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Posted to dev@hc.apache.org by "Oleg Kalnichevski (JIRA)" <ji...@apache.org> on 2007/12/01 13:22:43 UTC
[jira] Commented: (HTTPCORE-127) Expose improved API for lifecycle
management
[ https://issues.apache.org/jira/browse/HTTPCORE-127?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12547425 ]
Oleg Kalnichevski commented on HTTPCORE-127:
--------------------------------------------
Asankha,
The DefaultListeningIOReactor should now have a better API for managing its listening endpoints. With the new API one can open new and close active endpoints dynamically while the I/O reactor remains up and running. Please review the API and give me feedback or feel free to enhance it yourself.
Cheers
Oleg
> 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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