Red Hat Bugzilla – Full Text Bug Listing
|Summary:||[apache] Unable to monitor virtual host with address specified as 0.0.0.0[:<port>]|
|Product:||[Other] RHQ Project||Reporter:||Lukas Krejci <lkrejci>|
|Component:||Plugins||Assignee:||RHQ Project Maintainer <rhq-maint>|
|Status:||CLOSED CURRENTRELEASE||QA Contact:||Mike Foley <mfoley>|
|Version:||4.0.0||CC:||hrupp, mazz, skondkar|
|Fixed In Version:||Doc Type:||Bug Fix|
|Doc Text:||Story Points:||---|
|Last Closed:||2013-09-04 03:16:05 EDT||Type:||---|
|oVirt Team:||---||RHEL 7.3 requirements from Atomic Host:|
|Bug Depends On:|
|Bug Blocks:||919199, 678340|
Description Lukas Krejci 2011-03-23 07:39:49 EDT
Description of problem: when the "any address" IP address is specified in the vhost specification in the apache configuration, RHQ is unable to collect metrics on it with a log message like: (org.rhq.plugins.apache.ApacheVirtualHostServiceComponent)- Unable to match the Virtual Host [0.0.0.0:80] with any of the SNMP advertised vhosts: [localhost, localhost]. It won't be possible to monitor the Virtual Host. Version-Release number of selected component (if applicable): Note that we also should detect the IP6 wildcard addresses (i.e. [::] or its "fuller" forms). How reproducible: always Steps to Reproduce: 1. define a virtual host with 0.0.0.0 as its address in apache config 2. restart apache 3. discover the apache instance using RHQ Actual results: the virtual host "0.0.0.0:80" (or whatever port you've specified) is discovered but no metrics are collected on it and the above mentioned warning message appears in the agent.log Expected results: metrics collected, no warning in the logs Additional info:
Comment 1 Lukas Krejci 2011-03-23 09:45:38 EDT
A workaround for virtual hosts is to replace the "0.0.0.0" with "*" (without quotes), which behaves the same except the fact that "*" allows IPv6 traffic. For the Listen directive, the workaround is not to specify the IP/hostname at all and just specify the port. This has the same caveat with IPv6 traffic as the vhost workaround.
Comment 2 John Mazzitelli 2011-04-01 11:37:09 EDT
see if we can fix or at minimum document the workarounds somewhere
Comment 3 Lukas Krejci 2011-05-19 08:51:45 EDT
This should work in RHQ 4.0.x as a consequence of fixing bug 694476.
Comment 4 Sunil Kondkar 2011-06-29 05:15:38 EDT
Verified in Version: 4.1.0-SNAPSHOT Build Number: c57ee65 Defined a virtual host 0.0.0.0:8082 in httpd.conf and inventoried Apache. Created a script which wgets the URL http://0.0.0.0:8082. The monitoring tab displays data for the virtual host. Please refer the attached screenshot. Marking as verified.
Comment 6 Heiko W. Rupp 2013-09-04 03:16:05 EDT
Fixed in an old RHQ release - closing now