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From "Adrian Woodhead (JIRA)" <j...@apache.org>
Subject [jira] Commented: (DAEMON-12) [daemon] java fails to bind on port 80
Date Fri, 30 Jan 2009 17:44:59 GMT

    [ https://issues.apache.org/jira/browse/DAEMON-12?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12668950#action_12668950
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Adrian Woodhead commented on DAEMON-12:
---------------------------------------

I can confirm that, as mentioned in the e-mail thread, commenting out the following lines
in unix/native/jsvc-unix.c resolves the issue:
{noformat} 
    if (set_caps(0)!=0) {
        log_debug("set_caps (0) failed");
        return(4);
    }
{noformat} 
(lines 503-506 in 1.0.1 source).

It would be great if a solution to this could be found and incorporated into a future release.

> [daemon] java fails to bind on port 80
> --------------------------------------
>
>                 Key: DAEMON-12
>                 URL: https://issues.apache.org/jira/browse/DAEMON-12
>             Project: Commons Daemon
>          Issue Type: Bug
>         Environment: Operating System: Linux
> Platform: PC
>            Reporter: Ostap Bender
>            Priority: Blocker
>
> Platform is Ubuntu Linux, kernel 2.6.15 amd64 smp on a dual core processor.
> When I start Tomcat with jsvc and the Http connector on port 80 java fails to
> bind on port 80. I added an extra debug statement in set_caps to tell me when
> set_caps is called. In catalina.out I see before java even tries to bind, three
> calls: the first with the value 1216, second with 1024 (CAP_NET_BIND_SERVICE)
> and the last with 0 (downgrade).
> After commenting out set_caps(0) from the jsvc-unix.c Tomcat starts ok.
> What is the reason for the downgrade happening so soon? Is it a race condition
> turned bad by the use of a multiprocessor?
> BTW, the Readme should mention that the module capabilities should be loaded.

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