[jira] [Commented] (ARTEMIS-1404) In-memory Mode for Embedded Server

["Clebert Suconic (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/ARTEMIS-1404?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17050340#comment-17050340 ] 

Clebert Suconic commented on ARTEMIS-1404:
------------------------------------------

We already have the in-memory journal. it's probably easy to use it.. but bootstrapping the testsuite seems a major task. (I'm not talking about complexity here.. but the ammount of lines to be changed).


we would need to find a clever way to minimize the number of lines changed. (perhaps on ActiveMQTestBase)

> In-memory Mode for Embedded Server
> ----------------------------------
>
>                 Key: ARTEMIS-1404
>                 URL: https://issues.apache.org/jira/browse/ARTEMIS-1404
>             Project: ActiveMQ Artemis
>          Issue Type: New Feature
>          Components: Broker
>            Reporter: ocean
>            Priority: Major
>
> Problem
> We have several tests where we launch and use an embedded Artemis broker. In order to make these tests faster we would like to run Artemis in a "in-memory" mode where it writes no files to disk. The goal would be to start a new broker, use it, and then shut it down without ever having written anything to disk.
> Proposed Solution
> Based on my own internal research the easiest way to accomplish this would be for Artemis to move to using the Java7 Path API [1] for interacting with the disk. Then we could plug in jimfs [2] (an in-memory FileSystem provider) and get the completely in-memory mode. The problem is that even when disabling persistence Artemis still requires a java.io.File to specify its broker directory:
> {code:java}
>                 ConfigurationImpl config = new ConfigurationImpl();
> 		config.setPersistenceEnabled(false);
> 		config.setBrokerInstance(new File("target/bus/artemis"));
> {code}
> If we could change this to take a Path instead of a File we would get complete in-memory mode.
> [1] https://docs.oracle.com/javase/7/docs/api/java/nio/file/Path.html
> [2] https://github.com/google/jimfs



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