[mod_cluster-issues] [JBoss JIRA] Resolved: (MODCLUSTER-91) Connector bind address of 0.0.0.0 propagated to proxy
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https://jira.jboss.org/jira/browse/MODCLUSTER-91?page=com.atlassian.jira....
]
Paul Ferraro resolved MODCLUSTER-91.
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Fix Version/s: 1.1.0.Beta1
(was: 1.1.0.CR1)
Resolution: Done
Restored 1.0.x connector address defaulting logic - checking not only for undefined
connector address, but also wildcard addresses. This does not work well if proxies are
auto-discovered (there may be no proxies at the time of initialization). A better fix
involves adding MCMPHandler.isEstablished(), which returns true only when a connection is
established to a proxy, and the local address of the socket is known and the connector
address is set. ModClusterService should postpone sending any CONFIG messages, and any
load factor calculation, until MCMPHandler.isEstablished() = true. We should also
investigate whether it is a good idea to associate an MCMPHandler with a single engine -
so that the MCMPHandler can establish the connector address when appropriate.
Connector bind address of 0.0.0.0 propagated to proxy
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Key: MODCLUSTER-91
URL: https://jira.jboss.org/jira/browse/MODCLUSTER-91
Project: mod_cluster
Issue Type: Bug
Affects Versions: 1.0.1.GA
Reporter: Brian Stansberry
Assignee: Paul Ferraro
Fix For: 1.1.0.Beta1
Marek Goldmann wrote:
> I'm encountered a strange error. When I bind JBoss instance to 0.0.0.0
> address instead of a fixed ethernet address, node gets registered in
> mod_cluster, shows in mod_cluster-manager, but every request to
> registered contexts throws 503 error.
>
> httpd error log:
>
> [Fri Aug 07 03:21:05 2009] [error] (111)Connection refused: proxy:
> ajp: attempt to connect to 0.0.0.0:8009 (0.0.0.0) failed
> [Fri Aug 07 03:21:05 2009] [error] ap_proxy_connect_backend disabling
> worker for (0.0.0.0)
> [Fri Aug 07 03:21:15 2009] [error] proxy: ajp: disabled connection for
> (0.0.0.0)
> [Fri Aug 07 03:21:25 2009] [error] proxy: ajp: disabled connection for
> (0.0.0.0)
>
> This looks like a bug for me, because many administrators are binding
> JBoss to 0.0.0.0.
The java side needs to understand that 0.0.0.0 is useless as a client address and send
something useful. Trick is deciding what's useful.
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