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<h1 class="h1 innerhero__h1">
In-Memory Database<br />
<span class="with-apache"> With Apache Ignite</span>
</h1>
<div class="innerhero__descr pt-2 h5">
In-memory database that scales horizontally across memory<br />
and disk with full SQL support
</div>
<div class="innerhero__action"><a class="button innerhero__button" href="https://ignite.apache.org/docs/latest/index">Start Coding</a></div>
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<h2 class="compute2__h2">In-Memory Database Overview</h2>
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<h3 class="h5 hub1__title">What is an in-memory database?</h3>
<p class="hub1__text">An in-memory database (IMDB) is a data management system that stores data primarily in the computer’s main memory.</p>
<h3 class="h5 hub1__title hub1__titleend">How does an in-memory database work?</h3>
<p class="hub1__text">In-memory databases rely on spinning disks for data storage. IMDBs allow mission-critical applications to benefit from faster response times than disk-based databases.</p>
</div>
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<!-- /.hub1 -->
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<h2 class="base1__h2 h5">Apache Ignite as a distributed in-memory database scales horizontally across memory and disk without compromise</h2>
<div class="base1__blocks flexi">
<div class="base1__block">
<p class="base1__text">Apache Ignite works with memory, disk, and Intel Optane as active storage tiers.</p>
<p class="base1__text pt-1">This <a href="/arch/multi-tier-storage.html">multi-tier</a> architecture combines the advantages of in-memory computing with disk durability and strong consistency, all in one system.</p>
</div>
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<div class="compute2-points__item fz20"></div>
<h3 class="base1__black">Speed of memory</h3>
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<div class="compute2-points__item fz20"></div>
<h3 class="base1__black">Strong consistency</h3>
</div>
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<div class="compute2-points__item fz20"></div>
<h3 class="base1__black">Durability of disk</h3>
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<h2 class="compute2__h2">Advantages Of Ignite Multi-Tiered Architecture</h2>
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<h3 class="fz20 compute2item__title">Instantaneous cluster restarts</h3>
<p class="compute2__text base2__text">Ignite becomes fully operational from disk upon a cluster startup or restarts without requiring a preload or a warm-up the memory tier.</p>
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<h3 class="fz20 compute2item__title">Multi-tiered storage</h3>
<p class="compute2__text base2__text">Ignite treats disk as an active storage layer, allowing it to cache a subset of the data in memory and query both in-memory and disk-only records with SQL and all other available APIs.</p>
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<section class="base3">
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<h2 class="base3__h2 h4">Apache Ignite as an in-memory database <br />supports a variety of developer APIs</h2>
<div class="base3__blocks flexi">
<div class="base3__block">
<h3 class="base3__h3">Essential Developer APIs</h3>
<div class="base3__images flexi">
<div class="base3__item flexi">
<img class="base3__image" src="/img/features/03-distributed-SQL.svg" alt="sql" />
<div class="base3__subtext">SQL</div>
</div>
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<div class="base3__subtext">Key-value</div>
</div>
<div class="base3__item flexi">
<img class="base3__image" src="/img/features/04-ACID-transactions.svg" alt="acid" />
<div class="base3__subtext">
ACID<br />
transactions
</div>
</div>
</div>
<p class="base3__text">Enable you to request, join, and group distributed datasets.</p>
</div>
<div class="base3__block">
<h3 class="base3__h3">High-Performance Computing APIs</h3>
<div class="base3__images flexi">
<div class="base3__item flexi">
<img class="base3__image" src="/img/features/06-compute-APIs.svg" alt="sql" />
<div class="base3__subtext">Compute</div>
</div>
<div class="base3__item flexi">
<img class="base3__image" src="/img/features/07-machine-learning.svg" alt="apis" />
<div class="base3__subtext">
Machine<br />
learning
</div>
</div>
<div class="base3__item flexi">
<img class="base3__image" src="/img/features/08-services.svg" alt="acid" />
<div class="base3__subtext">Services</div>
</div>
</div>
<p class="base3__text">Execute logic close to the data, thus eliminating expensive data shuffling over the network.</p>
</div>
<div class="base3__block">
<h3 class="base3__h3">Real-Time Streaming APIs</h3>
<div class="base3__images flexi">
<div class="base3__item flexi">
<img class="base3__image" src="/img/features/09-streaming.svg" alt="sql" />
<div class="base3__subtext">Streaming</div>
</div>
<div class="base3__item flexi">
<img class="base3__image" src="/img/features/10-continuous-queries.svg" alt="apis" />
<div class="base3__subtext">
Continuous<br />
Queries
</div>
</div>
<div class="base3__item flexi">
<img class="base3__image" src="/img/features/11-messaging.svg" alt="acid" />
<div class="base3__subtext">Messaging</div>
</div>
</div>
<p class="base3__text base3__textend">Allow the seamless implementation of event-driven architectures.</p>
</div>
</div>
</div>
</section>
<section class="hub5">
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<h2 class="compute2__h2">In-Memory Database Ignite User Stories</h2>
<div class="highcases__two">
<div class="hub5__twowrap flexi pt-5">
<div class="hub5__item">
<article class="comvideo">
<div class="comvideo__box">
<a class="comvideo__screen" href="https://www.youtube.com/watch?v=-t-Syy9blXQ" data-youtube="data-youtube"
><span class="comvideo__txt comvideo__txt--white hub5__video">Apache Ignite As A Hybrid Transactional-Analytical Processing Solution At A Large Investment Bank</span
><img src="/img/usecases/database/one-video.png" alt=""
/></a>
</div>
<div class="comvideo__descr pt-1"></div>
</article>
<div class="h4 hub5__title">BNP Paribas</div>
<p class="hub5__text base5__text">
with the help of Apache Ignite managed to design, build, and optimize a hybrid transactional-analytical processing (HTAP) solution. This enabled the bank to make key business decisions in real time.
</p>
</div>
<div class="hub5__item">
<article class="comvideo">
<div class="comvideo__box">
<a class="comvideo__screen" href="https://www.youtube.com/watch?v=B8A8yR_e6VM&amp;t=2s" data-youtube="data-youtube"
><span class="comvideo__txt comvideo__txt--white hub5__video">Real Time Exposure Management Using Ignite</span><img src="/img/usecases/datagrid/two-video.png" alt=""
/></a>
</div>
<div class="comvideo__descr pt-1"></div>
</article>
<div class="h4 hub5__title">JP MorganChase</div>
<p class="hub5__text base5__text">faced an increasing need to apply transformations to large datasets in real time. To meet this need, their team selected Ignite to achieve persistence, caching and integrated compute.</p>
</div>
</div>
</div>
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