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If you have an event, discussion, or other item to contribute to the Weekly News, you can add it directly to the wiki by editing the issue you want your item to appear in. (The next week's issue is created before the current issue is published - so at any time there should be at least one issue ready to edit.) Alternatively, you can send to the cloudstack-dev mailing list with a subject including NEWS: description of topic or email the newsletter editor directly (jzb at apache.org), again with the subject NEWS: description of topic. Please include a link to the discussion in the mailing list archive or Web page with details of the event, etc.

Major Discussions

Syslog Enhancements

Anshul Gangwar has revived a discussion from December about using log4j to send syslog messages. See the FS on the wiki, and join in the discussion on the -dev mailing list if you have anything to add.

Getting Rid of KVM Patchdisk Raises Discussion of New System VM Programming Model

Marcus Sorensen started a discussion last week about getting rid of the patchdisk that KVM creates on primary storage when bringing up a VM. Marcus says, "This patch disk has been bugging me for awhile, as it creates a volume
that isn't really tracked anywhere or known about in cloudstack's database. Up until recently these would just litter the KVM primary
storages, but there's been some triage done to attempt to clean them up when the system vms go away. It's not perfect. It also can be
inefficient for certain primary storage types, for example if you end up creating a bunch of 10MB luns on a SAN for these."

Later in the discussion, Edison Su responded to Marcus' approach to handling the issue. Edison says "we put a lot of logic into init scripts inside system VM, which has unnecessarily complicated the system VM programming." Ultimately, Edison suggest that we may need "to start working on a new system VM programming model now? Better to just put a Python daemon inside system VM, and provide restful API through link local IP address(or private IP if it's vmware), then mgt server or hypervisor agent code can just send commands to the Python daemon through HTTP, instead of SSH."

CloudStack Planet - Posts from the CloudStack Community

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