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From "Oleg Kalnichevski (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HTTPCORE-127) Expose improved API for lifecycle management
Date Wed, 31 Oct 2007 12:56:50 GMT

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

Oleg Kalnichevski updated HTTPCORE-127:

    Fix Version/s: 4.0-beta1


Feel free to take a stab at it. You may want to start off by define an abstract API for this
feature, which could go into beta1, so this issue would no longer block the API freeze. This
would leave us with enough time to work out implementation details.



> 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
> 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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