nova-manage is an admin tool,just as you said,it opeates the DB directly,and can be executed both in nova-network node and nova-compute node,it is a simple way to work as an admin tool before keystone come out. in folsom,there will be and admin tool like novaclient to take the place of nova-manage.
2012/4/12 Vaze, Mandar <mandar.v...@nttdata.com>: > It is my understanding that in multi-node setup : > > · nova-manage can be executed from any machine which may not be > running nova-network process. (Or should nova-manage always be run on > nova-network node ?) > > · nova-manage does DB operations and delegates the actual networking > calls to nova-network process ? > > > > Is this understanding correct ? > > > > I traced “nova-manage network create” and nova-manage network delete” using > FlatDHCPManager (default for devstack/stack.sh) > > Both these calls seem to be doing only DB operations. > > BTW, nova-network process was shutdown during both “network create” and > “network delete” – Still both operations were successful. > > > > But when using QuantumManager as network manager – nova-manage seems to be > doing networking operations like “iptables-save” (during network create) and > “kill_dhcp” (during network delete) > > (via linux-net L3 driver) > > > > Since nova-manage command may be executed on a host which isn’t running > nova-network – network commands like “iptables” and “kill -9 <pid of > dnsmasq>” on host running nova-manage seems incorrect. > > > > For the first scenario (iptables-save during “network create” – there is > already a defect in LP : https://bugs.launchpad.net/nova/+bug/977738 > > and review : https://review.openstack.org/6451 > > > > I would like your comments and opinions which would help me understand > “What nova-manage should and should NOT do” > > > > Thanks, > > -Mandar > > > > > > > > > > > ______________________________________________________________________ > Disclaimer:This email and any attachments are sent in strictest confidence > for the sole use of the addressee and may contain legally privileged, > confidential, and proprietary data. If you are not the intended recipient, > please advise the sender by replying promptly to this email and then delete > and destroy this email and any attachments without any further use, copying > or forwarding > > -- > Mailing list: https://launchpad.net/~netstack > Post to : netstack@lists.launchpad.net > Unsubscribe : https://launchpad.net/~netstack > More help : https://help.launchpad.net/ListHelp > -- Mailing list: https://launchpad.net/~netstack Post to : netstack@lists.launchpad.net Unsubscribe : https://launchpad.net/~netstack More help : https://help.launchpad.net/ListHelp
