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https://issues.apache.org/jira/browse/FINERACT-880?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17081739#comment-17081739
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Michael Vorburger commented on FINERACT-880:
--------------------------------------------
FINERACT-135 seems directly relevant to this, and should be considered a
pre-requisite to this.
> Fineract Caches & Kubernetes Deployment
> ---------------------------------------
>
> Key: FINERACT-880
> URL: https://issues.apache.org/jira/browse/FINERACT-880
> Project: Apache Fineract
> Issue Type: Improvement
> 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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