Solace uses to completely avoid disk reads on failover by synchronously keeping the hot-standby appliance in sync at all times. If you aren’t already familiar with Solace’s failover capabilities you might want to check out this post which explains Solace HA and shows some fast failovers at high message rates and this post about failover with large message spools.

The video below demonstrates a failover with over 700 GB of messages spooled across a total of more than 350 million messages. Additionally there are online clients sending persistent messages at 100K msgs/sec. With all of this message spool and live traffic, the failover time is still amazingly low.

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Solace

Solace helps large enterprises become modern and real-time by giving them everything they need to make their business operations and customer interactions event-driven. With PubSub+, the market’s first and only event management platform, the company provides a comprehensive way to create, document, discover and stream events from where they are produced to where they need to be consumed – securely, reliably, quickly, and guaranteed.

Behind Solace technology is the world’s leading group of data movement experts, with nearly 20 years of experience helping global enterprises solve some of the most demanding challenges in a variety of industries – from capital markets, retail, and gaming to space, aviation, and automotive.

Established enterprises such as SAP, Barclays and the Royal Bank of Canada, multinational automobile manufacturers such as Renault and Groupe PSA, and industry disruptors such as Jio use Solace’s advanced event broker technologies to modernize legacy applications, deploy modern microservices, and build an event mesh to support their hybrid cloud, multi-cloud and IoT architectures.

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