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Posted to bugs@httpd.apache.org by bu...@apache.org on 2006/11/06 16:00:17 UTC

DO NOT REPLY [Bug 40910] New: - configuration problem with more than 1 balancer

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           Summary: configuration problem with more than 1 balancer
           Product: Apache httpd-2
           Version: 2.2.3
          Platform: Other
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: mod_proxy_balancer
        AssignedTo: bugs@httpd.apache.org
        ReportedBy: markus.lind@yellowmap.de


When defining more than 1 proxy balancers the system sometimes ignores
configurations and takes the first balancer for all requests. ErrorLog and
configtest say everything is ok, the effect seems to be depending of the order
of configuration

The following configuration doesn't work

<VirtualHost xxx.xxx.xxx.xxx>
    <Proxy balancer://cluster1>
        BalancerMember http://10.x.x.x loadfactor=20 retry=60
        BalancerMember http://10.x.x.y loadfactor=10 retry=60
    </Proxy>
    <Proxy balancer://cluster2>
        BalancerMember http://10.x.x.x:8080 loadfactor=20 retry=60
        BalancerMember http://10.x.x.y:8080 loadfactor=10 retry=60
    </Proxy>
     RewriteEngine on
     RewriteRule ^/specialpath/(.*)$ balancer://cluster2/specialpath/$1 [NC,P,L]
     RewriteRule ^/(.*)$ balancer://cluster1/$1 [P,L]
</VirtualHost>

Every request to specialpath is routed to the webs linked in cluster1
If I change the sequence of the 2 balancers it works

<VirtualHost xxx.xxx.xxx.xxx>
    <Proxy balancer://cluster2>
        BalancerMember http://10.x.x.x:8080 loadfactor=20 retry=60
        BalancerMember http://10.x.x.y:8080 loadfactor=10 retry=60
    </Proxy>
    <Proxy balancer://cluster1>
        BalancerMember http://10.x.x.x loadfactor=20 retry=60
        BalancerMember http://10.x.x.y loadfactor=10 retry=60
    </Proxy>
     RewriteEngine on
     RewriteRule ^/specialpath/(.*)$ balancer://cluster2/specialpath/$1 [NC,P,L]
     RewriteRule ^/(.*)$ balancer://cluster1/$1 [P,L]
</VirtualHost>

Balancer Manager Webpage shows both clusters, but in case 1 the ports of cluster
2 are "lost", in case 2 it is shown correctly with port 8080

With 3 or more backend clusters this issue would be even more complicated to test

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DO NOT REPLY [Bug 40910] - configuration problem with more than 1 balancer

Posted by bu...@apache.org.
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------- Additional Comments From markus.lind@yellowmap.de  2006-11-06 09:22 -------
Thanks, the Patch fixes the problem



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DO NOT REPLY [Bug 40910] - configuration problem with more than 1 balancer

Posted by bu...@apache.org.
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------- Additional Comments From rpluem@apache.org  2006-11-06 08:32 -------
Created an attachment (id=19092)
 --> (http://issues.apache.org/bugzilla/attachment.cgi?id=19092&action=view)
Patch against trunk


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DO NOT REPLY [Bug 40910] - configuration problem with more than 1 balancer

Posted by bu...@apache.org.
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------- Additional Comments From rpluem@apache.org  2007-09-02 03:00 -------
Proposed for backport as r571936 (http://svn.apache.org/viewvc?rev=571936&view=rev).

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DO NOT REPLY [Bug 40910] - configuration problem with more than 1 balancer

Posted by bu...@apache.org.
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rpluem@apache.org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |NEEDINFO




------- Additional Comments From rpluem@apache.org  2006-11-06 08:31 -------
Could you please give the attached patch a try? It should fix your problem.

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DO NOT REPLY [Bug 40910] - configuration problem with more than 1 balancer

Posted by bu...@apache.org.
DO NOT REPLY TO THIS EMAIL, BUT PLEASE POST YOUR BUG�
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<http://issues.apache.org/bugzilla/show_bug.cgi?id=40910>.
ANY REPLY MADE TO THIS MESSAGE WILL NOT BE COLLECTED AND�
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rpluem@apache.org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEEDINFO                    |RESOLVED
         Resolution|                            |FIXED




------- Additional Comments From rpluem@apache.org  2007-09-03 14:01 -------
Backported to 2.2.x as r572420 (http://svn.apache.org/viewvc?rev=572420&view=rev).

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DO NOT REPLY [Bug 40910] - configuration problem with more than 1 balancer

Posted by bu...@apache.org.
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------- Additional Comments From rpluem@apache.org  2006-12-03 13:26 -------
Committed to trunk as r481901 (http://svn.apache.org/viewvc?view=rev&rev=481901).

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