[Openstack] Mirantis instances lose IPs frequently
Raja T Nair
rtnair at gmail.com
Tue Aug 8 11:41:18 UTC 2017
Really stuck here. Can someone please show some light on this issue? Please
forgive me for too many follow ups.
On Sunday, 6 August 2017, Raja T Nair <rtnair at gmail.com> wrote:
> Hello All,
> Mirantis version 7.0
> ovs version: 2.3.1-1~u14.04
> Some more reading on this points to possible bugs in ovs versions and
> advise to upgrade the same.
> Eg: Redhat solution doc 2104871.
> Can someone put some more light on this?
> If needed, is there a way for me to upgrade the ovs packages and
> dependencies alone, while leaving rest of the cluster intact? Any help on
> this is highly appreciated.
> On Friday, 4 August 2017, Raja T Nair <rtnair at gmail.com
>> Hello All,
>> Mirantis version 7.0
>> ovs version: 2.3.1-1~u14.04
>> Lately we observe that many instances lose IPs and they never get it back
>> even after reboot. On a detailed check on the compute nodes where this
>> happened, we noticed the openflow dropping packets.
>> This command's output shows lot of ``dropped'' status.
>> #ovs-ofctl dump-flows br-int
>> And #ovs-ofctl del-flows br-int
>> and a subsequent reboot of problem instances seem to fix the issue and
>> instances regain their IPs.
>> We really don't know why the corruption/drop happens and how it got fixed.
>> Trying to understand this issue a bit deeper. Can someone help me with
>> Is there a better way to address this problem?
>> Best Regards,
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