Concurrency and Database Connections in Ruby with ActiveRecord | Heroku Dev Center
When increasing concurrency by using a multi-threaded web server like Puma, or multi-process web server like Unicorn, you must be aware of the number of connections your app holds to the database and how many connections the database can accept. Each thread or process requires a different connection to the database. To accommodate this, Active Record provides a connection pool that can hold severa
Deploying Tomcat-based Java Web Applications with Webapp Runner | Heroku Dev Center
Additional ResourcesHomeElementsProductsPricingCareersHelpStatusEventsPodcastsCompliance CenterHeroku BlogHeroku Blog Find out what's new with Heroku on our blog. Visit Blog Webapp Runner allows you to launch an application in a Tomcat container on any computer that has a JRE installed. No previous steps to install Tomcat are required when using Webapp Runner. It’s a regular JAR file that can be e
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