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From "Asankha C. Perera (JIRA)" <j...@apache.org>
Subject [jira] Resolved: (HTTPCORE-127) Expose improved API for lifecycle management
Date Thu, 13 Dec 2007 18:57:43 GMT

     [ https://issues.apache.org/jira/browse/HTTPCORE-127?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Asankha C. Perera resolved HTTPCORE-127.
----------------------------------------

    Resolution: Fixed

Oleg

Thanks for your review and comments, and I have not exposed the ServerSocketChannel over the
public API as you suggested. Also I have removed the maintenance shutdown method for now,
and kept only pause() and resume()

Please feel free to make any more changes to the code if required, and I have checked in this
code to svn

thanks
asankha 

> Expose improved API for lifecycle management
> --------------------------------------------
>
>                 Key: HTTPCORE-127
>                 URL: https://issues.apache.org/jira/browse/HTTPCORE-127
>             Project: HttpComponents Core
>          Issue Type: Improvement
>          Components: HttpCore NIO
>    Affects Versions: 4.0-alpha6
>            Reporter: Asankha C. Perera
>             Fix For: 4.0-beta1
>
>         Attachments: httpcore-127.patch
>
>
> Apache Synapse uses HttpCore and we would like to stop accepting new connections to put
our servers into a "maintenance" mode. In this mode any in-flight requests already being served
will continue as normal (i.e. reading, writing etc) but new connections should be rejected,
so that a load balancer could direct new connections to another instance in the cluster. The
requirement is to then update configuration, apply patches or cleanly shutdown etc. for maintenance
without effecting any in-flight requests.
> Implementation wise I think this would be fairly straightforward as we can remove OP_ACCEPT
from the interested ops.
> On the mailing list Odi suggested that we tackle this at a broader level by exposing
lifecycle management APIs
> "I suggest create, start, stop, destroy methods in some classes/APIs (semantics of JBoss
Service MBeans)"

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