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Redis for On-Premises

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Redis Session Manager for Tomcat is an off-the-shelf product that allows you to store sessions of Apache Tomcat in Redis. This On-Premises feature enables you to use cache in multiple Tomcats, i.e, to share the cache between multiple sessions.

Caching accelerates application response times and helps applications scale by placing data that needed frequently close to the application. Redis, which an open source, in-memory, data structure server, allows application processes to have full statelessness, and at the same time, reduces duplication of data or requests to external data sources.

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Requirements

Customers who use this solution will need to verify that Redis is already installed and running on their end and then to connect to it.

There are no additional requirements for connecting to the Redis product.

Deployment Best Practice
We recommend running the Redis On-Premises solution in a separate machine - not the Backend - to provide maximum efficiency.

Configuring Redis for On-Premises

To configure Redis for the OverOps On-Premises solution, run the server (using ./takipi-server.sh...) with the following parameters:

Parameter

Description

Comments

--redis-nodes

These are the Redis nodes.

Example:
"redis://domain-name1:6379 redis://domain-name2:6379"

Multiple nodes can be configured with the redis-nodes parameter.

Redis nodes must be appear between quote marks.

When specifying multiple nodes, they can be separated by a semicolon (;) or by a space.

Remember that you must provide a port for each node (e.g., 6379).

--redis-type

Redis cluster type: these can be SINGLE, ELASTICACHE or MASTER_SLAVE.

The Redis for On-Premises feature supports three Redis types. The default type is SINGLE.

When specifying the --redis-nodes:

  • If you select SINGLE then any additional nodes will be ignored.
  • If you select MASTER_SLAVE or ELASTICACHE then the first node will be the master and the second the slave.
--no-redisCancels/removes the Redis configurationsAfter configuring Redis, the configuration is retained for future sessions.To cancel or remove these configurations, use this parameter.

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Note

All parameters are persisted under /opt/takipi-server/bin/server-envs.sh including the Redis endpoints.

Updated almost 2 years ago