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From "Paul Joseph Davis (JIRA)" <j...@apache.org>
Subject [jira] Commented: (COUCHDB-216) Make couchdb adhere more to OTP guidelines
Date Sun, 30 Aug 2009 20:01:33 GMT

    [ https://issues.apache.org/jira/browse/COUCHDB-216?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12749315#action_12749315
] 

Paul Joseph Davis commented on COUCHDB-216:
-------------------------------------------

There are quite a few Erlang tools that require the .app file to be present. Things like application:start(couchdb)
require it. I'm pretty sure appmon requires it. It may seem unimportant but it breaks a whole
bunch of things. Consider not having a .app file like not having a setup.py in a distributed
Python module.

The .rel stuff I think is orthogonal to making a package for Debian. From what I've read about
Erlang's release tools, it seems like they were designed for pushing packages to a homogenous
environment for hot code upgrades and the like. As you saw, that kinda breaks down in a Debian
style distribution environment.

Bottom line, the .rel is unimportant, but the .app is quite important.



> Make couchdb adhere more to OTP guidelines
> ------------------------------------------
>
>                 Key: COUCHDB-216
>                 URL: https://issues.apache.org/jira/browse/COUCHDB-216
>             Project: CouchDB
>          Issue Type: Improvement
>            Reporter: Martin S
>         Attachments: 0001-add-couch_app-and-couch_sup.patch, 0001-Generate-the-modules-section-of-couch.app-via-the-Ma.patch,
0002-add-missing-registered-process-names.patch, 0003-make-couchdb-startup-script-use-couch.rel.-load-conf.patch,
couch_startup_refactor.patch, rearrange.tar.gz
>
>
> CouchDB could adhere to otp standards in a better way. 
> Currently we have:
> - couch.app is not uptodate
> - couch_server.erl is an amalgam of 2 behaviours, which is considered being "not good".
> From my beginner's perception of OTP, it seems CouchDB is not treated as a running application
when it is actually running. E.g. appmon doesn't show the application once CouchDB is started.


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