |
| |
| |
| |
| |
| <button type='button' class='group-toggle collapsed '>Data Modeling<img class="state-indicator" src="/assets/images/left-nav-arrow.svg"></button> |
| <nav class='nav-group collapsed'> |
| |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/data-modeling/data-modeling" |
| class='' |
| >Introduction</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/data-modeling/data-partitioning" |
| class='' |
| >Data Partitioning</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/data-modeling/affinity-collocation" |
| class='' |
| >Affinity Colocation</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/data-modeling/binary-marshaller" |
| class='' |
| >Binary Marshaller</a> |
| |
| </li> |
| |
| |
| |
| </nav> |
| |
| </li> |
| |
| <li> |
| |
| |
| |
| |
| |
| |
| <button type='button' class='group-toggle collapsed '>Configuring Memory<img class="state-indicator" src="/assets/images/left-nav-arrow.svg"></button> |
| <nav class='nav-group collapsed'> |
| |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/memory-architecture" |
| class='' |
| >Memory Architecture</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/memory-configuration/data-regions" |
| class='' |
| >Configuring Data Regions</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/memory-configuration/eviction-policies" |
| class='' |
| >Eviction Policies</a> |
| |
| </li> |
| |
| |
| |
| </nav> |
| |
| </li> |
| |
| <li> |
| |
| |
| |
| |
| |
| |
| <button type='button' class='group-toggle collapsed '>Configuring Persistence<img class="state-indicator" src="/assets/images/left-nav-arrow.svg"></button> |
| <nav class='nav-group collapsed'> |
| |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/persistence/native-persistence" |
| class='' |
| >Ignite Persistence</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/persistence/external-storage" |
| class='' |
| >External Storage</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/persistence/swap" |
| class='' |
| >Swapping</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/persistence/custom-cache-store" |
| class='' |
| >Implementing Custom Cache Store</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/persistence/snapshots" |
| class='' |
| >Cluster Snapshots</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/persistence/disk-compression" |
| class='' |
| >Disk Compression</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/persistence/persistence-tuning" |
| class='' |
| >Tuning Persistence</a> |
| |
| </li> |
| |
| |
| |
| </nav> |
| |
| </li> |
| |
| <li> |
| |
| |
| |
| |
| |
| |
| <button type='button' class='group-toggle collapsed '>Configuring Caches<img class="state-indicator" src="/assets/images/left-nav-arrow.svg"></button> |
| <nav class='nav-group collapsed'> |
| |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/configuring-caches/configuration-overview" |
| class='' |
| >Cache Configuration</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/configuring-caches/configuring-backups" |
| class='' |
| >Configuring Partition Backups</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/configuring-caches/partition-loss-policy" |
| class='' |
| >Partition Loss Policy</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/configuring-caches/atomicity-modes" |
| class='' |
| >Atomicity Modes</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/configuring-caches/expiry-policies" |
| class='' |
| >Expiry Policy</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/configuring-caches/on-heap-caching" |
| class='' |
| >On-Heap Caching</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/configuring-caches/cache-groups" |
| class='' |
| >Cache Groups</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/configuring-caches/near-cache" |
| class='' |
| >Near Caches</a> |
| |
| </li> |
| |
| |
| |
| </nav> |
| |
| </li> |
| |
| <li> |
| |
| |
| <a href="/docs/2.9.0/data-rebalancing" class='' >Data Rebalancing</a> |
| |
| </li> |
| |
| <li> |
| |
| |
| <a href="/docs/2.9.0/data-streaming" class='' >Data Streaming</a> |
| |
| </li> |
| |
| <li> |
| |
| |
| |
| |
| |
| |
| <button type='button' class='group-toggle collapsed '>Using Key-Value API<img class="state-indicator" src="/assets/images/left-nav-arrow.svg"></button> |
| <nav class='nav-group collapsed'> |
| |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/key-value-api/basic-cache-operations" |
| class='' |
| >Basic Cache Operations</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/key-value-api/binary-objects" |
| class='' |
| >Working with Binary Objects</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/key-value-api/using-scan-queries" |
| class='' |
| >Using Scan Queries</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/read-repair" |
| class='' |
| >Read Repair</a> |
| |
| </li> |
| |
| |
| |
| </nav> |
| |
| </li> |
| |
| <li> |
| |
| |
| <a href="/docs/2.9.0/key-value-api/transactions" class='' >Performing Transactions</a> |
| |
| </li> |
| |
| <li> |
| |
| |
| |
| |
| |
| |
| <button type='button' class='group-toggle collapsed '>Working with SQL<img class="state-indicator" src="/assets/images/left-nav-arrow.svg"></button> |
| <nav class='nav-group collapsed'> |
| |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/SQL/sql-introduction" |
| class='' |
| >Introduction</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/SQL/schemas" |
| class='' |
| >Understanding Schemas</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/SQL/indexes" |
| class='' |
| >Defining Indexes</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/SQL/sql-api" |
| class='' |
| >Using SQL API</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/SQL/distributed-joins" |
| class='' |
| >Distributed Joins</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/SQL/sql-transactions" |
| class='' |
| >SQL Transactions</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/SQL/custom-sql-func" |
| class='' |
| >Custom SQL Functions</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/SQL/JDBC/jdbc-driver" |
| class='' |
| >JDBC Driver</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/SQL/JDBC/jdbc-client-driver" |
| class='' |
| >JDBC Client Driver</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| |
| |
| <button |
| type='button' |
| class='collapsed '>ODBC Driver<img class="state-indicator" src="/assets/images/left-nav-arrow.svg"></button> |
| <nav class="sub_pages collapsed"> |
| |
| |
| |
| |
| |
| <li><a href="/docs/2.9.0/SQL/ODBC/odbc-driver" class=''>ODBC Driver</a></li> |
| |
| |
| |
| |
| <li><a href="/docs/2.9.0//SQL/ODBC/connection-string-dsn" class=''>Connection String and DSN</a></li> |
| |
| |
| |
| |
| <li><a href="/docs/2.9.0/SQL/ODBC/querying-modifying-data" class=''>Querying and Modifying Data</a></li> |
| |
| |
| |
| |
| <li><a href="/docs/2.9.0/SQL/ODBC/specification" class=''>Specification</a></li> |
| |
| |
| |
| |
| <li><a href="/docs/2.9.0/SQL/ODBC/data-types" class=''>Data Types</a></li> |
| |
| |
| |
| |
| <li><a href="/docs/2.9.0/SQL/ODBC/error-codes" class=''>Error Codes</a></li> |
| |
| </nav> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/transactions/mvcc" |
| class='' |
| >Multiversion Concurrency Control</a> |
| |
| </li> |
| |
| |
| |
| </nav> |
| |
| </li> |
| |
| <li> |
| |
| |
| |
| |
| |
| |
| <button type='button' class='group-toggle collapsed '>SQL Reference<img class="state-indicator" src="/assets/images/left-nav-arrow.svg"></button> |
| <nav class='nav-group collapsed'> |
| |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/sql-reference/sql-conformance" |
| class='' |
| >SQL Conformance</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/sql-reference/ddl" |
| class='' |
| >Data Definition Language (DDL)</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/sql-reference/dml" |
| class='' |
| >Data Manipulation Language (DML)</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/sql-reference/transactions" |
| class='' |
| >Transactions</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/sql-reference/operational-commands" |
| class='' |
| >Operational Commands</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/sql-reference/aggregate-functions" |
| class='' |
| >Aggregate functions</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/sql-reference/numeric-functions" |
| class='' |
| >Numeric Functions</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/sql-reference/string-functions" |
| class='' |
| >String Functions</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/sql-reference/date-time-functions" |
| class='' |
| >Data and Time Functions</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/sql-reference/system-functions" |
| class='' |
| >System Functions</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/sql-reference/data-types" |
| class='' |
| >Data Types</a> |
| |
| </li> |
| |
| |
| |
| </nav> |
| |
| </li> |
| |
| <li> |
| |
| |
| |
| |
| |
| |
| <button type='button' class='group-toggle collapsed '>Distributed Computing<img class="state-indicator" src="/assets/images/left-nav-arrow.svg"></button> |
| <nav class='nav-group collapsed'> |
| |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/distributed-computing/distributed-computing" |
| class='' |
| >Distributed Computing API</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/distributed-computing/cluster-groups" |
| class='' |
| >Cluster Groups</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/distributed-computing/executor-service" |
| class='' |
| >Executor Service</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/distributed-computing/map-reduce" |
| class='' |
| >MapReduce API</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/distributed-computing/load-balancing" |
| class='' |
| >Load Balancing</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/distributed-computing/fault-tolerance" |
| class='' |
| >Fault Tolerance</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/distributed-computing/job-scheduling" |
| class='' |
| >Job Scheduling</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/distributed-computing/collocated-computations" |
| class='' |
| >Colocating Computations with Data</a> |
| |
| </li> |
| |
| |
| |
| </nav> |
| |
| </li> |
| |
| <li> |
| |
| |
| |
| |
| |
| |
| <button type='button' class='group-toggle collapsed '>Code Deployment<img class="state-indicator" src="/assets/images/left-nav-arrow.svg"></button> |
| <nav class='nav-group collapsed'> |
| |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/code-deployment/deploying-user-code" |
| class='' |
| >Deploying User Code</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/code-deployment/peer-class-loading" |
| class='' |
| >Peer Class Loading</a> |
| |
| </li> |
| |
| |
| |
| </nav> |
| |
| </li> |
| |
| <li> |
| |
| |
| |
| |
| |
| |
| <button type='button' 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/2.9.0/machine-learning/machine-learning" |
| class='' |
| >Machine Learning</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/machine-learning/partition-based-dataset" |
| class='' |
| >Partition Based Dataset</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/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/2.9.0/machine-learning/binary-classification/introduction" class=''>Introduction</a></li> |
| |
| |
| |
| |
| <li><a href="/docs/2.9.0/machine-learning/binary-classification/linear-svm" class=''>Linear SVM (Support Vector Machine)</a></li> |
| |
| |
| |
| |
| <li><a href="/docs/2.9.0/machine-learning/binary-classification/decision-trees" class=''>Decision Trees</a></li> |
| |
| |
| |
| |
| <li><a href="/docs/2.9.0/machine-learning/binary-classification/multilayer-perceptron" class=''>Multilayer Perceptron</a></li> |
| |
| |
| |
| |
| <li><a href="/docs/2.9.0/machine-learning/binary-classification/logistic-regression" class=''>Logistic Regression</a></li> |
| |
| |
| |
| |
| <li><a href="/docs/2.9.0/machine-learning/binary-classification/knn-classification" class=''>k-NN Classification</a></li> |
| |
| |
| |
| |
| <li><a href="/docs/2.9.0/machine-learning/binary-classification/ann" class=''>ANN (Approximate Nearest Neighbor)</a></li> |
| |
| |
| |
| |
| <li><a href="/docs/2.9.0/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/2.9.0/machine-learning/regression/introduction" class=''>Introduction</a></li> |
| |
| |
| |
| |
| <li><a href="/docs/2.9.0/machine-learning/regression/linear-regression" class=''>Linear Regression</a></li> |
| |
| |
| |
| |
| <li><a href="/docs/2.9.0/machine-learning/regression/decision-trees-regression" class=''>Decision Trees Regression</a></li> |
| |
| |
| |
| |
| <li><a href="/docs/2.9.0/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/2.9.0/machine-learning/clustering/introduction" class=''>Introduction</a></li> |
| |
| |
| |
| |
| <li><a href="/docs/2.9.0/machine-learning/clustering/k-means-clustering" class=''>K-Means Clustering</a></li> |
| |
| |
| |
| |
| <li><a href="/docs/2.9.0/machine-learning/clustering/gaussian-mixture" class=''>Gaussian mixture (GMM)</a></li> |
| |
| </nav> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/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/2.9.0/machine-learning/model-selection/introduction" class=''>Introduction</a></li> |
| |
| |
| |
| |
| <li><a href="/docs/2.9.0/machine-learning/model-selection/evaluator" class=''>Evaluator</a></li> |
| |
| |
| |
| |
| <li><a href="/docs/2.9.0/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/2.9.0/machine-learning/model-selection/hyper-parameter-tuning" class=''>Hyper-parameter tuning</a></li> |
| |
| |
| |
| |
| <li><a href="/docs/2.9.0/machine-learning/model-selection/pipeline-api" class=''>Pipeline API</a></li> |
| |
| </nav> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/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 class="sub_pages collapsed"> |
| |
| |
| |
| |
| |
| <li><a href="/docs/2.9.0/machine-learning/ensemble-methods/introduction" class=''></a></li> |
| |
| |
| |
| |
| <li><a href="/docs/2.9.0/machine-learning/ensemble-methods/stacking" class=''>Stacking</a></li> |
| |
| |
| |
| |
| <li><a href="/docs/2.9.0/machine-learning/ensemble-methods/baggin" class=''>Bagging</a></li> |
| |
| |
| |
| |
| <li><a href="/docs/2.9.0/machine-learning/ensemble-methods/random-forest" class=''>Random Forest</a></li> |
| |
| |
| |
| |
| <li><a href="/docs/2.9.0/machine-learning/ensemble-methods/gradient-boosting" class=''>Gradient Boosting</a></li> |
| |
| </nav> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/machine-learning/recommendation-systems" |
| class='' |
| >Recommendation Systems</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| |
| |
| <button |
| type='button' |
| class='collapsed '>Importing Model<img class="state-indicator" src="/assets/images/left-nav-arrow.svg"></button> |
| <nav class="sub_pages collapsed"> |
| |
| |
| |
| |
| |
| <li><a href="/docs/2.9.0/machine-learning/importing-model/introduction" class=''>Introduction</a></li> |
| |
| |
| |
| |
| <li><a href="/docs/2.9.0/machine-learning/importing-model/model-import-from-gxboost" class=''>Import Model from XGBoost</a></li> |
| |
| |
| |
| |
| <li><a href="/docs/2.9.0/machine-learning/importing-model/model-import-from-apache-spark" class=''>Import Model from Apache Spark</a></li> |
| |
| </nav> |
| |
| </li> |
| |
| |
| |
| </nav> |
| |
| </li> |
| |
| <li> |
| |
| |
| <a href="/docs/2.9.0/key-value-api/continuous-queries" class='' >Using Continuous Queries</a> |
| |
| </li> |
| |
| <li> |
| |
| |
| <a href="/docs/2.9.0/services/services" class='' >Using Ignite Services</a> |
| |
| </li> |
| |
| <li> |
| |
| |
| <a href="/docs/2.9.0/messaging" class='' >Using Ignite Messaging</a> |
| |
| </li> |
| |
| <li> |
| |
| |
| |
| |
| |
| |
| <button type='button' class='group-toggle collapsed '>Distributed Data Structures<img class="state-indicator" src="/assets/images/left-nav-arrow.svg"></button> |
| <nav class='nav-group collapsed'> |
| |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/data-structures/queue-and-set" |
| class='' |
| >Queue and Set</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/data-structures/atomic-types" |
| class='' |
| >Atomic Types</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/data-structures/countdownlatch" |
| class='' |
| >CountDownLatch</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/data-structures/atomic-sequence" |
| class='' |
| >Atomic Sequence</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/data-structures/semaphore" |
| class='' |
| >Semaphore</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/data-structures/id-generator" |
| class='' |
| >ID Generator</a> |
| |
| </li> |
| |
| |
| |
| </nav> |
| |
| </li> |
| |
| <li> |
| |
| |
| <a href="/docs/2.9.0/distributed-locks" class='' >Distributed Locks</a> |
| |
| </li> |
| |
| <li> |
| |
| |
| <a href="/docs/2.9.0/restapi" class='' >REST API</a> |
| |
| </li> |
| |
| <li> |
| |
| |
| |
| |
| |
| |
| <button type='button' class='group-toggle collapsed '>.NET Specific<img class="state-indicator" src="/assets/images/left-nav-arrow.svg"></button> |
| <nav class='nav-group collapsed'> |
| |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/net-specific/net-configuration-options" |
| class='' |
| >Configuration Options</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/net-specific/net-deployment-options" |
| class='' |
| >Deployment Options</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/net-specific/net-standalone-nodes" |
| class='' |
| >Standalone Nodes</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/net-specific/net-logging" |
| class='' |
| >Logging</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/net-specific/net-linq" |
| class='' |
| >LINQ</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/net-specific/net-java-services-execution" |
| class='' |
| >Java Services Execution</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/net-specific/net-platform-cache" |
| class='' |
| >.NET Platform Cache</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/net-specific/net-plugins" |
| class='' |
| >Plugins</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/net-specific/net-serialization" |
| class='' |
| >Serialization</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/net-specific/net-cross-platform-support" |
| class='' |
| >Cross-Platform Support</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/net-specific/net-platform-interoperability" |
| class='' |
| >Platform Interoperability</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/net-specific/net-remote-assembly-loading" |
| class='' |
| >Remote Assembly Loading</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/net-specific/net-troubleshooting" |
| class='' |
| >Troubleshooting</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| |
| |
| <button |
| type='button' |
| class='collapsed '>Integrations<img class="state-indicator" src="/assets/images/left-nav-arrow.svg"></button> |
| <nav class="sub_pages collapsed"> |
| |
| |
| |
| |
| |
| <li><a href="/docs/2.9.0/net-specific/asp-net-output-caching" class=''>ASP.NET Output Caching</a></li> |
| |
| |
| |
| |
| <li><a href="/docs/2.9.0/net-specific/asp-net-session-state-caching" class=''>ASP.NET Session State Caching</a></li> |
| |
| |
| |
| |
| <li><a href="/docs/2.9.0/net-specific/net-entity-framework-cache" class=''>Entity Framework 2nd Level Cache</a></li> |
| |
| </nav> |
| |
| </li> |
| |
| |
| |
| </nav> |
| |
| </li> |
| |
| <li> |
| |
| |
| |
| |
| |
| |
| <button type='button' class='group-toggle collapsed '>C++ Specific<img class="state-indicator" src="/assets/images/left-nav-arrow.svg"></button> |
| <nav class='nav-group collapsed'> |
| |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/cpp-specific/cpp-serialization" |
| class='' |
| >Serialization</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/cpp-specific/cpp-platform-interoperability" |
| class='' |
| >Platform Interoperability</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/cpp-specific/cpp-objects-lifetime" |
| class='' |
| >Objects Lifetime</a> |
| |
| </li> |
| |
| |
| |
| </nav> |
| |
| </li> |
| |
| <li> |
| |
| |
| |
| |
| |
| |
| <button type='button' class='group-toggle collapsed '>Monitoring<img class="state-indicator" src="/assets/images/left-nav-arrow.svg"></button> |
| <nav class='nav-group collapsed'> |
| |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/monitoring-metrics/intro" |
| class='' |
| >Introduction</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/monitoring-metrics/cluster-id" |
| class='' |
| >Cluster ID and Tag</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/monitoring-metrics/cluster-states" |
| class='' |
| >Cluster States</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| |
| |
| <button |
| type='button' |
| class='collapsed '>Metrics<img class="state-indicator" src="/assets/images/left-nav-arrow.svg"></button> |
| <nav class="sub_pages collapsed"> |
| |
| |
| |
| |
| |
| <li><a href="/docs/2.9.0/monitoring-metrics/configuring-metrics" class=''>Configuring Metrics</a></li> |
| |
| |
| |
| |
| <li><a href="/docs/2.9.0/monitoring-metrics/metrics" class=''>JMX Metrics</a></li> |
| |
| </nav> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| |
| |
| <button |
| type='button' |
| class='collapsed '>New Metrics System<img class="state-indicator" src="/assets/images/left-nav-arrow.svg"></button> |
| <nav class="sub_pages collapsed"> |
| |
| |
| |
| |
| |
| <li><a href="/docs/2.9.0/monitoring-metrics/new-metrics-system" class=''>Introduction</a></li> |
| |
| |
| |
| |
| <li><a href="/docs/2.9.0/monitoring-metrics/new-metrics" class=''>Metrics</a></li> |
| |
| </nav> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/monitoring-metrics/system-views" |
| class='' |
| >System Views</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/monitoring-metrics/tracing" |
| class='' |
| >Tracing</a> |
| |
| </li> |
| |
| |
| |
| </nav> |
| |
| </li> |
| |
| <li> |
| |
| |
| |
| |
| |
| |
| <button type='button' class='group-toggle collapsed '>Working with Events<img class="state-indicator" src="/assets/images/left-nav-arrow.svg"></button> |
| <nav class='nav-group collapsed'> |
| |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/events/listening-to-events" |
| class='' |
| >Enabling and Listenting to Events</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/events/events" |
| class='' |
| >Events</a> |
| |
| </li> |
| |
| |
| |
| </nav> |
| |
| </li> |
| |
| <li> |
| |
| |
| |
| |
| |
| |
| <button type='button' class='group-toggle collapsed '>Tools<img class="state-indicator" src="/assets/images/left-nav-arrow.svg"></button> |
| <nav class='nav-group collapsed'> |
| |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/tools/control-script" |
| class='' |
| >Control Script</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/tools/visor-cmd" |
| class='' |
| >Visor CMD</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/tools/gg-control-center" |
| class='' |
| >GridGain Control Center</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/tools/sqlline" |
| class='' |
| >SQLLine</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/tools/tableau" |
| class='' |
| >Tableau</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/tools/informatica" |
| class='' |
| >Informatica</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/tools/pentaho" |
| class='' |
| >Pentaho</a> |
| |
| </li> |
| |
| |
| |
| </nav> |
| |
| </li> |
| |
| <li> |
| |
| |
| |
| |
| |
| |
| <button type='button' class='group-toggle collapsed '>Security<img class="state-indicator" src="/assets/images/left-nav-arrow.svg"></button> |
| <nav class='nav-group collapsed'> |
| |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/security/authentication" |
| class='' |
| >Authentication</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/security/ssl-tls" |
| class='' |
| >SSL/TLS</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| |
| |
| <button |
| type='button' |
| class='collapsed '>Transparent Data Encryption<img class="state-indicator" src="/assets/images/left-nav-arrow.svg"></button> |
| <nav class="sub_pages collapsed"> |
| |
| |
| |
| |
| |
| <li><a href="/docs/2.9.0/security/tde" class=''>Introduction</a></li> |
| |
| |
| |
| |
| <li><a href="/docs/2.9.0/security/master-key-rotation" class=''>Master key rotation</a></li> |
| |
| </nav> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/security/sandbox" |
| class='' |
| >Sandbox</a> |
| |
| </li> |
| |
| |
| |
| </nav> |
| |
| </li> |
| |
| <li> |
| |
| |
| |
| |
| |
| |
| <button type='button' class='group-toggle collapsed '>Extensions and Integrations<img class="state-indicator" src="/assets/images/left-nav-arrow.svg"></button> |
| <nav class='nav-group collapsed'> |
| |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| |
| |
| <button |
| type='button' |
| class='collapsed '>Spring<img class="state-indicator" src="/assets/images/left-nav-arrow.svg"></button> |
| <nav class="sub_pages collapsed"> |
| |
| |
| |
| |
| |
| <li><a href="/docs/2.9.0/extensions-and-integrations/spring/spring-boot" class=''>Spring Boot</a></li> |
| |
| |
| |
| |
| <li><a href="/docs/2.9.0/extensions-and-integrations/spring/spring-data" class=''>Spring Data</a></li> |
| |
| |
| |
| |
| <li><a href="/docs/2.9.0/extensions-and-integrations/spring/spring-caching" class=''>Spring Caching</a></li> |
| |
| </nav> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| |
| |
| <button |
| type='button' |
| class='collapsed '>Ignite for Spark<img class="state-indicator" src="/assets/images/left-nav-arrow.svg"></button> |
| <nav class="sub_pages collapsed"> |
| |
| |
| |
| |
| |
| <li><a href="/docs/2.9.0/extensions-and-integrations/ignite-for-spark/overview" class=''>Overview</a></li> |
| |
| |
| |
| |
| <li><a href="/docs/2.9.0/extensions-and-integrations/ignite-for-spark/ignitecontext-and-rdd" class=''>IgniteContext and IgniteRDD</a></li> |
| |
| |
| |
| |
| <li><a href="/docs/2.9.0/extensions-and-integrations/ignite-for-spark/ignite-dataframe" class=''>Ignite DataFrame</a></li> |
| |
| |
| |
| |
| <li><a href="/docs/2.9.0/extensions-and-integrations/ignite-for-spark/installation" class=''>Installation</a></li> |
| |
| |
| |
| |
| <li><a href="/docs/2.9.0/extensions-and-integrations/ignite-for-spark/spark-shell" class=''>Test Ignite with Spark-shell</a></li> |
| |
| |
| |
| |
| <li><a href="/docs/2.9.0/extensions-and-integrations/ignite-for-spark/troubleshooting" class=''>Troubleshooting</a></li> |
| |
| </nav> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/extensions-and-integrations/hibernate-l2-cache" |
| class='' |
| >Hibernate L2 Cache</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/extensions-and-integrations/mybatis-l2-cache" |
| class='' |
| >MyBatis L2 Cache</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| |
| |
| <button |
| type='button' |
| class='collapsed '>Streaming<img class="state-indicator" src="/assets/images/left-nav-arrow.svg"></button> |
| <nav class="sub_pages collapsed"> |
| |
| |
| |
| |
| |
| <li><a href="/docs/2.9.0/extensions-and-integrations/streaming/kafka-streamer" class=''>Kafka Streamer</a></li> |
| |
| |
| |
| |
| <li><a href="/docs/2.9.0/extensions-and-integrations/streaming/camel-streamer" class=''>Camel Streamer</a></li> |
| |
| |
| |
| |
| <li><a href="/docs/2.9.0/extensions-and-integrations/streaming/flink-streamer" class=''>Flink Streamer</a></li> |
| |
| |
| |
| |
| <li><a href="/docs/2.9.0/extensions-and-integrations/streaming/flume-sink" class=''>Flume Sink</a></li> |
| |
| |
| |
| |
| <li><a href="/docs/2.9.0/extensions-and-integrations/streaming/jms-streamer" class=''>JMS Streamer</a></li> |
| |
| |
| |
| |
| <li><a href="/docs/2.9.0/extensions-and-integrations/streaming/mqtt-streamer" class=''>MQTT Streamer</a></li> |
| |
| |
| |
| |
| <li><a href="/docs/2.9.0/extensions-and-integrations/streaming/rocketmq-streamer" class=''>RocketMQ Streamer</a></li> |
| |
| |
| |
| |
| <li><a href="/docs/2.9.0/extensions-and-integrations/streaming/storm-streamer" class=''>Storm Streamer</a></li> |
| |
| |
| |
| |
| <li><a href="/docs/2.9.0/extensions-and-integrations/streaming/zeromq-streamer" class=''>ZeroMQ Streamer</a></li> |
| |
| |
| |
| |
| <li><a href="/docs/2.9.0/extensions-and-integrations/streaming/twitter-streamer" class=''>Twitter Streamer</a></li> |
| |
| </nav> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| |
| |
| <button |
| type='button' |
| class='collapsed '>Cassandra Integration<img class="state-indicator" src="/assets/images/left-nav-arrow.svg"></button> |
| <nav class="sub_pages collapsed"> |
| |
| |
| |
| |
| |
| <li><a href="/docs/2.9.0/extensions-and-integrations/cassandra/overview" class=''>Overview</a></li> |
| |
| |
| |
| |
| <li><a href="/docs/2.9.0/extensions-and-integrations/cassandra/configuration" class=''>Configuration</a></li> |
| |
| |
| |
| |
| <li><a href="/docs/2.9.0/extensions-and-integrations/cassandra/usage-examples" class=''>Usage Examples</a></li> |
| |
| |
| |
| |
| <li><a href="/docs/2.9.0/extensions-and-integrations/cassandra/ddl-generator" class=''>DDL Generator</a></li> |
| |
| </nav> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/extensions-and-integrations/php-pdo" |
| class='' |
| >PHP PDO</a> |
| |
| </li> |
| |
| |
| |
| </nav> |
| |
| </li> |
| |
| <li> |
| |
| |
| <a href="/docs/2.9.0/plugins" class='' >Plugins</a> |
| |
| </li> |
| |
| <li> |
| |
| |
| |
| |
| |
| |
| <button type='button' class='group-toggle expanded '>Performance and Troubleshooting<img class="state-indicator" src="/assets/images/left-nav-arrow.svg"></button> |
| <nav class='nav-group expanded'> |
| |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/perf-and-troubleshooting/general-perf-tips" |
| class='' |
| >General Performance Tips</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/perf-and-troubleshooting/memory-tuning" |
| class='active' |
| >Memory and JVM Tuning</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/perf-and-troubleshooting/persistence-tuning" |
| class='' |
| >Persistence Tuning</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/perf-and-troubleshooting/sql-tuning" |
| class='' |
| >SQL Tuning</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/perf-and-troubleshooting/thread-pools-tuning" |
| class='' |
| >Thread Pools Tuning</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/perf-and-troubleshooting/troubleshooting" |
| class='' |
| >Troubleshooting and Debugging</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/perf-and-troubleshooting/handling-exceptions" |
| class='' |
| >Handling Exceptions</a> |
| |
| </li> |
| |
| |
| |
| |
| |
| |
| <li> |
| |
| <a href="/docs/2.9.0/perf-and-troubleshooting/yardstick-benchmarking" |
| class='' |
| >Benchmarking With Yardstick</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/perf-and-troubleshooting/memory-tuning.adoc" target="_blank">Edit</a> |
| |
| <h1>Memory and JVM Tuning</h1> |
| |
| <div id="preamble"> |
| <div class="sectionbody"> |
| <div class="paragraph"> |
| <p>This article provides best practices for memory tuning that are relevant for deployments with and without native persistence or an external storage. |
| Even though Ignite stores data and indexes off the Java heap, Java heap is still used to store objects generated by |
| queries and operations executed by your applications. |
| Thus, certain recommendations should be considered for JVM and garbage collection (GC) related optimizations.</p> |
| </div> |
| <div class="admonitionblock note"> |
| <table> |
| <tr> |
| <td class="icon"> |
| <div class="title">Note</div> |
| </td> |
| <td class="content"> |
| <div class="paragraph"> |
| <p>Refer to <a href="/docs/2.9.0/perf-and-troubleshooting/persistence-tuning">persistence</a> tuning article for disk-related |
| optimization practices.</p> |
| </div> |
| </td> |
| </tr> |
| </table> |
| </div> |
| </div> |
| </div> |
| <div class="sect1"> |
| <h2 id="tune-swappiness-setting">Tune Swappiness Setting</h2> |
| <div class="sectionbody"> |
| <div class="paragraph"> |
| <p>An operating system starts swapping pages from RAM to disk when overall RAM usage hits a certain threshold. |
| Swapping can impact Ignite cluster performance. |
| You can adjust the operating system’s setting to prevent this from happening. |
| For Unix, the best option is to either decrease the <code>vm.swappiness</code> parameter to <code>10</code>, or set it to <code>0</code> if native persistence is enabled:</p> |
| </div> |
| <div class="listingblock"> |
| <div class="content"> |
| <pre class="rouge highlight"><code data-lang="shell">sysctl <span class="nt">-w</span> vm.swappiness<span class="o">=</span>0</code></pre> |
| </div> |
| </div> |
| <div class="paragraph"> |
| <p>The value of this setting can prolong GC pauses as well. For instance, if your GC logs show <code>low user time, high |
| system time, long GC pause</code> records, it might be caused by Java heap pages being swapped in and out. To |
| address this, use the <code>swappiness</code> settings above.</p> |
| </div> |
| </div> |
| </div> |
| <div class="sect1"> |
| <h2 id="share-ram-with-os-and-apps">Share RAM with OS and Apps</h2> |
| <div class="sectionbody"> |
| <div class="paragraph"> |
| <p>An individual machine’s RAM is shared among the operating system, Ignite, and other applications. |
| As a general recommendation, if an Ignite cluster is deployed in pure in-memory mode (native |
| persistence is disabled), then you should not allocate more than 90% of RAM capacity to Ignite nodes.</p> |
| </div> |
| <div class="paragraph"> |
| <p>On the other hand, if native persistence is used, then the OS requires extra RAM for its page cache in order to optimally sync up data to disk. |
| If the page cache is not disabled, then you should not give more than 70% of the server’s RAM to Ignite.</p> |
| </div> |
| <div class="paragraph"> |
| <p>Refer to <a href="/docs/2.9.0/memory-configuration/data-regions">memory configuration</a> for configuration examples.</p> |
| </div> |
| <div class="paragraph"> |
| <p>In addition to that, because using native persistence might cause high page cache utilization, the <code>kswapd</code> daemon might not keep up with page reclamation, which is used by the page cache in the background. |
| As a result, this can cause high latencies due to direct page reclamation and lead to long GC pauses.</p> |
| </div> |
| <div class="paragraph"> |
| <p>To work around the effects caused by page memory reclamation on Linux, add extra bytes between <code>wmark_min</code> and <code>wmark_low</code> with <code>/proc/sys/vm/extra_free_kbytes</code>:</p> |
| </div> |
| <div class="listingblock"> |
| <div class="content"> |
| <pre class="rouge highlight"><code data-lang="shell">sysctl <span class="nt">-w</span> vm.extra_free_kbytes<span class="o">=</span>1240000</code></pre> |
| </div> |
| </div> |
| <div class="paragraph"> |
| <p>Refer to <a href="https://events.static.linuxfound.org/sites/events/files/lcjp13_moriya.pdf" target="_blank" rel="noopener">this resource</a> |
| for more insight into the relationship between page cache settings, high latencies, and long GC pauses.</p> |
| </div> |
| </div> |
| </div> |
| <div class="sect1"> |
| <h2 id="java-heap-and-gc-tuning">Java Heap and GC Tuning</h2> |
| <div class="sectionbody"> |
| <div class="paragraph"> |
| <p>Even though Ignite and Ignite keep data in their own off-heap memory regions invisible to Java garbage collectors, Java |
| Heap is still used for objects generated by your applications workloads. |
| For instance, whenever you run SQL queries against an Ignite cluster, the queries will access data and indexes stored in |
| the off-heap memory while the result sets of such queries will be kept in Java Heap until your application reads the result sets. |
| Thus, depending on the throughput and type of operations, Java Heap can still be utilized heavily and this might require |
| JVM and GC related tuning for your workloads.</p> |
| </div> |
| <div class="paragraph"> |
| <p>We’ve included some common recommendations and best practices below. |
| Feel free to start with them and make further adjustments as necessary, depending on the specifics of your applications.</p> |
| </div> |
| <div class="admonitionblock note"> |
| <table> |
| <tr> |
| <td class="icon"> |
| <div class="title">Note</div> |
| </td> |
| <td class="content"> |
| <div class="paragraph"> |
| <p>Refer to <a href="/docs/2.9.0/perf-and-troubleshooting/troubleshooting#debugging-gc-issues">GC debugging techniques</a> sections for best |
| practices on GC logs and heap dumps collection.</p> |
| </div> |
| </td> |
| </tr> |
| </table> |
| </div> |
| <div class="sect2"> |
| <h3 id="generic-gc-settings">Generic GC Settings</h3> |
| <div class="paragraph"> |
| <p>Below are sets of example JVM configurations for applications that can utilize Java Heap on server nodes heavily, thus |
| triggering long — or frequent, short — stop-the-world GC pauses.</p> |
| </div> |
| <div class="paragraph"> |
| <p>For JDK 1.8+ deployments you should use G1 garbage collector. |
| The settings below are a good starting point if 10GB heap is more than enough for your server nodes:</p> |
| </div> |
| <div class="listingblock"> |
| <div class="content"> |
| <pre class="rouge highlight"><code data-lang="shell"><span class="nt">-server</span> |
| <span class="nt">-Xms10g</span> |
| <span class="nt">-Xmx10g</span> |
| <span class="nt">-XX</span>:+AlwaysPreTouch |
| <span class="nt">-XX</span>:+UseG1GC |
| <span class="nt">-XX</span>:+ScavengeBeforeFullGC |
| <span class="nt">-XX</span>:+DisableExplicitGC</code></pre> |
| </div> |
| </div> |
| <div class="paragraph"> |
| <p>If G1 does not work for you, consider using CMS collector and starting with the following settings. |
| Note that 10GB heap is used as an example and a smaller heap can be enough for your use case:</p> |
| </div> |
| <div class="listingblock"> |
| <div class="content"> |
| <pre class="rouge highlight"><code data-lang="shell"><span class="nt">-server</span> |
| <span class="nt">-Xms10g</span> |
| <span class="nt">-Xmx10g</span> |
| <span class="nt">-XX</span>:+AlwaysPreTouch |
| <span class="nt">-XX</span>:+UseParNewGC |
| <span class="nt">-XX</span>:+UseConcMarkSweepGC |
| <span class="nt">-XX</span>:+CMSClassUnloadingEnabled |
| <span class="nt">-XX</span>:+CMSPermGenSweepingEnabled |
| <span class="nt">-XX</span>:+ScavengeBeforeFullGC |
| <span class="nt">-XX</span>:+CMSScavengeBeforeRemark |
| <span class="nt">-XX</span>:+DisableExplicitGC</code></pre> |
| </div> |
| </div> |
| <div class="admonitionblock note"> |
| <table> |
| <tr> |
| <td class="icon"> |
| <div class="title">Note</div> |
| </td> |
| <td class="content"> |
| <div class="paragraph"> |
| <p>If you use <a href="/docs/2.9.0/persistence/native-persistence">Ignite native persistence</a>, we recommend that you set the |
| <code>MaxDirectMemorySize</code> JVM parameter to <code>walSegmentSize * 4</code>. |
| With the default WAL settings, this value is equal to 256MB.</p> |
| </div> |
| </td> |
| </tr> |
| </table> |
| </div> |
| </div> |
| <div class="sect2"> |
| <h3 id="advanced-memory-tuning">Advanced Memory Tuning</h3> |
| <div class="paragraph"> |
| <p>In Linux and Unix environments, it’s possible that an application can face long GC pauses or lower performance due to |
| I/O or memory starvation due to kernel specific settings. |
| This section provides some guidelines on how to modify kernel settings in order to overcome long GC pauses.</p> |
| </div> |
| <div class="admonitionblock warning"> |
| <table> |
| <tr> |
| <td class="icon"> |
| <div class="title">Warning</div> |
| </td> |
| <td class="content"> |
| <div class="paragraph"> |
| <p>All the shell commands given below were tested on RedHat 7. |
| They may differ for your Linux distribution. |
| Before changing the kernel settings, make sure to check the system statistics/logs to confirm that you really have a problem. |
| Consult your IT department before making changes at the Linux kernel level in production.</p> |
| </div> |
| </td> |
| </tr> |
| </table> |
| </div> |
| <div class="paragraph"> |
| <p>If GC logs show <code>low user time, high system time, long GC pause</code> then most likely memory constraints are triggering swapping or scanning of a free memory space.</p> |
| </div> |
| <div class="ulist"> |
| <ul> |
| <li> |
| <p>Check and adjust the <a href="/docs/2.9.0/perf-and-troubleshooting/memory-tuning#tune-swappiness-setting">swappiness settings</a>.</p> |
| </li> |
| <li> |
| <p>Add <code>-XX:+AlwaysPreTouch</code> to JVM settings on startup.</p> |
| </li> |
| <li> |
| <p>Disable NUMA zone-reclaim optimization.</p> |
| <div class="listingblock"> |
| <div class="content"> |
| <pre class="rouge highlight"><code data-lang="shell">sysctl <span class="nt">-w</span> vm.zone_reclaim_mode<span class="o">=</span>0</code></pre> |
| </div> |
| </div> |
| </li> |
| <li> |
| <p>Turn off Transparent Huge Pages if RedHat distribution is used.</p> |
| <div class="listingblock"> |
| <div class="content"> |
| <pre class="rouge highlight"><code data-lang="shell"><span class="nb">echo </span>never <span class="o">></span> /sys/kernel/mm/redhat_transparent_hugepage/enabled |
| <span class="nb">echo </span>never <span class="o">></span> /sys/kernel/mm/redhat_transparent_hugepage/defrag</code></pre> |
| </div> |
| </div> |
| </li> |
| </ul> |
| </div> |
| </div> |
| <div class="sect2"> |
| <h3 id="advanced-io-tuning">Advanced I/O Tuning</h3> |
| <div class="paragraph"> |
| <p>If GC logs show <code>low user time, low system time, long GC pause</code> then GC threads might be spending too much time in the kernel space being blocked by various I/O activities. |
| For instance, this can be caused by journal commits, gzip, or log roll over procedures.</p> |
| </div> |
| <div class="paragraph"> |
| <p>As a solution, you can try changing the page flushing interval from the default 30 seconds to 5 seconds:</p> |
| </div> |
| <div class="listingblock"> |
| <div class="content"> |
| <pre class="rouge highlight"><code data-lang="shell">sysctl <span class="nt">-w</span> vm.dirty_writeback_centisecs<span class="o">=</span>500 |
| sysctl <span class="nt">-w</span> vm.dirty_expire_centisecs<span class="o">=</span>500</code></pre> |
| </div> |
| </div> |
| <div class="admonitionblock note"> |
| <table> |
| <tr> |
| <td class="icon"> |
| <div class="title">Note</div> |
| </td> |
| <td class="content"> |
| <div class="paragraph"> |
| <p>Refer to the <a href="/docs/2.9.0/perf-and-troubleshooting/persistence-tuning">persistence tuning</a> section for the optimizations related to disk. |
| Those optimizations can have a positive impact on GC.</p> |
| </div> |
| </td> |
| </tr> |
| </table> |
| </div> |
| </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="#tune-swappiness-setting">Tune Swappiness Setting</a></li> |
| <li><a href="#share-ram-with-os-and-apps">Share RAM with OS and Apps</a></li> |
| <li><a href="#java-heap-and-gc-tuning">Java Heap and GC Tuning</a> |
| <ul class="sectlevel2"> |
| <li><a href="#generic-gc-settings">Generic GC Settings</a></li> |
| <li><a href="#advanced-memory-tuning">Advanced Memory Tuning</a></li> |
| <li><a href="#advanced-io-tuning">Advanced I/O Tuning</a></li> |
| </ul> |
| </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?1609302782' async crossorigin></script> |
| <script type='module' src='/assets/js/versioning.js?1609302782' async crossorigin></script> |
| </body> |
| |
| </html> |