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Re: New to Cloudstack - Issues going in to production - Public and Guest bridges not up KVM


Hi Adam,

Yes get rid of NM – it will cause you nothing but headaches.

Regards,
Dag Sonstebo
Cloud Architect
ShapeBlue

On 30/04/2018, 14:40, "Adam Witwicki" <awitwicki@xxxxxxxxxxxxx> wrote:

    Hi Dan
    
    I see these in the KVM hosts messages log
    
    Apr 30 14:29:57 OIS-MH-P1-C1-H1-A NetworkManager[1217]: <info>  [1525094997.7754] manager: (bond0.999): new VLAN device (/org/freedesktop/NetworkManager/Devices/11)
    Apr 30 14:29:57 OIS-MH-P1-C1-H1-A NetworkManager[1217]: <info>  [1525094997.7779] device (bond0.999): link connected
    Apr 30 14:29:57 OIS-MH-P1-C1-H1-A NetworkManager[1217]: <info>  [1525094997.7833] manager: (brbond0-999): new Bridge device (/org/freedesktop/NetworkManager/Devices/12)
    
    Is it worth uninstalling NetworkManager?
    
    Thanks
    
    Adam
    
    -----Original Message-----
    From: Dag Sonstebo <Dag.Sonstebo@xxxxxxxxxxxxx>
    Sent: 30 April 2018 14:24
    To: users@xxxxxxxxxxxxxxxxxxxxx
    Subject: Re: New to Cloudstack - Issues going in to production - Public and Guest bridges not up KVM
    
    ** This mail originated from OUTSIDE the Oakford corporate network. Treat hyperlinks and attachments in this email with caution. **
    
    Hi Adam,
    
    As per Nicolas’ comments probably a good idea to increase the verbosity of your agent logs and see if anything pops up – also check your normal /var/log/messages.
    
    My twopence worth apart from this:
    - Your config looks OK.
    - Have you made sure LACP is actually up and running on your switch stack? If LACP on KVM can’t handshake correctly with the switches I could see you having problems.
    - What does a “cat /proc/net/bonding/bond0” tell you when the bridge is down?
    - Overall I suspect this could also be down to NIC drivers – it may be an idea to make sure these are fully up to date.
    - If all else fails and you cannot find a resolution you could bodge a workaround with libvirt hooks – by putting a script to up all bridges into /etc/libvirt/hooks/network – see https://libvirt.org/hooks.html for more info. I would use this as your last option though.
    
    Regards,
    Dag Sonstebo
    Cloud Architect
    ShapeBlue
    
    On 30/04/2018, 14:13, "Nicolas Bouige" <n.bouige@xxxxxxxx> wrote:
    
        Adam,
    
    
        Yes ;)
    
        Sorry for my misunderstanding, i saw that when i check on my own KVM configuration.
    
    
        Do you have any log from KVM agent cloudstack or MGMT ?
    
        Nicolas Bouige
        DIMSI
        cloud.dimsi.fr<http://www.cloud.dimsi.fr>
        4, avenue Laurent Cely
        Tour d’Asnière – 92600 Asnière sur Seine
        T/ +33 (0)6 28 98 53 40
    
    
    
        ________________________________
        De : Adam Witwicki <awitwicki@xxxxxxxxxxxxx>
        Envoyé : lundi 30 avril 2018 14:36
        À : users@xxxxxxxxxxxxxxxxxxxxx
        Objet : New to Cloudstack - Issues going in to production - Public and Guest bridges not up KVM
    
        Hello
    
        I have managed to test Cloudstack in the Lab with very little issues, but now going into production (adding Loadbalanced Cloudstack management servers and LACP nic bonding) I am having a few issues.
    
        When starting my first instance the network bridges stay down
    
        13: brbond0-999: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN qlen 1000
    
        If I bring this up using ip link set dev brbond0-999 up the bridge comes up fine and the systemVMs work.
    
        Any ideas?
    
        Kind Regards
    
        Adam Witwicki
    
    
        Centos 7
        Cloudstack 4.9.3.1
        KVM 3.2.0
    
        /etc/sysconfig/network-scripts/ifcfg-enp4s0f0
        TYPE="Ethernet"
        USERCTL=no
        MASTER=bond0
        SLAVE=yes
        NAME="enp4s0f0"
        UUID="abe1d2f9-253c-4246-a7d6-b7e7e396ce8f"
        DEVICE="enp4s0f0"
        ONBOOT="yes"
        NM_CONTROLLED=no
        BOOTPROTO=none
    
    
        /etc/sysconfig/network-scripts/ifcfg-enp4s0f0
        TYPE=Ethernet
        BOOTPROTO=none
        USERCTL=no
        MASTER=bond0
        SLAVE=yes
        NAME=enp4s0f1
        UUID=f6cec93b-e271-44d4-818b-c94393133d23
        DEVICE=enp4s0f1
        ONBOOT=yes
        NM_CONTROLLED=no
    
    
        /etc/sysconfig/network-scripts/ifcfg-bond0
        DEVICE=bond0
        ONBOOT=yes
        BONDING_OPTS='mode=4 miimon=100'
        BRIDGE=cloudbr0
        NM_CONTROLLED=no
    
    
        /etc/sysconfig/network-scripts/ifcfg-cloudbr0
        DEVICE=cloudbr0
        TYPE=Bridge
        ONBOOT=yes
        BOOTPROTO=static
        IPV6INIT=no
        IPV6_AUTOCONF=no
        DELAY=5
        STP=yes
        IPADDR= x.x.x.x
        GATEWAY= x.x.x.x
        PREFIX=xx
        DNS1= x.x.x.x
        DNS2= x.x.x.x
    
        bridge name     bridge id               STP enabled     interfaces
        brbond0-999             8000.a0369f20953c       no              bond0.999
                                                                vnet4
                                                                vnet5
        cloud0          8000.fe00a9fe0006       no              vnet0
                                                                vnet1
        cloudbr0                8000.a0369f20953c       yes             bond0
                                                                vnet2
                                                                vnet3
        virbr0          8000.525400a48eba       yes             virbr0-nic
    
    
    
    
    
    
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    Dag.Sonstebo@xxxxxxxxxxxxx
    www.shapeblue.com
    53 Chandos Place, Covent Garden, London  WC2N 4HSUK @shapeblue
    
    
    
    Disclaimer Notice:
    This email has been sent by Oakford Technology Limited, while we have checked this e-mail and any attachments for viruses, we can not guarantee that they are virus-free. You must therefore take full responsibility for virus checking.
    This message and any attachments are confidential and should only be read by those to whom they are addressed. If you are not the intended recipient, please contact us, delete the message from your computer and destroy any copies. Any distribution or copying without our prior permission is prohibited.
    Internet communications are not always secure and therefore Oakford Technology Limited does not accept legal responsibility for this message. The recipient is responsible for verifying its authenticity before acting on the contents. Any views or opinions presented are solely those of the author and do not necessarily represent those of Oakford Technology Limited.
    Registered address: Oakford Technology Limited, 10 Prince Maurice Court, Devizes, Wiltshire. SN10 2RT.
    Registered in England and Wales No. 5971519
    
    


Dag.Sonstebo@xxxxxxxxxxxxx 
www.shapeblue.com
53 Chandos Place, Covent Garden, London  WC2N 4HSUK
@shapeblue