Hazelcast Striim Hot Cache – Reducing Windows of Inconsistency to Milliseconds

Joint hot cache solution enables real-time, push-based cache synchronization with its underlying database

Palo Alto, Calif., November 3, 2016Hazelcast, the leading open source in-memory data grid (IMDG) with hundreds of thousands of installed clusters and over 16 million server starts per month, and Striim, provider of the only end-to-end, real-time data integration and streaming analytics platform, today announced the launch of the Hazelcast Striim Hot Cache. This integration enables real-time, push-based propagation of changes from the database to the cache. For organizations that manage high volumes of data, Hazelcast Striim Hot Cache ensures continuous synchronization between the cache and its underlying database, providing consistency with the system of record.

With Hazelcast Striim Hot Cache, companies are able to reduce the latency of propagation of data from a backend database into a Hazelcast cache to milliseconds. This provides organizations with the flexibility to run multiple applications off a single database, keeping Hazelcast cache refreshes up-to-date while adhering to low latency SLAs.

Traditionally, if there is a one-to-one relationship between an application and its underlying database, and no other applications or systems are able to make changes to that database, then the intermediary cache stays in-sync with the database. However, if changes are made to the database directly by other applications, then data held in the cache immediately becomes stale.

A common workaround to this problem is “time to live” or TTL. This is when companies purge documents from the cache after a period of time. For many this is a “near enough” solution. However, the process lowers cache efficiency and is inadequate for businesses that manage high transaction data or need to maintain high levels of customer experience.CDC Wizard

Hazelcast Striim Hot Cache leverages Striim’s Change Data Capture (CDC) functionality to capture changes in the underlying database in real time (within milliseconds), and push just those changes instantly to the cache. Through CDC, Striim is able to recognize which tables and key values have changed. Striim immediately captures these changes with their table and key, and, using the Hazelcast Striim writer, pushes those changes into the cache.

The full data for the change is available to Striim. An Object Relational configuration is provided for each cache, so that the changes can be applied to the domain model in Hazelcast. These changes can be inserts, updates and deletes. During transformation, Striim can also perform data enrichment (joining CDC updates with other data, or performing aggregation and more complex processing) before writing the Object to the cache.

Striim offers a CDC Wizard to speed deployment. Users can quickly configure the capture of change data from a variety of databases (including Oracle, MS SQL Server, MySQL and HPE NonStop), and propagate that data to their Hazelcast cache. No configuration is required in Hazelcast.

“Having a cache that’s out-of-sync with its underlying database can have dramatic consequences for important transactional data, perishable real-time data, or customer experience,” said Ali Kutay, Chairman, President and CEO of Striim. “We are delighted to work with Hazelcast to reduce the latency of their refreshes to milliseconds by integrating our real-time data integration products, including change data capture, with their cache.”

“Caching data in-memory is well proven in speeding up and scaling applications. But holding that extra copy of data creates a synchronization issue,” said Greg Luck, CEO of Hazelcast. “The Hazelcast Striim Hot Cache solves the most difficult form of this problem – the case where other applications are also updating the database being cached. We are very excited to be bringing this critical enterprise solution to market.”

Learn more about Hazelcast Striim Hot Cache solution:

Download a fully loaded evaluation version of Striim for Hazelcast Hot Cache:

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About Hazelcast, Inc.

Hazelcast is the leading provider of operational in-memory computing with tens of thousands of installed clusters and over 16 million server starts per month. The Hazelcast In-Memory Data Grid helps leading companies, like Capital One, Chicago Board Options Exchange, Deutsche Bank, Ellie Mae, and Mizuho Securities USA, manage their data and distribute processing using in-memory storage and parallel execution for breakthrough application speed and scale.

Hazelcast’s developer-friendly approach makes it easy to modernize existing applications while providing a platform for building new innovative solutions. Hazelcast is headquartered in Silicon Valley’s Palo Alto, with offices in Ankara, Istanbul, London, and New York City. For more information, visit or follow us on Twitter @Hazelcast.

About Striim

Striim™ (pronounced “stream”) is an enterprise-grade, real-time integration + intelligence platform. Striim makes it easy to create streaming data pipelines – including change data capture – for real-time log correlation, cloud integration, edge processing, and streaming analytics. Companies worldwide use Striim to deliver real-time analysis and visualizations for fraud/cybersecurity, customer experience/QoS, replication risk management, and Internet of Things (IoT) analytics. For more information, please visit, read our blog at or follow @striimteam. The fully loaded Striim platform is also available for download.


Hazelcast Media Contact:
Darren Cottom
Global PR Hazelcast
+44 (0) 1295 713172
+44 (0) 7713 652216

Striim Media Contact:
Rebecca Metz
Metz Communications
+1 512 560-5211