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https://issues.apache.org/jira/browse/CLOUDSTACK-9175?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15712952#comment-15712952
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ASF GitHub Bot commented on CLOUDSTACK-9175:
--------------------------------------------

Github user sureshanaparti commented on the issue:

    https://github.com/apache/cloudstack/pull/1248
  
    This PR is no longer valid since #1257 replaces this. Closing...


> [VMware DRS] Adding new host to DRS cluster does not participate in load 
> balancing
> ----------------------------------------------------------------------------------
>
>                 Key: CLOUDSTACK-9175
>                 URL: https://issues.apache.org/jira/browse/CLOUDSTACK-9175
>             Project: CloudStack
>          Issue Type: Bug
>      Security Level: Public(Anyone can view this level - this is the 
> default.) 
>          Components: Management Server, VMware
>    Affects Versions: 4.5.2
>            Reporter: Suresh Kumar Anaparti
>            Assignee: Suresh Kumar Anaparti
>
> When a new VMware host is added into a cluster, Cloudstack, by default, 
> doesn't create all the port groups present in the cluster. And since it 
> doesn't have all the necessary networking port groups (existing VM's port 
> groups) it is not eligible to participate in DRS load balancing or HA.
> Steps:
> 1. Have a DRS and HA cluster in fully automated mode, with two hosts H1 and 
> H2 created in the vCenter.
> 2. Configure this cluster in Cloudstack and create couple of VMs.
> 3. Start stressing the host by running some cpu hogging scripts in each of 
> the VM.
> 4. Enable maintenance mode on one of the host - say H1 from Cloudstack.
> 5. Also, quickly enable maintenance mode on host H1 from vCenter.
> (This should migrate all the VMs to host H2) Make sure none of the VMs are 
> present on host H1.
> 6. Add host H3 into DRS cluster from vCenter and from Cloudstack as well.
> 7. At this point, the load is definitely imbalanced. This can be verified 
> from vCenter ( Click on cluster -> Go to Summary tab -> under vSphere DRS 
> section, it should show 'Load imbalanced'
> Now, as per DRS rules, the load should be balanced across all the available 
> hosts.
> In this case, even after adding new host, the load is imbalanced. 
> The reason for the load imbalance is VMs (created from Cloudstack) are not 
> eligible to migrate to new host because networks or the cloud portgroups are 
> not available on the new host H3 (except for private).



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