The different MAC address for a pair of redundant router have issues when short
time network outrage happened. When this happened:
1. BACKUP(r-2) cannot receive the broadcast from MASTER(r-1).
2. Then r-2 would announce it's MASTER after 3 seconds, and send gratuitous ARP
to the gateway of public ip(usually a rack router).
3. The gateway of public ip would update it's ARP cache to associate the public
ip of the network to the MAC of r-2.
4. In the meantime, r-1 still sending out VRRP broadcast(due to network issue,
the broadcast never arrived at r-2), and acting as MASTER.
5. After network outrage, r-2 would receive the higher priority VRRP broadcast
from MASTER again, then receded as BACKUP.
6. But the public gateway would still associate public ip with MAC of r-2, thus
caused the issue. r-1 would no longer able to receive any packets from public
network.
And there is no way for r-1 to send gratuitous ARP again, because it's always
consider itself as MASTER, no state changed, and no hook existed for receiving
lower priority broadcast.
So I would revert this change, and introduce another commit to ensure the newly
create redundant router would share the same MAC as the first one.
This reverts commit 9f257aa60b.
Detail: Previously in the code we allowed the configuration to create ssh
keypairs and put them in the configuration table so that systemvms could have
ssh key auth and work properly if the user was 'cloud' or if the developer
configuration item was set to true. It got changed to requiring both the cloud
user and the developer flag (using an || on a negative) somwhere along the way.
This changes it back to && on a negative to allow us to run as non-cloud users
with the dev flag set, and for cloud to deploy properly without the developer
flag.
Signed-off-by: Marcus Sorensen <marcus@betterservers.com> 1358285190 -0700
CS allows to add multiple VLANs and subnets to a shared network, but it doesn't really work, for example , vm on second VLAN or subnet cannot get IP through DHCP
This patch will not allow to add mulitple VLANS or subnets into shared network
CLOUDSTACK-982:Do not allow add multiple VLANs or subnets into shared network
The label associated with the hypervisor nic to isolate traffic types by
Guest/Mgmt/Public/Storage was not passed in the marvin.traffictype
object and sent through to mgmt server resulting in traffic types not
being applied.
Signed-off-by: Prasanna Santhanam <tsp@apache.org>
Although I still think the templates aren't well maintained, I just
added 12.04 since this is an LTS and people probably want it in the
list of templates.
This system should be more generic I think though.
A couple of lines back there is:
if (isSystem != null) {
sc.addAnd("systemUse", SearchCriteria.Op.EQ, isSystem);
}
So it was set redundantly, this can be removed.
Create OvsVifDriver to deal with openvswitch specifics for plugging
intefaces
Create a parameter to set the bridge type to use in
LibvirtComputingResource.
Create several functions to get bridge information from openvswitch
Add a check to detect the libvirt version and throw an exception when
the version is to low ( < 0.9.11 )
Fix classpath loading in Script.findScript to deal with missing path
separators at the end.
Add notification to the BridgeVifDriver that lswitch broadcast type is
not supported.
Create OvsVifDriver to deal with openvswitch specifics for plugging
intefaces
Create a parameter to set the bridge type to use in
LibvirtComputingResource.
Create several functions to get bridge information from openvswitch
Add a check to detect the libvirt version and throw an exception when
the version is to low ( < 0.9.11 )
Fix classpath loading in Script.findScript to deal with missing path
separators at the end.
Add notification to the BridgeVifDriver that lswitch broadcast type is
not supported.
Min Chen
Sheng Yang
Marcus Sorensen
Chip Childers
Chiradeep Vittal
anthony
Pranav Saxena
Prasanna Santhanam
Wido den Hollander
Hugo Trippaers
Rohit Yadav