From the performance perspective it will require additional CPU time
because of the need to run that bash script.
I will try to prepare it as simple as possible but probability that it
will kill server when there will be spawned huge amount of routers is
not so big - after the implementation we can test CPU utilization with
this validation enabled.
Cheers,
Lubosz (diltram) Kosnik
On 01/22/2016 09:43 AM, Anna Kamyshnikova wrote:
Hi!
This is great that you look into this issue! I think that first
solution looks more solid, my concern here is how does this will
affect the performance?
On Thu, Jan 21, 2016 at 12:12 PM, Lubosz Kosnik
<lubosz.kos...@intel.com <mailto:lubosz.kos...@intel.com>> wrote:
He neutrinos,
Currently I'm working on this bug [1]. Almost one year ago Yoni
Shafrir prepared a patch to fix this issue but he got in review
information that this solution must be changed because it's using
only one script to check the GW availability and because of that
it cannot be used in multi tenat environment.
I tooked his code and was trying to upgrade that code to support
multiple scripts but I was designed separate solution for that.
I would like to know what do you think about this solution.
1. Add bash script generator to neutron/agent/linux/keepalived.py
2. There will be one script per one keepalived instance per node
3. There are two possible solutions for checking is everything is
working OK. Script will verify:
a. That all interfaces are up - internal router interfaces in
namespace, external interface taken from neutron configuration
file and also br-tun/br-int interfaces.
b. That GW is pingable from router NS - there is only one
problem what if GW is not configured in router already - plus we
could ping other network node or other server which IP is
specified in some configuration.
That solution will also fix this issue [2].
I would hear from you what do you think about that two possible
solutions and what do you think about whole solution at all.
Cheers,
Lubosz (diltram) Kosnik
[1] https://bugs.launchpad.net/neutron/+bug/1365461
[2] https://bugs.launchpad.net/neutron/+bug/1375625
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Regards,
Ann Kamyshnikova
Mirantis, Inc
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