[jira] [Updated] (FINERACT-880) Fineract Caches & Kubernetes Deployment

["Michael Vorburger (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/FINERACT-880?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Michael Vorburger updated FINERACT-880:
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    Component/s: Performance

> Fineract Caches & Kubernetes Deployment
> ---------------------------------------
>
>                 Key: FINERACT-880
>                 URL: https://issues.apache.org/jira/browse/FINERACT-880
>             Project: Apache Fineract
>          Issue Type: Improvement
>          Components: Performance
>            Reporter: Michael Vorburger
>            Priority: Major
>              Labels: kubernetes, scalability, technical
>
> The Kubernetes deployment contributed in FINERACT-783 by default creates a Kubernetes Deployment with a single Pod (based on Fineract's Docker Compose set-up).
> The goal of this issue is to investigate what is missing to make it possible to "scale horizontally" by increasing the number of replicas.
> For example, I believe Fineract code caches certain things? I'm not clear if they are enabled or disabled by default. Such caches typically do not "just work" if you scale the Kubernetes deployment, because they will cause "cache inconsistencies", unless the caches collaborate to invalidate entries when appropriate. This probably need some configuration.  Some references:
>  * Log about some EhCache configuration when Fineract starts
>  * [cache.xml|https://github.com/apache/fineract/blob/develop/fineract-provider/src/main/resources/META-INF/spring/cache.xml] and [ehcache.xml|https://github.com/apache/fineract/blob/develop/fineract-provider/src/main/resources/META-INF/spring/ehcache.xml] in Fineract source code
>  * [package org.apache.fineract.infrastructure.cache|https://github.com/apache/fineract/tree/develop/fineract-provider/src/main/java/org/apache/fineract/infrastructure/cache] in Fineract source code
>  * [~kumaranath_fernando] ([~kumaranathfernando] ?)'s GSOC 2018 [proposal|https://cwiki.apache.org/confluence/display/FINERACT/Google+Summer+Code+2018+-+Scalability+and+performance+improvements] and [final report|https://cwiki.apache.org/confluence/display/FINERACT/GSOC+2018+Final+Report-+Scalability+and+performance+improvements]
>  * [~apremalal]'s GSOC 2013 work about caching: [YouTube demo|https://www.youtube.com/watch?v=30X-uHo5MDg], [Mifos.org blog|https://mifos.org/blog/meet-2013-google-summer-code-class-interns/],
>  * "Data Layer" on [https://cwiki.apache.org/confluence/display/FINERACT/Key+Design+Principles]
> I personally do not know the details about caching in Fineract. We should either fine existing create new documentation about this.  It would be worth to reach out to the mailing list to start a discussion and get input on what is required to make this work. 
> FYI [~xurror], [~awasum], [~angeh]



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