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From "dsclose (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CLOUDSTACK-6975) Service monitoring starts dnsmasq on backup router when using redundant VRs
Date Wed, 30 Mar 2016 14:30:25 GMT

    [ https://issues.apache.org/jira/browse/CLOUDSTACK-6975?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15218035#comment-15218035
] 

dsclose commented on CLOUDSTACK-6975:
-------------------------------------

According to CLOUDSTACK-9035:

* Passwords are sent to both master and backup routers.
* But the password server is not running on the backup router.

This suggests that dnsmasq running on the backup router is not an issue (despite the keepalived
notify_backup script disabling the service.) The issue with password resets is probably better
dealt with in CLOUDSTACK-9035.

That allows us to limit the scope of this issue to whether dnsmasq should be running on the
backup router at all.

> Service monitoring starts dnsmasq on backup router when using redundant VRs
> ---------------------------------------------------------------------------
>
>                 Key: CLOUDSTACK-6975
>                 URL: https://issues.apache.org/jira/browse/CLOUDSTACK-6975
>             Project: CloudStack
>          Issue Type: Bug
>      Security Level: Public(Anyone can view this level - this is the default.) 
>          Components: Virtual Router
>    Affects Versions: 4.3.0
>         Environment: KVM
>            Reporter: Magnus Bengtsson
>
> When using a network offering with redundant routers the default setting of EnableServiceMonitoring
enables monit on the routers.
> "network.router.EnableServiceMonitoring	service monitoring in router enable/disable option,
default true	false"
> This causes monit to run dnsmasq on both the Master and Backup router. When the backup
router assigns dhcp to clients, password and userdata retrieval from that node fails since
the services are not running on the backup router.



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